Effectiveness of PNF versus retro-walking on hamstring flexibility in college going students with hamstring tightness: A comparative study

Abstract

Background: Hamstring muscle tightness can be defined as’’ inability to extend the knee completely when the hip is flexed’’. Prevalence of hamstring muscle tightness in young college going students is 40.17%. Proprioceptive neuromuscular facilitation techniques involve the activation of some reflex responses and the application of physiological concepts pertaining to interaction of antagonistic muscles. Retro Walking is a translatory and dynamic activity which can be used to treat the flexibility.Aim: To study the effect of PNF Vs Retro Walking on hamstring flexibility in college going students with hamstring tightness. Objective: To find the effect of PNF Vs Retro Walking on hamstring flexibility in college going students with hamstring tightness.Methodology: This research had a sample size of 100 students. The participants approval was obtained, and those wanting to engage in the study were chosen. Active knee Extension test pre-analysis was done prior to intervention. The PNF and Retro Walking was given for 1 week. Participants were randomly divided into two groups with n =50 in each group. Group A received PNF while Group B received Retro walking for 1 week. Result: The mean (±Sd) for pre-interventional active knee extension test in group a(PNF) was 76.46±5.4256 and the mean (±Sd) for pre-interventional active knee extension test in group b (Retro walking) was 80.92±5.580.While the mean (±SD) for post intervention active knee extension test in group a (PNF) was 76.46±5.426 and the mean (±SD) for post interventional active knee extension test in group b (retro walking) was 81.12±5.724. The results showed that both the groups were comparable. Analysis done between Pre and Post interventional data in Group A (PNF) (t=15.516, p