The Claim

Does resting 1 minute vs 2.5 minutes between weightlifting sets affect hormone levels?

Source: The Effect of Resistive Exercise Rest Interval on Hormonal Response, Strength, and Hypertrophy With Training

What the research says

Supports is higher

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

Supports
37score
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.

Description
1 study reviewed
In plain English

When you lift weights and rest only 1 minute between sets, your body releases more stress and sex hormones right after the workout — but only at the very start; after a few weeks, this effect goes away.

See the scientific wording

In healthy, recently untrained males, resistance training with 1-minute rest intervals between sets is associated with a greater acute postexercise plasma testosterone and cortisol response during the first week of training compared to 2.5-minute rest intervals, but these hormonal differences disappear by week 10.

What the research says

1 study

  1. Study: The Effect of Resistive Exercise Rest Interval on Hormonal Response, Strength, and Hypertrophy With Training

    In new guys lifting weights, taking only 1 minute of rest between sets made their stress and testosterone hormones spike more than taking 2.5 minutes — but only in the first week. After 10 weeks, both groups had the same hormone levels, just like the claim said.

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.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.