Key Takeaways
Low-Impact Exercise
Low-impact exercise refers to physical activity in which at least one foot remains in contact with the ground at all times, or the body is otherwise supported (such as in water or on a bike). This reduces the jarring forces transmitted through the joints compared to high-impact activities like running or jumping. Despite the name, low-impact exercise can still be vigorous, challenging, and highly effective for cardiovascular fitness and strength.
"Impact" in exercise science refers specifically to ground reaction forces — the force exerted on the body when it contacts a surface. Low-impact does not describe exercise intensity, which is a separate variable.
What Makes Exercise 'Low-Impact'?
The word "impact" has a precise meaning in movement science: it describes the force transmitted through your body when it makes contact with a surface. High-impact activities — running, jumping, aerobics classes with jump sequences — involve moments when both feet leave the ground, creating a landing force that can be two to three times your body weight.
Low-impact exercise avoids that landing spike. One foot stays grounded at all times, or your body is fully supported by water, a seat, or another surface. The mechanical stress on bones, cartilage, and connective tissue is substantially lower as a result.
Importantly, this says nothing about how hard you are working. A competitive cyclist maintaining a high cadence and a leisurely stroller in the park are both performing low-impact exercise — at vastly different intensities. See our guide to the major types of exercise for a broader look at how fitness categories are defined.
Activities That Qualify as Low-Impact
The category is broader than many people realize. Common low-impact activities include:
- Walking — the most accessible form, requiring no equipment beyond supportive footwear
- Swimming and water aerobics — buoyancy offloads nearly all body weight from joints
- Cycling — outdoors or on a stationary bike; intensity is easily modulated
- Elliptical training — simulates a running motion without the landing forces
- Rowing — engages the whole body with minimal joint stress when technique is sound
- Yoga and Pilates — build flexibility, core strength, and body awareness
- Tai chi — slow, deliberate movement with well-documented balance and mobility benefits
Even strength training using body weight or resistance machines is generally low-impact, since feet remain planted throughout most movements.
Intensity Still Matters
Choosing low-impact exercise doesn't mean you have to work at a gentle pace. To improve cardiovascular fitness, aim for a level of effort where conversation is possible but requires some breath — what exercise researchers call moderate intensity. Wearing a heart rate monitor or using the "talk test" can help you gauge effort without any special equipment.
For those interested in the overlap between low-impact and aerobic training, Zone 2 cardio is a concept worth exploring — much of it is naturally achieved through low-impact modalities like walking and cycling.
Who Benefits Most From a Low-Impact Approach
While virtually anyone can incorporate low-impact movement, certain groups find it especially well-suited to their needs:
Beginners and returning exercisers. Starting with lower joint stress reduces injury risk during the adaptation phase, when muscles and connective tissue are still building tolerance. Building a sustainable exercise habit is easier when soreness and injury aren't constant setbacks.
Older adults. Joint cartilage thins with age, and balance becomes increasingly important for fall prevention. Low-impact activities like walking, swimming, and tai chi address cardiovascular health while placing reduced demands on aging joints. Physical activity needs shift considerably across the decades, and low-impact options remain viable well into later life.
People managing joint conditions. Those with osteoarthritis, previous joint injuries, or chronic pain often find that high-impact movement aggravates symptoms. Low-impact alternatives allow continued activity without the same provocation.
Those recovering from injury or surgery. Exercise rehabilitation frequently begins with low-impact movement to restore function before progressive loading is introduced. A physical therapist or physician should guide return-to-activity plans.
Pregnant individuals. Many healthcare providers recommend low-impact exercise during pregnancy to maintain fitness while reducing fall risk and joint strain. Always consult a healthcare professional about appropriate activity during pregnancy.
150 min
Weekly moderate aerobic activity recommended for adults
According to the U.S. Department of Health and Human Services Physical Activity Guidelines for Americans, adults should aim for at least 150 minutes of moderate-intensity aerobic activity per week — achievable entirely through low-impact exercise.
~3x
Body weight force during running vs. walking
Research in biomechanics has consistently shown that running generates ground reaction forces roughly two to three times body weight per stride, while walking produces forces closer to 1.2 times body weight, illustrating the mechanical difference between impact levels.
Fitting Low-Impact Exercise Into a Balanced Routine
Low-impact exercise does not need to be the only type of movement in a person's week. Many active adults combine it with higher-impact or strength-based activities to build a well-rounded routine. For example, a runner might walk or swim on recovery days to maintain cardiovascular activity without accumulating additional joint stress.
For those for whom high-impact movement is not suitable or not preferred, a low-impact routine can be fully sufficient for meeting general physical activity recommendations — provided the intensity and duration are adequate. Brisk walking for 150 minutes per week, as an example, aligns with widely recognized guidelines for moderate aerobic activity.
The key principle is consistency. Regular movement at any impact level produces substantially better health outcomes than sporadic high-intensity bursts. If low-impact exercise is what you will actually do — and sustain — it is the right choice.
This article is for general informational purposes only and is not a substitute for professional medical advice. Consult a qualified healthcare provider before beginning or modifying an exercise program, especially if you have a medical condition or injury.