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Fig. 2 | Sports Medicine - Open

Fig. 2

From: An Investigation into the Relationship Between Heart Rate Recovery in Small-Sided Games and Endurance Performance in Male, Semi-professional Soccer Players

Fig. 2

Distances covered in predefined speed zones (stacked bars) and velocity at a fixed blood lactate concentration of 4 mmol L−1 (black dots) in 14 male soccer players (P1–P14). WAL, walking (0.0–7.2 km/h); JOG, jogging (> 7.2–14.4 km/h); RUN, running distance (> 14.4–19.8 km/h); HIR, high-intensity running distance (> 19.8 km/h); nacc, number of accelerations (> 1.54 m s−2); ØHR, mean heart rate; HRR, heart rate recovery; v4, velocity at 4 mmol L−1 lactate threshold

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