Sportmedizin im Wandel

Objective: Assessment of heart rate variability (HRV) is increasingly used to evaluate dynamic features of cardiovascular (cv) control mechanisms and offers a unique insight into autonomic cv modulation in health and diseases. Regular exercise is known to positively influence hemodynamics and variou...

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Autores principales:	Ketelhut SR, Ketelhut S, Riedel S, Willich S, Meyer-Sabellek W, Müssig K, 5, 6, Ketelhut K
Formato:	article
Lenguaje:	DE EN
Publicado:	Dynamic Media Sales Verlag 2017
Materias:	Sports medicine RC1200-1245
Acceso en línea:	https://doaj.org/article/360846fa5b964a4abc7b316575f59de0
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spelling	oai:doaj.org-article:360846fa5b964a4abc7b316575f59de02021-11-16T19:01:41ZSportmedizin im Wandel0344-59252510-526410.5960/dzsm.2017.301https://doaj.org/article/360846fa5b964a4abc7b316575f59de02017-11-01T00:00:00Zhttps://www.germanjournalsportsmedicine.com/archive/archive-2017/heft-11/auswirkung-einer-moderaten-intervallbelastung-auf-die-herzfrequenzvariabilitaet-bei-grundschulkindern/https://doaj.org/toc/0344-5925https://doaj.org/toc/2510-5264Objective: Assessment of heart rate variability (HRV) is increasingly used to evaluate dynamic features of cardiovascular (cv) control mechanisms and offers a unique insight into autonomic cv modulation in health and diseases. Regular exercise is known to positively influence hemodynamics and various cv risk factors. The present study aimed to evaluate the efficacy of a nine-month moderate interval-training program on HRV in elementary school children.Methods: 68 students (aged 8.60.5 years, 49% girls, BMI 17.92.5kg/m2), were randomized into intervention (IG) (n=34) and control (KG) (n=34) groups. Both IG and KG had regular physical education classes (PE) (3x45min/week). During a nine-month intervention period IG,received an additional exercise intervention program (2x45min/week). Time and frequency domain measures of HRV were obtained before and after the intervention program.Results: In contrast to KG, IG showed positive modifications of HRV parameters. After the intervention, High FrequencyPower (HF-Power) increased by 7.5% (p&lt;0.001) and Low Frequency-Power (LF-Power) decreased by 3.6% (p&lt;0.026) in IG. After the nine-month intervention, the IG and KG showed differences in HF-Power (p&lt;0.001) and LF-Power (p&lt;0.003) alterations.Conclusion: In elementary school children, an additional regular moderate intensity interval training had favorable effects on measures of cardiac autonomic control due to increasing cardiac vagal activity. Therefore, exercise time in children should be increased as early as possible to positively influence cardiac autonomic function and potentially reduce cardiovascular morbidity in later life.KEY WORDS: Heart Rate Variability, Autonomic Modulation, Exercise Intervention, Elementary School ChildrenKetelhut SRKetelhut SRiedel SWillich SMeyer-Sabellek WMüssig K56Ketelhut KDynamic Media Sales VerlagarticleSports medicineRC1200-1245DEENDeutsche Zeitschrift für Sportmedizin, Vol 68, Iss 11 (2017)
institution	DOAJ
collection	DOAJ
language	DE EN
topic	Sports medicine RC1200-1245
spellingShingle	Sports medicine RC1200-1245 Ketelhut SR Ketelhut S Riedel S Willich S Meyer-Sabellek W Müssig K 5 6 Ketelhut K Sportmedizin im Wandel
description	Objective: Assessment of heart rate variability (HRV) is increasingly used to evaluate dynamic features of cardiovascular (cv) control mechanisms and offers a unique insight into autonomic cv modulation in health and diseases. Regular exercise is known to positively influence hemodynamics and various cv risk factors. The present study aimed to evaluate the efficacy of a nine-month moderate interval-training program on HRV in elementary school children.Methods: 68 students (aged 8.60.5 years, 49% girls, BMI 17.92.5kg/m2), were randomized into intervention (IG) (n=34) and control (KG) (n=34) groups. Both IG and KG had regular physical education classes (PE) (3x45min/week). During a nine-month intervention period IG,received an additional exercise intervention program (2x45min/week). Time and frequency domain measures of HRV were obtained before and after the intervention program.Results: In contrast to KG, IG showed positive modifications of HRV parameters. After the intervention, High FrequencyPower (HF-Power) increased by 7.5% (p&lt;0.001) and Low Frequency-Power (LF-Power) decreased by 3.6% (p&lt;0.026) in IG. After the nine-month intervention, the IG and KG showed differences in HF-Power (p&lt;0.001) and LF-Power (p&lt;0.003) alterations.Conclusion: In elementary school children, an additional regular moderate intensity interval training had favorable effects on measures of cardiac autonomic control due to increasing cardiac vagal activity. Therefore, exercise time in children should be increased as early as possible to positively influence cardiac autonomic function and potentially reduce cardiovascular morbidity in later life.KEY WORDS: Heart Rate Variability, Autonomic Modulation, Exercise Intervention, Elementary School Children
format	article
author	Ketelhut SR Ketelhut S Riedel S Willich S Meyer-Sabellek W Müssig K 5 6 Ketelhut K
author_facet	Ketelhut SR Ketelhut S Riedel S Willich S Meyer-Sabellek W Müssig K 5 6 Ketelhut K
author_sort	Ketelhut SR
title	Sportmedizin im Wandel
title_short	Sportmedizin im Wandel
title_full	Sportmedizin im Wandel
title_fullStr	Sportmedizin im Wandel
title_full_unstemmed	Sportmedizin im Wandel
title_sort	sportmedizin im wandel
publisher	Dynamic Media Sales Verlag
publishDate	2017
url	https://doaj.org/article/360846fa5b964a4abc7b316575f59de0
work_keys_str_mv	AT ketelhutsr sportmedizinimwandel AT ketelhuts sportmedizinimwandel AT riedels sportmedizinimwandel AT willichs sportmedizinimwandel AT meyersabellekw sportmedizinimwandel AT mussigk sportmedizinimwandel AT 5 sportmedizinimwandel AT 6 sportmedizinimwandel AT ketelhutk sportmedizinimwandel
_version_	1718426167419076608

Sportmedizin im Wandel

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