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The purpose of this study was to examine age-related differences in muscle performance in women divided into young (YW, 20–39 years, n = 29) middle-aged (MAW, 40–59 years, n = 33), and older (OW, ≥60 years, n = 40) age groups. Methods: Hand grip strength, vertical jump performance, and knee extensor (KE) strength (0 deg/s, 60 deg/s, and 240 deg/s), speed of movement (SoM; at 1 Nm, 20%, 40%, and 60% isometric strength), and endurance (30-repetition test at 60 degs/s and 240 deg/s) were assessed. Computed tomography-acquired muscle cross-sectional area (mCSA) was measured and included to determine specific strength (KE strength/mCSA). Results: Hand grip strength was similar across groups, while jump performance declined with age (YW and MAW > OW, p < 0.001). KE strength declined significantly with age (all conditions p < 0.01), while specific strength was similar across groups. SoM was significantly higher for YW and MAW compared to OW (both p < 0.01). An age × velocity interaction revealed YW KE endurance was similar between conditions, whereas MAW and OW displayed significantly better endurance during the 60 deg/s condition. OW displayed impaired KE endurance at 240 deg/s (vs. YW and MAW, p < 0.01) but improved at 60 deg/s (vs. YW, p < 0.01). Dynamic torque decline increased with age (YW < OW, p = 0.03) and was associated with intramuscular adipose tissue (r = 0.21, p = 0.04). Conclusions: Performance declines were most evident among OW, but few performance deficits had emerged in MAW. Interestingly, strength declines disappeared after normalizing to mCSA and endurance appears to be velocity-dependent.
Ryan Miller; Eduardo Freitas; Aaron Heishman; Keldon Peak; Samuel Buchanan; J. Kellawan; Hugo Pereira; Debra Bemben; Michael Bemben. Muscle Performance Changes with Age in Active Women. International Journal of Environmental Research and Public Health 2021, 18, 4477 .
AMA StyleRyan Miller, Eduardo Freitas, Aaron Heishman, Keldon Peak, Samuel Buchanan, J. Kellawan, Hugo Pereira, Debra Bemben, Michael Bemben. Muscle Performance Changes with Age in Active Women. International Journal of Environmental Research and Public Health. 2021; 18 (9):4477.
Chicago/Turabian StyleRyan Miller; Eduardo Freitas; Aaron Heishman; Keldon Peak; Samuel Buchanan; J. Kellawan; Hugo Pereira; Debra Bemben; Michael Bemben. 2021. "Muscle Performance Changes with Age in Active Women." International Journal of Environmental Research and Public Health 18, no. 9: 4477.
COVID-19 is a highly infectious respiratory disease which leads to several clinical conditions related to the dysfunction of the respiratory system along with other physical and psychological complaints. Severely affected patients are referred to intensive care units (ICUs), limiting their possibilities for physical exercise. Whole body vibration (WBV) exercise is a non-invasive, physical therapy, that has been suggested as part of the procedures involved with pulmonary rehabilitation, even in ICU settings. Therefore, in the current review, the World Association of Vibration Exercise Experts (WAVEX) reviewed the potential of WBV exercise as a useful and safe intervention for the management of infected individuals with COVID-19 by mitigating the inactivity-related declines in physical condition and reducing the time in ICU. Recommendations regarding the reduction of fatigue and the risk of dyspnea, the improvement of the inflammatory and redox status favoring cellular homeostasis and the overall improvement in the quality of life are provided. Finally, practical applications for the use of this paradigm leading to a better prognosis in bed bound and ICU-bound subjects is proposed.
Borja Sañudo; Adérito Seixas; Rainer Gloeckl; Jörn Rittweger; Rainer Rawer; Redha Taiar; Eddy A. Van Der Zee; Marieke J.G. Van Heuvelen; Ana Cristina Lacerda; Alessandro Sartorio; Michael Bemben; Darryl Cochrane; Trentham Furness; Danúbia De Sá-Caputo; Mario Bernardo-Filho. Potential Application of Whole Body Vibration Exercise for Improving the Clinical Conditions of COVID-19 Infected Individuals: A Narrative Review from the World Association of Vibration Exercise Experts (WAVex) Panel. International Journal of Environmental Research and Public Health 2020, 17, 3650 .
AMA StyleBorja Sañudo, Adérito Seixas, Rainer Gloeckl, Jörn Rittweger, Rainer Rawer, Redha Taiar, Eddy A. Van Der Zee, Marieke J.G. Van Heuvelen, Ana Cristina Lacerda, Alessandro Sartorio, Michael Bemben, Darryl Cochrane, Trentham Furness, Danúbia De Sá-Caputo, Mario Bernardo-Filho. Potential Application of Whole Body Vibration Exercise for Improving the Clinical Conditions of COVID-19 Infected Individuals: A Narrative Review from the World Association of Vibration Exercise Experts (WAVex) Panel. International Journal of Environmental Research and Public Health. 2020; 17 (10):3650.
