9. Kettlebell

Because all of a kettlebell’s weight (5 to 100-plus pounds) is in the cast-iron ball, not the handle, momentum is on your side during swinging moves, so you can likely hoist twice your typical heft. The quirky shape also creates a long lever, providing unique resistance during static strength moves. It’ll leave your biceps no choice but to get buff!

The Top 10 Fitness Gadgets That Work  was originally published on blackdoctor.org

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