Background: Hamstring strain injury (HSI) is the most common cause of missing practices and sporting events among running-related athletes. The incidence rate of recurrence in individuals with HSI ranges from 12% to 63%. While various risk factors for HSI have been identified, the alterations and role of biomechanical factors as potential causes of injury have been largely overlooked. Objectives: To report the critical biomechanical parameters assessed among running-related athletes with a recurrent HSI and to present common testing protocols in assessing the biomechanical parameters among running-related athletes with a recurrent HSI. Methods: Eligibility Criteria: Included studies investigated biomechanical parameters assessed among collegiate or elite running-related athletes with recurrent HSI. Sources of Evidence: This scoping review was registered in OSF and was conducted based on PRISMA-ScR. Six electronic databases were systematically searched from 1993 to May 2022. Charting Methods: The reviewers created a data charting tool for the scoping review. Results: Out of 874 articles, a total of 10 articles were included in the scoping review. The critical biomechanical parameters assessed include trunk flexion, hip flexion, and knee extension angles (kinematic variables), flight and stance times and velocity (spatiotemporal variables), and EMG activity of biceps femoris, semitendinosus, semimembranosus, vastus lateralis, and rectus femoris, knee flexion and extension angle peak joint torque (kinetic variables). The most common running test protocols used were the 30-meter overground repeated sprint test, a percentage of maximum running velocity (treadmill), and repeated sprints on a non-motorized treadmill. The most common protocols for isokinetic muscle testing were 60 degrees (concentric), 300 degrees (concentric), and 180 degrees (eccentric) per second angular velocities. Conclusion The review demonstrated a need for more research on this topic, leading to only limited biomechanical parameters being discussed in the literature. This underscores the need for more rigorous research that could have practical applications for athletes and coaches.
Biomechanical Phenomena ; Athletes

OBJECTIVES: This study examined the physical activity patterns of the University of Santo Tomas college students in Manila, Philippines in terms of participation in moderate to vigorous physical activity, frequency and duration of participation, METS-min/week, sitting habits and walking activities. METHODS: A total of 551 males and 850 female college students (N=1401) from the University of Santo Tomas were randomly selected for the study. After anthropometric measurements (height, weight, BMI and Waist circumference) were taken, the International Physical Activity Questionnaire (short form) was answered by the students. RESULTS: A greater percentage of male college students engage in vigorous physical activity (66.97%) in terms of frequency per week (2.42 + 1.56 days), duration (119.52 + 70.70 minutes) and MET-min/week (2252.77 + 2789.81 METS). On the other hand, more female college students engage in moderate physical activity in terms of frequency per week (4.69 + 2.04 days). However, male college students who engage in moderate physical activity spend a longer duration (106.02 + 108.55 minutes) and higher METmin/week (1945.59 + 2721.02 METS) than their female counterpart. CONCLUSION It is important to engage in physical activity on a daily basis, with recommendations given by the American Heart Association and the World Health Organization. Appropriate physical activity assists young people to develop healthy musculoskeletal tissues, cardiovascular system, neuromuscular awareness and maintain a healthy body weight and composition. It has also been associated with psychological benefits in young people by improving control over anxiety and depression, good selfperception and expression, as well as avoidance of tobacco, alcohol and drug use.

Feeding Behavior ; Obesity ; Overweight

Objective: Our study aims to establish interrater reliability in performing the step-by-step procedure of selected pain provocation tests for hamstrings and special tests for lower extremity musculoskeletal injuries. Study Design: An interrater reliability study Setting: University of Santo Tomas - Sports Science Laboratory Participants: Ten healthy adults (five females, five males; age = 22.2 ± 0.42) from the university community. Main outcome measures: Interrater reliability of performing step-by-step procedures for selected pain provocation tests for hamstrings (painful resisted knee flexion 90°, painful resisted knee flexion 30°, active slump test, Puranen-Orava Test, bent knee stretch) and special tests for lower extremity musculoskeletal injuries (Lachman’s test, McMurray’s test, posterior drawer test, valgus, and varus stress test). Results: Fleiss kappa showed perfect agreement (κ = 1.00) for all test procedures except for Lachman’s test procedure 1 (κ= -0.11 [95% CI, -0.36 to 0.14]), active slump test procedure 4 (κ= -0.03 [95% CI, -0.28 to 0.23]), active slump test procedure 5 (κ= -0.11 [95% CI, -0.28 to 0.23]), and active slump test procedure 6 (κ= -0.05 [95% CI, -0.31 to 0.20]), which resulted in negative agreements. Conclusions The researcher developed protocols for each special and provocative test were consistent in measuring the intended procedures, and the raters were generally consistent with their ability to measure these tests.