Acute:Chronic Workload Ratio – Part 2

Sep 4, 2020 | ACADEMY, PEOPLE

Although the injury is a complex and multifactorial phenomenon, numerous studies highlighted how less than optimal workload management represents one of the biggest injury risk factors. Therefore, the possibility of excluding one of these factors is an opportunity that trainers, coaches and sports scientists cannot ignore.
3 ACWR calculation models
There are two main models for calculating the ACWR (fig. 6) [15]:

the “Rolling Average” model (RA) (as explained in Part 1);
the “Exponentially Weighted Moving Average” model (EWMA).

Fig. 6 Differences in the acute:chronic ratio (ACWR) according to the calculation model used (RA vs EWMA) (Williams, 2016) [15].

The main difference between the two models is the “weight” assigned to each training load within the time frame considered. Let’s consider, for instance, Athlete 3 in fig...


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