Michaela M Keener

Ms. Michaela M Keener

orcid

Research Focus & Metrics

Academic Career Length

5Years (2022-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 March 2023 in Journal of Physical Activity and Health
Verified
Journal Article
Closed access
PDF file
MKMichaela M Keener
Michaela M Keener
KTKimberly Tumlin
Kimberly Tumlin
DDDeirdre Dlugonski
Deirdre Dlugonski
Background: Over 75% of American adults are not meeting aerobic and muscular physical activity recommendations, with the majority being females. Equestrian activities are a potential avenue to increase physical activity, especially in females who account for approximately 90% of sport participants. This study describes perceptions of equestrian activities and establishes the patterns of self-reported equestrian, barn work, and nonequestrian physical activity engagement to understand participation in activities that may sustain physical activity across the lifespan. Methods: American equestrians (n = 2551) completed an anonymous online survey with questions about perceptions and benefits of equestrian activities, demographics, and engagement in equestrian activities, barn work, and nonequestrian activities. Results: There were 2039 completed responses, (95.6% female), with representation from all regions of the United States. Professionals (20.6%), amateurs (39.1%), and recreational (40.3%) comprised participation status. Significantly fewer recreational participants perceived equestrian as physical activity and as a sport than amateurs (P < .05) and professionals (P < .05). Engagement in equestrian and barn work physical activity was significantly higher in professionals (P < .0001), followed by amateurs (P < .0001), with the lowest in recreational equestrians (P = .001). Professional and amateur equestrians engaged in significantly more nonequestrian physical activity than recreational participants (P < .05). Conclusions: Equestrian physical activity engagement is dependent on the status of participation. Equestrian, barn work, and nonequestrian physical activity do meet physical activity aerobic and muscular recommendations and should be encouraged as a physical activity for females across the lifespan.

30 October 2023 in Comparative Exercise Physiology
Verified
Journal Article
Open access
PDF file
MKMichaela M Keener
Michaela M Keener
KTKimberly Tumlin
Kimberly Tumlin
The use of trauma databases for epidemiological study of equestrian injuries is well established. However, such databases fail to capture minor injuries or injuries when medical attention is not sought. Additionally, concerns about chronic pain in equestrians have only been explored in small samples. The current study is the first nationwide survey of American equestrians 12 years and older participating in all equestrian disciplines. This study aimed to evaluate the patterns of self-reported acute injuries, behaviours of seeking medical attention for acute injuries, and chronic pain. A convenience sample of 2,573 American equestrians completed an anonymous online survey with questions on acute injury anatomical region, type, and if they sought medical attention. Additional questions identified frequency and location of chronic pain. In total, 2,049 survey responses were complete, with 96% female and representation from all regions of the United States. Participation status (PS) was categorised as professionals (19%), amateurs (43%), and recreational (38%). PS was associated with acute injury and chronic pain frequency. Only 3.9% had never experienced an acute injury from equestrian activity. Of all injuries, foot injuries were most reported (13% of all injuries; 52% of participants) with only 39% seeking medical attention. Professionals had higher odds of experiencing acute injuries in most anatomical regions. 42% indicated they had encountered a concussion; of those, 71% sought medical assistance due to a suspected concussion. Chronic back pain frequency was reported at 27.5%. This study is the first to evaluate self-reported injury in a large convenience sample of American equestrians. The current study found a higher rate of lower extremity injuries in equestrians than previously captured in trauma databases. Prior concussion and acute injury increased the odds of individuals experiencing regional chronic pain, suggesting that future studies and interventions should focus on improving preventative and rehabilitative care. The use of trauma databases for epidemiological study of equestrian injuries is well established. However, such databases fail to capture minor injuries or injuries when medical attention is not sought. Additionally, concerns about chronic pain in equestrians have only been explored in small samples. The current study is the first nationwide survey of American equestrians 12 years and older participating in all equestrian disciplines. This study aimed to evaluate the patterns of self-reported acute injuries, behaviours of seeking medical attention for acute injuries, and chronic pain. A convenience sample of 2,573 American equestrians completed an anonymous online survey with questions on acute injury anatomical region, type, and if they sought medical attention. Additional questions identified frequency and location of chronic pain. In total, 2,049 survey responses were complete, with 96% female and representation from all regions of the United States. Participation status (PS) was categorised as professionals (19%), amateurs (43%), and recreational (38%). PS was associated with acute injury and chronic pain frequency. Only 3.9% had never experienced an acute injury from equestrian activity. Of all injuries, foot injuries were most reported (13% of all injuries; 52% of participants) with only 39% seeking medical attention. Professionals had higher odds of experiencing acute injuries in most anatomical regions. 42% indicated they had encountered a concussion; of those, 71% sought medical assistance due to a suspected concussion. Chronic back pain frequency was reported at 27.5%. This study is the first to evaluate self-reported injury in a large convenience sample of American equestrians. The current study found a higher rate of lower extremity injuries in equestrians than previously captured in trauma databases. Prior concussion and acute injury increased the odds of individuals experiencing regional chronic pain, suggesting that future studies and interventions should focus on improving preventative and rehabilitative care. The use of trauma databases for epidemiological study of equestrian injuries is well established. However, such databases fail to capture minor injuries or injuries when medical attention is not sought. Additionally, concerns about chronic pain in equestrians have only been explored in small samples. The current study is the first nationwide survey of American equestrians 12 years and older participating in all equestrian disciplines. This study aimed to evaluate the patterns of self-reported acute injuries, behaviours of seeking medical attention for acute injuries, and chronic pain. A convenience sample of 2,573 American equestrians completed an anonymous online survey with questions on acute injury anatomical region, type, and if they sought medical attention. Additional questions identified frequency and location of chronic pain. In total, 2,049 survey responses were complete, with 96% female and representation from all regions of the United States. Participation status (PS) was categorised as professionals (19%), amateurs (43%), and recreational (38%). PS was associated with acute injury and chronic pain frequency. Only 3.9% had never experienced an acute injury from equestrian activity. Of all injuries, foot injuries were most reported (13% of all injuries; 52% of participants) with only 39% seeking medical attention. Professionals had higher odds of experiencing acute injuries in most anatomical regions. 42% indicated they had encountered a concussion; of those, 71% sought medical assistance due to a suspected concussion. Chronic back pain frequency was reported at 27.5%. This study is the first to evaluate self-reported injury in a large convenience sample of American equestrians. The current study found a higher rate of lower extremity injuries in equestrians than previously captured in trauma databases. Prior concussion and acute...

