Keywords
Explosive strength
Isometric endurance
Neuromuscular fatigue
Resistance training
How to Cite
Abstract
Background: Acute neuromuscular fatigue after resistance training impairs functional performance, yet effects on explosive strength, isometric endurance, and reactive capacity remain insufficiently understood in recreational adults.
Aims: The aim of this study was to examine the acute effects of a single session of resistance training on functional neuromuscular performance of the leg muscles in recreationally active men.
Methods: This experimental study employed a pre–post-test design involving eighteen male participants (mean age: 31 ± 4 years) with a minimum of six months of continuous recreational training experience. Participants completed a standardised squat-based resistance training session with external load. Neuromuscular performance was assessed before and immediately after the training session using four functional field tests: Countermovement Jump (CMJ), Squat Jump (SJ), Wall-sit test, and Repeated Jump Test (RJT).
Result: The results demonstrated a statistically significant decline in performance across all tests following training (CMJ: −9.2%, SJ: −7.2%, Wall-sit: −18.1%, RJT: −10.4%; p < 0.001), indicating pronounced acute neuromuscular fatigue. The greatest performance reductions were observed in isometric endurance and reactive performance, while explosive strength also showed a significant decrease.
Conclusion: These findings indicate that even a single resistance training session can induce measurable and temporary impairments in functional neuromuscular performance of the lower limbs. The results highlight the importance of appropriate load management and recovery planning in recreational training contexts. Future research should investigate different training intensities, recovery strategies, and population groups to further clarify acute neuromuscular responses to resistance exercise.
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