Physiological heart rate profile of hyperbaric underwater worker during an exercise stress testing as a predictor of physical fitness (1103.1)

Abstract

Aims: Study the possibility of abnormalities of heart rate with increased risk of sudden death or myocardial infarction is an important health burden in occupational or hyperbaric medicine Method: We studied the heart rate (HR) of 200 apparently healthy underwater workers during and after 780 bicycle exercise stress tests, recommended for medical fitness. The results were analysed step by step by mean, standard deviation and normal distribution. Results: For maximal power (range 99‐249 watts) the average of HR were at 98 ± 7.4 % of FMT. The HR had a continuous probability distribution at each step The variations above or below two standard deviation are defined as an abnormal response These patients have a temporary medical contraindication before special re‐assessments. Conclusion: The cardiovascular system should be sufficient to enable the underwater workers to sustain activity without increased risk. Exercise testing cannot exclude all cardiac risk; but the HR behavior was recommended for medical fitness. It should be especially, indeed, the consequences of injury are important and dangerous This finding should be considered in future cardio‐vascular guidance documents applied for a specific population