Fitness
Acute-Chronic Workload Ratio
Acute-chronic workload ratio compares recent to chronic training load to spot spike injury risk—often when the ratio exceeds ~1.5 in sports models.
Acute-chronic workload ratio compares recent training load—often seven days—to chronic load—often twenty-eight days—to flag injury risk when spikes exceed roughly 1. 5 in some sports models.
Use consistent metrics: time, RPE, or TSS. It informs decisions, not dictates them.
Common questions
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What ACWR is considered risky?
Many team sports watch ratios above about 1.5 as higher risk, but context matters—fitness, sleep, and mechanics matter too. Never change load on one number alone.
Related terms
Put Acute-Chronic Workload Ratio into practice
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