Chicago/Turabian StyleBorja Sañudo; Adérito Seixas; Rainer Gloeckl; Jörn Rittweger; Rainer Rawer; Redha Taiar; Eddy A. Van Der Zee; Marieke J.G. Van Heuvelen; Ana Cristina Lacerda; Alessandro Sartorio; Michael Bemben; Darryl Cochrane; Trentham Furness; Danúbia De Sá-Caputo; Mario Bernardo-Filho. 2020. "Potential Application of Whole Body Vibration Exercise for Improving the Clinical Conditions of COVID-19 Infected Individuals: A Narrative Review from the World Association of Vibration Exercise Experts (WAVex) Panel." International Journal of Environmental Research and Public Health 17, no. 10: 3650.
Monitoring external training load (eTL) has become popular for team sport for managing fatigue, optimizing performance, and guiding return-to-play protocols. During indoor sports, eTL can be measured via inertial measurement units (IMU) or indoor positioning systems (IPS). Though each device provides unique information, the relationships between devices has not been examined. Therefore, the purpose of this study was to assess the association of eTL between an IMU and IPS used to monitor eTL in team sport. Retrospective analyses were performed on 13 elite male National Collegiate Athletic Association (NCAA) Division I basketball players (age: 20.2 ± 1.2 years, height: 201.1 ± 7.6 cm, mass: 96.8 ± 8.8 kg) from three practices during the off-season training phase. A one-way analysis of variance was used to test differences in eTL across practices. Pearson’s correlation examined the association between the Distance traveled during practice captured by IPS compared to PlayerLoad (PL), PlayerLoad per Minute (PL/Min), 2-Dimensional PlayerLoad (PL2D), 1-Dimensional PlayerLoad Forward (PL1D-FWD), Side (PL1D-SIDE), and Up (PL1D-UP) captured from the IMU. Regression analyses were performed to predict PL from Distance traveled. The eTL characteristics during Practice 1: PL = 420.4 ± 102.9, PL/min = 5.8 ± 1.4, Distance = 1645.9 ± 377.0 m; Practice 2: PL = 472.8 ± 109.5, PL/min = 5.1 ± 1.2, Distance = 1940.0 ± 436.3 m; Practice 3: PL = 295.1 ± 57.8, PL/min = 5.3 ± 1.0, Distance = 1198.2 ± 219.2 m. Significant (p ≤ 0.05) differences were observed in PL, PL2D, PL1D-FWD, PL1D-SIDE, PL1D-UP, and Distance across practices. Significant correlations (p ≤ 0.001) existed between Distance and PL parameters (Practice 1: r = 0.799–0.891; Practice 2: r = 0.819–0.972; and Practice 3: 0.761–0.891). Predictive models using Distance traveled accounted for 73.5–89.7% of the variance in PL. Significant relationships and predictive capacities exists between systems. Nonetheless, each system also appears to capture unique information that may still be useful to performance practitioners regarding the understanding of eTL.
Aaron Heishman; Keldon Peak; Ryan Miller; Brady Brown; Bryce Daub; Eduardo Freitas; Michael Bemben. Associations Between Two Athlete Monitoring Systems Used to Quantify External Training Loads in Basketball Players. Sports 2020, 8, 33 .
AMA StyleAaron Heishman, Keldon Peak, Ryan Miller, Brady Brown, Bryce Daub, Eduardo Freitas, Michael Bemben. Associations Between Two Athlete Monitoring Systems Used to Quantify External Training Loads in Basketball Players. Sports. 2020; 8 (3):33.
Chicago/Turabian StyleAaron Heishman; Keldon Peak; Ryan Miller; Brady Brown; Bryce Daub; Eduardo Freitas; Michael Bemben. 2020. "Associations Between Two Athlete Monitoring Systems Used to Quantify External Training Loads in Basketball Players." Sports 8, no. 3: 33.
The purpose of the present study was to establish the intrasession and intersession reliability of variables obtained from a force plate that was used to quantitate lower extremity inter-limb asymmetry during the bilateral countermovement jump (CMJ). Secondarily, a comparison was performed to determine the influence of the jump protocol CMJ with or without an arm swing (CMJ AS and CMJ NAS, respectively) on inter-limb asymmetries. Twenty-two collegiate basketball players performed three CMJ AS and three CMJ NAS on dual force platforms during two separate testing sessions. A majority of variables met the acceptable criterion of intersession and intrasession relative reliability (ICC > 0.700), while fewer than half met standards established for absolute reliability (CV < 10%). CMJ protocol appeared to influence asymmetries; Concentric Impulse-100 ms, Eccentric Braking Rate of Force Development, Eccentric Deceleration, and Force at Zero velocity were significantly different between jumping conditions (CMJAS versus CMJ NAS; p < 0.05). The present data establish the reliability and smallest worthwhile change of inter-limb asymmetries during the CMJ, while also identifying the influence of CMJ protocol on inter-limb asymmetries, which can be useful to practitioners and clinicians in order to effectively monitor changes associated with performance, injury risk, and return-to-play strategies.
Aaron Heishman; Bryce Daub; Ryan Miller; Brady Brown; Eduardo Freitas; Michael Bemben. Countermovement Jump Inter-Limb Asymmetries in Collegiate Basketball Players. Sports 2019, 7, 103 .
AMA StyleAaron Heishman, Bryce Daub, Ryan Miller, Brady Brown, Eduardo Freitas, Michael Bemben. Countermovement Jump Inter-Limb Asymmetries in Collegiate Basketball Players. Sports. 2019; 7 (5):103.
