求翻译：游泳健身运动是利用人体在水中受到浮力、阻力、磨擦力，以及人体在水中处于失重状态下进行锻炼的一种全身运动，适合于各类人群。游泳健身运动的强度与跑步大体相似，每分钟心率可控制在180减去年龄数，再减去10,比如一个60岁的人，其游泳时的心率可控制在每分钟180-60-10＝110次，运动时间不少于30分钟，每周不少于3次。是什么意思？

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swimming fitness campaign is to use human body by buoyancy in water, friction and resistance, as well as in human body in weightlessness in the water in the workout of a whole body, suitable for all kinds of people. swimming fitness sports are generally similar, intensity and running heart rate per

The swimming health sports are use the human body to receive the buoyancy, the resistance, the frictional force in the water, as well as the human body is at under the null-gravity state in the water to carry on the exercise one kind of whole body movement, suits in each kind of crowd.The swimming h

Swimming exercise is the use of human body in the water by buoyancy, resistance, frictional force, as well as the human body in a State of weightlessness in the water under the exercise of a whole body motion, apply for all kinds of people. Swimming exercise intensity and running a broadly similar,

Swimming exercise is the use of human body in the water by buoyancy, resistance, frictional force, as well as the human body in a State of weightlessness in the water under the exercise of a whole body motion, apply