Effect of an aerobic exercise intervention on cardiac autonomic regulation: A worksite RCT among cleaners
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Effect of an aerobic exercise intervention on cardiac autonomic regulation : A worksite RCT among cleaners. / Hallman, David M; Holtermann, Andreas; Søgaard, Karen; Krustrup, Peter; Kristiansen, Jesper; Korshøj, Mette.
I: Physiology & Behavior, Bind 169, 2017, s. 90-97.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Effect of an aerobic exercise intervention on cardiac autonomic regulation
T2 - A worksite RCT among cleaners
AU - Hallman, David M
AU - Holtermann, Andreas
AU - Søgaard, Karen
AU - Krustrup, Peter
AU - Kristiansen, Jesper
AU - Korshøj, Mette
N1 - CURIS 2017 NEXS 015
PY - 2017
Y1 - 2017
N2 - OBJECTIVE: The aim of this randomized controlled trial (RCT) was to determine whether aerobic exercise during work hours affects cardiac autonomic regulation in cleaners characterized by high levels of occupational physical activity and poor cardiorespiratory fitness.METHOD: Eligible cleaners (n=116) were randomized to an aerobic exercise group (n=59) or a reference group (n=57) with lectures. The intervention group received two 30-min sessions per week of supervised aerobic exercise over 4months. Diurnal measurements of heart rate variability (HRV) and physical activity (accelerometry) were obtained at baseline and at 4-month follow-up. Time and frequency domain indices of HRV were derived during work, leisure time and sleep to evaluate cardiac autonomic regulation. Linear mixed models were used to determine the effect of the intervention on HRV indices, with adjustment for age, gender and daily use of antihypertensive and/or heart medication.RESULTS: Compared with the reference group, the exercise group increased all HRV indices apart from a reduction in LF/HF ratio from baseline to follow-up both during work (p<0.05) and leisure (p<0.05). In contrast, during sleep, the HRV indices tended to decrease in the exercise group compared with the reference group from baseline to follow-up, being significant for the HF spectral component (p=0.03).CONCLUSION: Among cleaners, a worksite aerobic exercise intervention improved cardiac autonomic regulation during work and leisure, but not during sleep. The health effect of this contrasting change in autonomic regulation needs further investigation.
AB - OBJECTIVE: The aim of this randomized controlled trial (RCT) was to determine whether aerobic exercise during work hours affects cardiac autonomic regulation in cleaners characterized by high levels of occupational physical activity and poor cardiorespiratory fitness.METHOD: Eligible cleaners (n=116) were randomized to an aerobic exercise group (n=59) or a reference group (n=57) with lectures. The intervention group received two 30-min sessions per week of supervised aerobic exercise over 4months. Diurnal measurements of heart rate variability (HRV) and physical activity (accelerometry) were obtained at baseline and at 4-month follow-up. Time and frequency domain indices of HRV were derived during work, leisure time and sleep to evaluate cardiac autonomic regulation. Linear mixed models were used to determine the effect of the intervention on HRV indices, with adjustment for age, gender and daily use of antihypertensive and/or heart medication.RESULTS: Compared with the reference group, the exercise group increased all HRV indices apart from a reduction in LF/HF ratio from baseline to follow-up both during work (p<0.05) and leisure (p<0.05). In contrast, during sleep, the HRV indices tended to decrease in the exercise group compared with the reference group from baseline to follow-up, being significant for the HF spectral component (p=0.03).CONCLUSION: Among cleaners, a worksite aerobic exercise intervention improved cardiac autonomic regulation during work and leisure, but not during sleep. The health effect of this contrasting change in autonomic regulation needs further investigation.
KW - Faculty of Science
KW - Autonomics
KW - Cardiovascular
KW - Objective measurements
KW - Occupational health
KW - Parasympathetic
KW - Physical activity
KW - Randomized controlled trial
U2 - 10.1016/j.physbeh.2016.11.031
DO - 10.1016/j.physbeh.2016.11.031
M3 - Journal article
C2 - 27889332
VL - 169
SP - 90
EP - 97
JO - Physiology & Behavior
JF - Physiology & Behavior
SN - 0031-9384
ER -
ID: 169377322