Chicago/Turabian StyleAaron Heishman; Bryce Daub; Ryan Miller; Brady Brown; Eduardo Freitas; Michael Bemben. 2019. "Countermovement Jump Inter-Limb Asymmetries in Collegiate Basketball Players." Sports 7, no. 5: 103.
The purpose of the present investigation was to evaluate differences in Reactive Strength Index Modified (RSIMod) and Flight Time to Contraction Time Ratio (FT:CT) during the countermovement jump (CMJ) performed without the arm swing (CMJNAS) compared to the CMJ with the arm swing (CMJAS), while exploring the relationship within each variable between jump protocols. A secondary purpose sought to explore the relationship between RSIMod and FT:CT during both jump protocols. Twenty-two collegiate basketball players performed both three CMJNAS and three CMJAS on a force plate, during two separate testing sessions. RSIMod was calculated by the flight-time (RSIModFT) and impulse-momentum methods (RSIModIMP). CMJ variables were significantly greater during the CMJAS compared to CMJNAS (p < 0.001). There were large to very large correlations within each variable between the CMJAS and CMJNAS. There were significant positive correlations among RSIModFT, RSIModIMP, and FT:CT during both the CMJAS (r ≥ 0.864, p < 0.001) and CMJNAS (r ≥ 0.960, p < 0.001). These findings identify an increase in RSIMod or FT:CT during the CMJAS, that may provide independent information from the CMJNAS. In addition, either RSIMod or FT:CT may be utilized to monitor changes in performance, but simultaneous inclusion may be unnecessary.
Aaron Heishman; Brady Brown; Bryce Daub; Ryan Miller; Eduardo Freitas; Michael Bemben. The Influence of Countermovement Jump Protocol on Reactive Strength Index Modified and Flight Time: Contraction Time in Collegiate Basketball Players. Sports 2019, 7, 37 .
AMA StyleAaron Heishman, Brady Brown, Bryce Daub, Ryan Miller, Eduardo Freitas, Michael Bemben. The Influence of Countermovement Jump Protocol on Reactive Strength Index Modified and Flight Time: Contraction Time in Collegiate Basketball Players. Sports. 2019; 7 (2):37.
Chicago/Turabian StyleAaron Heishman; Brady Brown; Bryce Daub; Ryan Miller; Eduardo Freitas; Michael Bemben. 2019. "The Influence of Countermovement Jump Protocol on Reactive Strength Index Modified and Flight Time: Contraction Time in Collegiate Basketball Players." Sports 7, no. 2: 37.
Vitamin D deficiency/insufficiency has been primarily associated with skeletal disorders, however, since vitamin D receptors are found on multiple types of cells, there is also a link to increased chronic disease risk and all-cause mortality. The aim of this study was to examine whether deficient/insufficient vitamin D levels are associated with risk factors of chronic diseases and cognitive dysfunction in 50 to 70 year old adults. Participants completed the health status, three-day dietary record and vitamin D food frequency, sun exposure, and international physical activity questionnaires. Cognitive function of the participants was assessed using the Automated Neuropsychological Assessment Metrics while body composition (percent body fat, android/gynoid ratio) was assessed using Dual Energy X-ray Absorptiometry. Applanation tonometry was used to obtain pressure wave forms at the radial artery to examine arterial stiffness and central pressures. A fasting blood draw was taken to measure vitamin D, blood lipid and glucose levels. Fifty percent of the participants (36/72) were vitamin D deficient/insufficient. Individuals in the low physical activity (PA) group had lower serum vitamin D concentration compared to those in the high PA group (p = 0.04). Moreover, serum vitamin D levels were negatively related to risk factors of chronic diseases; blood glucose (r = −0.38; p = 0.01), triglycerides (r = −0.27; p = 0.02), and android/gynoid ratio (r = −0.32; p = 0.01). Deficient/insufficient vitamin D levels are linked to the risk factors of chronic diseases in men and women aged 50 to 70 years.
Japneet Kaur; Steven L. Ferguson; Eduardo Freitas; Ryan Miller; Debra Bemben; Allen Knehans; Michael Bemben. Association of Vitamin D Status with Chronic Disease Risk Factors and Cognitive Dysfunction in 50–70 Year Old Adults. Nutrients 2019, 11, 141 .
AMA StyleJapneet Kaur, Steven L. Ferguson, Eduardo Freitas, Ryan Miller, Debra Bemben, Allen Knehans, Michael Bemben. Association of Vitamin D Status with Chronic Disease Risk Factors and Cognitive Dysfunction in 50–70 Year Old Adults. Nutrients. 2019; 11 (1):141.
Chicago/Turabian StyleJapneet Kaur; Steven L. Ferguson; Eduardo Freitas; Ryan Miller; Debra Bemben; Allen Knehans; Michael Bemben. 2019. "Association of Vitamin D Status with Chronic Disease Risk Factors and Cognitive Dysfunction in 50–70 Year Old Adults." Nutrients 11, no. 1: 141.
