The Claim

Vocalizing a self-selected swear word immediately before bench pressing at 75% one-repetition maximum increases mean barbell velocity by approximately 10% (0.49 m/s to 0.54 m/s, d=1.11) in resistance-trained young men.

Source: Swearing Enhances Explosive Performance and Psychological Responses during Resistance Exercise

What the research says

Supports is higher

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

Supports
57score
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

Saying a swear word right before lifting a heavy weight increases the speed of the lift in trained young men.

See the scientific wording

Vocalizing a self-selected swear word immediately before bench pressing at 75% one-repetition maximum increases mean barbell velocity by approximately 10% (0.49 m/s to 0.54 m/s, d=1.11) in resistance-trained young men, suggesting a short-term enhancement in explosive movement performance during dynamic resistance exercise.

Why this might work

Saying a strong swear word triggers a surge of stress hormones that make muscles fire faster and harder, making the bar move quicker during a powerful lift.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: Swearing Enhances Explosive Performance and Psychological Responses during Resistance Exercise

    Saying a strong word right before lifting a heavy weight made the bar move faster on the first try, but didn’t help people do more reps afterward. The study proved it works.

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.