In trained men, lifting weights until complete fatigue may lead to more people quitting or failing to follow the program, and could pose greater safety risks than lifting with some reserve, even...
Mechanism
Synthesis from 1 study
When trained men push their muscles to complete exhaustion, their bodies build up fatigue chemicals and their nervous system gets overwhelmed, making the workout feel painfully hard — this makes them more likely to quit or skip workouts, as shown in the study with DOI 10.47206/ijsc.v5i1.393, even...
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 plan — this is shown in the study with DOI 10.47206/ijsc.v5i1.393, where stopping short of failure felt easier and people stuck with it better, even though muscle growth was similar.
Repeated maximal contractions to momentary failure increase metabolite accumulation (e.g., lactate, H⁺ ions) and reduce motor neuron firing efficiency, elevating perceived exertion and neuromuscular fatigue.
Elevated perceived exertion and fatigue reduce motivation and increase aversion to continued training, leading to higher dropout rates and protocol deviations.
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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