The aim of this study was to determine if bone-specific physical activity questionnaire (BPAQ) scores were positively related to bone health in healthy young and middle-aged premenopausal women. The total BPAQ was a stronger predictor of bone strength and bone mineral density of hip in young women as compared to middle-aged premenopausal women. The purpose of this study was to determine whether the BPAQ scores were predictive indices of volumetric BMD (vBMD), bone strength, and bone geometry in young and middle-aged premenopausal women. Healthy young (n = 60) and middle-aged premenopausal women (n = 54) between the ages of 18 and 50 years were recruited for this study. Areal bone mineral density (aBMD) of lumbar spine and dual proximal femur (FN; femoral neck) was measured using DXA. We assessed vBMD of the tibia 4%, 38%, and 66% by peripheral quantitative computed tomography (pQCT). The BPAQ was used to obtain a comprehensive account of lifetime physical activity related to bone health. Pearson’s correlation tests showed positive correlations between total BPAQ and aBMD of the right FN (r = 0.313, p = 0.015) and the left FN (r = 0.307, p = 0.017) in young women while not found in middle-aged premenopausal women (p > 0.05). A positive relationship was only observed between total BPAQ and tibia 38% vBMD in middle-aged premenopausal women (r = 0.283, p = 0.038). All bone geometry variables were associated with total BPAQ (r = 0.280–0.422, p = 0.03–0.001) in young women. The Strength-Strain Index of tibia 38% (r = 0.350, p = 0.006) and 66% (r = 0.406, p = 0.001) was associated with total BPAQ in young women. In both young and middle-aged premenopausal women, when age, bone-free lean body mass (BFLBM), and total BPAQ were included in a stepwise multiple linear regression analysis, BFLBM was a significant predictor of all aBMD variables, accounting for 7–25.7% (p = 0.043–0.001). The total BPAQ score-derived physical activity was more predictive of positive bone characteristics in young women than in middle-aged premenopausal women.
Sojung Kim; Breanne Baker; Pragya Sharma-Ghimire; Debra A. Bemben; Michael G. Bemben. Association between bone-specific physical activity scores and pQCT-derived measures of bone strength and geometry in healthy young and middle-aged premenopausal women. Archives of Osteoporosis 2018, 13, 1 -9.
AMA StyleSojung Kim, Breanne Baker, Pragya Sharma-Ghimire, Debra A. Bemben, Michael G. Bemben. Association between bone-specific physical activity scores and pQCT-derived measures of bone strength and geometry in healthy young and middle-aged premenopausal women. Archives of Osteoporosis. 2018; 13 (1):1-9.
Chicago/Turabian StyleSojung Kim; Breanne Baker; Pragya Sharma-Ghimire; Debra A. Bemben; Michael G. Bemben. 2018. "Association between bone-specific physical activity scores and pQCT-derived measures of bone strength and geometry in healthy young and middle-aged premenopausal women." Archives of Osteoporosis 13, no. 1: 1-9.
It has been reported that hypertrophy gains is greater in upper body compared to lower body, however, there is no consensus that muscular strength gains are greater in upper body than in lower body. Therefore, the aim of the present study was to compare the strength gains between knee extensors and elbow flexors in response to similar resistance training regimens. Fifty five untrained young women (age: 21.6 ± 2.9 years, weight: 58.3 ± 9.0 kg and height: 163.6 ± 7.5 cm (Mean±SD)) participated in the study as volunteers. Resistance training was performed twice a week for 10 weeks. All subjects performed three sets of 8-12 maximum repetitions for leg press, knee flexion, lat pull down and bench press exercises. Unilateral knee extensors and elbow flexors peak torque (PT) were measured before and after the training period by performing two sets of four repetitions at 60°s -1 , on an isokinetic dynamometer. There were significant increases in PT for both elbow flexors (11.74% [8.0, 17.7], p< 0.05) and knee extensors (11.45% [9.2, 15.3], p< 0.05) with no differences between muscle groups p> 0.05). However, there was no correlation between gains in knee extensors and elbow flexors PT. The analysis of knee extensors PT lead to the formation of two clusters groups: 1) High responders (n=10): 28.29 ± 8.74% and 2) Low-responders (n=37): 7.94 ± 5.95%. Both groups had significant increases in knee extensors PT, however, increases in the high responders were higher than in low responders (p< 0.05).These results suggest that upper- and lower body muscles present similar strength gains after similar resistance training regimens in untrained young women, although individual muscle response may vary in upper and lower body muscles. Keywords: Knee extensors, Elbow flexors, Peak torque
Paulo Gentil; João B. Ferreira-Júnior; Michael G. Bemben; Diogo V. Ferreira; Martim Bottaro. The Effects of Resistance Training on Lower and Upper Body Strength Gains in Young Women. International Journal of Kinesiology and Sports Science 2015, 3, 18 -23.
AMA StylePaulo Gentil, João B. Ferreira-Júnior, Michael G. Bemben, Diogo V. Ferreira, Martim Bottaro. The Effects of Resistance Training on Lower and Upper Body Strength Gains in Young Women. International Journal of Kinesiology and Sports Science. 2015; 3 (3):18-23.
Chicago/Turabian StylePaulo Gentil; João B. Ferreira-Júnior; Michael G. Bemben; Diogo V. Ferreira; Martim Bottaro. 2015. "The Effects of Resistance Training on Lower and Upper Body Strength Gains in Young Women." International Journal of Kinesiology and Sports Science 3, no. 3: 18-23.
