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Challenge your core strength and build definition.
Attack your chest, core, and shoulders from new angles.
Target your core like never before.
Work your chest, back, and abs with this quick-hit TRX routine.
Make the most of a medicine ball and your own bodyweight.
This upper-body muscle-burner is the ultimate quick-hit circuit.
Use a Swiss ball and a set of dumbbells.
Test your biceps, triceps, and core.