Supine and standing sympathovagal balance in athletes and controls

Janssen, Marc; Bie, J. de; Swenne, Cees A.; Oudhof, J.H.

doi:10.1007/bf00376661

Cited by 35 publications

(23 citation statements)

References 22 publications

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“…Lowered LFnu evident in football players would therefore suggest diminished cardiac sympathetic activity. Further players were characterized with lower LF/HF ratio, similar result was reported by Janssen et al [25] in cyclists. The ratio of LF to HF is considered to reflect the sympatho-vagal balance.…”

Section: Discussionsupporting

confidence: 87%

Time domain and frequency domain analysis of heart rate variability in elite Nepalese football players

Sharma¹,

Paudel²,

Khadka³

et al. 2015

Int Jour of Biomed Res

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Objective: There are conflicting reports in the literature concerning the time and frequency domain parameters of heart rate variability (HRV) in athletes. Furthermore, the exact impact of different sports disciplines on cardiac autonomic function is unclear. Thus, the study was destined to assess and compare HRV in the time and frequency domains between elite Nepalese football players and non-athletes. Methods: Temporal and spectral HRV parameters determined from 5-minute continuous ECG during supine rest were studied in 27 elite male football players (age: 22.74±2.52 years) with excellent cardiorespiratory fitness, and 30 non-athletic male (age: 23.41±2.95 years) volunteers (control group). All HRV parameters were compared between the groups. Results: Resting heart rate, systolic and diastolic blood pressure were significantly lower and all parasympathetic-related time and frequency domain indices, including root mean square of successive differences [RMSSD, [HFnu,)%, p=0.001]), were higher in footballers compared to non-athletics. Similarly, standard deviation of all NN intervals (SDNN), determinant of global HRV, was higher in players (p=0.003). Furthermore, the power spectral components low frequency in normalized unit (LFnu), a sympathetic marker, and LF/HF, which reflect sympatho-vagal balance, were significantly lower in players. Conclusion: The footballers had enhanced parasympathetic (higher RMSSD, HF and HFnu, and lower LF/HF ratio) and diminished sympathetic (lower LFnu) tone on heart. Football playing has favorable effect on the cardiac autonomic profile as indicated by high global HRV (higher SDNN).

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Section: Discussionsupporting

confidence: 87%

Time domain and frequency domain analysis of heart rate variability in elite Nepalese football players

Sharma¹,

Paudel²,

Khadka³

et al. 2015

Int Jour of Biomed Res

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“…This increase can be achieved in only several weeks of training (Melanson and Freedson 2001). Janssen et al (1993) have found that there is a parasympathetic predominance in athletes in the supine, but not in the standing, position. In the present study, time domain (SD, rMSSD, pNN50) and frequency domain (TP, HF) indexes of parasympathetic activity were increased during both supine and standing, and the same results were observed with Poincare´plot parameters (i.e.…”

Section: Effect Of Endurance Training On Hrvmentioning

confidence: 93%

“…Indeed, increased HRV values, particularly indexes of parasympathetic activity, have been observed in highly trained subjects compared to their healthy sedentary counterparts (Dixon et al 1992;Janssen et al 1993;Macor et al 1996). This increase can be achieved in only several weeks of training (Melanson and Freedson 2001).…”

Section: Effect Of Endurance Training On Hrvmentioning

confidence: 95%

“…Whilst evaluation of HRV at rest is now fairly established, its assessment during exercise is still incompletely understood, mainly because studies reporting HRV analysis during exercise produced inconsistent results (Kamath et al 1991;Casadei et al 1995;Tulppo et al 1996). Also, fitness level could alter HRV (Tulppo et al 1998), and sufficiently long and intense endurance training could increase HRV (Dixon et al 1992;Janssen et al 1993;Macor et al 1996;Melanson and Freedson 2001) even if controversial results have been observed (Loimaala et al 2000).…”

Section: Introductionmentioning

confidence: 96%

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Quantitative Poincar� plot analysis of heart rate variability: effect of endurance training

