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Systematic review finds unilateral resistance training improves contralateral upper-limb strength via neural mechanisms without hypertrophy

Ignacio Hernando-Garijo 1 2 ,

5h ago· 2 min readenInsight

science health systematic review sports medicine

Summary

This systematic review and meta-analysis investigates the cross-education effect of unilateral resistance training on the upper limb. The study finds that unilateral resistance training produces small but significant improvements in strength of the contralateral (untrained) upper limb, but no detectable hypertrophic adaptations. This supports a predominantly neural mechanism underlying cross-education, suggesting potential relevance for strength preservation strategies during limb immobilization.

Source

Twitter / XSystematic review finds unilateral resistance training improves contralateral upper-limb strength via neural mechanisms without hypertrophypubmed.ncbi.nlm.nih.gov

Key quotes

· 4 pulled

Unilateral limb immobilization leads to rapid declines in muscle strength and function.

Cross-education has been proposed as a strategy to mitigate disuse-related strength loss, although current evidence remains largely indirect.

Unilateral resistance training elicits small but significant improvements in contralateral upper-limb strength without detectable hypertrophic adaptations.

These findings support a predominantly neural mechanism underlying cross-education and suggest potential relevance for strength preservation strategies.

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Unilateral resistance training elicits small but significant improvements in contralateral upper-limb strength without detectable hypertrophic adaptations. These findings support a predominantly neural mechanism underlying cross-education and suggest pote

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