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Overnight heart rate variability responses to military combat engineer training
journal contribution
posted on 2023-02-20, 05:31 authored by Sean CorriganSean Corrigan, Spencer RobertsSpencer Roberts, Stuart WarmingtonStuart Warmington, JR Drain, Jamie TaitJamie Tait, S Bulmer, Luana MainLuana MainThe study aimed to determine if overnight heart rate variability (HRV) is reflective of workload and stress during military training. Measures of cognitive load, perceived exertion, physical activity, nocturnal HRV, cognitive performance and sleep were recorded for a 15-day assessment period in 32 combat engineers. The assessment period consisted of 4 phases, PRE, FIELD, BASE and RECOVERY that exposed trainees to periods of sleep deprivation and restriction. The FIELD phase was characterised by an increase in mood disturbance, perceived exertion, physical activity, HRV and a reduction in sleep quantity (p < 0.05). Measures of HRV returned to PRE-values quicker than subjective wellbeing responses. The combination of sleep duration (β = −0.002, F = 13.42, p < 0.001) and physical activity (metabolic equivalents, β = −0.483, F = 5.95, p = 0.017), the main stressors of the exercise, provided a significant effect in the best predictive model of HRV. The different recovery rates of HRV and subjective wellbeing suggest a different physiological and psychological response.
History
Journal
Applied ErgonomicsVolume
107Article number
103935Pagination
103935-103935Location
EnglandPublisher DOI
ISSN
0003-6870eISSN
1872-9126Language
enPublisher
Elsevier BVUsage metrics
Categories
Keywords
SleepSoldiersStressHumansHeart RateMilitary PersonnelExerciseSleep DeprivationSleep ResearchBasic Behavioral and Social ScienceBehavioral and Social ScienceMental HealthNeurosciencesHuman Movement and Sports Science not elsewhere classifiedDesign Practice and Management not elsewhere classifiedMedical Physiology not elsewhere classified
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