Frequency of reduced hamstring flexibility in prolong sitting (6-8 hours) among office workersMuhammad Sharif Waqas, Syed Mazher Ali Naqvi, Hafiza Saba Hussain, Sajid Mehmood.
Background: Hamstrings are the muscles of posterior thigh which include Semi membranous, Semi trendiness and the Biceps Femoris. These muscles are extensors of the hip and flexors of the knee and they act opposite to the extensors of the knee.
Objective of Study: To find the frequency of reduced hamstring flexibility in prolong sitting (6-8 hours) among office workers.
Methodology: This study was carried out in the banks and offices of Lahore from November 2015 to May 2016. According to inclusion criteria total 272 subjects were included in the study. Hamstring tightness was assessed by 90-90 or active knee extension test with the help of Standardised Goniometer. Data was recorded on self-made questionnaire from the subjects after 6-8 hours of their working in the afternoon and analysed by using SPSS version 20.
Results: On the basis of analysis of data hamstring flexibility was reduced in 233 subjects n= 233; 85.7% and 39 subjects shown normal range of motion
n=39, 14.3% .It was also seen that individuals having 8 hours of sitting with less extra-curricular activities were more sufferers.
Conclusion: It was concluded that prolonged sitting is an important factor causing reduced hamstring flexibility and it can be prevented by using ergonomically design chairs. By adopting correct postural alignment and by adding frequent rest breaks during prolong sitting.
Key words: Key Words: Reduced hamstring flexibility, Prolong sitting.