肌肉松弛 ,骨质疏松 ,曾被认为是随着老年到来的不可避免的客观规律。 40岁以后 ,大多数人的肌肉开始减少而被脂肪代替。但是 ,科学研究证明 ,有规律的负重运动可以维持已有的骨质 ,这对于妇女避免骨质疏松症尤为重要。锻炼的种类很重要 ,游泳和骑自行车一类活动有助于心脏的健 Muscle relaxation, osteoporosis, has been considered as the inevitable objective law with the arrival of old age. After the age of 40, most people’s muscles begin to decrease and are replaced by fat. However, scientific research shows that regular weight-bearing exercise can maintain the existing bone, which is particularly important for women to avoid osteoporosis. The type of exercise is very important, swimming and cycling a class of activities contribute to the health of the heart