6. Knee lift with lateral raise
Functionality: This exercise improves your core strength and balance as well as strengthens and tones your shoulders.
Exercise: Stand tall with a 5-pound weight in each hand, arms to your sides. Lift your right knee until it reaches hip level while lifting your arms straight out to the side to form a T at your shoulders. Hold for 2 seconds, making sure your belly button is pulled back toward your spine, and then lower to the start position. Repeat 10 to 15 times for each leg. Increase the weight of the dumbbells as you get stronger.