The Claim

In young men undergoing resistance training three times per week for nine weeks, consistently performing the same exercises for each muscle group results in a greater increase in isometric knee extension strength (12%) compared to varying the exercises for the same muscle group (7%), indicating that exercise consistency may enhance specific isometric strength gains.

Source: Does Varying Resistance Exercises for the Same Muscle Group Promote Greater Strength Gains?

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
40score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

If young guys stick to the same exercises every time they work out for about two months, they get stronger in a specific leg test than if they keep switching up their routine.

See the scientific wording

In young men performing resistance training 3 times per week for 9 weeks, maintaining the same exercises for each muscle group leads to a greater increase in isometric knee extension strength (+12%) compared to varying exercises for the same muscle group (+7%), suggesting that exercise consistency may enhance specific isometric strength gains.

What the research says

1 study
  1. Study: Does Varying Resistance Exercises for the Same Muscle Group Promote Greater Strength Gains?

    The study found that young men who did the same leg exercises every time got stronger in a specific knee test compared to those who changed exercises, which supports the idea that sticking to the same moves can help build certain types of strength.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

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