Why the study?
Does operating cause mental stress-induced heart rate increases in surgeons compared to physical exertion?
Does operating cause mental stress-induced heart rate increases in surgeons compared to physical exertion?
Heart rate increases in surgeons during operations are primarily driven by physical exertion rather than mental stress.
Surgeon heart rate rises during operations may reflect physical demands more than mental stress; hypothesis-generating for ergonomic interventions, needs prospective validation.
The heart rates often surgeons were measured during work, leisure and sleep over 4 × 24 hour periods. Oxygen consumption was measured while the surgeons were Operating; the environmental conditions in the operating theatres were monitored. In addition, each surgeon performed two multi-staged exercise tests to ascertain the oxygen-consumption/hcart-rate relationship. The findings were that oxygen consumption was rather low (0 26-0.411min−1) during operations, heart rates during operating were commensurate with the oxygen consumption, and the additional factors of arm work and isometric contractions, suggesting that little of the heart rate during operating resulted from mental stress.
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Becker et al. (1983) studied this question.
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