Glossary: Injury Risk

Injury risk is an abstract value calculated from the workload ratio that warns against changing the total training load too much. The underlying formula is based on studies that have examined this very relationship.

Examples

• A:C = 0.00 ⇒ x2.35
• A:C = 0.25 ⇒ x1.55
• A:C = 0.50 ⇒ x1.00 – baseline
• A:C = 0.75 ⇒ x0.71
• A:C = 1.00 ⇒ x0.66
• A:C = 1.25 ⇒ x0.86
• A:C = 1.50 ⇒ x1.31
• A:C = 1.75 ⇒ x2.01
• A:C = 2.00 ⇒ x2.96
• A:C = 2.25 ⇒ x4.16
• A:C = 2.50 ⇒ x5.61

Like all TRIMP-related calculations, these calculations are based only on duration and heart rate. Different sports and alternative training can therefore not be considered.

See also

• A:C
• TRIMP
• ATL
• CTL
• TSB

References

1. Blanch, P., Gabbett, T.: Has the athlete trained enough to return to play safely? The acute:chronic workload ratio permits clinicians to quantify a player's risk of subsequent injury. British journal of sports medicine, volume 50, issue 8, pp. 471-475, 2016, doi: 10.1136/bjsports-2015-095445
2. Gabbett, T.: The training-injury prevention paradox: Should athletes be training smarter and harder?, British journal of sports medicine, volume 50, issue 5, pp. 273-280, 2016, doi: 10.1136/bjsports-2015-095788

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