Swimming/배영 썸네일형 리스트형 Backstroke - Entry Phase Most swimmers complete the entry phase in backstroke as soon as the arm breaks the surface of the water - that is, the speed of the arm slows down as the arm submerges, and then the arm begins moving laterally. This is counterproductive for three reasons: 1) loss of hand speed, 2) wasted time, and 3) misdirected force. An effective entry phase is not complete until the arm is submerged to the po.. 더보기 이전 1 ··· 7 8 9 10 11 12 13 ··· 27 다음
