Recovery · Limited evidence
Training load does not predict individual injury
Recent training load can provide context for workout decisions, but simple load ratios do not support reliable individual injury prediction.
Systematic review · 1 source · 2 min
What the studies show
- The acute-to-chronic workload ratio has weak and inconsistent predictive value.
- Abrupt spikes in load warrant attention as contextual factors, not alarm bells.
- Disparate injury definitions prevent meaningful comparisons across studies.
How Letz applies it
Letz displays 7-day and 28-day load as a trend and suggests gradual progression; it never displays injury risk.
Who it applies to
Load monitoring in sports and training.
Limits
Methods, populations, and injury definitions vary widely; Letz does not present injury probabilities.
Sources
More in Recovery
- Sleep, recovery, and performanceSleep interventions may be accompanied by improvements in recovery and certain performance outcomes.
- How Much to SleepAdults should sleep 7 to 9 hours per night; sleeping less was associated with more injuries in young athletes.
- Sleep and Fat LossSleeping too little during a deficit shifts fat loss toward lean mass loss and increases intake; extending sleep reduced intake by about 270 kcal per day.
- Monitoring recoveryRecovery should be tracked using simple, frequent measures such as perceived exertion, sleep, and mood; heart rate variability works better as a weekly trend than as a single daily figure.