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. 2020 Dec 21;15(12):e0244412. doi: 10.1371/journal.pone.0244412

Fig 3. Submaximal shuttle-run test.

Fig 3

Players run 12.8 m shuttles for approximately 1, 1, and 3 min at 8.2 km/h, 9.6 km/h, and 11.0 km/h, respectively, followed by 1 min of standing recovery. HRex: average heart rate during the last 30 s of exercise; HRR: heart rate recovery during the 1-min recovery period; RPE: rating of perceived exertion (6–20 scale) at exercise cessation.