Effect of Dynamic Stretching Warm-Up Protocol on Hamstring Flexibility in Roller-Skaters: An Experimental Study

Purpose of the study: To find the effect of dynamic stretching warm-up protocol on hamstring flexibility in roller-skaters.

Materials and methodology: Subjects fulfilling the inclusion and exclusion criteria were included. After taking consent from parents, the skaters were assessed for their hamstring flexibility using the sit and reach test and 90-90 Straight Leg Raise (SLR). The skaters were then asked to perform set of 8 stretching exercises daily for 4 weeks. Prior to exercise the skaters had to do warm-up and post stretching, cool down. The entire protocol was supposed to be performed before their practice. After 4 weeks, post assessment was taken for their flexibility using the 90-90 SLR and the sit and reach test. Statistical analysis was done using the unpaired t test.

Result: The statistical analysis showed considerable extremely significant improvement in 90-90 SLR and Sit and reach test with p value <0.0001

Conclusion: The above study concluded that dynamic stretching warm-up had significant improvement on flexibility of hamstring muscles, both clinically and statistically.