Indoor Cycling

Indoor cycling has surged into a leading low-impact cardio option, with the global market valued near $2 billion and projected to double by the early 2030s. Body weight rests fully on the saddle, so knees, hips, and ankles carry almost no load, yet you can push your heart and legs as hard as desired. A 12-week program in women with obesity improved peak oxygen uptake, reduced body-fat and waist measurements, and lowered C-reactive protein, a marker of inflammation. Harvard Health specifically recommends spinning for knee or hip issues due to its intense, impact-free cardio. Resistance and cadence are infinitely adjustable, serving both recovery spins and all-out intervals. Limitations: cycling is lower-body dominant, doing little for the upper body or core, and improper bike fit can cause knee discomfort or numbness.