Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp

Iizuka, Tomonori; Ohiwa, Nao; Atomi, Tomoaki; Shimizu, Miho; Atomi, Yoriko

doi:10.3390/sports8110147

Cited by 8 publications

(4 citation statements)

References 34 publications

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“…Standard deviation of RR-intervals (SDNN) decreased in the group of analytic participants throughout the experiment. Such SDNN dynamics in combination with constant averaged heart rate is usually related to a decrease in individual energy levels due to experiencing light fatigue (Boneva et al, 2007;Iizuka et al, 2020). This is also supported by the fact that analytic participants solved the tasks slower, suggesting higher cognitive effort.…”

Section: Discussionmentioning

confidence: 80%

Analytic and Holistic Thinkers: Differences in the Dynamics of Heart Rate Complexity When Solving a Cognitive Task in Field-Dependent and Field-Independent Conditions

et al. 2021

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Analytic and holistic thinking styles are known to be associated with individual differences in various aspects of behavior and brain activity. In this study, we tested a hypothesis that differences in thinking styles may also be manifested at the level of neuro-visceral coordination. Heart rate variability (HRV) was compared between analytic and holistic thinkers at rest, during a simple motor choice reaction time task and when solving cognitive choice reaction time tasks in conditions with varying instructions contrasting the role of the field when evaluating objects. Participants (N = 52) with analytic and holistic thinking styles were equally successful at solving the cognitive tasks but response times were longer in the analytic group, compared to the holistic group. Heart rate complexity, as measured by sample entropy, was higher in the analytic group during the cognitive tasks but did not differ from the holistic group at rest or during the simple motor task. Analytic participants had longer response times and higher heart rate complexity when evaluating objects in relation to the field than when evaluating objects irrespective to the field. No difference in response times or heart rate complexity between tasks was observed in the holistic group. Our findings demonstrate that differences in individual behavior, including those related to holistic and analytic thinking styles, can be reflected not only in brain activity, as shown previously using fMRI and EEG methods, but also at the level of neuro-visceral coordination, as manifested in heart rate complexity.

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Section: Discussionmentioning

confidence: 80%

Analytic and Holistic Thinkers: Differences in the Dynamics of Heart Rate Complexity When Solving a Cognitive Task in Field-Dependent and Field-Independent Conditions

et al. 2021

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“…There was a significant difference in the value of RMSSD in chronic SCI patients from supine to sitting position from this study. The RMSSD value describes the parasympathetic modulation of the heart (20).…”

Section: Discussionmentioning

confidence: 99%

Comparison of Heart Rate Variability of Chronic Spinal Cord Injury Patients in Supine and Sitting Positions

Sangkoy¹,

Putra²,

Sulastri³

2022

IJRP

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Background: Sympathetic and parasympathetic activity shift in response to body position changing. Spinal cord injury (SCI) patients have problems controlling autonomic functions occurs as a result of an imbalance between the sympathetic and parasympathetic nervous systems. Despite the fact that changing body position is often used in SCI rehabilitation, few studies have compared the autonomic activity of SCI patients at different body positions. Heart rate variability (HRV) can be used to invasively assess cardiac autonomic modulation. This study aims to obtain information about the autonomic modulation features of SCI patients in supine and sitting positions using HRV measurements. Methods:This study was a cross-sectional study approach. Participants of this study were 14 chronic SCI patients with injury durations more than a year. Measurement of HRV is using Polar H10 (1B56EB2E). HRV measurements in the subjects of this study were Root Mean Square of the Successive Differences (RMSSD) and Low Frequency/High Frequency (LF/HF) ratio in supine and sitting positions.Results: There was a significant difference in the value of RMSSD in chronic SCI patients from supine to sitting position (p 0.019). There was no significant difference in the value of LF/HF ratio in chronic SCI patients from supine to sitting position (p 0.408).Conclusions: Parasympathetic activity (RMSSD) decreased significantly in chronic SCI patients due to postural changing from supine to sitting position. Despite the fact that sympathetic activity is disrupted in SCI patients, the sympathovagal balance can still be maintained with changes in body position.

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“…Examination of HRV to evaluate cardiac parasympathetic nervous activity, alone or in combination with sympathetic nervous activity, is effective for objectively monitoring the fatigue status of athletes [ 5 , 6 , 7 , 8 ]. A decrease in parasympathetic HRV indices reflects an increased fatigue status in athletes [ 6 , 8 , 9 , 10 , 11 , 12 , 13 ]. Iizuka et al [ 12 ] reported that changes in fatigue status of elite badminton players significantly correlated with changes in parasympathetic HRV indices.…”

Section: Introductionmentioning

confidence: 99%

“…A decrease in parasympathetic HRV indices reflects an increased fatigue status in athletes [ 6 , 8 , 9 , 10 , 11 , 12 , 13 ]. Iizuka et al [ 12 ] reported that changes in fatigue status of elite badminton players significantly correlated with changes in parasympathetic HRV indices. Naranjo et al [ 13 ] reported lower parasympathetic HRV values and higher fatigue in professional soccer players during the final phase of the competition season.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Morning Heart Rate Variability at the Beginning and End of a Competition Season in Elite Speed Skaters

Iizuka

Kon

Maegawa

et al. 2020

Sports

Self Cite

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The aim of this study was to clarify whether the physiological fatigue status of elite speed skaters is influenced by the approximately five-month international competition season by comparing morning heart rate variability (HRV) at the beginning of the competition season (Japan Single Distances Championships: JSDC) with that at the end of the competition season (World Single Distances Championships: WSDC). Five international-class speed skaters participated in the study. HRV indices and subjective fatigue were measured each morning of the four days prior to the first races of the JSDC and WSDC in the 2007/2008 season. The parasympathetic HRV indices: root mean square of the successive R-R interval differences (RMSSD) (JSDC, 61.0 ms; WSDC, 42.1 ms; p < 0.05), high-frequency component power (HF) (JSDC, 1393 ms2; WSDC, 443 ms2; p < 0.05), and normalized unit of HF (HFnu) (JSDC, 53.2%; WSDC, 25.5%; p < 0.05) were lower for the WSDC than for the JSDC. The decrease in these indices may reflect the skaters’ accumulated fatigue during the course of the competition season. Morning measurements of HRV may thus be an efficient way for elite speed skaters and coaches to objectively monitor physiological fatigue throughout the competition season.

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Morning Heart Rate Variability as an Indication of Fatigue Status in Badminton Players during a Training Camp

Cited by 8 publications

References 34 publications

Analytic and Holistic Thinkers: Differences in the Dynamics of Heart Rate Complexity When Solving a Cognitive Task in Field-Dependent and Field-Independent Conditions

Analytic and Holistic Thinkers: Differences in the Dynamics of Heart Rate Complexity When Solving a Cognitive Task in Field-Dependent and Field-Independent Conditions

Comparison of Heart Rate Variability of Chronic Spinal Cord Injury Patients in Supine and Sitting Positions

Comparison of Morning Heart Rate Variability at the Beginning and End of a Competition Season in Elite Speed Skaters

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