How different weights might build different muscles
Inducing hypertrophic effects of type I skeletal muscle fibers: A hypothetical role of time under load in resistance training aimed at muscular hypertrophy.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Practical Takeaways
Consider using low loads (<60% 1RM) to failure for potential type I fiber growth if endurance is a goal, or high loads (≥60% 1RM) for type II fiber growth if power is a priority.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Practical Takeaways
Consider using low loads (<60% 1RM) to failure for potential type I fiber growth if endurance is a goal, or high loads (≥60% 1RM) for type II fiber growth if power is a priority.
Publication
Journal
Medical hypotheses
Year
2018
Authors
J. Grgic, J. Homolak, P. Mikulic, J. Botella, B. Schoenfeld
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Claims (4)
Lifting lighter weights might make your slow-twitch muscles grow more than your fast-twitch muscles, according to some new ideas.
Lifting heavy weights might make your fast-twitch muscle fibers grow bigger than your slow-twitch ones, according to some new research.
Slow-twitch muscle fibers need longer workout times to grow because they tire less easily. This can be done by lifting lighter weights until you can't lift anymore.
Slow-twitch muscle fibers (type I) can work longer without getting tired compared to fast-twitch fibers (type II), which might help you lift weights for more time before exhaustion.