I do «sprint» intervals with kettlebell swings & I believe they are actually helping my knees! (marksdailyapple.com)
With kettlebell workouts, you will need to give yourself a while to build up to the target weight, because they are far from easy to use. (fitnessandpower.com)
Do you think you might have overlooked the usefulness and effectiveness of kettlebell exercises in your personal strength and conditioning program? (brandonricheyfitness.com)