Influence of pistol squat on decline angle and hamstring muscle activity in an healthy population

Abstract

Background: Modern lifestyle and physically inactive society is one of the most common causes of the reduced knee joint mobility. Underactive and uneven distribution of stresses on the knee joint is one the main causes for decreased joint stability and flexibility. Aim: the purpose of the study is to know the Influence of pistol squat over decline angle and Hamstring muscle activity of healthy population. Methodology: It is a Quasi Experimental Study design, of about 20 subjects aged 18 to 25 years and both male and female healthy population were included in the study. Ordinal scale was used to assess the Decline angle of knee range of motion. Subjects were asked to perform pistol squat and the muscle activity of Hamstring was analyzed through Electromyography and 6 weeks Pistol squat protocol training was given. Then, the pre-test and post-test values were compared by using paired sample t test and Chi square test. Results: shows that there is a significant change in Muscle activity (significant increase) and Decline angle (Significant increase) from Pre to post test. There is a significant change in ordinal scale value from pre to post. Significant change in scores from Very poor to Poor, Poor to Normal, Normal to Optimal ordinal scores. Conclusion: In this study the squatting activity had a significant effect on the flexibility of hamstrings and increased muscle activity as well as achieved the optimal decline angle of knee joint improved on the healthy population.