A hamstring injury is strain or pulls of hamstring muscles commonly observed in sport related activities including cricket, soccer, basketball, football, and tennis due to sprinting with sudden stops and starts. This injury typically causes a sudden, sharp pain in the back of your thigh. Swelling, tenderness, bruising or discoloration along the back of leg, as well as muscle weakness or an inability to put weight on injured leg is appeared within the hour.

Objective: The aim of study was to find out the prevalence of changes in lower limb strength and leg asymmetry among cricketers with prior hamstring rehabilitation.

Material and Method: A cross sectional study was carried out following nonprobability convenient sampling technique. Data was collected from different cricket local cricket academies and clubs of Lahore. A total sample size of 79 cricketers was selected according to inclusion criteria of this study in which age group 16-26 years and had history of hamstring injury for 12 months. Demographic data including age, gender, height, weight. FASH (functional assessment scale for hamstring injury), single leg hop test and Asymmetry Index were used for assessing strength of hamstring muscles along with bilateral asymmetry in legs. The data was analyzed using SPSS software version 25 by using Correlation and Chi-square test.

Results: A total sample size of 79 cricketers was selected according to inclusion criteria of this study in which age group 16-26 years and had history of hamstring injury for 12 months. According to results from FASH questionnaire assessment of hamstring injury was done in which more than 90% were healthy and rest 10% were at risk for injury. While performing single leg hop test average jump distance was 53.48inches for unaffected leg and 39inches for affected leg.

Conclusion: From this study, it is concluded that leg asymmetry is found prevalent in cricket players with prior hamstring rehabilitation. It is also concluded that lower limb strength of cricket players is significant. Leg asymmetry affects their functional and athletic abilities, caused pain during daily professional training, and affects their sports participation and performance.

Index Terms: Cricket Players, Leg Asymmetry, Lower Limb Strength, Post Hamstring Rehabilitation,