Table II.
Comparison of baseline and post-intervention outcomes of treadmill exercise stress tests in both groups
| Variable | Study group (n = 20) | Control group (n = 21) | ||||
|---|---|---|---|---|---|---|
| Baseline | After intervention |
P-value | Baseline | After intervention |
P-value | |
| METs | 4.4 (1.4) | 6.3 (1.3) | < 0.001 | 5.0 (1.4) | 6.5 (1.4) | < 0.001 |
| Oxygen uptake [ml/kg/min] | 15.4 (4.9) | 22.1 (4.6) | < 0.001 | 17.5 (4.9) | 22.8 (4.9) | < 0.001 |
| Duration [min] | 6 (2) | 8 (2) | < 0.001 | 7 (2) | 8 (2) | < 0.001 |
| RPE | 14 (1) | 14 (1) | NS | 15 (1) | 15 (1) | NS |
| Rest SBP [mm Hg] | 113 (14) | 113 (12) | NS | 111 (13) | 111 (14) | NS |
| SBP at peak exercise load in baseline test [mm Hg] |
162 (21) | 145 (24) | < 0.001 | 153 (14) | 153 (19) | NS |
| Peak SBP [mm Hg] | 162 (21) | 163 (25) | NS | 153 (14) | 164 (21) | 0.005 |
| Rest DBP [mm Hg] | 71 (8) | 70 (7) | NS | 68 (8) | 68 (8) | NS |
| Peak DBP [mm Hg] | 87 (6) | 86 (9) | NS | 84 (5) | 87 (7) | 0.03 |
| Rest HR [mm Hg] | 86 (6) | 79 (9) | 0.004 | 82 (14) | 77 (14) | NS |
| Peak HR [mm Hg] | 113 (11) | 120 (14) | 0.03 | 113 (17) | 118 (18) | 0.005 |
| HR at peak exercise load in baseline test [bpm] |
113 (11) | 104 (15) | < 0.001 | 113 (17) | 109 (21) | NS |
| Peak HR – % of HRmax | 73 (8) | 76 (9) | 0.04 | 72 (12) | 75 (13) | 0.01 |
| HR reserve [bpm] | 28 (10) | 41 (10) | < 0.001 | 31 (15) | 41 (13) | < 0.001 |
| HR recovery at 1 min [bpm] | 7 (4) | 17 (14) | < 0.001 | 12 (5) | 14 (6) | NS |
| HR recovery at 3 min [bpm] | 29 (8) | 40 (14) | < 0.001 | 32 (12) | 37 (10) | 0.003 |
| HR recovery at 4 min [bpm] | 29 (7) | 40 (14) | < 0.001 | 32 (12) | 39 (12) | < 0.001 |
| Rest DP | 9 710 (1 215) | 8 972 (1 315) | NS (0.0505) | 9 095 (1 606) | 8 559 (1 769) | NS |
| Peak DP | 18 469 (3 619) | 19 620 (4 042) | NS | 17 223 (2 827) | 19 418 (3 800) | 0.001 |
| DP at peak exercise load in baseline test | 18 469 (3 619) | 15 151 (4 364) | < 0.001 | 17 223 (2 827) | 16 746 (3 858) | NS |
Data are presented as mean (SD). DBP – diastolic blood pressure, DP – double product, HR – heart rate, MET – metabolic equivalent, RPE – rating of perceived exertion, SBP – systolic blood pressure.