Effect of asthma and six-months high-intensity interval training on heart rate variability during exercise in adolescents期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

按检索

Effect of asthma and six-months high-intensity interval training on heart rate variability during exercise in adolescents

Authors:	M A McNarry M J Lewis N Wade G A Davies Con Winn W T B Eddolls

Institution:	1. Applied Sports Technology Exercise and Medicine Research Centre, Swansea University, Swansea, UKm.mcnarry@swansea.ac.ukhttps://orcid.org/0000-0003-0813-7477;3. Applied Sports Technology Exercise and Medicine Research Centre, Swansea University, Swansea, UKhttps://orcid.org/0000-0002-6709-9215;4. Swansea University Medical School, Singleton Campus, Swansea University, Swansea, UKhttps://orcid.org/0000-0003-1218-1008;5. Applied Sports Technology Exercise and Medicine Research Centre, Swansea University, Swansea, UK;6. Swansea University Medical School, Singleton Campus, Swansea University, Swansea, UKhttps://orcid.org/0000-0001-8769-2764;7. Applied Sports Technology Exercise and Medicine Research Centre, Swansea University, Swansea, UKhttps://orcid.org/0000-0002-9590-8817

Abstract:	ABSTRACT Little is known regarding the influence of asthma and exercise, and their interaction, on heart rate variability (HRV) in adolescents. Thirty-one adolescents with asthma (13.7±0.9 years; 21.9±3.9 kg·m^?2; 19 boys, 12 girls) and thirty-three healthy adolescents (13.8±0.9 years; 20.3±3.2 kg·m^?2; 16 boys, 17 girls) completed an incremental ramp test and three heavy-intensity constant-work-rate cycle tests. Thirteen adolescents (7 boys, 6 girls; 6 asthma, 7 control) completed six-months high-intensity interval training (HIIT) and were compared to age- and sex-matched controls. Standard time-domain, frequency-domain and non-linear indices of HRV were derived at baseline, three- and six-months. Asthma did not influence HRV at baseline or following HIIT. Total power, low frequency and normalised low frequency power, and sympathovagal balance increased at three-months in HIIT, subsequently declining towards baseline at six-months. Normalised high frequency power was reduced at three-months in both groups, which was sustained at six-months. No effects of HIIT were observed in the time-domain nor in the non-linear indices. HRV was not influenced by asthma, potentially because such derangements are a function of disease progression, severity or duration. HIIT may be associated with a short-term shift towards greater sympathetic predominance during exercise, perhaps caused by physiological overload and fatigue.

Keywords:	Heart rate variability (HRV) youth exercise non-linear children

设为首页 | 免责声明 | 关于勤云 | 加入收藏