Changes in unilateral upper limb muscular strength and Electromyographic activity following a 16-week strength training intervention in survivors of breast cancer

Author(s)
Hagstrom, Amanda D
Shorter, Kathleen A
Marshall, Paul W M
Publication Date
2019
Abstract
Upper limb strength deficits are frequently observed following breast cancer (BC) and its treatments. It is currently unknown whether these unilateral deficits can be corrected by a standard bilateral strength training intervention. Twenty-three survivors of BC were included in this analysis. Fourteen performed a 16-week resistance training (RT) intervention, 9 were assigned to a usual care waitlist control group. Electromyographic analysis of the pectoralis major and triceps brachii were monitored during 3 maximal isometric contractions and a fatiguing endurance task. Muscular strength was significantly different between limbs at the start of the intervention (p = 0.02). Electromyographic amplitude and median frequency did not differ between limbs at the start of the intervention. Muscular strength was significantly different between limbs in the RT group at the end of the intervention (p = 0.01). Electromyographic amplitude did not differ between limbs or groups at the end of the intervention. Bilateral strength training did not correct the unilateral strength deficit observed in this group of survivors of breast cancer. Periods of unilateral strength training should be implemented into periodized RT programs in this cohort.
Citation
Journal of Strength and Conditioning Research, 33(1), p. 225-233
ISSN
1533-4287
1064-8011
Pubmed ID
30562305
Link
Publisher
Lippincott Williams & Wilkins
Title
Changes in unilateral upper limb muscular strength and Electromyographic activity following a 16-week strength training intervention in survivors of breast cancer
Type of document
Journal Article
Entity Type
Publication

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