Resistance training is recommended for all adults of both sexes. The arterial stiffness and limb blood flow responses to resistance training in young and older women have not been well-studied. The purpose of this study was to examine arterial stiffness and blood flow adaptations to high-intensity resistance exercise training in young and older women. Young (aged 18-25) and older (aged 50-64) women performed full-body high-intensity resistance exercise three times per week for eight weeks. The following measurements were performed twice prior to training and once following training: carotid to femoral and femoral to tibialis posterior pulse wave velocity (PWV), blood pressure, heart rate, resting forearm blood flow and forearm reactive hyperemia. Data was analyzed by ANOVAs with alpha set at 0.05. Correlations were also examined between changes in arterial stiffness and baseline arterial stiffness values. Older subjects had higher carotid-femoral PWV than younger subjects. No significant effects were found for femoral-tibialis posterior PWV or for resting forearm blood flow. Changes in carotid-femoral and femoral-tibialis posterior PWV correlated significantly with their respective baseline values. Older subjects increased peak forearm blood flow while young subjects showed no change. Total hyperemia increased significantly in both groups. In conclusion, in both young and older women, eight weeks of high-intensity resistance training appeared to improve microvascular forearm function while not changing carotid-femoral or femoral-tibialis posterior arterial stiffness. However, a large degree of individual variation was found and arterial stiffness adaptations appeared positively related to the initial stiffness values.
Lindy M. Rossow; Christopher A. Fahs; Robert S. Thiebaud; Jeremy P. Loenneke; Daeyeol Kim; James G. Mouser; Erin A. Shore; Travis W. Beck; Debra A. Bemben; Michael G. Bemben. Arterial stiffness and blood flow adaptations following eight weeks of resistance exercise training in young and older women. Experimental Gerontology 2014, 53, 48 -56.
AMA StyleLindy M. Rossow, Christopher A. Fahs, Robert S. Thiebaud, Jeremy P. Loenneke, Daeyeol Kim, James G. Mouser, Erin A. Shore, Travis W. Beck, Debra A. Bemben, Michael G. Bemben. Arterial stiffness and blood flow adaptations following eight weeks of resistance exercise training in young and older women. Experimental Gerontology. 2014; 53 ():48-56.
Chicago/Turabian StyleLindy M. Rossow; Christopher A. Fahs; Robert S. Thiebaud; Jeremy P. Loenneke; Daeyeol Kim; James G. Mouser; Erin A. Shore; Travis W. Beck; Debra A. Bemben; Michael G. Bemben. 2014. "Arterial stiffness and blood flow adaptations following eight weeks of resistance exercise training in young and older women." Experimental Gerontology 53, no. : 48-56.
To examine the effects of low-load knee extensor training to fatigue with and without blood flow restriction (BFR) on calf vascular conductance, calf venous compliance, and peripheral arterial stiffness in middle-aged individuals.
Christopher A. Fahs; Lindy M. Rossow; Robert S. Thiebaud; Jeremy P. Loenneke; Daeyeol Kim; Takashi Abe; Travis W. Beck; Daniel L. Feeback; Debra A. Bemben; Michael G. Bemben. Vascular adaptations to low-load resistance training with and without blood flow restriction. Graefe's Archive for Clinical and Experimental Ophthalmology 2013, 114, 715 -724.
AMA StyleChristopher A. Fahs, Lindy M. Rossow, Robert S. Thiebaud, Jeremy P. Loenneke, Daeyeol Kim, Takashi Abe, Travis W. Beck, Daniel L. Feeback, Debra A. Bemben, Michael G. Bemben. Vascular adaptations to low-load resistance training with and without blood flow restriction. Graefe's Archive for Clinical and Experimental Ophthalmology. 2013; 114 (4):715-724.
Chicago/Turabian StyleChristopher A. Fahs; Lindy M. Rossow; Robert S. Thiebaud; Jeremy P. Loenneke; Daeyeol Kim; Takashi Abe; Travis W. Beck; Daniel L. Feeback; Debra A. Bemben; Michael G. Bemben. 2013. "Vascular adaptations to low-load resistance training with and without blood flow restriction." Graefe's Archive for Clinical and Experimental Ophthalmology 114, no. 4: 715-724.
Xin Ye; J P Loenneke; C A Fahs; L M Rossow; R S Thiebaud; D Kim; M G Bemben; T Abe. Relationship between lifting performance and skeletal muscle mass in elite powerlifters. The Journal of sports medicine and physical fitness 2013, 53, 1 .
AMA StyleXin Ye, J P Loenneke, C A Fahs, L M Rossow, R S Thiebaud, D Kim, M G Bemben, T Abe. Relationship between lifting performance and skeletal muscle mass in elite powerlifters. The Journal of sports medicine and physical fitness. 2013; 53 (4):1.
Chicago/Turabian StyleXin Ye; J P Loenneke; C A Fahs; L M Rossow; R S Thiebaud; D Kim; M G Bemben; T Abe. 2013. "Relationship between lifting performance and skeletal muscle mass in elite powerlifters." The Journal of sports medicine and physical fitness 53, no. 4: 1.
