Some of the best exercises to tone arms and legs challenge your core, too. Don't waste time focusing on one muscle at a time; instead, work your arms, abs, and glutes all at once, so you’ll get total-body results in a fraction of the workout time.
Why waste hours toiling away on one little muscle at a time when you can target three in one fell swoop? Make these multi-tasking moves a mainstay of your workout: Each one simultaneously hits your arms, abs, and glutes, so you’ll get total-body results in a fraction of the workout time. All you need is a mat, a Swiss ball, and some dumbbells.