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Auton Neurosci. 2013 Jan;173(1-2):14-21. doi: 10.1016/j.autneu.2012.10.007. Epub 2012 Nov 15.

Interest of analyses of heart rate variability in the prevention of fatigue states in senior runners.

Author information

1
CHU de Grenoble: UF Recherche Exercice, Médecine du sport et des activités physiques & Laboratoire du sommeil, Grenoble, France.

Abstract

BACKGROUND:

The use of heart rate variability (HRV) in the management of sport training is a practice which tends to spread, especially in order to prevent the occurrence of fatigue states.

OBJECTIVES:

To estimate the HRV parameters obtained using a heart rate recording, according to different exercise impacts, and to make the link with the appearance of subjective fatigue.

METHODS:

Ten senior runners, aged 51±5 years, were each monitored over a period of 12 weeks in different conditions: (i) after a resting period, (ii) after a day with training, (iii) after a day of competition and (iv) after a rest day. They also completed three questionnaires, to assess fatigue (SFMS), profile of mood states (POMS) and quality of sleep.

RESULTS:

The HRV indices (heart rate, LF (n.u.), HF (n.u.) and LF/HF) were significantly altered with the competitive impact, shifting toward a sympathetic predominance. After rest and recovery nights, the LF (n.u.) increased significantly with the competitive impact (62.1±15.2 and 66.9±11.6 vs. 76.0±10.7; p<0.05 respectively) whereas the HF (n.u.) decreased significantly (37.9±15.2 and 33.1±11.6 vs. 24.0±10.7; p<0.05 respectively). Positive correlations were found between fatigue and frequency domain indices and between fatigue and training impact.

CONCLUSION:

Autonomic nervous system modulation-fatigue relationships were significant, suggesting the potential use of HRV in follow-up and control of training. Furthermore, the addition of questionnaires constitutes complementary tools that allow to achieve a greater relevance and accuracy of the athletes' fitness and results.

PMID:
23159164
DOI:
10.1016/j.autneu.2012.10.007
[Indexed for MEDLINE]

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