Here are some simple exercises that belong to non-weight-bearing training of lower limbs. These exercises will not damage the fragile knee joint, but also strengthen the muscles of the lower limbs. You can exercise the inner thigh. Ride a bike. Nowadays, with the improvement of people's level, cars have gradually become a necessity for every family in the city, which has also improved the convenience of people's lives. But at the same time, people's exercise is gradually decreasing, which is not conducive to people's physical exercise needs. Therefore, we can suggest that everyone go out by bike in their spare time, which is not only green and environmentally friendly, but also can exercise leg muscle strength, make knee muscles stronger and reduce the damage to knees.
Specific methods: Lie on your back or sit up, bend your legs, put a pillow or ball (diameter 15-20cm) between your knees, and separate your knees by about 15cm. At the same time, exert force and try to gather them together, release them after 30 seconds, and repeat 10 times as a group. Lie flat or sit with your knees completely straight, and lift the affected leg. At this time, the quadriceps femoris contracts, keeping the knee joint straight and motionless, and there is no friction between the joint surfaces, so the joint will not be damaged. At the same time, the exercise of quadriceps femoris makes quadriceps femoris stronger, enhances the stability of knee joint, and has protective and anti-aging effects on joint.
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