Effects of 12-Week Home-based Resistance Training on Peripheral Muscle Oxygenation in Children With Congenital Heart Disease: A CHAMPS Study.

Autor: Lahti DS; College of Kinesiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada., Pockett C; Division of Cardiology, Department of Pediatrics, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada., Boyes NG; College of Kinesiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada., Bradley TJ; Division of Cardiology, Department of Pediatrics, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada., Butcher SJ; School of Rehabilitation Science, College of Medicine, University of Saskatchewan, Saskatoon, Saskatchewan, Canada., Wright KD; Department of Psychology, University of Regina, Regina, Saskatchewan, Canada., Erlandson MC; College of Kinesiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada., Tomczak CR; College of Kinesiology, University of Saskatchewan, Saskatoon, Saskatchewan, Canada.
Jazyk: angličtina
Zdroj: CJC pediatric and congenital heart disease [CJC Pediatr Congenit Heart Dis] 2022 Sep 08; Vol. 1 (5), pp. 203-212. Date of Electronic Publication: 2022 Sep 08 (Print Publication: 2022).
DOI: 10.1016/j.cjcpc.2022.08.002
Abstrakt: Background: A hallmark feature of children with congenital heart disease (CHD) is exercise intolerance. Whether a home-based resistance training intervention improves muscle oxygenation (as measured by tissue oxygenation index, TOI) and exercise tolerance ( V ˙ O 2 reserve) during aerobic exercise in children with CHD compared with healthy children is unknown.
Methods: We report findings for 10 children with CHD (female/male: 4/6; mean ± standard deviation age: 13 ± 1 years) and 9 healthy controls (female/male: 5/4; age: 12 ± 3 years). Children with CHD completed a 12-week home-based exercise programme in addition to 6 in-person sessions. Exercise tolerance was assessed with a peak exercise test. Vastus lateralis TOI was continuously sampled during the peak V ˙ O 2 test via near-infrared spectroscopy.
Results: There was a medium effect (Cohen's d  = 0.67) of exercise training on lowering TOI at peak exercise (pre: 30 ± 16 %total labile signal vs post: 20 ± 13 % total labile signal; P  = 0.099). Exercise training had a small effect (Cohen's d  = 0.23) on increasing V ˙ O 2 reserve by 1.6 mL/kg/min (pre: 27.2 ± 5.7 mL/kg/min vs post: 29.4 ± 8.8 mL/kg/min; P  = 0.382). There was also a small effect (Cohen's d  = 0.27) of exercise on peak heart rate (pre: 175 ± 23 beats/min vs post: 169 ± 21 beats/min; P  = 0.18). TOI, V ˙ O 2 reserve, and heart rate were generally lower than healthy control participants.
Conclusions: Our findings indicate that home-based resistance training may enhance skeletal muscle oxygen extraction (lower TOI) and subsequently V ˙ O 2 reserve in children with CHD.
(© 2022 The Author(s).)
Databáze: MEDLINE
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