The Claim

In young adults, a 12-week detraining period following 8 weeks of high-intensity interval training preserves hypomethylation at 3,190 differentially methylated positions in skeletal muscle, despite mitochondrial respiration returning to baseline levels.

Source: Human skeletal muscle possesses an epigenetic memory of high intensity interval training affecting mitochondrial function

What the research says

Supports is higher

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

Supports
39score
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.

How it works
1 study reviewed
In plain English

After young adults stop working out intensely for 12 weeks, their muscles still keep certain chemical 'tags' that changed during training—even though their muscle energy function goes back to normal.

See the scientific wording

In young adults, a 12-week period of detraining following 8 weeks of high-intensity interval training maintains hypomethylation at 3,190 differentially methylated positions in skeletal muscle, even after mitochondrial respiration returns to baseline levels.

What the research says

1 study
  1. Study: Human skeletal muscle possesses an epigenetic memory of high intensity interval training affecting mitochondrial function

    After intense training, the muscles 'remember' the workout through chemical tags that stay even when fitness drops. This study found those tags remained after 12 weeks of not exercising, just like the claim says.

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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