Table 2. Heart rate responses and cardiovascular load variability during 3v3 and 5v5 small-sided games.

Format	HRmean Bout 1 (bpm)	HRmean Bout 2 (bpm)	HRmean Bout 3 (bpm)	HRmean Bout 4 (bpm)	HRmean overall (bpm)	CV% (mean ± SD)
3v3	178.85 ± 2.88	180.88 ± 3.02	181.58 ± 2.88	182.17 ± 3.33	180.87 ± 2.79	1.97 ± 0.81
5v5	170.57 ± 3.54	173.15 ± 3.87	174.93 ± 3.69	175.68 ± 3.82	173.58 ± 3.56	2.61 ± 1.21
p-value	<0.001	<0.001	<0.001	<0.001	<0.001	0.002

HR: heart rate; CV: coefficient of v