Autonomic cardiac regulation, blood pressure and cardiorespiratory fitness responses to different training doses over a 12 week group program in the elderly

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15510%2F17%3A73579424" target="_blank" >RIV/61989592:15510/17:73579424 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0167494317300584" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0167494317300584</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.archger.2017.01.012" target="_blank" >10.1016/j.archger.2017.01.012</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Autonomic cardiac regulation, blood pressure and cardiorespiratory fitness responses to different training doses over a 12 week group program in the elderly

Popis výsledku v původním jazyce

Aim: The study assessed the effects of different weekly training frequencies performed over a 12 week exercise programme (strength, endurance, balance) on autonomic cardiac activity, blood pressure and cardiorespiratory fitness (CRF) in elderly individuals. Methods: Fifty-eight individuals participated in the study: 2TG (N = 24, 71.1 ± 6.4 yrs; 19 females, 5 males) performing two, 60 min sessions/week; and 3TG (N = 34, 72.3 ± 7.9 yrs; 25 females, 9 males) performing three, 60 min sessions/week. Time domain and spectral analysis of heart rate variability (HRV) quantified autonomic cardiac regulation. Results: Natural logarithm (Ln) transformation was applied to all HRV parameters. There were significant reductions in total power (Ln TP) (p = 0.006), low frequency (Ln LF) (p = 0.013), high frequency (Ln HF) (p = 0.013) and root mean square of successive differences (Ln rMSSD) (p = 0.014) post training in 3TG after intervention. Diastolic BP (DBP) decreased significantly in both groups (2TG: P &lt; 0.001; 3TG: P &lt; 0.001). Both groups showed significant improvements in six-minute walk distance (2TG: P = 0.003, 3TG: P = 0.001). However, there were significant HRV differences between 2TG and 3TG for Ln TP (P = 0.018), Ln LF (P = 0.049), Ln HF (P = 0.039) and Ln rMSSD (P = 0.049). Conclusions: A combined exercise programme resulted in improved DBP and CRF irrespective of training two or three 60 min sessions/week. However, training three, sessions/week induced negative health-related changes in autonomic cardiac activity through reducing HRV parasympathetic function, while HRV was maintained in the group training twice a week.

Název v anglickém jazyce

Autonomic cardiac regulation, blood pressure and cardiorespiratory fitness responses to different training doses over a 12 week group program in the elderly

Popis výsledku anglicky

Aim: The study assessed the effects of different weekly training frequencies performed over a 12 week exercise programme (strength, endurance, balance) on autonomic cardiac activity, blood pressure and cardiorespiratory fitness (CRF) in elderly individuals. Methods: Fifty-eight individuals participated in the study: 2TG (N = 24, 71.1 ± 6.4 yrs; 19 females, 5 males) performing two, 60 min sessions/week; and 3TG (N = 34, 72.3 ± 7.9 yrs; 25 females, 9 males) performing three, 60 min sessions/week. Time domain and spectral analysis of heart rate variability (HRV) quantified autonomic cardiac regulation. Results: Natural logarithm (Ln) transformation was applied to all HRV parameters. There were significant reductions in total power (Ln TP) (p = 0.006), low frequency (Ln LF) (p = 0.013), high frequency (Ln HF) (p = 0.013) and root mean square of successive differences (Ln rMSSD) (p = 0.014) post training in 3TG after intervention. Diastolic BP (DBP) decreased significantly in both groups (2TG: P &lt; 0.001; 3TG: P &lt; 0.001). Both groups showed significant improvements in six-minute walk distance (2TG: P = 0.003, 3TG: P = 0.001). However, there were significant HRV differences between 2TG and 3TG for Ln TP (P = 0.018), Ln LF (P = 0.049), Ln HF (P = 0.039) and Ln rMSSD (P = 0.049). Conclusions: A combined exercise programme resulted in improved DBP and CRF irrespective of training two or three 60 min sessions/week. However, training three, sessions/week induced negative health-related changes in autonomic cardiac activity through reducing HRV parasympathetic function, while HRV was maintained in the group training twice a week.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

30306 - Sport and fitness sciences

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Archives of Gerontology and Geriatrics

ISSN

0167-4943

e-ISSN

—

Svazek periodika

70

Číslo periodika v rámci svazku

May–June

Stát vydavatele periodika

IE - Irsko

Počet stran výsledku

6

Strana od-do

130-135

Kód UT WoS článku

000399481500018

EID výsledku v databázi Scopus

2-s2.0-85010288571