Beth Skwarecki is Lifehacker’s Senior Health Editor, and holds certifications as a personal trainer and weightlifting coach. She has been writing about health for over 10 years. Suspension trainers ...
Plyometrics, or jump training, can help you build power in jumping and sprinting-type sports, but they’re also stressful on your knees. Make them lower impact by holding onto suspension trainers (like ...
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