Blood flow restriction pressure recommendations: a tale of two cuffs
Jeremy P. Loenneke; Christopher A. Fahs; Lindy M. Rossow; Robert S. Thiebaud; Kevin T. Mattocks; Takashi Abe; Michael G. Bemben. Blood flow restriction pressure recommendations: a tale of two cuffs. Frontiers in Physiology 2013, 4, 249 .
AMA StyleJeremy P. Loenneke, Christopher A. Fahs, Lindy M. Rossow, Robert S. Thiebaud, Kevin T. Mattocks, Takashi Abe, Michael G. Bemben. Blood flow restriction pressure recommendations: a tale of two cuffs. Frontiers in Physiology. 2013; 4 ():249.
Chicago/Turabian StyleJeremy P. Loenneke; Christopher A. Fahs; Lindy M. Rossow; Robert S. Thiebaud; Kevin T. Mattocks; Takashi Abe; Michael G. Bemben. 2013. "Blood flow restriction pressure recommendations: a tale of two cuffs." Frontiers in Physiology 4, no. : 249.
Aging defies an easy definition, at least in biological terms, since not all organ systems age in the same way or at the same rate or extent in any individual in a given species. However, a few...
Dieter Böning; Michael I. Lindinger; Damian M. Bailey; Istvan Berczi; Kameljit Kalsi; José González-Alonso; David J. Dyck; Lindsay E. Robinson; David C. Wright; James R. Docherty; Antonios Matsakas; Ketan Patel; Alan R. Barker; Neil Armstrong; Jeremy M. Sheppard; Tim J. Gabbett; Hirofumi Tanaka; Michael G Bemben; Scott K. Lynn; Guillermo J. Noffal; David M. Lindsay; Anthony A. Vandervoort; Gregory A. Hand; G. William Lyerly; Robert S. Mazzeo; Jared M. Dickinson; Blake B. Rasmussen; Stanley Andrisse; Jonathan S. Fisher; Fred Hartgens; James R. McDonald; L. Bruce Gladden; Omri Inbar; Karlman Wasserman; Thomas Gustafsson; Eric Rullman; Anna Strömberg; Amie J. Dirks-Naylor; Ralf Kinscherf; David L. Scott; André Moreira; Luís Delgado; Richard B. Kreider; Y. Peter Jung; Wilfried Kindermann; Mary Jane De Souza; Rebecca J. Toombs. Aging, Adaptations to Training. Encyclopedia of Exercise Medicine in Health and Disease 2012, 43 -46.
AMA StyleDieter Böning, Michael I. Lindinger, Damian M. Bailey, Istvan Berczi, Kameljit Kalsi, José González-Alonso, David J. Dyck, Lindsay E. Robinson, David C. Wright, James R. Docherty, Antonios Matsakas, Ketan Patel, Alan R. Barker, Neil Armstrong, Jeremy M. Sheppard, Tim J. Gabbett, Hirofumi Tanaka, Michael G Bemben, Scott K. Lynn, Guillermo J. Noffal, David M. Lindsay, Anthony A. Vandervoort, Gregory A. Hand, G. William Lyerly, Robert S. Mazzeo, Jared M. Dickinson, Blake B. Rasmussen, Stanley Andrisse, Jonathan S. Fisher, Fred Hartgens, James R. McDonald, L. Bruce Gladden, Omri Inbar, Karlman Wasserman, Thomas Gustafsson, Eric Rullman, Anna Strömberg, Amie J. Dirks-Naylor, Ralf Kinscherf, David L. Scott, André Moreira, Luís Delgado, Richard B. Kreider, Y. Peter Jung, Wilfried Kindermann, Mary Jane De Souza, Rebecca J. Toombs. Aging, Adaptations to Training. Encyclopedia of Exercise Medicine in Health and Disease. 2012; ():43-46.
Chicago/Turabian StyleDieter Böning; Michael I. Lindinger; Damian M. Bailey; Istvan Berczi; Kameljit Kalsi; José González-Alonso; David J. Dyck; Lindsay E. Robinson; David C. Wright; James R. Docherty; Antonios Matsakas; Ketan Patel; Alan R. Barker; Neil Armstrong; Jeremy M. Sheppard; Tim J. Gabbett; Hirofumi Tanaka; Michael G Bemben; Scott K. Lynn; Guillermo J. Noffal; David M. Lindsay; Anthony A. Vandervoort; Gregory A. Hand; G. William Lyerly; Robert S. Mazzeo; Jared M. Dickinson; Blake B. Rasmussen; Stanley Andrisse; Jonathan S. Fisher; Fred Hartgens; James R. McDonald; L. Bruce Gladden; Omri Inbar; Karlman Wasserman; Thomas Gustafsson; Eric Rullman; Anna Strömberg; Amie J. Dirks-Naylor; Ralf Kinscherf; David L. Scott; André Moreira; Luís Delgado; Richard B. Kreider; Y. Peter Jung; Wilfried Kindermann; Mary Jane De Souza; Rebecca J. Toombs. 2012. "Aging, Adaptations to Training." Encyclopedia of Exercise Medicine in Health and Disease , no. : 43-46.
Blood Flow Restriction: How Does It Work?
