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assertion
Analysis v1

Muscles can't grow bigger unless the tendons and joints around them are strong enough to hold the extra weight.

Evidence from Studies

Supporting (2)

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Untitled Study

When muscles are stretched in a lab-made tissue, they grow bigger — but only because the surrounding connective tissues (like tendons and scaffolding) adapt too. This shows muscles can’t grow without their connective tissue partners keeping up.

Untitled Study

Even before birth, the tendon that connects the calf muscle to the heel grows in sync with the muscle itself — meaning the muscle can’t just grow bigger on its own; it needs the tendon to grow with it.

Contradicting (2)

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Untitled Study

When rats did exercises that stretched their muscles a lot, their muscles got bigger even though the connective tissue got scarred and thicker — so scar tissue doesn’t always stop muscles from growing.

Untitled Study

Scientists tried to block a chemical that makes tendons stiff, hoping muscles would grow bigger — but the muscles grew just the same. So sometimes, connective tissue doesn’t hold muscles back.

Similar Assertions

Your muscles grow bigger not because of just one thing like lifting heavy weights or doing lots of reps, but because of how all the workout factors—like how hard you push, how often you train, and how well you recover—work together.

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Muscles get bigger when they're put under tension during exercise - like when you lift weights. Only exercises that make your muscles work hard against resistance will help them grow.

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Lifting weights makes your muscles bigger, and the main reason is how much total work you do—like how heavy the weights are, how many sets and reps you do, and how long you hold the tension. More total work = bigger muscles.

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