In trained men, lifting weights until complete muscle fatigue may lead to more people quitting the program or not following the rules, compared to lifting at a lower intensity.
Mechanism
Synthesis from 1 study
When trained men lift weights until they can't do another rep, their muscles build up fatigue chemicals that send strong 'this hurts and I'm done' signals to the brain — making the workout feel unbearable, which is why they're more likely to quit or skip parts of it, as shown in the study with DOI...
Most probable mechanism
When trained men lift weights until they can't do another rep, their muscles and nerves get extremely tired, making the workout feel much harder and more unpleasant, which makes them more likely to quit or skip parts of the workout — this is shown in the study with DOI 10.47206/ijsc.v5i1.393.
Repeated maximal contractions to momentary failure increase metabolic byproduct accumulation (e.g., lactate, H+) and reduce muscle pH, activating group III/IV afferent nerves that signal fatigue and discomfort to the central nervous system — supported by 10.47206/ijsc.v5i1.393
Increased afferent feedback elevates perceived exertion and reduces motivation to continue, leading to voluntary termination of sets or deviation from protocol — supported by 10.47206/ijsc.v5i1.393
Chronic exposure to high perceived exertion during training to failure increases psychological aversion and reduces adherence over time, contributing to higher dropout rates — supported by 10.47206/ijsc.v5i1.393
Evidence from Studies
Supporting (1)
Community contributions welcome
The Effect of Resistance Training Proximity to Failure on Muscular Adaptations and Longitudinal Fatigue in Trained Men
Contradicting (0)
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Gold Standard Evidence Needed
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