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Effect of short term cross education training on contralateral shoulder strength
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Effect of short term cross education training on contralateral shoulder strength

Tyler Joseph Neltner
University of West Florida,
Master of Science (MS), University of West Florida
2019

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Abstract

The ability to train unilaterally and experience contralateral strength gains, a phenomenon known as cross-education, has been well documented in the lower extremity. Additionally, short-term training of one to two weeks has shown neural adaptations in strength. The purpose of this study is to examine the effects of a short-term cross-education strength-training program on contralateral shoulder strength. Twenty-seven healthy college students (age: 21.37 ± 2.02 years; height: 167.85 ± 7.63cm; mass: 74.42 ± 16.73kg) were randomly assigned to either an experimental (n = 13) or control group (n = 14). Participants were tested at each of three speeds (60, 180, and 300d/s), completing six repetitions of shoulder internal/external rotation. The experimental group underwent right arm unilateral training two times a week for the next two weeks. No analysis could be done on 300d/s due to no load range data. Therefore, a 2x2x2x2 (time x arm x speed x group) ANOVA revealed no significant interactions by group; however, there were main effects of time and arm. Peak torque was significantly greater in the right arm and at 60d/s, and average power was significantly greater in the right arm and at 180d/s. Shortterm cross education training showed no increase in contralateral shoulder strength.
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CC BY V4.0,  Open Access

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