Acute Effects of Fatigue on Cardiac Autonomic Nervous Activity.
The onset of fatigue disrupts the functioning of the autonomic nervous system (ANS), potentially elevating the risk of life-threatening incidents and impairing daily performance. Previous studies mainly focused on physical fatigue (PF) and mental fatigue (MF) effects on the ANS, with limited knowled...
| Publicado en: | Journal of Sports Science & Medicine Vol. 22; no. 4; pp. 806 - 816 |
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| Autores principales: | , , , , , |
| Formato: | pictorial research tables/charts Journal Article |
| Publicado: |
Hakan Gur, Journal of Sports Science & Medicine
Dec2023
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=174454216&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 174454216 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 13032968 FYN jtl: Journal of Sports Science & Medicine issn: 13032968 maglogo: N pubinfo: dt: Dec2023 vid: 22 iid: 4 pid: 26030 pub: Hakan Gur, Journal of Sports Science & Medicine artinfo: ui: 174454216 174454216 174454216 10.52082/jssm.2023.806 174454216 ppf: 806 ppct: 10 formats: fmt: @attributes: type: P tig: atl: Acute Effects of Fatigue on Cardiac Autonomic Nervous Activity. aug: au: Yan Chen Meng Liu Jun Zhou Dapeng Bao Bin Li Zhou Junhong affil: Sports Department, Beihang University, Beijing, China sug: subj: Fatigue Autonomic Nervous System Heart Physiology Visual Analog Scaling Methods Mental Fatigue Physical Performance Task Performance and Analysis Methods Human Male Female Adult Critical Illness Risk Factors Risk Assessment Activities of Daily Living Knowledge Exercise Cycling Heart Rate Variability Parasympathetic Nervous System Scales Descriptive Statistics Adult: 19-44 years Male Female ab: The onset of fatigue disrupts the functioning of the autonomic nervous system (ANS), potentially elevating the risk of life-threatening incidents and impairing daily performance. Previous studies mainly focused on physical fatigue (PF) and mental fatigue (MF) effects on the ANS, with limited knowledge concerning the influence of physical-mental fatigue (PMF) on ANS functionality. This study aimed to assess the immediate impact of PMF on ANS function and to compare its effects with those of PF and MF on ANS function. Thirty-six physically active college students (17 females) without burnout performed 60-min cycling exercises, AX-Continuous Performance Task (AX-CPT), and cycling combined with AX-CPT to induce PF, MF, and PMF respectively. Subjective fatigue levels were measured using the Rating of Perceived Exertion scale and the Visual Analog Scale-Fatigue. Heart rate variability was measured before and after each protocol to assess cardiac autonomic function. The proposed tasks successfully induced PF, MF, and PMF, demonstrated by significant changes in subjective fatigue levels. Compared with baseline, PMF decreased the root mean square of successive differences (RMSSD) between normal heartbeats (P < 0.001, d = 0.50), the standard deviation of normal-to-normal RR intervals (SDNN) (P < 0.01, d = 0.33), and the normalized high-frequency (nHF) power (P < 0.001, d = 0.32) while increased the normalized low-frequency (nLF) power (P < 0.001, d = 0.35) and the nLF/nHF ratio (P < 0.001, d = 0.40). Compared with MF, PMF significantly decreased RMSSD (P < 0.001, η² = 0.431), SDNN (P < 0.001, η² = 0.327), nLF (P < 0.01, η² = 0.201), and nHF (P < 0.001, η² = 0.377) but not the nLF/nHF ratio. There were no significant differences in ΔHRV (i.e., ΔRMSSD, ΔSDNN, ΔnLF/nHF, ΔnLF, and ΔnHF), heart rate, and training impulse between PF- and PMF-inducing protocols. Cognitive performance (i.e., accuracy) in AX-CPT during the PMF-inducing protocol was significantly lower than that during the MF-inducing protocol (P < 0.001, η² = 0.101). PF and PMF increased sympathetic activity and decreased parasympathetic activity, while MF enhanced parasympathetic activity. pubtype: Academic Journal doctype: pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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