Add a vest to box step-downs for knee keep an eye on. Lower with gradual, clean motion to reinforce quads and make stronger steadiness.
https://www.scribd.com/document/985364002/Crush-Your-Cardio-The-Ultimate-Weighted-Vest-Treadmill-Workout-Guide-142164
Add a vest to container step-downs for knee manage. Lower with sluggish, sleek motion to reinforce quads and amplify steadiness.