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Cross éducation : effets du travail excentrique unilatéral des extenseurs du genou sur le gain de force controlatéral

Year: 2024
Type: dissertation
Abstract: Background: Cross-education is a complex neurophysiological phenomenon that describes the increase in strength of one limb following unilateral training of the opposite limb. Eccentric work has been demonstrated to be the contraction regime inducing the greatest transfer of force through cross-education.Objective: To evaluate the strength gain obtained by cross-education of the knee extensors following a unilateral eccentric protocol.Methods: Four databases were consulted from 2013 to November 2023. All selected randomized clinical trials included unilateral eccentric training of knee extensors in healthy young adults.Results : Four studies were included in this review. Data from 132 participants were assembled and analyzed. The difference between overall group (experimental/control) of each maximal force couple presented the following results. The increase in maximum eccentric force torque presents the largest gains with +41,26 N.m [23,09; 59,44] (p<0.00001) of the untrained limb. The maximum isometric force torque presents a value of +21,49 N.m [2,91 ; 40,07] (p=0,02). And as for the maximum concentric force torque, it seems the least sensitive following the eccentric protocol with a non-significant amount of +12,79 N.m [-0,03 ; 25,60] (p = 0,05).Discussion: The biases present in this review may limit the interpretation of the results. However, unilateral eccentric training of the knee extensors appears to provide strength gains in the contralateral limb. Even if the training methods are known, research is still necessary to optimize the effects. Alternative rehabilitation techniques such as cross-education could be interesting in order to improve, maintain or limit a loss of knee extensor strength.
Source: HAL AMU
Language: French
Field: Medicine
Open Access status: green
OpenAlex ID: W7134677931
Cites: 68
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Related to: 10