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Hip and knee movement in female runners

PainSci » bibliography » Ferber et al 2010
Tags: etiology, self-treatment, IT band pain, structuralism, pro, treatment, knee, leg, limbs, pain problems, overuse injury, injury, running, exercise, tendinitis, biomechanical vulnerability

Two pages on PainSci cite Ferber 2010: 1. The Complete Guide to IT Band Syndrome2. Does Hip Strengthening Work for IT Band Syndrome?

PainSci notes on Ferber 2010:

This study is a fishing expedition to confirm the (pet) theory that hip strength is a significant factor in ITBS. It is not surprising in a general sense that it found some indications of abnormal running mechanics. What is notable is that the abnormalities do not correspond well or cleanly to the notion that “weak hips” are the problem. Also, typical of studies with results that aren’t that interesting, only the statistical significance of the abnormalities is mentioned, and not their actual size — which was probably small.

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.

STUDY DESIGN: Cross-sectional experimental laboratory study.

OBJECTIVE: To examine differences in running mechanics between runners who had previously sustained iliotibial band syndrome (ITBS) and runners with no knee-related running injuries.

BACKGROUND: ITBS is the second leading cause of knee pain in runners and the most common cause of lateral knee pain. Despite its prevalence, few biomechanical studies have been conducted to better understand its aetiology. Because the iliotibial band has both femoral and tibial attachments, it is possible that atypical hip and foot mechanics could result in the development of ITBS.

METHODS: The running mechanics of 35 females who had previously sustained ITBS were compared to 35 healthy age-matched and running distance-matched healthy females. Comparisons of hip, knee, and ankle 3-dimensional kinematics and internal moments during the stance phase of running gait were measured.

RESULTS: The ITBS group exhibited significantly greater peak rearfoot invertor moment, peak knee internal rotation angle, and peak hip adduction angle compared to controls. No significant differences in peak rearfoot eversion angle, peak knee flexion angle, peak knee external rotator moment, or peak hip abductor moments were observed between groups.

CONCLUSION: Females with a previous history of ITBS demonstrate a kinematic profile that is suggestive of increased stress on the iliotibial band. These results were generally similar to those reported for a prospective study conducted within the same laboratory environment.

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