Research

Hormonal

Deliberate overreaching via progressive overload training in team sport athletes causes significant reductions in muscular strength, power, and endurance, primarily driven by increased muscle damage and a shift toward a catabolic state.

If you are feeling consistently fatigued and your performance is dropping despite hard training, you may be overreached. The solution is not to train harder, but to reduce your training volume and intensity for about a week (tapering). This allows your body to recover from muscle damage and hormonal imbalances, often resulting in improved strength, power, and endurance once you return to normal training.

GoodSupportsMEDIUM confidence
These results suggest that muscular strength, power and endurance were reduced following the overload training, indicating a state of overreaching. The most likely explanation for the decreased performance is increased muscle damage via a decrease in the anabolic-catabolic balance.
Aaron J. Coutts et al. · International Journal of Sports Medicine · 2007

Why this rating

Small sample size (n=7) but controlled prospective design with multiple biochemical and performance markers.

Source

Changes in Selected Biochemical, Muscular Strength, Power, and Endurance Measures during Deliberate Overreaching and Tapering in Rugby League Players

Aaron J. Coutts et al. · International Journal of Sports Medicine · 2007

DOI 10.1055/s-2006-924145

crossover · n=7Cited 281×
Read the paper
DOI resolved against Crossref · corpus check 2026-06-10

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