游泳是一种良好的锻炼方式,因为人体的密度和水的密度比较相似。人在水中,身体被水的浮力支撑着,便消除了关节和骨头的重量和压力。此外,在水中的阻力取决于身体运动的速度,这样就能保证自身能力和运动的平衡。正因为这样,游泳是一种经常被残疾人使用的运动项目,确切的说水能够很大程度上减轻残疾人身体的重量,缓解一些部位的疼痛,让他们能够有机会使身体在一个正确的姿态下运动。 Swimming is a good way to exercise because the body’s density and water density are similar. In the water, the body is supported by the buoyancy of the water, eliminating the weight and pressure on the joints and bones. In addition, the resistance in the water depends on the rate at which the body is exercising, thus ensuring the balance of one’s ability and movement. Because of this, swimming is a type of exercise often used by people with disabilities. Specifically, water can greatly reduce the weight of the handicapped people, relieve the pain in some areas and give them opportunities to get the body in a correct Gesture movement.