Student-athletes perceived physical and psychological stability is a vital source of enhanced performance and physical activity. The current study, grounded in attribution theory, examines the effect ...of student-athletes' reported mental and physical health on their perceived performance and physical activity. Additionally, a unique construct, perceived physical self-concept, is also accessed as an Intervening mechanism between the study variables. A cross-sectional field survey was undertaken of 279 student-athletes enrolled in several Indonesian universities in the Bali area. Perceived psychological and physical health were found to be positively linked with perceived performance and physical activity. Additionally, these associations were found to be mediated by perceived physical self-concept. Further, future research directions, key policy insights, and theoretical and managerial implications for sports science scholars and policymakers are suggested.
The stress test is key to the clinical evaluation and management of patients with known or potential cardiovascular disease. By measuring the heart's ability to respond to external stress, it can ...provide vital insights into the general physical condition of patients, highlighting abnormalities in blood flow, risk of coronary artery disease, and more. The Pocket Guide to Stress Testing gives cardiology professionals a complete breakdown of this everyday procedure that they can carry with them and consult on the go.
This second edition has been fully revised to reflect the most up-to-date information available on the best approaches to conducting and interpreting various forms of stress test. With chapters spanning topics such as testing guidelines, nuclear imaging techniques, and emergency and aftercare protocols, the clear and practical contents cover all aspects of the subject.
Es sabido que el envejecimiento provoca el deterioro de la condición física y sus componentes. Menores niveles de flexibilidad se asocian a una pérdida de la capacidad funcional, y la participación ...en programas de ejercicio físico supervisado podría mantener o mejorar los niveles de dicha cualidad física. En nuestro estudio, evaluamos la flexibilidad de 53 adultos mayores de 65 años (M=73,74±4,54 años) que participaban en un programa de ejercicio durante, al menos, 6 meses; utilizando los tests back scratch (TBS) y chair sit and reach (TCSAR). Al finalizar el programa, los resultados de flexibilidad resultaron estar dentro de los valores normativos de referencia; estando, en muchas ocasiones, por encima. En conclusión, mantenerse físicamente activo minimiza la pérdida de flexibilidad inherente al proceso de envejecimiento, incluso cuando la actividad física no está directamente dirigida a mejorar esa capacidad. Este hecho podría tener importantes repercusiones sobre la capacidad funcional y la calidad de vida de los adultos mayores.
The aim of the HERITAGE Family Study was to investigate individual differences in response to a standardized endurance exercise program, the role of familial aggregation, and the genetics of response ...levels of cardiorespiratory fitness and cardiovascular disease and diabetes risk factors. Here we summarize the findings and their potential implications for cardiometabolic health and cardiorespiratory fitness. It begins with overviews of background and planning, recruitment, testing and exercise program protocol, quality control measures, and other relevant organizational issues. A summary of findings is then provided on cardiorespiratory fitness, exercise hemodynamics, insulin and glucose metabolism, lipid and lipoprotein profiles, adiposity and abdominal visceral fat, blood levels of steroids and other hormones, markers of oxidative stress, skeletal muscle morphology and metabolic indicators, and resting metabolic rate. These summaries document the extent of the individual differences in response to a standardized and fully monitored endurance exercise program and document the importance of familial aggregation and heritability level for exercise response traits. Findings from genomic markers, muscle gene expression studies, and proteomic and metabolomics explorations are reviewed, along with lessons learned from a bioinformatics-driven analysis pipeline. The new opportunities being pursued in integrative -omics and physiology have extended considerably the expected life of HERITAGE and are being discussed in relation to the original conceptual model of the study.
The field of sports medicine is evolving, accelerated by emerging technologies and changing health care policies. To stay up to speed and ace the Boards, you need a resource that moves at your pace. ...Sanctioned by the American College of Sports Medicine (ACSM), this handy review addresses all areas of the sports medicine subspecialty board examination-with coverage that spans the full spectrum of sports medicine, from medical to skeletal conditions related to the athlete. The editors and authors include orthopedic surgeons, family physicians, pediatricians, internal medicine specialists, physiatrists, certified athletic trainers, physical therapists, psychologists, nutritionists, exercise physiologists and more, ensuring that youll benefit from the broad spectrum of expertise embraced by the specialty. Look inside and explore… Seven convenient sections address general considerations, evaluation of the injured athlete, medical problems, musculoskeletal problems, principles of rehabilitation, sports-specific populations, and special populations. Comprehensive coverage includes all topic areas featured on sports medicine subspecialty board exams. Easy-access bulleted format makes essential facts simple to locate and recall. Tables, figures, and algorithms make complex ideas easy to grasp and retain. PLUS… An online companion resource includes nearly 1,000 board-style practice questions with rationale for correct and incorrect responses-a great way to test your knowledge and improve your exam performance!.
