Searching for just a few words should be enough to get started. If you need to make more complex queries, use the tips below to guide you.
Article type: Research Article
Authors: Neltner, Tyler J. | Addie, Cameron D. | Cosio-Lima, Ludmila M. | Dake, Chris C. | Brown, Lee E.*
Affiliations: University of West Florida, Pensacola, FL, USA
Correspondence: [*] Corresponding author: Lee E. Brown, University of West Florida, 11000 University Pkwy, Pensacola, FL 32514, USA. E-mail: Leebrown1220@gmail.com.
Abstract: BACKGROUND: The ability to train unilaterally and experience contralateral strength gains, a phenomenon known as cross-education, has been well documented in the lower extremity but not the upper. Additionally, short-term training of one to two weeks has shown neural adaptations in strength. OBJECTIVE: To examine the effects of a short-term cross-education strength-training program on contralateral shoulder strength. METHODS: Twenty-seven healthy college students (age: 21.37 ± 2.02 years; height: 167.85 ± 7.63 cm; mass: 74.42 ± 16.73 kg) were randomly assigned to either an experimental (n= 13) or control group (n= 14). All participants completed a pre and post-test separated by two weeks. Testing consisted of 6 maximal repetitions of shoulder internal/external rotation, at each of three speeds (60 and 180∘/s). The experimental group underwent right arm unilateral training (3 × 10 repetitions at all 3 speeds) two times a week for the next two weeks on the same dynamometer. Control group did not train. RESULTS: A 2 × 2 × 2 × 2 (time × arm × speed × group) ANOVA revealed no significant interactions by group, however there main effects of time and arm. For internal rotation, peak moment was significantly greater in the right arm and at 60∘/s, and average power was significantly greater in the right arm and at 180∘/s. For external rotation; peak moment, average power and total work, were significantly greater in the right arm and at 60∘/s. CONCLUSIONS: Short-term cross education training showed no increase in contralateral shoulder strength. Therefore, short-term cross education strength training should not be considered a useful tool in shoulder rehabilitation at this time. However, future research should investigate contrasting training programs.
Keywords: Muscle, neural, strength
DOI: 10.3233/IES-192172
Journal: Isokinetics and Exercise Science, vol. 27, no. 4, pp. 261-266, 2019
IOS Press, Inc.
6751 Tepper Drive
Clifton, VA 20124
USA
Tel: +1 703 830 6300
Fax: +1 703 830 2300
sales@iospress.com
For editorial issues, like the status of your submitted paper or proposals, write to editorial@iospress.nl
IOS Press
Nieuwe Hemweg 6B
1013 BG Amsterdam
The Netherlands
Tel: +31 20 688 3355
Fax: +31 20 687 0091
info@iospress.nl
For editorial issues, permissions, book requests, submissions and proceedings, contact the Amsterdam office info@iospress.nl
Inspirees International (China Office)
Ciyunsi Beili 207(CapitaLand), Bld 1, 7-901
100025, Beijing
China
Free service line: 400 661 8717
Fax: +86 10 8446 7947
china@iospress.cn
For editorial issues, like the status of your submitted paper or proposals, write to editorial@iospress.nl
如果您在出版方面需要帮助或有任何建, 件至: editorial@iospress.nl