Recovery of rescuers from a 24-h shift and its association with aerobic fitness
Lyytikäinen, K., Toivonen, L., Hynynen, E., Lindholm, H., & Kyröläinen, H. (2017). Recovery of rescuers from a 24-h shift and its association with aerobic fitness. International Journal of Occupational Medicine and Environmental Health, 30(3), 433-444. https://doi.org/10.13075/ijomeh.1896.00720
Julkaistu sarjassa
International Journal of Occupational Medicine and Environmental HealthTekijät
Päivämäärä
2017Tekijänoikeudet
© the Authors, 2017. This is an open access article distributed under the terms of a Creative Commons License.
Objectives: Rescuers work in 24-h shifts and the demanding nature of the occupation requires adequate recovery between
work shifts. The purpose of this study has been to find out what kind of changes in autonomic control may be seen during
work shift and its recovery period in the case of rescuers. An additional interest has been to see if aerobic fitness is associated
with recovery from work shifts. Material and Methods: Fourteen male rescuers (aged 34±9 years old) volunteered to
participate in the study. Heart rate variability (HRV) was recorded for 96 h to study stress and recovery, from the beginning
of a 24-h work shift to the beginning of the next shift. Aerobic fitness assessment included maximal oxygen uptake (VO2max)
estimation with a submaximal bicycle ergometer test. Salivary cortisol samples were collected 0 min, 15 min, and 30 min
after awakening on the 3 resting days. Results: Some HRV parameters showed enhanced autonomic control after the work
shift. Stress percentage decreased from the working day to the 2nd rest day (p < 0.05). However, maximal oxygen uptake
was not associated with enhanced parasympathetic cardiac control (p > 0.05). Cortisol awakening response was attenuated
right after the work shift. Conclusions: The HRV findings show that recovery after a long work shift takes several days.
Thus, rescuers should pay attention to sufficient recovery before the next work shift, and an integrated model of perceived
and physiological measurements could be beneficial to assess cardiovascular strain among rescuers with long work shifts.
...
Julkaisija
Polish Association of Occupational MedicineISSN Hae Julkaisufoorumista
1232-1087Asiasanat
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https://converis.jyu.fi/converis/portal/detail/Publication/26999929
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Recovery of rescuers from a 24-hour shift and its association with physical fitness
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Sleep-time physiological recovery is associated with eating habits in distressed working-age Finns with overweight : secondary analysis of a randomised controlled trial
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