Running alternatives: 6 joint-friendly cardio exercises that spare your knees
Running has enjoyed a genuine boom in recent years. The fitness-tracking app Strava recorded a 59% increase in users attending social running events and run clubs globally in 2024. Applications for the London Marathon have climbed 40% since 2024, while New York City's marathon received about 20% more applicants this year.
An estimated 56 million Americans regularly run on a treadmill and 51 million jog outdoors, according to a report from the Sports and Fitness Industry Association. Running does carry a reputation for being rough on the joints, though a 2023 study found less of a link between recreational running and knee arthritis than many assume; even so, plenty of people switch to lower-impact options for other reasons, or simply out of personal preference.
Swimming is one alternative that works the whole body while water buoyancy removes the load of body weight from the joints. Done at sufficient effort, it exercises the cardiovascular system comparably to running, and is often considered especially suitable for people with arthritis or recovering from injury.
Cycling, whether on a stationary bike or on the road, keeps the impact on knees and hips low while building leg strength and cardiovascular fitness. Adjustable resistance means intensity can be scaled up in a way that resembles interval running.
A rowing machine offers a full-body workout that engages the legs, back and arms together. The smooth, controlled motion reduces joint jarring while still delivering an intense combination of cardio and strength training.
An elliptical trainer mimics the running motion without the impact of a foot strike, while brisk incline walking on a treadmill or trail raises the heart rate substantially with far less joint stress than running produces.
Water aerobics and aqua jogging combine the cardio benefits of a running-like motion with the resistance and buoyancy of water, making them popular among people in rehabilitation and among older adults.
Low-impact, dance-based cardio classes, step classes and stair-climbing machines offer a social, high-energy alternative that places far less repetitive load on the joints than running does.
Experts say that whichever activity is chosen, alternating between different exercises, adding strength training to support the joints, warming up properly, and consulting a physiotherapist about any persistent pain matter more than the specific choice of cardio.
Based on the available research, running is not inherently harmful to the joints. But for people seeking variety, recovering from injury, or simply wanting a different kind of challenge, these lower-impact alternatives can match or even exceed running's cardiovascular benefits without the same repetitive impact.
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