Table 2 Means and standard deviations of mean heart rate (HR_mean) and natural logarithm of root mean square of the successive differences in successive heart beats (Ln-RMSSD) for the NBFR and BFR groups during treadmill walking (A), in the pre-test and post-test (B)

HR_mean (beat/min)

105.0 ± 14.2

100.1 ± 12.3^*

t₂₆ = − 4.124, p < 0.001

Ln-RMSSD (ms)

2.56 ± 0.49

2.80 ± 0.45^†

t₂₆ = 2.186, p = 0.038

HR_mean (beat/min)

NBFR

76.5 ± 9.8

92.2 ± 14.1

21.17 ± 20.50%

t₂₆ = − 2.548, p = 0.017

BFR

76.4 ± 8.6

83.1 ± 15.2

9.05 ± 17.04%^*

Ln-RMSSD (ms)

NBFR

2.75 ± 0.46

2.73 ± 0.36

1.72 ± 23.61%

t₂₆ = 3.485, p = 0.002

BFR

2.77 ± 0.50

3.21 ± 0.35

18.89 ± 17.59%^††