:   Ϸ翡 7,000, δ ()
ǰϰ ⸦ Ѵٸ  ʼ̴.  ִ ȱ ̴. ȱ ȿ ƴ. ȱ ü ȿ Ӹ ƴ϶ ȴ. ׷ٸ Ϸ翡 󸶳 ȴ ֱ ǥ Ϸ翡 7,000 ̻ ȴ ⿡ Ѵ.

Ϸ 7,000 ̻   Ѵٴ  Դ̱ Ż߼б ָӽƮķ۽(University of Massachusetts-Amherst) ü(Kinesiology) Ƹ ȷġ(Amanda Paluch) 38~50 2,110 ȴ ȴ ӵ, ߴ. Ϸ ȴ 翡 ũ 7,000 ̸ ȴ ׷, 7,000~9,999 ȴ ׷, 10,000 ̻ ȴ ׷ . 10.8 , 72 ߴ. ٺ ͸ м , Ϸ 7,000 ̸ ȴ Ϸ 7,000~9,999 ȴ ⿡ 72%, Ϸ 10,000 ̻ ȴ ⿡ 55% ߴٰ . , д ؼ ߴ. , д ̿ ǹ ٰ . ̹ 3(ð) ̱ǻȸ м JAMA Ʈũ (JAMA Network Open) Ǿ. ùٸ ȱ ڼ տ ް ִٴ Ȳġ 90 θ յڷ , ü 15 ٶ󺸴 . , 㸮 Ʋ , а Ͽ κ Ǵ Ѵ. 鿡 ߵڲġ ߹ٴ, ղġ ϴ ùٸ ȱ ڼ.

: ؾ ϴ ? ʼ ٷ '̰'?!
: Ϻ Ǵ ÷翣 , ڷγ Ű ص š