Table 2. HR kinetics parameters during two repeated 1000 m bouts on the rowing ergometer, separated by 1.5 min (INT1.5), 3 min (INT3) and 6 min (INT6). Baseline: HR before the start of each bout; A1: amplitude and 𝜏1: time constant of the primary component, respectively. Data are means (SE). Bout Baseline (b·min-1) A1 (b·min-1) 𝜏1 (s) INT1.5 1 106 (6) 78 (6) 12.6 (0.5) 2 143 (7)* 46 (6)* 11.8 (1.2) INT3 1 105 (9) 79 (7) 12.9 (0.9) 2 131 (5)* 58 (4)* 14.6 (1.6) INT6 1 105 (8) 81 (7) 13.3 (1.0) 2 125 (3)* 62 (4)* 16.9 (1.5) * p < 0.05 compared with bout 1.