Sagittal trunk excursion and lumbar repositioning error between female and male patients with patellofemoral pain syndrome.
Ibrahim Mohamed Ibrahim Hassan, Maher El Keblawy, Mohammed Abd Elsalam and 1 others
PMID 37583919WHAT IT FOUND
People with and without PFPS did not differ in trunk movement during mini-squats or in lumbar repositioning error.
Females with PFPS showed less trunk movement than males with PFPS.
Key findings
01The PFPS and control groups did not differ overall in sagittal trunk excursion during mini-squats.
02Males showed greater sagittal trunk excursion than females overall, and females with PFPS showed less sagittal trunk excursion than males with PFPS.
03Active lumbar repositioning error did not differ by PFPS status, gender, or their combination.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The sample was a convenience sample of 58 students aged 18 to 25 years, so it may not represent older adults, adolescents, athletes or people with more severe or chronic PFPS. The examiner was inadequately blinded, and the sample size was small. Only sagittal trunk excursion and lumbar repositioning error were measured; hip and ankle kinematics and kinetic data such as ground reaction force and trunk muscle strength were not included. The PFPS and control groups did not differ overall in the main group comparisons, so the study does not show that PFPS changes trunk movement or lumbar repositioning. The PFPS group had pain for up to 2 years, and the authors suggest this duration may be too short to produce measurable lumbar proprioceptive deficits.
Declared interests
The authors declared no conflict of interest and received no financial support for the work.
The easy way to misread this
Do not conclude that PFPS patients have abnormal trunk movement or poor lumbar repositioning. The PFPS and control groups did not differ overall in trunk excursion, and lumbar repositioning error did not differ by group or gender.