Training & movement
B · Reasonable confidenceLight and heavy weights give equal muscle growth at matched volume
Subject: Hypertrophy and strength gain across volume-matched loads
What this means
With matched volume load no hypertrophy difference between very low, low, moderate, and high loads. For 1RM strength high load superior to low and moderate; moderate better than low. Very low and low loads similar.
Carvalho L, Junior RM, Barreira J, Schoenfeld BJ, Orazem J, Barroso R · 2022 · Applied Physiology, Nutrition, and Metabolism 47(4):357-368
What does this rating mean?
A solid systematic review with caveats, or consistent indications with a limited scope.
Findings
At matched volume, training with lighter and heavier weights produces comparable muscle growth, while strength gains favour heavier loads.
Who this applies to
Healthy adults, various load zones.
Size of the research
Multiple studies in meta-analysis.
What to keep in mind
Only studies training to failure; mostly untrained; short interventions.
Practical conclusion for REZA
Someone who can't lift heavy due to an injury can still build muscle mass with lighter weights. Strength gains still require heavier loading.
View method and source
Methodology
Systematic review with meta-analysis
Original source
DOI: 10.1139/apnm-2021-0515 · PMID: 35015560
View on PubMed →This information is general education about scientific research. It is not personal medical advice and does not replace diagnosis or treatment by a doctor or other healthcare professional. If you have symptoms, a medical condition or take medication, consult your GP or treating professional before changing your training or nutrition.