Table 1. Mean and peak values of P, La, HR, and VO2 during CE, short HIIE (20 s), and long HIIE (4 min) compared to the values at LTP1, LTP2, and Pmax from IET. Data are means (±SD).
P (W) La (mmol·l-1) HR (b·min-1) VO2 (l·min-1)
Mean Values CE 213.2 (42) 4.14 (1.84) 167 (8.6) 3.32 (.59)
HIIE 20 sec 217.2 (42.2) 5.22 (1.41) 168 (5.7) 3.37 (.58)
HIIE 4x4 min 214.5 (43.1) 9.83* (2.78) 167 (4.9) 3.19 (.53)
at LTP1 130.0 (24.0) 1.73 (0.63) 132 (13.4) 2.30 (.55)
at LTP2 241.3 (36.3) 4.17 (1.33) 169 (4.8) 3.60 (.45)
Peak Values CE 213.2 (42.0) 5.54 (3.45) 177 (10.7) 4.03 (.70)
HIIE 20 sec 340.0 (47.3) * 7.14 (2.48) 181 (6.7) 4.17 (.74)
HIIE 4x4 min 279.2 (51.8) * 12.37* (4.17) 188 (5.7) * 4.22 (.67)
at Pmax IET 340.0 (47.3) 12.17 (2.50) 190 (4.3) 4.33 (.71)
P, power output; La, blood lactate concentration; HR, heart rate; VO2, oxygen uptake; CE, continuous exercise; HIIE, high-intensity interval exercise; LTP1, first lactate turn point; LTP2, second lactate turn point; Pmax, maximum power output; IET, incremental exercise test.* significant (p < 0.05) difference to CE,‡ significant (p < 0.05) difference to short HIIE