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The best tool for great shoulders and back: Kettlebell

Gorgeous-back move: Clean and Press

Here's why: Using a kettlebell builds muscle and boosts your stamina and power, thanks to the lifting motion—and your shoulder and back are largely responsible for that. "This move not only helps even out muscle imbalances in those areas since you're targeting just one side at a time," Braganza explains, "but the dynamic movement helps keep your shoulder joints in great working order." Just be sure to do a quick warm-up first with arm swings and circles.

Next: How-to: Clean and Press