The effects of a pelvic belt on trunk and lower extremity muscles in the bridge position.
Hyun-Gyu Cha, Yan-Ting Wu, Myoung-Kwon Kim
PMID 28174437WHAT IT FOUND
Wearing a pelvic compression belt in the bridge position lowered recorded muscle activity in the measured trunk and leg muscles in 20 healthy adults.
This is a muscle-activation finding, not evidence of pain relief or functional benefit.
Key findings
01In 20 individuals without a history of orthopedic problems, recorded activation was lower while wearing the pelvic compression belt in the bridge position in the erector spinae, oblique internus abdominis, rectus femoris, and biceps femoris (p<0.05).
02The reported mean %MVIC values were lower with the belt: 101.7 without and 80.9 with for erector spinae, 107.8 without and 87.0 with for oblique internus abdominis, 93.7 without and 77.8 with for rectus femoris, and 94.7 without and 83.6 with for biceps femoris.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
Read the rest of this summary
You get three full summaries a month, free, and we do not ask for a card. Search, the TL;DRs and your library stay unlimited either way.
What it does not show
The study included 20 individuals without a history of orthopedic problems, so the results cannot be generalized to people with low back or sacroiliac pain. The belt's compression force was not controlled, although a skilled physical therapist adjusted it. The outcome was surface EMG activity, which does not directly represent muscle force. The paper reports no pain, function, or clinical outcome, only muscle activation. The paper does not report randomisation or blinding, so the study design details are incomplete.
The easy way to misread this
Do not conclude that a pelvic compression belt improves low back pain, sacroiliac stability, or clinical outcomes. The study measured only muscle activation in 20 healthy adults, and the authors state the findings cannot be generalized to other populations.