Lloyd Leach

Prof. Lloyd Leach

orcid

Research Focus & Metrics

Academic Career Length

12Years (2015-Present)

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

Representative Publications

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CJChante' Johannes
Chante' Johannes
NRNicolette Roman
Nicolette Roman
SOSunday Onagbiye
Sunday Onagbiye
STSimone Titus
Simone Titus
LLLloyd Leach
Lloyd Leach
Significant numbers of undergraduate university students are not meeting the physical activity guidelines recommended by the World Health Organisation. These guidelines suggest that university students should aim for 150–300 min of moderate or 75–150 min of vigorous physical activity. Strategic interventions need to be implemented to address this global public health concern. The aim of this study was to review the strategies and best practices to enhance the physical activity levels of undergraduate university students. Utilising the PRISMA guidelines, electronic databases—PubMed, Science Direct, Academic Search Complete, ERIC, Web of Science, CINAHL, SAGE, and SPORTDiscus—were searched between September 2022 and February 2023 using terms and synonyms related to physical activity, strategies, best practices, and undergraduate university students. Studies were critically assessed for their quality using an adapted version of the CASP and RE-AIM frameworks. Eleven articles met the inclusion criteria for the review. The studies reported the use of social media platforms, mobile phone applications, web-based technology, online text messages, in-person classes, and an “exergame” as methods to increase engagement in physical activity. Findings from this review indicated that validated questionnaires emerged as the predominant measurement tool. Furthermore, the frequent use of social network sites served as a best practice for implementing and promoting physical activity interventions. It is recommended that universities promote health-enhancing physical activities based on current trends and strategies, such as technology-based interventions and the use of social media, that are relevant to contemporary university students.

19 September 2022 in Journal of Environmental and Public Health
Verified
Journal Article
Open access
PDF file
JRJaron Ras
Jaron Ras
DSDenise L Smith
Denise L Smith
AKAndre Pascal Kengne
Andre Pascal Kengne
Elpidoforos Soterakis SoteriadesElpidoforos Soterakis Soteriades
Elpidoforos Soterakis Soteriades
LLLloyd Leach
Lloyd Leach
Introduction. Firefighting is a strenuous occupation that requires firefighters to be in peak physical condition. However, many firefighters have risk factors for cardiovascular disease, impaired musculoskeletal health, and are not physically fit for duty, which all negatively impact their occupational performance. Therefore, the aim of this review is to determine the relationship between cardiovascular disease risk factors, musculoskeletal health, physical fitness, and occupational performance in firefighters. Methods. The electronic databases PubMed, SCOPUS, and Web of Science were searched online via the library portal of the University of the Western Cape. Publications and grey literature between the years 2000 to present were used. In total, 2607 articles were identified; after the removal of duplicates 1188 articles were then screened, and were excluded for not meeting initial screening criteria. The remaining 209 full‐text articles were screened based on the inclusion and exclusion criteria, where 163 articles were excluded. Only studies that were quantitative were included. This left 46 articles that were then finally included in the current narrative review. Results. The current literature indicated that significant relationships existed between cardiovascular risk factors, musculoskeletal health, physical fitness, and occupational performance. The results indicated firefighters who were aged, obese, physically inactive, cigarette smokers, and unfit were at the highest risk for cardiovascular and musculoskeletal health complications, and unsatisfactory occupational performance. Musculoskeletal health complications significantly affected occupational performance and work ability and were related to physical fitness of firefighters. Most cardiovascular risk factors were related to physical fitness, and all physical fitness parameters were related to occupational performance in firefighters. Conclusion. The overwhelming evidence in the current review established that physical fitness is related to occupational performance. However, the relationship between cardiovascular risk factors and musculoskeletal health in relation to occupational performance is less clear and still understudied. Significant gaps remain in the literature.

JRJaron Ras
Jaron Ras
AKAndre Pascal Kengne
Andre Pascal Kengne
DSDenise L Smith
Denise L Smith
Elpidoforos Soterakis SoteriadesElpidoforos Soterakis Soteriades
Elpidoforos Soterakis Soteriades
RNRucia Vern-Clare November
Rucia Vern-Clare November
LLLloyd Leach
Lloyd Leach
Background: Firefighting is a strenuous occupation, which necessitates that firefighters stay in good physical condition and maintain adequate cardiovascular and musculoskeletal fitness to perform their duties with minimal health and safety risks. The aim of this review is to determine the effects of cardiovascular disease risk factors, musculoskeletal health, and physical fitness on the occupational performance of firefighters. Methods: PubMed/Medline, SCOPUS, Web of Science, EBSCOHost, and ScienceDirect were searched without time-restriction. The appraisal tool for cross-sectional studies and the Critical Appraisal Skills Programme toolkit were used to conduct the methodological assessment. Data were analyzed using Review Manager 5.3, and MedCalc® statistical software. Results: Age had a moderate effect on occupational performance (Z = 5.15, p < 0.001), whereas gender had a large effect size on occupational performance (Z = 4.24, p < 0.001). A significant moderate negative correlation was found between cardiorespiratory fitness and occupational performance (R = −0.584, p < 0.001). Significant low negative correlations were found between upper body endurance (R = −0.344, p < 0.001), abdominal endurance (R = −0.308, p < 0.001), grip strength (R = −0.421, p < 0.001), upper body strength (R = −0.318, p < 0.001), and lower body strength (R = −0.216, p = 0.020) and occupational performance. Conclusions: Aged firefighters with poor body composition and lower levels of physical fitness performed worse on all occupational performance tasks.