Jeremy P. Loenneke; Takashi Eabe; Jacob M. Wilson; Carlos Eugrinowitsch; Michael G. Bemben. Blood Flow Restriction: How Does It Work? Frontiers in Physiology 2012, 3, 392 .
AMA StyleJeremy P. Loenneke, Takashi Eabe, Jacob M. Wilson, Carlos Eugrinowitsch, Michael G. Bemben. Blood Flow Restriction: How Does It Work? Frontiers in Physiology. 2012; 3 ():392.
Chicago/Turabian StyleJeremy P. Loenneke; Takashi Eabe; Jacob M. Wilson; Carlos Eugrinowitsch; Michael G. Bemben. 2012. "Blood Flow Restriction: How Does It Work?" Frontiers in Physiology 3, no. : 392.
Kyle A. Sherk; Dae-Yeol Kim; Harshvardhan Harshvardhan; Takashi Abe; Yoshiaki Sato; Michael G. Bemben. Strength and Muscle Activation Changes Following Three Weeks of Resistance Training with Blood Flow Restriction. Medicine & Science in Sports & Exercise 2010, 42, 740 .
AMA StyleKyle A. Sherk, Dae-Yeol Kim, Harshvardhan Harshvardhan, Takashi Abe, Yoshiaki Sato, Michael G. Bemben. Strength and Muscle Activation Changes Following Three Weeks of Resistance Training with Blood Flow Restriction. Medicine & Science in Sports & Exercise. 2010; 42 (5):740.
Chicago/Turabian StyleKyle A. Sherk; Dae-Yeol Kim; Harshvardhan Harshvardhan; Takashi Abe; Yoshiaki Sato; Michael G. Bemben. 2010. "Strength and Muscle Activation Changes Following Three Weeks of Resistance Training with Blood Flow Restriction." Medicine & Science in Sports & Exercise 42, no. 5: 740.
V D Sherk; M Karabulut; M G Bemben; D A Bemben. Age comparisons of bone density and geometry in men. Journal of musculoskeletal & neuronal interactions 2009, 9, 1 .
AMA StyleV D Sherk, M Karabulut, M G Bemben, D A Bemben. Age comparisons of bone density and geometry in men. Journal of musculoskeletal & neuronal interactions. 2009; 9 (4):1.
Chicago/Turabian StyleV D Sherk; M Karabulut; M G Bemben; D A Bemben. 2009. "Age comparisons of bone density and geometry in men." Journal of musculoskeletal & neuronal interactions 9, no. 4: 1.
Total body water (TBW) estimations have been used to estimate body composition, particularly fat-free mass, to aid in nutritional interventions, and to monitor hydration status. In the past, bioimpedance spectroscopy (BIS) devices have been used to estimate TBW. Previous investigations have examined the validity of the XiTRON 4000B (XiTRON Technologies) BIS device for estimating TBW. Recently, a new BIS device (Imp™ SFB7) has become available, claiming greater precision when estimating TBW. The Imp™ SFB7 (SFB7) is based on similar BIS principles, while offering increased portability and a greater range of frequencies when compared to older devices, such as the XiTRON 4000B (4000B). The purpose of this study was to examine the validity of the SFB7 for estimating total body water in healthy college-age men and women compared to the 4000B and deuterium oxide (D2O).
Jordan R Moon; Sarah E Tobkin; Michael D Roberts; Vincent J Dalbo; Chad M Kerksick; Michael G Bemben; Joel T Cramer; Jeffrey R Stout. Total body water estimations in healthy men and women using bioimpedance spectroscopy: a deuterium oxide comparison. Nutrition & Metabolism 2008, 5, 7 -7.
AMA StyleJordan R Moon, Sarah E Tobkin, Michael D Roberts, Vincent J Dalbo, Chad M Kerksick, Michael G Bemben, Joel T Cramer, Jeffrey R Stout. Total body water estimations in healthy men and women using bioimpedance spectroscopy: a deuterium oxide comparison. Nutrition & Metabolism. 2008; 5 (1):7-7.
Chicago/Turabian StyleJordan R Moon; Sarah E Tobkin; Michael D Roberts; Vincent J Dalbo; Chad M Kerksick; Michael G Bemben; Joel T Cramer; Jeffrey R Stout. 2008. "Total body water estimations in healthy men and women using bioimpedance spectroscopy: a deuterium oxide comparison." Nutrition & Metabolism 5, no. 1: 7-7.
The purpose of this study was to compare the characteristics of skeletal muscle (SM) mass and internal organ (liver and kidney) mass in resistance and/or high intensity trained collegiate athletes with nonathletes, and to examine the relationships between fat-free mass (FFM) and its major components of SM, liver mass, and kidney mass. Fifteen athletes and seventeen nonathletes volunteered for the study. FFM was measured by two-compartment densitometry. Contiguous magnetic resonance imaging was used to obtain images from the first cervical vertebrae to the ankle joint (no inter-slice gap) for each subject, and SM, liver and kidney cross-sectional areas and organ-tissue volumes were determined. Organ-tissue volumes (cm3) were converted to mass (kg) by multiplying the volumes by the assumed constant density of the tissues. On average, athletes had greater FFM (69.1 kg) than the nonathletes (52.6 kg). SM, liver, and kidney masses in athletes (33.0 kg, 1.84 kg and 0.39 kg, respectively) were higher compared with nonathletes (23.5 kg, 1.39 kg and 0.31 kg, respectively). When the various determinants of FFM were expressed as ratios, it was determined that the ratio of SM mass to FFM was higher in athletes (47.7 %) than nonathletes (44.7 %), and the ratios of liver and kidney to FFM were similar for the two groups (2.6 % and 0.6 %, respectively, for athletes; and 2.7 % and 0.6 %, respectively, for nonathletes). A strong correlation between FFM and SM mass was observed in athletes and nonathletes and the slopes of these regression lines were almost identical and parallel. FFM was also significantly correlated with liver and kidney mass for both athletes and nonathletes. This study suggests that SM, liver, and kidney masses are increased by FFM accumulation in resistance and/or high intensity trained athletes.