Mourot

Bouhaddi²,

Perrey³

et al. 2004

European Journal of Applied Physiology

167

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The aim of the study was to evaluate the effectiveness of the Poincaré plot analysis of heart rate variability (HRV) in observing endurance training-induced changes. Four 10-min manoeuvres were performed (supine lying, standing, steady state exercising and subsequent recovery) by eight control subjects before and after a short-term endurance training and by eight subjects trained for at least 3 years. HRV was assessed by traditional time- and frequency-domain indexes, in parallel with the Poincaré plot analysis. In the latter each R-R interval is plotted as a function of the previous one, and the standard deviations of the instantaneous and long-term R-R interval variability are calculated. In our subjects, the Poincaré scatter grams became gradually narrower from supine to exercising, with progressive parasympathetic withdrawal. Short- and long-term endurance training led to higher aerobic power ( p<0.05) and ventilatory threshold shifted towards higher power output ( p<0.05). All HRV evaluation methods showed that HRV values were higher after training both during supine lying and standing ( p<0.05). The Poincaré scatter grams were wider in the trained state. Standard deviations of the Poincaré plot were significantly correlated with the main parameters of the time- and frequency-domain analyses, especially concerning the parasympathetic indicators. These results suggested that Poincaré plot parameters as well as the "width" of the scatter gram could be considered as surrogates of time- and frequency-domain analysis to assess training-induced changes in HRV.

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“…Some studies suggest that individuals with better physical fitness present higher HRV at rest (25) . Corroborating this statement, Dixonet al and Janssen et al (8,30) verified that trained individuals, when being compared with untrained individuals, present higher HRV during rest. Thus, the fact the SCI group is composed of wheelchair athletes may explain the reason why the SD1 values at rest were similar to the ones found in the other groups.…”

Section: Discussionmentioning

confidence: 88%

Modulação autonômica durante o exercício incremental com membros superiores em indivíduos com lesão medular

Santos

Pires

Bertuzzi

et al. 2011

Rev Bras Med Esporte

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Individuals with spinal cord injury (SCI) show alterations in the autonomic regulation at rest which can affect the heart rate variability (HRV) during exercise. The aim of this study was to compare the HRV threshold of a group with SCI with two control groups. Twenty-four men, seven with SCI (24.8 ± 2.0 years, 76.5 ± 6.9kg, 176.3 ± 1.9cm), eight sedentary subjects without SCI (CONSED) (24.1 ± 1.8 years, 75.1 ± 3.6kg, 176.3 ± 3.0cm) and nine athletes without SCI (CONATH) (22.6 ± 1.4 years, 73.8 ± 5.3kg, 175.6 ± 2.5cm) volunteered in this study. The participants performed an upper limb incremental test on a cycle ergometer (17.2W/two minutes) until exhaustion. The SD1 index of HRV was measured every stage, and the HRV threshold was identified at: 1) the first workload that elicited SD1 values lesser than 3ms; 2) the first stage that elicited a difference between SD1 values from two consecutive stages lesser than 1ms. SD1 values at rest or at 30% of Wmax were higher (p < 0.05) in CONSED (45.8 ± 6.8ms) than CONATH group (19.5 ± 4.4ms) but none of them were different (p > 0.05) from group SCI (25.8 ± 4.5ms). The 3ms HRV threshold expressed in absolute values or in relative to maximal workload and heart rate was not different between groups. However, the workload of 1ms HRV threshold in control group (68.8 ± 8.3W) was significantly higher (p < 0.05) than SCI group (21.5 ± 4.3W), but these groups were not different from CONSED group (41.3 ± 8.7W). These results suggest changes in autonomic control during exercise in subjects with SCI, which might lead to an early parasympathetic withdrawal during incremental exercise.

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Supine and standing sympathovagal balance in athletes and controls

Cited by 35 publications

References 22 publications

Time domain and frequency domain analysis of heart rate variability in elite Nepalese football players

Time domain and frequency domain analysis of heart rate variability in elite Nepalese football players

Quantitative Poincar� plot analysis of heart rate variability: effect of endurance training

Modulação autonômica durante o exercício incremental com membros superiores em indivíduos com lesão medular

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