7-Minute Side Series
Side series strengthens muscles that support healthy knees, hips and lower back, as well as helps your balance and movement.
Just over 7 minutes. You have that much time.
Do this 3 times a week with appropriate resistance level, and you'll feel results in 2 weeks and see results in 3 weeks. Start with no weights, and add once you're ready. Remember to keep your abs engaged and your hips and torso stable.
Needs: A mat and optional ankle weights.