T. Midorikawa; O. Sekiguchi; M. D. Beekley; M. G. Bemben; T. Abe. A Comparison of Organ-Tissue Level Body Composition between College-Age Male Athletes and Nonathletes. International Journal of Sports Medicine 2006, 28, 100 -105.
AMA StyleT. Midorikawa, O. Sekiguchi, M. D. Beekley, M. G. Bemben, T. Abe. A Comparison of Organ-Tissue Level Body Composition between College-Age Male Athletes and Nonathletes. International Journal of Sports Medicine. 2006; 28 (2):100-105.
Chicago/Turabian StyleT. Midorikawa; O. Sekiguchi; M. D. Beekley; M. G. Bemben; T. Abe. 2006. "A Comparison of Organ-Tissue Level Body Composition between College-Age Male Athletes and Nonathletes." International Journal of Sports Medicine 28, no. 2: 100-105.
Creatine monohydrate (Cr) is perhaps one of the most widely used supplements taken in an attempt to improve athletic performance. The aim of this review is to update, summarise and evaluate the findings associated with Cr ingestion and sport and exercise performance with the most recent research available. Because of the large volume of scientific literature dealing with Cr supplementation and the recent efforts to delineate sport-specific effects, this paper focuses on research articles that have been published since 1999. Cr is produced endogenously by the liver or ingested from exogenous sources such as meat and fish. Almost all the Cr in the body is located in skeletal muscle in either the free (Cr: ~40%) or phosphorylated (PCr: ~60%) form and represents an average Cr pool of about 120–140g for an average 70kg person. It is hypothesised that Cr can act though a number of possible mechanisms as a potential ergogenic aid but it appears to be most effective for activities that involve repeated short bouts of high-intensity physical activity. Additionally, investigators have studied a number of different Cr loading programmes; the most common programme involves an initial loading phase of 20 g/day for 5–7 days, followed by a maintenance phase of 3–5 g/day for differing periods of time (1 week to 6 months). When maximal force or strength (dynamic or isotonic contractions) is the outcome measure following Cr ingestion, it generally appears that Cr does significantly impact force production regardless of sport, sex or age. The evidence is much more equivocal when investigating isokinetic force production and little evidence exists to support the use of Cr for isometric muscular performance. There is little benefit from Cr ingestion for the prevention or suppression of muscle damage or soreness following muscular activity. When performance is assessed based on intensity and duration of the exercises, there is contradictory evidence relative to both continuous and intermittent endurance activities. However, activities that involve jumping, sprinting or cycling generally show improved sport performance following Cr ingestion. With these concepts in mind, the focus of this paper is to summarise the effectiveness of Cr on specific performance outcomes rather than on proposed mechanisms of action. The last brief section of this review deals with the potential adverse effects of Cr supplementation. There appears to be no strong scientific evidence to support any adverse effects but it should be noted that there have been no studies to date that address the issue of long-term Cr usage.
Michael G. Bemben; Hugh S. Lamont. Creatine Supplementation and Exercise Performance. Sports Medicine 2005, 35, 107 -125.
AMA StyleMichael G. Bemben, Hugh S. Lamont. Creatine Supplementation and Exercise Performance. Sports Medicine. 2005; 35 (2):107-125.
Chicago/Turabian StyleMichael G. Bemben; Hugh S. Lamont. 2005. "Creatine Supplementation and Exercise Performance." Sports Medicine 35, no. 2: 107-125.
M G. Bemben; D A. Bemben. DOSE-EFFECT RESPONSE OF 80 WEEKS OF RESISTANCE TRAINING ON MUSCLE STRENGTH AND MUSCLE MASS OF OLDER MEN AND WOMEN. Medicine & Science in Sports & Exercise 2003, 35, S171 .
AMA StyleM G. Bemben, D A. Bemben. DOSE-EFFECT RESPONSE OF 80 WEEKS OF RESISTANCE TRAINING ON MUSCLE STRENGTH AND MUSCLE MASS OF OLDER MEN AND WOMEN. Medicine & Science in Sports & Exercise. 2003; 35 (Supplement):S171.
Chicago/Turabian StyleM G. Bemben; D A. Bemben. 2003. "DOSE-EFFECT RESPONSE OF 80 WEEKS OF RESISTANCE TRAINING ON MUSCLE STRENGTH AND MUSCLE MASS OF OLDER MEN AND WOMEN." Medicine & Science in Sports & Exercise 35, no. Supplement: S171.