original abstract†Abstracts here may not perfectly match originals, for a variety of technical and practical reasons. Some abstacts are truncated for my purposes here, if they are particularly long-winded and unhelpful. I occasionally add clarifying notes. And I make some minor corrections.
BACKGROUND: Decreased flexibility of the tensor fasciae latae is one factor that causes iliotibial band syndrome. «A dubious premise.» Stretching has been used to improve flexibility or tightness of the muscle. However, no studies have investigated the effective stretching position for the tensor fasciae latae using an index to quantify muscle elongation in vivo. The aim of this study was to investigate the effects of hip rotation and knee angle on tensor fasciae latae elongation during stretching in vivo using ultrasonic shear wave elastography.
METHODS: Twenty healthy men participated in this study. The shear elastic modulus of the tensor fasciae latae was calculated using ultrasonic shear wave elastography. Stretching was performed at maximal hip adduction and maximal hip extension in 12 different positions with three hip rotation conditions (neutral, internal, and external rotations) and four knee angles (0°, 45°, 90°, and 135°).
FINDINGS: Two-way analysis of variance showed a significant main effect for knee angle, but not for hip rotation. The post-hoc test for knee angle indicated that the shear elastic modulus at 90° and 135° were significantly greater than those at 0° and 45°.
INTERPRETATION: Our results suggest that adding hip rotation to the stretching position with hip adduction and extension may have less effect on tensor fasciae latae elongation, and that stretching at>90° of knee flexion may effectively elongate the tensor fasciae latae.
- “Deformation Response of the Iliotibial Band-Tensor Fascia Lata Complex to Clinical-Grade Longitudinal Tension Loading in-Vitro,” Mark Wilhelm, Omer Matthijs, Kevin Browne, Gesine Seeber, Anja Matthijs, Phillip S Sizer, Jean-Michel Brismée, C Roger James, and Kerry K Gilbert, International Journal of Sports Physical Therapy, 2017.
- “Iliotibial band syndrome: an examination of the evidence behind a number of treatment options,” E C Falvey, R A Clark, A Franklyn-Miller, A L Bryant, C Briggs, and P R McCrory, Scandinavian Journal of Medicine & Science in Sports, 2010.
One article on PainScience.com cites Umehara 2015 as a source:
- IT Band Stretching Does Not Work — Stretching the iliotibial band is a popular idea, but it’s very hard to do it right, and it’s probably not worth it
This page is part of the PainScience BIBLIOGRAPHY, which contains plain language summaries of thousands of scientific papers & others sources. It’s like a highly specialized blog. A few highlights:
- Effectiveness of customised foot orthoses for Achilles tendinopathy: a randomised controlled trial. Munteanu 2015 Br J Sports Med.
- A Bayesian model-averaged meta-analysis of the power pose effect with informed and default priors: the case of felt power. Gronau 2017 Comprehensive Results in Social Psychology.
- The neck and headaches. Bogduk 2014 Neurol Clin.
- Agreement of self-reported items and clinically assessed nerve root involvement (or sciatica) in a primary care setting. Konstantinou 2012 Eur Spine J.
- Effect of NSAIDs on Recovery From Acute Skeletal Muscle Injury: A Systematic Review and Meta-analysis. Morelli 2017 Am J Sports Med.