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생각보다 30분타면 땀도 엄청 나고 힘들더라구요.. 저도 무릎 수술하고 병원서 자전거로 재활하라고 해서 엄청 탔었거든요
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Knee and ankle joints are all not in good condition.
Walking is difficult, and stairs are also hard.
But if you don't exercise, you'll lose muscle mass.
I'm using the unused X-bike.
30 minutes a day
So, I feel like my thigh muscles are developing.
I'm planning to try steadily little by little.