ブロンテ・キャンベルさんのインスタグラム動画 - (ブロンテ・キャンベルInstagram)「Shoulder rotation! Shoulder rotation is so important for freestyle, to create power and streamline through the water. But be careful of over-rotating through the hips. To keep hips and shoulders in time with each other, switch on through your core. Check out previous swim tips for some drills to help you feel if your hips are moving. #swim #swimming #swimtips #training #swimtraining #pbwithbronte」11月17日 5時43分