Effects of short-term repeated sprint training in hypoxia or with blood flow restriction on response to exercise

Table 4 Cardiorespiratory responses at the end of the anaerobic cycling test

	HG	BFRG	BFRrG		CG		Time Main effect	Group Main effect	*Interaction*
\(\dot{\boldsymbol{V}}\boldsymbol{Epeak}\) (L·min⁻¹)
Pre	183.1 ± 18.1	163.4 ± 23.7	146.7 ± 29.0	b	165.3 ± 26.2		p = 0.028*	p = 0.028*	p = 0.22
Post	182.9 ± 16.9	174.5 ± 21.5	159.7 ± 19.8	b	165.1 ± 19.1		p = 0.028*	p = 0.028*	p = 0.22
\(\dot{\boldsymbol{V}}\boldsymbol{E}\)/\(\dot{\boldsymbol{V}}\mathbf{O}\)₂
Pre	37.3 ± 2.0	38.7 ± 3.1	35.6 ± 4.8		38.0 ± 3.4		p = 0.36	p = 0.20	p = 0.91
Post	37.7 ± 3.1	39.1 ± 3.1	36.5 ± 3.6		37.9 ± 2.9		p = 0.36	p = 0.20	p = 0.91
\(\dot{\boldsymbol{V}}\boldsymbol{E}\)/\(\dot{\boldsymbol{V}}\mathbf{CO}\)₂
Pre	32.5 ± 4.5	30.7 ± 3.3	29.8 ± 3.9		30.6 ± 2.3		p < 0.001*	p = 0.09	p = 0.85
Post	34.5 ± 2.4	32.7 ± 3.2	31.4 ± 3.6		31.6 ± 1.9		p < 0.001*	p = 0.09	p = 0.85
RER
Pre	1.15 ± 0.09	1.27 ± 0.08	1.20 ± 0.09	b	1.24 ± 0.06	b	p < 0.001*	p = 0.002*	p = 0.70
Post	1.09 ± 0.09	1.20 ± 0.05	1.16 ± 0.05	b	1.20 ± 0.06	b	p < 0.001*	p = 0.002*	p = 0.70
HRpeak (bpm)
Pre	181.6 ± 15.3	179.0 ± 8.1	180.2 ± 9.8		175.4 ± 18.0		p = 0.72	p = 0.66	p = 0.98
Post	180.7 ± 13.0	178.6 ± 9.7	180.6 ± 10.1		173.6 ± 16.6		p = 0.72	p = 0.66	p = 0.98

Data are shown as mean ± standard deviation
HG (N = 10) training in hypoxia, BFRG (N = 10) training with blood flow restriction during exercise, BFRrG (N = 10) training with blood flow restriction during recovery, CG (N = 9) control group with normal training, Time main effect difference between pre- and post-tests, Group main effect difference between exercise modalities, \(\dot{V} Epeak\) peak minute ventilation, \(\dot{V}{O}_2\) oxygen consumption, \(\dot{V}{CO}_2\) carbon dioxide elimination, RER respiratory exchange ratio, HRpeak peak heart frequency
*Significant main effect
^bSignificantly different from HG

ISSN: 1880-6805