Figure 2.
Schematic illustration of the study design. The children reported to the experimenters on four separate days. Days 1 and 2 comprised baseline screening. Day 3 comprised the main experiment, including the intervention, and immediate follow‐up testing. Day 4, 7 d after the main experiment, comprised delayed follow‐up testing. HRpeak, highest heart rate value registered during YYIR1C; HRrest, average heart rate in a 30‐s interval split by the lowest value registered during a 10‐min supine rest period; RF, resting football; SES, socioeconomic status; SRF, small‐sided real football; SWF, small‐sided walking football