No warm up | Exercise characteristics following warm up | p Values | ||||||
---|---|---|---|---|---|---|---|---|
Slow warm up | Graded warm up | Fast warm up | Slow v no warm up | Graded + fast v slow | Fast v graded | |||
Heart rate (beats/min) | 124 (96 to 144) | 126 (99 to 155) | 130 (102 to 164) | 133 (106 to 177) | 0.33 | 0.37 | 0.30 | |
Rate–pressure product (beats/min × mm Hg × 10−3) | 21.5 (16.8 to 28.8) | 21.9 (16.4 to 31.0) | 24.0 (18.4 to 30.5) | 24.1 (17.5 to 32.2) | 0.45 | 0.000092 | 0.84 | |
Exercise duration (min) | 7.4 (5.0 to 10.5) | 7.8 (6.0 to 10.0) | 8.2 (6.0 to 10.5) | 8.6 (6.5 to 11.0) | 0.25 | 0.0072 | 0.15 | |
ST depression at peak (mV) | 0.126 (0.09 to 0.20) | 0.135 (0.100 to 0.190) | 0.107 (0.040 to 0.170) | 0.096 (0.030 to 0.20) | 0.21 | 0.0026 | 0.23 | |
Increase in ST depression (mV/10 min) | 0.208 (0.099 to 0.610) | 0.188 (0.102 to 0.478) | 0.151 (0.055 to 0.422) | 0.119 (0.025 to 0.337) | 0.24 | 0.0069 | 0.025 | |
Submaximal ST depression (mV) | 0.113 (0.06 to 0.19) | 0.082 (0.020 to 0.150) | 0.077 (0.040 to 0.130) | 0.060 (0.020 to 0.150) | 0.019 | 0.072 | 0.005 |
Values are geometric means (ranges).
Heart rate, rate–pressure product, and submaximal ST depression were measured at the equivalent submaximal stage of exercise.
p Values were computed using random effects regression and test the indicated differences between the characteristics of the graded exercise that followed the various warm up protocols.