Tapering for Marathon and Cardiac Autonomic Function

Hug, Bernhard; Heyer, Louis; Näf, Nicole; Buchheit, M.; Wehrlin, Jon Peter; Millet, Grégoir P. (2014). Tapering for Marathon and Cardiac Autonomic Function International Journal of Sports Medicine, 35(8), pp. 676-683. Georg Thieme Verlag 10.1055/s-0033-1361184

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The purpose of this study was to investigate changes in post-exercise heart rate recovery (HRR) and heart rate variability (HRV) during an overload-tapering paradigm in marathon runners and examine their relationship with running performance. 9 male runners followed a training program composed of 3 weeks of overload followed by 3 weeks of tapering (−33±7%). Before and after overload and during tapering they performed an exhaustive running test (Tlim). At the end of this test, HRR variables (e.g. HRR during the first 60 s; HRR60 s) and vagal-related HRV indices (e.g. RMSSD5–10 min) were examined. Tlim did not change during the overload training phase (603±105 vs. 614±132 s; P=0.992), but increased (727±185 s; P=0.035) during the second week of tapering. Compared with overload, RMSSD5–10 min (7.6±3.3 vs. 8.6±2.9 ms; P=0.045) was reduced after the 2nd week of tapering. During tapering, the improvements in Tlim were negatively correlated with the change in HRR60 s (r=−0.84; P=0.005) but not RMSSD5–10 min (r=−0.21; P=0.59). A slower HRR during marathon tapering may be indicative of improved performance. In contrast, the monitoring of changes in HRV as measured in the present study (i.e. after exercise on a single day), may have little or no additive value.

Item Type:	Journal Article (Original Article)
Division/Institute:	Swiss Federal Institute of Sports Magglingen SFISM > EHSM - Leistungssport > Sportphysiologie Ausdauer Swiss Federal Institute of Sports Magglingen SFISM > EHSM - Leistungssport > Trainingswissenschaft
Name:	Hug, Bernhard; Heyer, Louis; Näf, Nicole; Buchheit, M.; Wehrlin, Jon Peter and Millet, Grégoir P.
ISSN:	0172-4622 (Print) 1439-3964 (Online)
Publisher:	Georg Thieme Verlag
Language:	English
Submitter:	Service Account
Date Deposited:	15 Dec 2020 15:55
Last Modified:	15 Dec 2020 15:55
Publisher DOI:	10.1055/s-0033-1361184
PubMed ID:	24595813
Uncontrolled Keywords:	Endurance performance Cardiac autonomic activity Heart rate recovery Heart rate variability Parasympathetic reactivation
URI:	https://arbor.bfh.ch/id/eprint/11080