Table 3.
Physiological measurements during WHBM and HV conditions.
|
HR
(bpm) |
SpO
2
(%) |
PETO
2
(mmHg) |
PETCO
2
(mmHg) |
VO
2
(ml/min) |
VCO
2
(ml/min] |
VE
(L/min) |
Tidal volume
(ml) |
Respiratory frequency
(1/) |
BH duration
(s) |
||
|---|---|---|---|---|---|---|---|---|---|---|---|
| WHBM condition | HV1 | 110 ± 13.2 | 99 ± 0 | 128 ± 2 | 22 ± 3 | 501 ± 79 | 1344 ± 213 | 61.9 ± 9.2 | 3148 ± 537 | 25 ± 19 | – |
| BH1 | 67 ± 15 | 77 ± 9 | – | – | – | – | – | – | – | 74 ± 16 | |
| HV2 | 108 ± 14 | 99 ± 0 | 128 ± 2 | 20 ± 3 | 673 ± 128 | 1179 ± 181 | 61.2 ± 10.9 | 3135 ± 553 | 20 ± 2 | – | |
| BH2 | 67 ± 1 | 68 ± 10 | – | – | – | – | – | – | – | 101 ± 19 | |
| HV3 | 108 ± 16 | 99 ± 1 | 128 ± 2 | 19 ± 3 | 730 ± 129 | 1112 ± 201 | 61.4 ± 13.3 | 3112 ± 773 | 22 ± 8 | – | |
| BH3 | 66 ± 14 | 60 ± 12 | – | – | – | – | – | – | – | 119 + 26 | |
| Pre-sprint | 80 ± 17 | 62 ± 12 | – | – | – | – | – | – | – | – | |
| Ø | ¥ | ‡ | ¥ | ||||||||
| HV condition | HV1 | 104 ± 12 | 99 ± 1 | 128 ± 2 | 21 ± 3 | 488 ± 89 | 1308 ± 208 | 59.5 ± 12.8 | 2979 ± 672 | 22 ± 7 | – |
| SB1 | 71 ± 12 | 97 ± 1 | 108 ± 6 | 30 ± 2 | 299 ± 68 | 310 ± 83 | 11.6 ± 3.3 | 1065 ± 368 | 12 ± 3 | – | |
| HV2 | 104 ± 13 | 99 ± 1 | 129 ± 2 | 18 ± 2 | 511 ± 124 | 1136 ± 201 | 61.6 ±14.0 | 3072 ± 859 | 23 ± 13 | – | |
| SB2 | 68 ± 9 | 98 ± 1 | 107 ± 7 | 26 ± 3 | 292 ± 75 | 249 ± 87 | 10.8 ± 4.2 | 988 ± 381 | 12 ± 3 | – | |
| HV3 | 102 ± 12 | 99 ± 0 | 129 ± 2 | 17 ± 3 | 542 ± 120 | 1030 ± 161 | 60.9 ± 13.0 | 3130 ± 696 | 20 ± 4 | – | |
| SB3 | 66 ± 11 | 98 ± 1 | 109 ± 8 | 24 ± 3 | 329 ± 82 | 266 ± 95 | 12.8 ± 5.4 | 1144 ± 480 | 13 ± 4 | – | |
| Pre-sprint | 72 ± 13 | 97 ± 2 | 105 ± 10 | 25 ± 4 | 411 ± 111 | 294 ± 116 | 13.5 ± 5.7 | 1076 ± 559 | 15 ± 6 | – | |
| # | † |
SB, spontaneous breathing; HV, hyperventilation; WHBM, Wim Hof breathing method.
Mean values ± standard deviations.
–, Non available data.
Ø
Indicates that, in average, HR significantly increased with the HVs and significantly decreased with the BHs compared to resting values in WHBM condition.
¥
Indicates that values were significantly different between BH1, BH2 and BH3 in WHBM condition.
#
Indicates that values were significantly greater of resting value in HV1, HV2 and HV3 in HV condition.
†
Indicates that pre-sprint value was significantly greater than HV3 in HV condition.
‡
Indicates that values were significantly different between HV1 and HV2, and between HV1 and HV3 in WHBM condition.