Table 2.
Cardiorespiratory responses to HIIE with different intensities.
HIIE70%
HIIE85%
HIIE100%
Peak power (W)
87.4 ± 12.2
#
†
106.1 ± 14.8
*
†
124.8 ± 17.4
*
#
Average HR (bpm)
141 ± 8
#
†
157 ± 5
*
160 ± 4
*
Average HR (% HRmax)
73 ± 5
#
†
82 ± 3
*
83 ± 4
*
Peak HR (bpm)
161 ± 6
#
†
181 ± 4
*
†
184 ± 2
*
#
Peak HR (%HRmax)
83 ± 4
#
†
94 ± 4
*
†
96 ± 6
*
#
Average
V̇
O
2
(L·min
-1
)
0.86 ± 0.10
#
†
0.99 ± 0.08
*
1.03 ± 0.08
*
Average
V̇
O
2
(%
V̇
O
2max
)
51 ± 7
#
†
60 ± 5
*
62 ± 8
*
Peak
V̇
O
2
(L·min
-1
)
1.21 ± 0.19
#
†
1.35 ± 0.07
*
1.38 ± 0.04
*
Peak
V̇
O
2
(%
V̇
O
2max
)
73 ± 16
#
†
81 ± 10
*
83 ± 15
*
† Significant difference between 100%HIIE (p < 0.01).
# Significant difference between 85%HIIE (p < 0.01).
* Significant difference between 70%HIIE (p < 0.01).
Values are reported as mean ± standard deviation. Abbreviations: HR, heart rate; HR
max
, maximal heart rate; V̇O
2
, oxygen uptake: V̇O
2max
, maximal oxygen uptake; %V̇O
2max
, percentage of maximal oxygen uptake; VT, ventilatory threshold.