Table 4. Respiratory, metabolic and perceptual responses during exercise in the CR_F trial at exhaustion, in the CR trial at the iso-time point, and in the CR trial at exhaustion (=9). Data are means (±SD).
CR_F Trial at Exhaustion
CR Trial at Iso-time Point
CR Trial at Exhaustion
VE (l·min-1)
123.9 (14.2)
120.2 (14.7)
127.3 (16.0)
VT (l)
2.01 (.42
2.07 (.42)
2.06 (.42)
fb (breath·min-1)
63.8 (12.0
60.3 (13.4)
64.2 (13.2)
Ti/Ttot (%)
51.0 (2.9
50.0 (3.8)
50.3 (3.2)
VO2 (ml·kg-1·min-1)
58.2 (5.8
58.3 (5.8)
59.6 (4.1)
HR (beats·min-1)
177.4 (6.8) *
179.2 (7.9) *
182.6 (7.6)
RPB
8.7 (1.4)
6.9 (1.4) *
9.1 (.8)
RPE
18.9 (1.3)
16.6 (1.8) *†
18.8 (1.2)
* Significantly different from the CR trial at exhaustion (p < 0.05).
† Significantly different from the CR_F trial at exhaustion (p < 0.05).