Table 2.
Selected physiological variables at rest, handgrip exercise and post-exercise ischaemia during the free-flow and graded partial flow restriction experimental trials
| Rest | Ex | Ex FF/+80 | Ex FF/+100 | Ex FF/+120 | PEI | |
|---|---|---|---|---|---|---|
| Systolic BP (mmHg) | ||||||
| FF | 127 ± 4 | 145 ± 4* | 146 ± 4* | 148 ± 5* | 152 ± 5*$ | 140 ± 4*§ |
| PFR | 126 ± 4 | 145 ± 5* | 149 ± 5* | 153 ± 5*†‡ | 162 ± 6*†‡$# | 152 ± 5*# |
| Diastolic BP (mmHg) | ||||||
| FF | 63 ± 2 | 72 ± 2* | 72 ± 2* | 73 ± 2* | 75 ± 2* | 68 ± 2*†‡$§ |
| PFR | 60 ± 2# | 69 ± 2*# | 71 ± 2*† | 74 ± 2*†‡ | 79 ± 3*†‡$# | 72 ± 3*# |
| RRI (ms) | ||||||
| FF | 1024 ± 44 | 927 ± 48* | 920 ± 47* | 916 ± 48* | 903 ± 48* | 1034 ± 49 †‡$§ |
| PFR | 1016 ± 40 | 906 ± 39# | 888 ± 36*† | 858 ± 36*† | 831 ± 37*†‡$ | 1009 ± 54*†‡$# |
| RMSSD (ms) | ||||||
| FF | 59 ± 6 | 60 ± 8 | 62 ± 9 | 67 ± 9 | 67 ± 9 | 61 ± 7 |
| PFR | 56 ± 6 | 58 ± 8 | 58 ± 9 | 56 ± 8 | 57 ± 9 | 63 ± 8 |
Values are mean ± SEM. FF, free flow; PFR, partial flow restriction; BP, blood pressure; RRI, R-R interval; RMSSD, square root of the mean of the sum of successive differences in R-R interval; Ex, rhythmic handgrip exercise at 35% of maximum voluntary contraction; Ex FF/+80, Ex FF/+100 and Ex FF/+120, handgrip exercise with or without upper arm cuff inflation to 80, 100 and 120 mmHg, respectively; PEI, post-exercise ischaemia.
P < 0.05 vs. rest of corresponding trial
P < 0.05 vs. Ex of corresponding trial
P < 0.05 vs. Ex FF/+80 of corresponding trial
P < 0.05 vs. Ex FF/+100 of corresponding trial
P < 0.05 vs. Ex FF/+120 of corresponding trial
P < 0.05 vs. FF trial at corresponding time point.