BACKGROUND: An understanding of how motor skill performance levels relate to energy expenditure (EE) is an important, yet relatively unexplored topic that may better inform physical activity ...interventions.
AIM: This study examined the impact of motor competence (MC) on EE during the performance of object control skills in children and young adults.
METHOD: Forty-two children (Mage 8.1 years) and 40 young adults (Mage = 23.4 years) completed sessions of throwing and kicking at varying intensity intervals. Polynomial regressions with response surface analysis were conducted to analyze the impact of process- and product-oriented MC levels on EE.
RESULTS: Moderate positive associations among process-oriented motor competence levels and EE were demonstrated in all trial interval conditions with stronger associations shown for shorter trial intervals.
CONCLUSION: Individuals’ movement quality (process) demonstrated greater associations with EE than performance product (speed), especially with higher intensity skill practice. These results provide additional evidence of the positive impact that MC has on the health benefits of physical activity, specifically during participation in activities that inherently require repeated performance of object control skills.
Heart failure with preserved ejection fraction (HFpEF) is a major cause of morbidity and mortality. Exercise training is an established adjuvant therapy in heart failure; however, the effects of ...high-intensity interval training (HIIT) in HFpEF are unknown. We compared the effects of HIIT vs. moderate-intensity aerobic continuous training (MI-ACT) on peak oxygen uptake (V̇o₂peak), left ventricular diastolic dysfunction, and endothelial function in patients with HFpEF. Nineteen patients with HFpEF (age 70 ± 8.3 yr) were randomized to either HIIT (4 × 4 min at 85-90% peak heart rate, with 3 min active recovery) or MI-ACT (30 min at 70% peak heart rate). Fifteen patients completed exercise training (HIIT: n = 9; MI-ACT: n = 6). Patients trained 3 days/wk for 4 wk. Before and after training patients underwent a treadmill test for V̇o₂peak determination, 2D-echocardiography for assessment of left ventricular diastolic dysfunction, and brachial artery flow-mediated dilation (FMD) for assessment of endothelial function. HIIT improved V̇o₂peak (pre = 19.2 ± 5.2 ml·kg(-1)·min(-1); post = 21.0 ± 5.2 ml·kg(-1)·min(-1); P = 0.04) and left ventricular diastolic dysfunction grade (pre = 2.1 ± 0.3; post = 1.3 ± 0.7; P = 0.02), but FMD was unchanged (pre = 6.9 ± 3.7%; post = 7.0 ± 4.2%). No changes were observed following MI-ACT. A trend for reduced left atrial volume index was observed following HIIT compared with MI-ACT (-3.3 ± 6.6 vs. +5.8 ± 10.7 ml/m(2); P = 0.06). In HFpEF patients 4 wk of HIIT significantly improved V̇o₂peak and left ventricular diastolic dysfunction. HIIT may provide a more robust stimulus than MI-ACT for early exercise training adaptations in HFpEF.
From its early beginnings in the 1960s, the academic field of biochemistry of exercise has expanded beyond examining and describing metabolic responses to exercise and adaptations to training to ...include a wide understanding of molecular biology, cell signalling, interorgan communication, stem cell physiology, and a host of other cellular and biochemical mechanisms regulating acute responses and chronic adaptations related to exercise performance, human health/disease, nutrition, and cellular functioning.
The Routledge Handbook on Biochemistry of Exercise is the first book to pull together the full depth and breadth of this subject and to update a rapidly expanding field of study with current issues and controversies and a look forward to future research directions. Bringing together many experts and leading scientists, the book emphasizes the current understanding of the underlying metabolic, cellular, genetic, and cell signalling mechanisms associated with physical activity, exercise, training, and athletic performance as they relate to, interact with, and regulate cellular and muscular adaptations and consequent effects on human health/disease, nutrition and weight control, and human performance.
With more emphasis than ever on the need to be physically active and the role that being active plays in our overall health from a whole-body level down to the cell, this book makes an important contribution for scholars, medical practitioners, nutritionists, and coaches/trainers working in research and with a wide range of clients. This text is important reading for all students, scholars, and others with an interest in health, nutrition, and exercise/training in general.
PDF
