好像恰恰相反

那東西重量主要在後麵， 身體要平衡，上身得前傾

Poor Posture

 

One of the drawbacks of a weight vest is that it could cause poor posture. If you choose a vest heavier than necessary, your back can stoop and strain under the added weight. Because posture and technique are paramount for safe exercise, hunching or straining could cause serious back, neck and shoulder injuries.