Table 2.
Changes in cardiovascular parameters following the different whole-body cryotherapy (WBC) conditions and compared with the control condition in days 1 and 5, and for the week
| Day 1 | Day 5 | Mean over week | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| CONT | − 10 °C | − 60 °C | − 110 °C | CONT | − 10 °C | − 60 °C | − 110 °C | CONT | − 10 °C | − 60 °C | − 110 °C | ||
| Systolic BP (mmHg) | Pre | 125.5 ± 11.5 | 121.7 ± 5.8 | 119.7 ± 12.1 | 122.0 ± 9.7 | 121.7 ± 13.5 | 122.7 ± 10.0 | 117.3 ± 12.3 | 122.6 ± 9.9 | 124.1 ± 12.6 | 122.2 ± 7.4 | 119.5 ± 11.2 | 123.1 ± 9.8 |
| Post | 125.6 ± 13.1 | 120.2 ± 8.3 | 118.5 ± 10.7 | 126.5 ± 9.9* | 119.7 ± 10.2 | 120.9 ± 6.5 | 114.7 ± 10.7 | 125.2 ± 10.5 | 123.1 ± 12.0 | 120.8 ± 8.0 | 118.4 ± 10.0 | 126.8 ± 9.5* | |
| Diastolic BP (mmHg) | Pre | 73.0 ± 8.8 | 70.4 ± 7.8 | 72.9 ± 7.8 | 72.6 ± 8.1 | 68.8 ± 8.7 | 71.6 ± 8.3 | 70.9 ± 7.7 | 72.2 ± 8.9 | 71.3 ± 8.6 | 70.0 ± 7.7 | 71.2 ± 6.1 | 71.1 ± 6.9 |
| Post | 73.1 ± 9.8 | 72.0 ± 7.3 | 76.0 ± 8.2 | 78.7 ± 7.5* | 69.0 ± 9.9 | 72.8 ± 7.4 | 72.7 ± 5.4 | 77.3 ± 7.9 | 71.4 ± 9.0 | 71.2 ± 6.9 | 72.8 ± 5.9 | 77.2 ± 7.0* | |
| Heart rate (beats min−1) | Pre | 58.8 ± 7.9 | 57.4 ± 8.8 | 60.0 ± 14.0 | 60.6 ± 9.7 | 60.3 ± 12.1 | 56.9 ± 13.2 | 62.4 ± 14.0 | 60.7 ± 8.4 | 59.2 ± 10.0 | 58.9 ± 10.0 | 61.8 ± 12.5 | 62.4 ± 7.0 |
| Post | 58.0 ± 8.1 | 54.2 ± 9.0* | 50.9 ± 9.6* | 52.4 ± 7.7* | 59.9 ± 11.4 | 54.4 ± 10.8 | 53.9 ± 10.5* | 51.2 ± 5.9* | 58.8 ± 10.1 | 54.7 ± 9.4* | 54.0 ± 9.6* | 53.1 ± 5.7* | |
|
RMSSD (ms) |
Pre | 40.5 ± 30.9 | 57.9 ± 50.3 | 40.9 ± 20.1 | 55.3 ± 43.2 | 44.3 ± 36.9 | 54.8 ± 44.7 | 37.2 ± 21.3 | 47.9 ± 25.9 | 45.1 ± 35.2 | 58.6 ± 39.5 | 40.4 ± 18.2 | 48.2 ± 22.4 |
| Post | 49.8 ± 34.1 | 60.8 ± 75.2 | 60.1 ± 23.5 | 73.0 ± 40.9 | 51.2 ± 38.0 | 50.3 ± 41.0 | 55.1 ± 41.9 | 72.6 ± 37.1 | 51.5 ± 39.1 | 59.9 ± 39.7 | 55.3 ± 25.3* | 68.0 ± 28.7* | |
| HF (ms2) | Pre | 272.9 ± 312.4 | 490.5 ± 622.4 | 453.0 ± 477.4 | 822.5 ± 1098.6 | 605.1 ± 753.4 | 498.1 ± 866.0 | 306.7 ± 282.2 | 656.5 ± 695.1 | 466.3 ± 509.3 | 326.5 ± 439.2 | 398.5 ± 268.3 | 606.7 ± 691.6 |
| Post | 275.8 ± 227.4 | 290.7 ± 445.8 | 598.3 ± 203.8 | 2280.9 ± 2692.3 | 690.0 ± 821.5 | 268.5 ± 401.4 | 694.9 ± 839.4 | 1201.2 ± 1377.8 | 583.8 ± 628.8 | 314.6 ± 385.3 | 663.1 ± 546.1 | 1271.1 ± 1180.5* | |
| LF/HF | Pre | 1.8 ± 2.3 | 3.5 ± 3.8 | 2.3 ± 1.5 | 2.7 ± 2.4 | 1.9 ± 1.3 | 3.0 ± 3.1 | 2.4 ± 3.1 | 2.5 ± 2.9 | 2.1 ± 1.5 | 2.8 ± 2.9 | 2.3 ± 1.6 | 2.5 ± 1.7 |
| Post | 2.1 ± 2.4 | 2.1 ± 1.0 | 1.5 ± 1.0 | 1.6 ± 1.7 | 1.4 ± 1.3 | 2.6 ± 2.0 | 1.4 ± 1.0 | 1.4 ± 1.5 | 2.2 ± 1.9 | 2.2 ± 2.1 | 1.3 ± 1.0* | 1.5 ± 1.7* | |
Data are presented as mean ± SD
Systolic BP Systolic blood pressure, Diastolic BP Diastolic blood pressure, RMSSD root-mean square difference of successive normal R–R intervals, HF High Frequencies power density
*Significantly (p < 0.05) different from pre condition