Clinical presentation of anterior pelvic tilt and trunk muscle endurance among patients with femoroacetabular impingement syndrome: a cross-sectional study.
Ángel González-DE-LA-Flor, Maríá García-Arrabé, Teresa Fernández-Pardo and 1 others
PMID 39374049WHAT IT FOUND
Patients with femoroacetabular impingement syndrome had greater anterior pelvic tilt and lower posterior trunk endurance than healthy controls.
Pincer-type subgroups showed lower lateral trunk endurance than Cam-type. No difference was found in anterior or lateral trunk endurance between the main groups.
Key findings
01Participants with FAIS had significantly greater anterior pelvic tilt (mean difference 1.57 degrees) and lower posterior trunk muscle endurance compared to controls.
02There were no statistically significant differences between the FAIS group and controls for anterior or lateral trunk muscle endurance.
03Within the FAIS group, the symptomatic hip side had lower lateral trunk muscle endurance than the asymptomatic side, and Pincer-type subgroups had lower lateral endurance than Cam-type subgroups.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The study design is cross-sectional, so it cannot determine if the muscle imbalances and pelvic tilt caused the FAIS or resulted from it. Pelvic tilt was measured in a static standing position, which may not reflect dynamic movement patterns during functional tasks. The sample size for specific FAIS subtypes (e.g., Pincer vs. Cam) was small and had imbalanced gender distribution, limiting the generalizability of subgroup findings. Participants were excluded if they were undergoing any physiotherapy or medical treatment, which may not represent the typical clinical population seeking care.
Declared interests
The authors certify that there are no conflicts of interest.
The easy way to misread this
Do not interpret the greater anterior pelvic tilt and lower posterior trunk endurance as evidence that correcting these factors will resolve FAIS symptoms. The study shows an association in a cross-sectional design, not a causal link or a proven treatment effect.