The Claim

Male triathletes experiencing functional overreaching exhibit a 70% incidence of infection symptoms during periods of training overload and tapering, compared to 20% in acutely fatigued athletes and 10% in non-overreached control athletes, suggesting a strong association between functional overreaching and increased risk of illness.

Source: Functional overreaching: the key to peak performance during the taper?

What the research says

Supports is higher

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

Supports
54score
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.

Correlation
1 study reviewed
In plain English

Triathletes who push their training too hard without enough recovery are way more likely to get sick—7 out of 10 had infection symptoms, compared to just 2 out of 10 who were tired but not overtrained, and 1 out of 10 in rested athletes.

See the scientific wording

Functionally overreached trained male triathletes have a 70% incidence of infection symptoms during overload and taper periods, compared to 20% in acutely fatigued and 10% in control athletes, indicating a strong association between overreaching and increased illness risk.

What the research says

1 study
  1. Study: Functional overreaching: the key to peak performance during the taper?

    The study found that triathletes who were pushed too hard in training got sick much more often than those who weren’t, which matches what 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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