Effect on hamstring flexibility of hamstring stretching compared to hamstring stretching and sacroiliac joint manipulation

Effect on hamstring flexibility of hamstring stretching compared to hamstring stretching and sacroiliac joint manipulation
Received 21 June 2005; accepted 9 January 2006. Available online 7 February 2006.
Matthew Fox
Clinical Chiropractic
ScienceDirect

Copyright © 2006 The College of Chiropractors Published by Elsevier B.V.

The Tettenhall Road Chiropractic Clinic, 84, Tettenhall Road, Wolverhampton, W Midlands WV1 4TF, United Kingdom

Summary
Background
Previous studies concerning the effect of hamstring stretching and sacroiliac joint manipulation on hamstring flexibility or hip flexion range of motion have only concentrated on the immediate post-intervention effects.

Objective
To examine the effect of a 3-week trial of hamstring stretching compared to stretching and sacroiliac joint manipulation on hamstring flexibility as measured using the passive straight leg raise (SLR) and the back saver sit and reach (BSSR) test.

Methods
All 15 volunteers passed the inclusion criteria and had a passive straight leg raise less than or equal to 70?. The participants were randomly divided into either the hamstring stretching or stretching/manipulation group. Both protocols lasted for 3 weeks and involved participants stretching twice a day, being tested twice a week (SLR and BSSR tests) during which the manipulation group received bilateral sacroiliac joint manipulations. A final assessment was performed 1 week after the cessation of the protocol. Non-parametric MannÒWhitney U and Wilcoxen Signed Ranks tests were performed on the data.

Results
Both protocols produced significantly greater results for the SLR and BSSR tests. When compared, results for both tests in the manipulation group were greater than the stretch group. However, only increases in the passive straight leg raise on the left leg were significantly greater in the manipulation group.

Conclusions
The results suggest both hamstring stretching and stretching with sacroiliac joint manipulation significantly increase flexibility over a 4-week period; however, more research is needed to determine whether manipulation has a greater effect.

Keywords: Back saver sit and reach test; Chiropractic manipulation; Flexibility; Hamstring muscles; Passive straight leg raise; Sacroiliac joint; Static stretch

Winner of the 2005 College of ChiropractorsÌ Research Division's Undergraduate Writing Prize.
Tel.: +44 1902 429138.

You can view the abstract online. A subscription is required to view the full text or it can be purchased online.
Comments: 0
Votes:18