JRJaron Ras
Jaron Ras
AKAndre Pascal Kengne
Andre Pascal Kengne
DSDenise L Smith
Denise L Smith
Elpidoforos Soterakis SoteriadesElpidoforos Soterakis Soteriades
Elpidoforos Soterakis Soteriades
LLLloyd Leach
Lloyd Leach
Approximately 45% of on-duty related mortalities were due to sudden cardiac death, with many of these fatalities related to cardiovascular disease and overexertion, while performing emergency duties. Therefore, the aim of this systematic review was to determine the association between cardiovascular disease risk factors and cardiorespiratory fitness in firefighters. A literature search of PubMed, SCOPUS, Web of Science, Embase, EBSCOHost, and ScienceDirect was conducted; the Rayyan® intelligent systematic review tool was used to screen and select studies for inclusion. The appraisal tool for cross-sectional studies and the Critical Appraisal Skills Programme toolkit were used for methodological assessment of included studies. Data were analyzed using the Review Manager 5.3 and MedCalc® statistical softwares to determine the effects of obesity (Z = 10.29, p < 0.001) and aging (Z = 4.72, p < 0.001) on cardiorespiratory fitness. Furthermore, there was a significant effect for cardiorespiratory fitness level on systolic blood pressure (Z = 5.94, p < 0.001), diastolic blood pressure (Z = 2.45, p < 0.001), total cholesterol levels (Z = 3.80, p < 0.001), low-density lipoprotein cholesterol (Z = 4.44, p < 0.001), triglycerides (Z = 3.76, p < 0.001) and blood glucose concentration (Z = 4.78, p < 0.001). Cardiovascular disease risk factors and cardiorespiratory fitness were significantly and inversely associated in firefighters. Fire service departments should adopt behavioral intervention strategies to maintain optimum cardiovascular disease risk factor profiles and cardiorespiratory fitness among firefighters to ensure their occupational well-being.

14 May 2015 in Adolescent Research Review
Verified
Journal Article
Open access
PDF file
EDEugene Lee Davids
Eugene Lee Davids
NRNicolette Roman
Nicolette Roman
LLLloyd Leach
Lloyd Leach
Decision making is a task that individuals face on a daily basis. The process of making a decision differs from one person to another. The processes involved in making a decision are defined as decision making styles, which can be either adaptive or maladaptive. Children and adolescents’ decision making, however, often is thought to be associated with parenting. This review examines and describes previous studies examining the associations between decision making styles and parenting approaches. It suggests that maladaptive decision making styles are the most prevalent, and that they often are associated with detrimental outcomes for children and adolescents’ development. Maladaptive decision making styles also are associated with negative parenting approaches. The review reveals that western and non-western societies play an important role in shaping these associations; however, it also finds that age and gender do not play a significant role. The review highlights gaps in literature focusing on decision making and parenting, and the continents where little research has examined the associations presented. The review adds to current debates and knowledge on youth development by providing an understanding of decision making styles from an international perspective as well as from the important role that parents play.

JRJaron Ras
Jaron Ras
DSDenise L Smith
Denise L Smith
Elpidoforos Soterakis SoteriadesElpidoforos Soterakis Soteriades
Elpidoforos Soterakis Soteriades
AKAndre Pascal Kengne
Andre Pascal Kengne
LLLloyd Leach
Lloyd Leach
Firefighters perform strenuous work in dangerous and unpredictable environments requiring optimal physical conditioning. The aim of this study was to investigate the association between physical fitness and cardiovascular health (CVH) in firefighters. This cross-sectional study systematically recruited 309 full-time male and female firefighters between the ages of 20 to 65 years in Cape Town, South Africa. Physical fitness was assessed using absolute (abV̇O2max) and relative oxygen consumption (relVO2max), grip and leg strength, push-ups and sit-ups, sit-and-reach for flexibility and lean body mass (LBM). CVH encompassed age, smoking, blood pressure (BP), blood glucose, lipid profile, body mass index, body fat percentage (BF%), and waist circumference. Linear regressions and logistic regressions were applied. Multivariable analysis indicated that relVO2max was associated with systolic BP (p < 0.001), diastolic BP (p < 0.001), non-fasting blood glucose (p < 0.001), and total cholesterol (p = 0.037). Poor CVH index was negatively associated with relV̇O2max (p < 0.001), leg strength (p = 0.019), and push-ups (p = 0.012). Furthermore, age was inversely associated with V̇O2max (p < 0.001), push-up and sit-up capacity (p < 0.001), and sit-and-reach (p < 0.001). BF% was negatively associated with abV̇O2max (p < 0.001), grip and leg strength (p < 0.001), push-ups (p = 0.008), sit-ups (p < 0.001), and LBM (p < 0.001). Cardiorespiratory fitness, muscular strength, and muscular endurance were significantly associated with a better overall CVH profile.