Dumbbells; Body-training apparatus; Chest exercisers; Elliptical trainers; Exercise benches; Exercise equipment, namely, rowing machines; Exercise equipment, namely, stair-stepping machines; Exercise machines; Exercise steppers; Exercise trampolines; Exercise treadmills; Push up stands; Sit up benches; Stationary exercise bicycles; Vibrating apparatus used in fitness and exercise programs to stimulate muscles and increase strength and physical performance