Hip Adduction and Abduction Strength Profiles Among Bantam, High School, Juniors, and Collegiate American Ice Hockey Players.
Morgan L Olson, Gary Schindler
PMID 35693870WHAT IT FOUND
Hip strength is symmetrical across levels.
Players showed no significant differences in hip adduction or abduction strength between dominant and non-dominant legs. You can assume symmetry when tracking return-to-play progressions for groin injuries.
Key findings
01There were no significant differences in hip adduction or abduction strength between dominant and non-dominant legs across all playing levels.
02Hip adduction-to-abduction strength ratios did not differ significantly between bantam, high school, junior, and collegiate players.
03Players generated approximately 0.5 lbs/kg of bodyweight with their adductors and 0.45 lbs/kg with their abductors across all levels.
STILL TO COME
How it was doneWhat they foundWhat it means for PTs
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What it does not show
The study is cross-sectional, so it cannot prove that these strength profiles cause or prevent injuries. Sample sizes for the bantam and collegiate groups were smaller than the high school and junior groups. The results apply only to male ice hockey players and may not generalize to female athletes or other sports. Inter-rater reliability of the testers was not formally calculated, though they standardized their protocol.
Declared interests
The authors report no conflicts of interest or relevant financial disclosures.
The easy way to misread this
Do not assume that a player with a 'normal' symmetrical strength profile is free from injury risk. The study found that a small percentage of players had ratios below 80%, and those with low ratios often had a history of injury, but the cross-sectional design cannot predict future injury or rule out other risk factors.