Table 3

Independent variables used in workload–injury investigations

Workload measureN
Internal
 sRPE15
 Heart rate zones2
External
 Balls bowled or pitched5
 GPS/accelerometry10
 Hours6
  • If articles included more than one type of workload variable they are counted more than once. sRPE scores could be the original Foster scale or modified. sRPE is calculated as the product of session intensity on a 1–10 Borg Scale and activity duration in minutes.

  • GPS, global positioning system; sRPE, session-rating of perceived exertion.