1: Body 2: Therapy 3: Physical activity 4: Protection 5: Food 6: Muscular Endurance 7: Flexibility 8: Muscular Strength 9: Energy 10: Nutrition 11: Yoga 12: Exercise 13: Fitness 14: Injury 15: Weight 16: Muscle group 17: Activity 18: Health 19: Intake 20: Force (As of 00:30)
Ball-and-socket joint refers to one kind of triaxial joint to provide 3-degree-of-freedom motions
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