Tips: 1. Do not exercise in 30 minutes after a meal. 2. Please do not use it on slippery, uneven ground. 3. Bone injury, surgery or inflammation can not be used without recovery. 4. Heart disease people please consult your doctor before using, and use the twist speed from slow to fast, so that the heart gradually adapt to avoid sudden overload. 5. Weaker physical or beginners must be used in the case of other people's assistance or hand-held handrails. 6. pregnant women to avoid use. 7. Overweight people should use careful.
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