Chronic Resistance Training Does Not Ameliorate Unloading-Induced Decrements in Neuromuscular Function

Objective: The aim of this study was to assess the efficacy of long-term resistance training in preventing the detrimental effects of muscle unloading on neuromuscular function. Design: Eleven untrained men and 11 men with extensive backgrounds in resistance training were tested for several parameters of neuromuscular function at various isokinetic contractile velocities before and after 7 days of muscle unloading. Measurements included muscle mass, strength, power, total work, electromyography, and neuromuscular transmission efficiency using superimposed electrical stimulation of maximally contracting muscles. Results: Muscle performance was superior in resistance-trained subjects before and after unloading. In both groups of participants, unloading resulted in significantly (P

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