16 August 2023 in Animals
Verified
Journal Article
Open access
PDF file
MKMichaela M Keener
Michaela M Keener
KTKimberly Tumlin
Kimberly Tumlin
Equestrian sport has various welfare issues and educational needs. To address these complex interactions, we propose an integrated approach called the Triple-E Model, which focuses on the equine, equestrian, and environmental triad. A literature review of existing models suggests that complexities of these interactions are overlooked, despite the significant impact of equine industries on economics, healthcare, and animal welfare. This paper discusses current models and theories used to evaluate equine–equestrian–environmental interactions and introduces the Triple-E Model to foster multidisciplinary collaboration. Unlike the One Health triad, which focuses on disease emergence, transmission, and zoonosis, the Triple-E Model extends to non-infectious research, such as musculoskeletal injury. It promotes collaborative care and rehabilitation within the equestrian community by engaging multidisciplinary, multi-setting, and multi-sectoral teams. Given the nature of human–animal interaction and welfare considerations, this model fills the gap in understanding human–horse interactions. The paper highlights the limitations of existing models and explains how the Triple-E Model guides and encourages holistic team collaboration in the equestrian community.

16 January 2024 in Comparative Exercise Physiology
Verified
Journal Article
Open access
PDF file
MKMichaela M Keener
Michaela M Keener
KTKimberly Tumlin
Kimberly Tumlin
"Corrigendum on: Self-reported acute injury and chronic pain in American equestrian athletes" published on 16 Jan 2024 by Wageningen Academic.

10 January 2022 in European Review of Aging and Physical Activity
Verified
Journal Article
Open access
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MKMichaela M Keener
Michaela M Keener
KTKimberly I. Tumlin
Kimberly I. Tumlin
NHNicholas R. Heebner
Nicholas R. Heebner
Loss of hand strength is a predictor of mortality in aging populations. Despite reliance on the hands to participate in equestrian driving activity, no existing studies focus on associations of hand strength to athletic performance. Therefore, this study 1) established baseline handgrip of equestrian combined drivers in standing and task-specific positions, 2) determined endurance of task-specific handgrip, 3) compared handgrip strength to normative data, and 4) evaluated associations of handgrip and equestrian-specific variables. There were 51 combined drivers (9 males, 42 females) ages 21–78 who completed a survey, standing handgrip, and grip strength and endurance in a task-specific position. Sixty-three percent of participants were 50 years or older. The dynamometer grip bar was normalized by hand size for standing tests; to duplicate sport-specific tasks, the bar was set to the closest setting. Significances were determined at p < 0.05. Drivers with more than 30 years of experience demonstrated highest summed standing (73.1 ± 5.2 kg) and summed sitting (59.9 ± 6.3 kg) grip strength. Females 60-years and older had greater handgrip endurance (Χ2 = 8.323, df = 2, p = .0156) in non-dominant (left) hands. Males (60%) reported more cold weather fatigue than females. Glove wearing was associated with bilateral endurance balance; a higher proportion of endurance balance between dominant and non-dominant (49% high-high and 29% low-low; Χ2 = 11.047, df = 1, p = .0009) was realized. There were no associations of handgrip and prior injury. Our results have implications in understanding task-specific and normative grip strengths in aging equestrian populations. Bilateral balance in handgrip strength and endurance is important particularly in maintaining strength in non-dominant hands over time. Equestrian driving sport promotes greater endurance in older females. Strength can be improved by participating in combined driving, and engagement in this sport over several years’ benefits hand strength over time. This cohort of equestrian participants provides evidence that participating in hand-specific activities promotes greater strength, which has been previously shown to improve aging outcomes.

23 December 2024 in Journal of Occupational and Environmental Medicine
Verified
Journal Article
Closed access
MKMichaela M Keener
Michaela M Keener
GVGavin C. Bs Vice
Gavin C. Bs Vice
KTKimberly Tumlin
Kimberly Tumlin
NHNicholas R. Heebner
Nicholas R. Heebner
Objective: The study aims to characterize the workday habits of American jockeys and evaluate the relationship between workday habits and fatigue through changes in postural stability (balance) across their workday. Methods: Thirty-seven jockeys participated in prerace and postrace day testing. Jockeys completed questionnaires on workday habits and a 2-minute balance test with triaxial accelerometers on the unstable surface and sacrum. Results: The median caloric intake during their workday was 263.8 kcal. Wilcoxon signed rank tests reported no significant changes in balance across the workday. Statistically significant (P < 0.05) correlations existed between sleep (τ = −0.41) and number of races ridden (τ = 0.37) with balance variables. Conclusions: American jockeys exhibit weight-cycling behaviors, primarily restricted caloric and fluid intake. No changes were evaluated in balance across the workday. Future research should focus on evaluating other fatigue mechanisms involving abdominal muscle fatigue and cognitive fatigue.