한국 걷기운동 참여자의 운동실천은 CDC/ACSM의 신체활동 지침에 부합하는가?
Are Koreans Meeting CDC and ACSM Physical Activity Guideline for Public Health?
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규칙적인 신체활동 참여는 건강을 유지하는데 중대한 기여한다. Centers for Disease Control and Prevention(CDC)과 American College of Sports Medicine(ACSM)에서는 다음과 같은 신체활동 지침을 권장하고 있다. 즉, 신체활동 효과를 얻기 위해 “성인은 일주일에 5일 이상 혹은 대부분을 최소 30분 이상을 중강도에서 고강도 사이의 운동강도로 신체활동에 참가해야 한다.”고 제안하고 있다. 이 연구는 국내 걷기운동참여자가 CDC/ACSM의 지침에 어느 정도 부합되어 실시하고 있는지를 연령대별로 확인하는데 목적이 있다. 이러한 목적을 달성하기 위해 여가시간에 걷기운동 참여자 총 315명(남자 122명, 여자 193명; 연령 20-70 세)을 서울과 경기도에 위치한 여러 공원에서 무작위로 추출하였다. 신체활동 강도(MET 점수)는 걷기도로에 10m 의 거리를 정해놓고 이 구간을 통과하는 속도(m/sec)에 의해서 측정되었다. 신체활동 시간과 빈도는 개별면담(예: 일주일에 규칙적으로 신체활동[최근 일주일간 운동을 위한 걷기]에 얼마나 참여하십니까?)에 의해서 수집되었다. 수집된 자료는 연령대별로 평균과 표준편차를 산출하였으며, 연령대별로 신체활동 지침의 세부 사항에 차이가 있는지 일원변량분석(One-way ANOVA)하였다. 자료 분석 결과 전체적인 걷기운동 참여자들의 신체활동 강도, 시간과 빈도는 각각 3.35±.55 mile/hour (3.5±7.1 MET), 77.32±43.97 min/day, 3.74±1.70 times/day 인 것으로 나타났다. 전반적으로 CDC/ACSM의 신체활동 지침에서 제시된 운동강도, 시간은 부합되는 것으로 나타났으나 1주일 중 5일 이상 걷기운동에 참여하는 사람의 비율이 극히 적은 것으로 나타났다. 따라서 공중건강 증진을 위해 운동빈도 측면에서 신체활동 지침에 부합하도록 대중적 홍보가 요구된다.
Abstract
Participating in regular physical activity is beneficial to maintaining goof health. Several organizations including Centers for Disease Control and Prevention (CDC) and American College of Sports Medicine(ACSM) have issued physical activity recommendations: "Adults should engage in moderate to vigorous physical activities for at least 30 minutes on 5 or more days of the week." Little is known about whether Koreans are meeting the CDC and ACSM physical activity guidelines. A total of 315 participants(122 males and 193 females; age 20~70y) were randomly selected from several parks, located in Seoul, Korea. The dose of physical activity data(i.e., intensity, duration, and frequency) were collected to examine whether the participants meet the guidelines. The physical activity intensity(i.e., MET score) was estimated by walking velocity, which was calculate by distance in 10-meter devided by time in sec. The physical activity duration and frequency data were obtained by personal interview(e.g., How many times did you participate in regular physical activity ([i.e., walking for exercise] last 7 days?). The results showed that participants' physical activity intensity, duration, and frequency were 3.35±.55 mile/hour (i.e., 3.5±7.1 MET, 77.32±43.97 min/day, and 3.74±1.70 times/week, respectively. Overall, participants met the CDC/ ACSM physical activity recommendations for exercise intensity, duration, and frequency. Considering that 61% of participants did not reach at recommended walking for exercise intensity level, i.e., 3.8MET in the compendium of physical activity by Ainsworth et al. (2000), more specific recommendations and campaigns are needed to elevate exercise intensity level for public health
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