Physiological responses and energy cost of walking on the Gait Trainer with and without body weight support in subacute stroke patients

Delussu, Anna Sofia; Morone, Giovanni; Iosa, Marco; Bragoni, Maura; Traballesi, Marco; Paolucci, Stefano

doi:10.1186/1743-0003-11-54

Journal of NeuroEngineering and Rehabilitation

Table 2 Cardiac and metabolic parameters in the four observed walking conditions

From: Physiological responses and energy cost of walking on the Gait Trainer with and without body weight support in subacute stroke patients

Parameter	Group	Overground	GT-BWS 0%	GT-BWS 30%	GT-BWS 50%	ANOVA (p-value)
						Walking conditions	Group	Interaction
Rest RER	PG	0.77 ± 0.09	0.73 ± 0.03	0.73 ± 0.11	0.72 ± 0.07	0.018	0.635	0.944
Rest RER	CG	0.79 ± 0.05	0.74 ± 0.07	0.74 ± 0.04^*	0.75 ± 0.03	0.018	0.635	0.944
SS RER	PG	0.78 ± 0.04^§	0.86 ± 0.07	0.79 ± 0.07	0.76 ± 0.05^§	0.012	0.379	0.026
SS RER	CG	0.76 ± 0.06	0.77 ± 0.06	0.77 ± 0.06	0.77 ± 0.08	0.012	0.379	0.026
Rest HR (b/min)	PG	69 ± 8	80 ± 17	66 ± 8	73 ± 12	0.067	0.722	0.211
Rest HR (b/min)	CG	67 ± 8	71 ± 12	70 ± 11	72 ± 11	0.067	0.722	0.211
SS HR (b/min)	PG	90 ± 12	103 ± 24	75 ± 5^*	86 ± 18	0.005	0.951	0.366
SS HR (b/min)	CG	91 ± 16	95 ± 20	85 ± 15	82 ± 9	0.005	0.951	0.366
EI (%)	PG	58.7 ± 10	64.7 ± 16	49.2 ± 9*	53.7 ± 11	0.005	0.763	0.359
EI (%)	CG	54 ± 11	58.4 ± 14	51.8 ± 11	50 ± 6	0.005	0.763	0.359
Rest V’E (l/min)	PG	8 ± 2	8 ± 2	8 ± 2	8 ± 2	0.177	0.011	0.100
Rest V’E (l/min)	CG	11 ± 2	11 ± 2	12 ± 2	13 ± 2	0.177	0.011	0.100
SS V’E (l/min)	PG	21 ± 6	22 ± 7	14 ± 3^*§	15 ± 5	0.001	0.032	0.688
SS V’E (l/min)	CG	26 ± 5	28 ± 9	23 ± 4	21 ± 5^*	0.001	0.032	0.688
Rest V’O₂ (ml/kg/min)	PG	2.8 ± 0.9	3.2 ± 1.2	3 ± 1	3 ± 1.5	0.160	0.179	0.175
Rest V’O₂ (ml/kg/min)	CG	3.7 ± 0.7	3.4 ± 0.7	4 ± 1	4 ± 1.3	0.160	0.179	0.175
SS V’O₂ (ml/kg/min)	PG	11.5 ± 2.8	10.7 ± 2.9	9 ± 3.3^*§	8 ± 3.2^*§	<0.001	0.145	0.666
SS V’O₂ (ml/kg/min)	CG	12.7 ± 2	13.8 ± 4.1	11 ± 1.8	10 ± 1.9^*	<0.001	0.145	0.666
ECW (ml/kg/m)	PG	0.69 ± 0.4	0.42 ± 0.1	0.34 ± 0.1^§	0.31 ± 0.1^§	0.112	0.441	0.002
ECW (ml/kg/m)	CG	0.21 ± 0.0	0.52 ± 0.1^*	0.43 ± 0.1^*	0.36 ± 0.1^*	0.112	0.441	0.002
Speed (m/min)	PG	20.8 ± 8.4	25.5 ± 2.9	25.0 ± 2.9	25.1 ± 2.8	<0.001	<0.001	<0.001
	CG	60.0 ± 7.4^§	26.1 ± 2.6^*	25.6 ± 1.9^*	27.0 ± 3.7^*

Legenda. BWS: Body-weight Support; PG: patient group; CG: control group; Rest RER: respiratory exchange ratio at rest; SS RER: respiratory exchange ratio at steady state; HR (beats/min): heart rate at rest; SS HR (beats/min): heart rate at steady state; EI: exercise intensity; Rest V’E (l/min): pulmonary ventilation at rest; SS V’E (l/min): pulmonary ventilation at steady state; Rest V’O₂ (ml/kg/min): oxygen consumption at rest; SS V’O₂ (ml/kg/min): oxygen consumption at steady state; ECW (ml/kg/m): energy cost of walking; speed (m/min): walking speed.
Bold characters indicate significant difference of post-hoc analysis: ^*with respect to overground, ^§with respect to GT-BWS0%.

Back to article page

ISSN: 1743-0003

Contact us

Submission enquiries: journalsubmissions@springernature.com