The Effects of Training the Humeral Rotators on Arm Elevation in the Scapular Plane
in Journal of Sport RehabilitationContext:
It has been hypothesized that the fibers of the infraspinatus and subscapularis superior to the glenohumeral axis of rotation contribute directly to arm elevation.
Objective:
To test this hypothesis by assessing the impact of 5 weeks of concentric isokinetic humeral-rotator training in a modified neutral position on scapular-plane arm-elevation peak torque.
Design:
Prospective, pretest/posttest with control group.
Participants:
24 female and 6 male noninjured college students (N = 30).
Main Outcome Measures:
Scapular-plane-elevation peak torque at 60, 180, and 300°/s.
Results:
Repeated-measures ANOVA indicated no difference in peak torque between groups at any of the angular velocities tested (P < .05)
Conclusions:
5 weeks of concentric isokinetic humeral-rotator training did not significantly increase scapular-plane-elevation peak torque.
Durall is with the Physical Therapy Program at Creighton University, Omaha, NE 68178. He was with the Physical Therapy Program at the University of Wisconsin-LaCrosse and Gundersen-Lutheran Sports Medicine, Onalaska, Wisc, at the time this study was conducted. Kernozek, Davies, Fater, and Straker are with the Physical Therapy Program at the University of Wisconsin-LaCrosse. Davies is also with Gundersen-Lutheran Sports Medicine, Onalaska. Gibson is with the Dept of Sport and Exercise Science and the Athletic Training Program at the University of Wisconsin-LaCrosse. Gibson and Fater are also with Gundersen-Lutheran Medical Center, and Straker, with Gundersen-Lutheran Sports Medicine, LaCrosse.
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