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The association of salivary alpha-amylase, heart rate variability, and psychological stress on objectively measured sleep behaviors among college students

引用

Frontiers of Nursing 2022年第1期9卷 63-70页

作者： minhee suh Department of Nursing Inha UniversityMichuhol-GuIncheon 22212Republic of Korea

Objective:This study aimed to evaluate sleep behaviors among college students,to assess salivary alpha-amylase(sAA)and heart rate variability(HRV)in association with stress,and to investigate sleep-related factors including sAA,HRV,and stress among ***:Saliva samples for sAA assessment and HRV measurements in the supine position were taken between 3 PM and 6 *** level of prolonged psychological stress for the previous week was evaluated using the Korean version of the Global Assessment of Recent Stress(GARS-K),and sleep behaviors were assessed using an actigraphy ***:A total of 86 healthy college students participated in this *** behaviors of the college students were not good,with 84%sleep efficiency(SE)and 62.7 min wake after sleep onset(WASO).The average sAA level was 65.8 U/mL in the *** neither the sAA level nor HRV indices were significantly correlated with prolonged psychological stress,decreased normalized high frequency(nHF)on HRV was independently associated with a higher level of stress when adjusted for age and *** stress(r=-0.276,P=0.011)and lower sAA(r=0.266,P=0.030)had significant correlations with shorter time in bed;however,it was sAA that was independently associated with time in bed(β=0.244,p=0.044).Decreased nHF(β=0.245,P=0.027)and higher body mass index(BMI)(β=-0.224,P=0.043)were independently related to and poorer ***:Poor sleep behaviors were associated with decreased parasympathetic activity,a physiological change to psychological stress,rather than with psychological stress itself among college ***,sAA and HRV should be considered as significant factors for impaired sleep behaviors in relation to psychological stress.

关键词： alpha-amylase psychological stress Autonomic nervous system heart rate variability sleep

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