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【#99】(Part 6) What are the advantages and disadvantages of weight training?
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【#104】健康はもちろん、筋肉にも影響する座りすぎは危険です。筋肉が付かない理由がここにもあった。
44:19
[#212] Why can you continue? Here are the top 7 reasons why you can continue your motivation to w...
18:28
Stop it now! Aerobic exercise is a waste of time
34:52