ํ”Œ๋ ˆ์ด์–ด ์ค‘์‹ฌ์˜ ๋ทฐ vs isometric ๊ณ ์ •ย 

ํ”Œ๋ ˆ์ด์–ด ์‹œ์ ์„ ์ค‘์‹ฌ์œผ๋กœ ์›”๋“œ๊ฐ€ ๋Œ์•„๊ฐ€๋Š” ๊ฒƒ


ํ”Œ๋ ˆ์ด์–ด ์‹œ์ ๊ณผ ์ƒ๊ด€์—†์ด ์ผ๋ฐ˜ ํƒ‘๋ทฐ ์ฒ˜๋Ÿผ ๊ณ ์ •๋œ ๋ฐฉํ–ฅ




์–ด๋–ค๊ฒŒ ๋” ๊ดœ์ฐฎ์„ ๊นŒ์š”? ์˜ˆ์‹œ๋กœ core keeper ๊ฐ™์€ ๊ฒŒ์ž„์ด๋ผ๊ณ  ํ• ๋•Œ