Table 1 Oxygen uptake (\( {\dot{\text{V}}}{\text{O}}_{2} \)) kinetic parameters during moderate-intensity constant-load exercise before (Pre), 4 weeks after (Mid), and 8 weeks after (Post) cycle training with (BFR group) or without (CON group) blood flow restriction (BFR).

From: Blood flow restriction accelerates aerobic training-induced adaptation of \( {\dot{\text{V}}}{\text{O}}_{2} \) kinetics at the onset of moderate-intensity exercise

 

Pre

Mid

 

Post

 

Main effect

Interaction

Time

Group

\( {\dot{\text{V}}}{\text{O}}_{2} \),BL

(mL/min)

BFR

315.05

 ± 

13.76

325.23

 ± 

12.92

 

323.43

 ± 

13.04

 

P < 0.01

ηp2 = 0.28

P = 0.10

ηp2 = 0.17

P = 0.25

ηp2 = 0.09

CON

317.70

 ± 

13.79

311.09

 ± 

9.28

 

295.47

 ± 

12.12

 

\(\Delta{\dot{\text{V}}}{\text{O}}{2}\),fast

(mL/min)

BFR

1084.66

 ± 

30.71

1045.53

 ± 

36.17

 

1063.13

 ± 

32.29

 

P = 0.14

ηp2 = 0.13

P = 0.46

ηp2 = 0.04

P = 0.57

ηp2 = 0.03

CON

1151.77

 ± 

44.89

1072.19

 ± 

45.02

 

1074.56

 ± 

37.71

 

\( {\dot{\text{V}}}{\text{O}}_{2} \),fast

(mL/min)

BFR

1399.71

 ± 

42.62

1370.77

 ± 

46.25

 

1386.56

 ± 

33.22

 

P < 0.05

ηp2 = 0.21

P = 0.38

ηp2 = 0.05

P = 0.42

ηp2 = 0.05

CON

1469.47

 ± 

50.92

1383.28

 ± 

49.32

 

1370.03

 ± 

45.54

 

TD

(s)

BFR

7.52

 ± 

6.22

18.35

 ± 

1.40

*

18.50

 ± 

1.26

*

P < 0.01

ηp2 = 0.88

P = 0.24

ηp2 = 0.09

P = 0.25

ηp2 = 0.09

CON

12.08

 ± 

2.24

14.83

 ± 

1.02

18.01

 ± 

1.94

95%CI for τ

(s)

BFR

6.88

 ± 

0.71

6.65

 ± 

0.91

 

6.74

 ± 

0.52

 

P = 0.18

ηp2 = 0.108

P = 0.78

ηp2 = 0.005

P = 0.96

ηp2 = 0.003

CON

6.93

 ± 

0.52

6.50

 ± 

0.60

6.44

 ± 

0.89

  1. \( {\dot{\text{V}}}{\text{O}}_{2} \),BL, baseline of \( {\dot{\text{V}}}{\text{O}}_{2} \); \( \Delta {\dot{\text{V}}}{\text{O}} {2} \),fast, asymptotic amplitude of the fast component (the increase in \( {\dot{\text{V}}}{\text{O}}_{2} \) from the baseline to the asymptote of the fast component); \( {\dot{\text{V}}}{\text{O}}_{2} \),fast, absolute asymptotic amplitude of the fast component (the sum of the baseline and the asymptotic amplitude); TD, delay time; 95% CI for τ, 95% confidence interval for phase II time constant. Statistical analysis was performed using a repeated-measures two-way analysis of covariance followed by Bonferroni's multiple comparisons test. Partial eta squared (ηp2) is the effect size of the interaction and main effects of group and time. Values are expressed as mean ± SE (n = 9).
  2. *Significant difference from pre-training (pre) (P < 0.05).