Effekt von Ausdauer- und Krafttraining auf hämodynamische Parameter und Herzfrequenzvariabilität

(Comparison of alterations in hemodynamic parameters and heart rate variability following aerobic and strength training)

Regular physical activity is known to have a positive influence on cardiac structure and cardiovascular function. Registration of heart rate variability (HRV) provides a sensitive non-invasive evaluation of cardiac autonomic control. Hemodynamic parameters reflect alterations in cardiovascular function and structure. The present study was designed to compare the influence of a moderate aerobic training and a strength training on both HRV and peripheral and central hemodynamics. 42 healthy subjects (28 ± 8 years; BMI 23.6 ± 2.4) were included in a prospective intervention study. In a crossover design, all subjects performed a strength training (ST) with 30% of prior maximal strength tests and, on a separate day, a 45-minute moderate aerobic training (AT) on a treadmill. HRV-parameters were registered using Polar RS800 CX® (Polar Eiektro GmbH, Germany). Peripheral and central blood pressure (BP), total peripheral resistance (TPR) and stroke volume (SV) were evaluated non-invasiveiy using Mobil-O-Graph® (PWA Monitor, IEM GmbH, Germany) before (p1), 5 minutes after (p2) as well as 12 hours after (p3) the respective exercise intervention. Five minutes after AT there were slight reductions in central and peripheral diastolic BP and TPR as well. SV remained unchanged. In contrast, 5 minutes after ST, BP was unchanged with an increase in TPR and a significantly reduction in SV (p < 0.001). The PWV showed no differences at p2 after either training intervention. Twelve hours after the training bouts, peripheral and central systolic BP as well as PWV were slightly reduced, without any difference between both training regimens. RMSSD (square root of the mean squared difference of successive RR intervals) as a parameter of HRV was distinctly lower at p2 after ST compared to AT. At p3 RMSSD showed a 54% increase (p < 0.002) after ST and resulted in a 14 percent higher outcome than after AT. Low frequency/high frequency (LF/HF) was significantly increased at p2 after both training interventions (ST: p < 0.017, AT: p < 0.004). Atp3 after AT, LF/HF returned back to pre-exercise levels, whereas in ST LF/HF was still 26% lower when compared with pre-exercise. The results show that different training interventions, such as AT and ST, influence hemodynamic parameters differently right after exercise. Even 12 hours after exercise, there were positive influences on hemodynamic parameters in both groups. In contrast to AT, the alterations in HRV-parameters after ST demonstrate long lasting
© Copyright 2018 Herzfrequenzvariabilität: Methoden und Anwendungen in der Sportwissenschaft, Arbeits- und Intensivmedizin sowie Kardiologie. 7. Internationales HRV-Symposium am 4. März 2017 in Halle (Saale). Julkaistu Tekijä Feldhaus, Ed. Czwalina. Kaikki oikeudet pidätetään.

Aiheet: syke vaihtelu urheilufysiologia suhde harjoittelu kestävyys voima, vahvuus sykevaihtelu
Aihealueet: biologiset ja lääketieteelliset tieteet
Julkaisussa: Herzfrequenzvariabilität: Methoden und Anwendungen in der Sportwissenschaft, Arbeits- und Intensivmedizin sowie Kardiologie. 7. Internationales HRV-Symposium am 4. März 2017 in Halle (Saale)
Toimittajat: K. Hottenrott, S. Ketelhut, I. Böckelmann, H. Schmidt
Julkaistu: Hamburg Feldhaus, Ed. Czwalina 2018
Sarja: Schriften der Deutschen Vereinigung für Sportwissenschaft, 270
Sivuja: 77-87
Julkaisutyypit: kirja
Kieli: saksa (kieli)
Taso: kehittynyt