We’ve gotten the message. High-intensity interval training is efficient—workouts are under half an hour, and often just a few minutes. And they’re effective. Research finds that HIIT improves athletic endurance, strengthens the heart, cuts body fat, and makes you a happier person. But not everyone’s a fan. For some, all those tuck jumps, burpees, box jumps, and rounds of speed roping leaves them limping the next day. Pounding movements can lead to joint tenderness, or exacerbate existing muscular or joint issues. And avid runners who pound the pavement may want to avoid impact for cross-training workouts.
Fortunately, high intensity doesn’t have to mean high impact. “Lower-impact exercises are great for people with knee or ankle injuries, or anyone heading back into the gym after a hiatus,” says Josh Woodall, a strength and conditioning coach in Temple, Texas. He put … Read the rest