Effect of Static Stretching and Eccentric Exercise on Improving Hamstring Flexibility in University Students.
DOI:
https://doi.org/10.70672/rf2ze989Keywords:
Active knee extension test, eccentric exercise, hamstring flexibility, static stretchingAbstract
Hamstring tightness is prevalent among sedentary young adults and is associated with altered pelvic alignment, reduced lumbar lordosis, and increased risk of musculoskeletal injury. While static stretching and eccentric exercise are frequently used to improve hamstring flexibility, evidence comparing their effectiveness in non-athletic student populations is limited. This study aimed to evaluate and compare the effects of a four-week static stretching and eccentric exercise programme on hamstring flexibility. An experimental study was conducted with 36 university students (aged 18 to 25 years) not involved in structured exercise programmes. Participants were randomly allocated to a static stretching group (n=18) or an eccentric exercise group (n=18). Interventions were performed three times per week for four weeks. Hamstring flexibility was assessed using the Active Knee Extension Test (AKET) and hip flexion active range of motion (AROM) pre- and post-intervention. Data were analysed using paired and independent t-tests, with significance set at p<0.05. Both groups demonstrated significant improvements in AKET and hip flexion AROM following the intervention (p=0.001). However, no significant difference was found between the two groups in post-intervention outcomes (p>0.05). In conclusion, static stretching and eccentric exercise are comparably effective in improving hamstring flexibility among sedentary university students. These findings support the use of either modality for enhancing flexibility in this population.
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