This would involve gradually increasing the intensity, duration, reps, sets, or resistance of your workouts so you’re constantly challenging your muscles. What? Band-assisted crunches. Why?

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We began each workout with a warm-up, then did some central nervous system prep (power or plyo moves to prime the muscles ...

Stand tall on a foam pad. Hold a resistance band that's secured in a closed door just below shoulder height with your arms ...

Christina Aguilera showed up to all of her red carpet events this year looking hotter than ever—at 43! The pop star has ...