People who’ve never lifted weights before gain muscle much faster than those who’ve trained before—even if they do the same workout.

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Against

Evidence from Studies

Supporting (1)

Community contributions welcome

Resistance Training Load Effects on Muscle Hypertrophy and Strength Gain: Systematic Review and Network Meta-analysis

Systematic Review With Meta-Analysis

Human

2021 Jun 1

Newbies who just started lifting get bigger muscles faster than people who’ve been lifting for a while, no matter how heavy the weights are—because their muscles are more responsive when they’re new to training.

Contradicting (0)

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No contradicting evidence found

Source Study

Resistance Training Load Effects on Muscle Hypertrophy and Strength Gain: Systematic Review and Network Meta-analysis

Score: 48

DOI: 10.1249/mss.0000000000002585

Merged Assertions

The following assertions have been merged into this one because they express the same claim:

If you've never lifted weights before, your muscles grow bigger faster from training than someone who's been lifting for a while—even if you both lift the same amount of weight, because your muscles are more responsive when they're new to exercise.

100% similar

Both assertions make the same causal claim: untrained individuals experience greater muscle hypertrophy than trained individuals regardless of load, due to greater adaptive potential in novice muscles. The only difference is 'due to' vs 'likely due to', which is a minor probabilistic qualifier that does not change the core claim. Both are causal in type and semantically equivalent.

Similar Assertions

People grow muscle at very different rates — but each person tends to grow their arms and legs similarly, no matter what weight they use. This means your genes and biology matter more than how heavy your weights are.

86%

If you’ve been lifting for a while, doing more workouts over time will help you build more muscle than just lifting heavier weights.

85%

Doing your workouts more often per week doesn’t seem to help you build more muscle, as long as the total amount of lifting stays the same.

83%

If you lift weights until you can't do another rep, you might build more muscle than if you stop before reaching that point—but we’re not totally sure yet.

83%

Lifting heavier weights makes you stronger and improves your brain-muscle connection more than lifting lighter weights, even if you do the same total amount of work and build the same muscle size.

82%