The influence of the vibration form roller exercise on the pains in the muscles around the hip joint and the joint performance.
Sang-Wan Han, Yeon-Seop Lee, Dong-Jin Lee
PMID 29184303WHAT IT FOUND
Vibration form roller exercise and ordinary form roller exercise both increased hip movement and pressure pain point values in healthy students.
The vibration group had greater gains in hip flexion, internal rotation, and iliotibial tract pressure pain.
Key findings
01Both groups had significant within-group increases in hip movement and pressure pain point values.
02The vibration group had greater between-group gains in hip flexion and internal rotation, with after values of 81.3 versus 70.8 degrees and 34.8 versus 29.7 degrees.
03The vibration group had a greater between-group gain in iliotibial tract tenderness point values, with after values of 11.1 versus 10.7.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The study used 30 university students who were free of conditions affecting the hip or walking, so it does not show what happens in patients with hip pathology. The paper does not report how participants were assigned to groups, whether participants or assessors were blinded, or a pre-registered primary outcome. The participants experienced form roller exercises for the first time, had difficulty learning initial motions, and daily-life influence on the hip joint was not controlled. The text describes between-group increases as significant but writes p>0.05, while the table note gives p<0.05. The outcomes were measured before and after a four-week program, not over longer follow-up or in daily function.
The easy way to misread this
Do not conclude that vibration foam rolling is proven to treat hip pain in patients. The participants were healthy university students with pressure pain, not a clinical hip population. The study was small, no blinding is reported, and daily-life factors were not controlled.