자연과학편 : 임신부의 걷기 강도에 따른 심박수, 산소섭취량, 운동자각의 반응 = Responses of Heart Rate, Oxygen Uptake, and Perceived Exertion during Varied Walking Intensity in Pregnant Women

다국어 초록 (Multilingual Abstract)

This study was designed to compare the heart rate (HR), oxygen uptake (VO2), and the ratings of perceived exertion (RPE) during exercise and recovery in pregnant and non-pregnant women and to verify the moderate walking exercise intensity recommended for pregnant women. Fifteen medically cleared mid- and late-stage pregnant women and eleven non-pregnant women participated in this study. They walked on a treadmill at 3 speeds (3, 5, and 6 kph) and recovered after each speed. During walking and 10-min recovery, their HR, VO2, RPE, and the pregnancy related abdominal cramp (AC) were measured. HR during exercise and recovery was higher in pregnant than non-pregnant women. Changes of HR recovery and RPE at 3 kph was not different, but was different at 5 and 6 kph. As exercise intensity increased, HR recovered slower in pregnant women than non-pregnant women. Pregnant women felt harder to the exercise intensity as the intensity increased. The walking of 5 kph level can be considered moderate walking intensity recommended for healthy mid- and late-stage pregnant women. Exercise responses to subdivided pregnancy stage and longitudinal studies are warranted.

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