In healthy young adults, low-volume high-intensity training and high-volume traditional resistance training lead to similar levels of perceived satisfaction, muscle soreness, and motivation to keep...
Mechanism
Synthesis from 1 study
When people push their muscles until they can't do another rep, their body sends strong signals that they worked hard. Even if they did fewer reps than others, that feeling of complete effort makes them just as happy with the workout and just as likely to want to do it again.
Most probable mechanism
When people lift weights until they can't do another rep, their muscles get very tired, which sends signals to the brain that the workout was intense and effective. Even though they did fewer reps overall, their brain still feels satisfied because the effort felt hard and complete. This makes them just as likely to enjoy the workout and want to keep doing it as someone who did more reps but didn't push as hard.
High-intensity resistance exercise to momentary muscular failure depletes local energy stores and accumulates metabolic byproducts such as hydrogen ions and lactate in muscle fibers
Metabolic stress and fatigue trigger maximal recruitment of high-threshold motor units, including fast-twitch fibers, to maintain force output
Sustained maximal effort increases central motor drive and reduces inhibitory feedback from muscle afferents, enhancing perceived exertion and neural engagement
The perception of complete effort and neuromuscular fatigue is interpreted by the central nervous system as a high-quality training stimulus, reinforcing satisfaction and motivation to continue
Evidence from Studies
Supporting (1)
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Contradicting (0)
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