하루 4분의1만 서서 보내면 비만 위험률 떨어져 Standing for at least a quarter of the day reduces odds of obesity, new study finds
Standing for at least a quarter of the day reduces odds of obesity, new study finds
앉고 서는 근무환경 필요
출처 optimalperformanceblog.com
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과체중이나 비만체형을 갖고 있다면 서있는 시간이 너무 적을 확률이 있다. 하루 24시간의 4분의1만 서서 보내면 비만 위험률이 크게 떨어진다는 연구결과가 나왔다.
이번 연구에 따르면 24시간의 25%인 6시간을 서서 보내면 비만 위험률이 32% 떨어진다. 출퇴근 시간 각각 1시간, 운동시간 1시간, 그리고 근무시간 중 3시간을 서서 일하면 대략 6시간이 채워진다. 앉아있다 서있기를 반복하는 근무환경이 마련되면 좋다는 설명이다.
연구팀은 미국 텍사스 쿠퍼클리닉이 진행한 예방의학 프로그램에 참여한 성인 실험참가자 7000명을 대상으로 이번 연구를 진행했다. 실험참가자들의 서있는 습관과 비만 위험률 사이의 관계를 조사한 것이다. 비만 위험률은 체질량지수, 체지방률, 허리둘레 등을 체크해 확인했다. 더불어 심장질환, 당뇨, 뇌졸중 등의 신진대사장애가 없는지도 살폈다.
실험 결과, 하루 중 25%를 서서 보내는 남성은 비만 위험률이 32% 떨어졌고, 절반을 서서 보내는 남성은 59% 가량 감소했다. 여성의 경우에는 각각 35%, 47% 비만 위험률이 줄어들었다.
물론 최근에는 무조건 서있는 시간이 길다고 좋은 것은 아니라는 연구논문도 나오고 있다. 앞서 ‘국제역학저널(International Journal of Epidemiology)’에 실린 논문에 따르면 일어서서도 근무할 수 있는 높이조절 책상이 앉아서만 근무할 수 있는 책상보다 굳이 건강상 유익하다고 볼 수 없다.
이 연구를 진행한 영국 엑세터대학교 연구팀에 따르면 앉아있는 시간과 조기사망 사이에는 뚜렷한 연관관계가 발견되지 않는다. 서있는 자세라 하더라도 업무환경처럼 움직임이 적은 부동적인 움직임은 건강에 특별히 이롭지 않다는 이유다. 즉 앉아있는 자세 자체가 문제라기보다 소극적인 움직임과 활동량이 문제가 된다는 설명이다.
하지만 이번 미국 연구팀은 비만과 관련해서 만큼은 서있는 시간을 늘리는 게 확실히 유리하다는 주장을 펼쳤다. 온종일 앉아서 보내는 것은 몸의 건강을 모두 약화시키는 것이 분명하다는 입장이다.
최근 서구권에서는 “앉아있는 행위는 새로운 형태의 흡연”이라는 문구가 떠돌 만큼 장시간 앉아있기의 위험성이 강조되고 있다. 단 이번 연구는 건강하고 젊은 백인 대학생들만을 대상으로 진행됐다는 점에서 연구의 한계가 있다. 실험대상자들의 범위를 넓혀 추가 연구를 진행할 필요가 있다는 것이다. 해당 논문은 ‘메이요클리닉저널(Journal Mayo Clinic Proceedings)’에 실렸다.
코메디닷컴 문세영 기자 (pomy80@kormedi.com)
Employees at Opower in Arlington, VA, have the option of using standing desks and
even have a treadmill desk. (Dayna Smith/Washington Post).
By Ariana Eunjung Cha
You may want to reconsider keeping that standing desk after all. A new study published Tuesday shows that people who stand for at least one-quarter of their day appeared to have a significantly lower likelihood of obesity.
The research, led by the American Cancer Society in cooperation with The Cooper Institute, University of Texas and University of Georgia, involved analyzing data from more than 7,000 adult patients who visited the Cooper Clinic in Dallas from 2010 to 2015. Most of the participants were white and college-educated. They were also pretty healthy, without a history of serious conditions like heart attacks, stroke or cancer.
For the first part of the study they were asked a number of fitness questions including this one about standing: “For those activities that you do most days of the week (such as work, school, and housework), how much time do you spend standing?" The answers were grouped into five categories -- almost all of the time; approximately three-quarters of the time; approximately half of the time; approximately one-quarter of the time; almost none of the time.
The second component of the study involved measuring the study participants' body mass index (BMI), body fat percentage and waist circumference and determining whether they had metabolic syndrome (a cluster of symptoms that includes high blood pressure or elevated blood sugar).
The results, published in this month's Mayo Clinic Proceedings, were striking for both genders.
In men, standing a quarter of the time was linked to a 32 percent reduction in obesity and standing half the time with a 59 percent reduced likelihood of obesity. Interestingly, standing three-quarters of the time did not appear to be associated with reduced obesity. In women, standing a quarter, half, and three-quarter was associated with 35 percent, 47 percent and 57 percent respective reductions in obesity.
In both sexes, there appeared to be no association between standing and metabolic syndrome.
Based on the study, "clinicians and public health practitioners should consider encouraging patients to achieve the physical activity guidelines and increase standing time for chronic disease prevention," Kerem Shuval, director of physical activity research for the American Cancer Society, and his colleagues wrote in the paper.
However, Shuval noted that there's still "insufficient evidence specifically focusing on the public health and medical implications of increasing daily standing time as a potential tool for health promotion."
The new study itself is limited by the fact that it's impossible to conclude from the data "whether more standing reduces the risk of obesity and [metabolic syndrome] or whether being obese or having [metabolic syndrome] leads to less standing."
If you're confused about the health benefits of standing vs. sitting you're hardly alone given the recent flurry of news about the topic. Last month, after a widely-shared study published in October in the Journal of Epidemiology found that sitting is not associated with an increased risk of dying, a number of office workers tweeted that they would be saying goodbye to their standing desks.
Shuval's study supports previous research that points to the dangers of being too sedentary. In a 2010 study in the American Journal of Epidemiology, for instance, scientists found that people who sat more than six hours a day had a much higher mortality rate than those sitting less than three hours. Earlier this year, experts writing in the British Journal of Sports Medicine recommended that people stand, wiggle and otherwise move or take breaks for at least two hours -- or a quarter of of the typical eight-hour work day.
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