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Analysis v1
Strong Support

The more you practice a specific move, the better you get at it—but beginners improve faster by doing big, complex lifts.

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Evidence from Studies

Supporting (2)

48

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Comparison of Muscle Hypertrophy and Strength Adaptations Induced by Back Squat and Leg Extension Resistance Exercises.

Randomized Controlled Trial
Human
2025 Dec 12

People who did squats got much stronger at squats, even though others only did leg extensions — showing that doing a full-body move like a squat makes you better at that move than just working one muscle.

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The increase in muscle force after 4 weeks of strength training is mediated by adaptations in motor unit recruitment and rate coding

Randomized Controlled Trial
Human
2019 Apr

This study found that after just 4 weeks of strength training, the brain and spinal cord got better at telling muscles to work harder and more efficiently — exactly what the claim says happens when people do compound movements, even without practicing the exact movement.

Contradicting (0)

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No contradicting evidence found

Similar Assertions

Strength expression is movement-specific, but in untrained individuals, neuromuscular adaptation from compound movements provides greater initial strength gains than specificity-driven training.

53
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In untrained individuals, compound movements can improve performance on isolation movements due to enhanced neuromuscular coordination, overriding the specificity principle; however, in trained individuals, strength gains are highly movement-specific.

82
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82%

In untrained individuals, compound resistance exercises improve strength in isolated movements more effectively than isolation exercises alone due to enhanced neuromuscular coordination and motor learning.

0
48
75%

If you lift weights with your own body and free weights, you'll get stronger at doing just that — not necessarily at using machines. And if you train mostly on machines, you'll get better at those machines. Your body learns the exact movement you practice.

52
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