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サマリー
あらすじ・解説
Inventor and movement specialist David Weck discusses his various inventions (Bosu Ball and ProPulse Speed Trainers), as well as the confusing misconceptions that are spread amongst the fitness industry.
Inventor and movement specialist David Weck discusses his various inventions (Bosu Ball and ProPulse Speed Trainers), as well as the confusing misconceptions that are spread amongst the fitness industry.