The effects of a ten-week physical conditioning program were evaluated in a group of professional hospital personnel. Exercise sessions were held during working hours five times per week and consisted of jogging one mile in a ten-minute period. Results suggested that the program was feasible during the busy workday schedule. Lack of interest, physical impairment, and inadequate facilities, however, contributed to a 42% attrition rate. The data also indicated that definite physiological effects were obtained with these short periods of daily exercise. Mean physical working capacity increased 145 kilopond-meters (kpm)/min; maximal oxygen uptake, 4.16 ml/kg/min; and maximum voluntary ventilation, 28 liters/min. Resting mean heart rate diminished 11 beats per minute. Three risk factors of coronary heart disease, body weight and serum cholesterol and serum triglyceride values, were not altered.
Koepke KR, Luria MH. Physical Conditioning in Medical Personnel. Arch Intern Med. 1972;130(3):343–345. doi:10.1001/archinte.1972.03650030025006
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