Table 2.
Within subject relationships between five minute treadmill time-trial performance (5TTT) and rHRI determined from 4, 3, 2 and 1 minute periods of analysis.
| Period of rHRI analysis | rHRI assessment | B-Coefficient | 95% confidence interval for B-Coefficient | P value |
|---|---|---|---|---|
| 4 min | rHRI10.5 km/h | −1.33 | −5.31 to 2.65 | 0.51 |
| rHRI13 km/h | −2.34 | −10.28 to 5.60 | 0.56 | |
| rHRI8 km/h | −5.37 | −10.60 to −0.14 | 0.04 | |
| rHRI8–13 km/h | −9.48 | −19.62 to 0.66 | 0.07 | |
| 3 min | rHRI10.5 km/h | −1.11 | −5.67 to 3.45 | 0.63 |
| rHRI13 km/h | −1.72 | −9.15 to 5.70 | 0.65 | |
| rHRI8 km/h | −5.34 | −10.36 to −0.33 | 0.04 | |
| rHRI8–13 km/h | −11.44 | −21.55 to −1.33 | 0.03 | |
| 2 min | rHRI10.5 km/h | −0.89 | −5.63 to 3.86 | 0.71 |
| rHRI13 km/h | −0.14 | −7.01 to 6.74 | 0.97 | |
| rHRI8 km/h | −5.54 | −10.68 to −0.40 | 0.04 | |
| rHRI8–13 km/h | −4.78 | −13.08 to 3.53 | 0.26 | |
| 1 min | rHRI10.5 km/h | −0.09 | −3.52 to 3.34 | 0.96 |
| rHRI13 km/h | −0.98 | −5.37 to 3.41 | 0.66 | |
| rHRI8 km/h | −4.53 | −9.15 to 0.07 | 0.05 | |
| rHRI8–13 km/h | −11.62 | −19.86 to −3.38 | 0.006 |
min minute(s), rHRI10.5 km/h maximal rate of heart rate increase in response to the 10.5 km/h treadmill running speed, rHRI13km/h maximal rate of heart rate increase in response to the 13 km/h treadmill running speed, rHRI8km/h maximal rate of heart rate increase in response to the 8 km/h treadmill running speed, rHRI10km/h maximal rate of heart rate increase in response to the 10 km/h running speed, rHRI13km/h maximal rate of heart rate increase in response to the 13 km/h running speed, rHRI8–13km/h maximal rate of heart rate increase in response to the transition from 8 to 13 km/h.