According to an NIH study, regular endurance training “prevents metabolic syndrome, regulates fat metabolism, decreases blood glucose levels, delays the onset of type 2 diabetes, and reduces the risk of cardiovascular diseases.” These are all benefits no one wants to miss out on, and as a personal trainer, I prioritize some form of endurance training in each of my clients’ programs.
When you think of endurance, you likely think of running. However, if you aren’t a fan of running or already have enough of it programmed into your routine, you may want to consider cross-training to build endurance instead. Keep reading to discover other effective exercise methods.
What is the role of strength training in muscular endurance?

Strength training is often associated with building muscle size or power, but it plays an equally important role in developing endurance. When muscles are stronger, they require less effort to perform the same task repeatedly. This reduces fatigue and helps athletes sustain performance for longer periods.
Resistance exercises like squats, lunges, and deadlifts build the foundation for muscular endurance. By progressively increasing weight or volume, your body adapts to higher workloads while improving efficiency. Stronger muscles also enhance stability and coordination, which means better energy transfer during endurance activities like running, cycling, or swimming.
Beyond performance, strength training lowers the risk of overuse injuries. A well-conditioned musculoskeletal system can better withstand repetitive motions, allowing you to train consistently. Consistency is key to endurance, making strength work an essential complement to traditional cardio training.
Low-impact cardio options for joint-friendly gains

Swimming
Swimming offers a full-body workout that builds cardiovascular endurance without stressing the joints. The buoyancy of water reduces impact, making it ideal for athletes recovering from injury or managing conditions like arthritis. It also engages the upper body more than most endurance activities, providing a balanced training effect.
Cycling
Cycling is a low-impact way to build stamina while strengthening the lower body. Stationary or road cycling allows for controlled intensity, from long steady rides to interval training. It improves aerobic capacity while sparing the joints from repetitive pounding associated with running.
Rowing
Rowing machines or water rowing combine upper and lower body effort into a smooth, continuous motion. This makes rowing a time-efficient way to improve endurance while avoiding high-impact stress. It’s also excellent for engaging the core and posterior chain muscles, which support posture and power in other endurance sports.
Elliptical training
The elliptical trainer mimics running without the ground impact. It offers adjustable resistance and incline, helping users customize intensity levels. This option is especially useful for those who want to protect their knees and hips while still training cardiovascular fitness and muscular endurance.
How does flexibility and mobility work support endurance training?

Flexibility and mobility are often overlooked in endurance training, but they directly affect how efficiently the body moves. Improved joint range of motion allows muscles to work through their full potential, reducing strain and improving energy use. This efficiency adds up over the course of long training sessions.
Mobility work also plays a protective role. Athletes with stiff joints or restricted movement patterns are more prone to injuries like strains or tendon issues. Regular stretching, dynamic mobility drills, and techniques like foam rolling reduce muscular tension and keep connective tissues resilient.
Finally, mobility training enhances recovery between workouts. By maintaining proper alignment and reducing post-workout stiffness, athletes can return to training sooner and maintain higher consistency. Over time, this translates into better endurance progress.
Tips for combining different exercise forms for the best results

- Include two strength sessions per week to build the muscular foundation that supports endurance activities.
- Use low-impact cardio on alternate days to add volume without overloading the joints.
- Incorporate flexibility and mobility work in warm-ups and cooldowns to maintain healthy movement patterns.
- Rotate modalities weekly to prevent plateaus, improve overall fitness, and keep training engaging.
- Listen to your body’s recovery signals to avoid overtraining and sustain long-term progress.
Frequently asked questions

What is the 80/20 rule for endurance?
The 80/20 rule for endurance training suggests that about 80% of your workouts should be done at a low intensity, while 20% should be at a high intensity. This balance can help you build aerobic capacity, improve recovery, and reduce the risk of injury while still gaining speed and power.
Is cross-training better than running?
Cross-training isn’t necessarily better than running, but it can be more effective for overall fitness and injury prevention. While running directly improves running performance, cross-training builds supporting muscles, enhances cardiovascular health in different ways, and reduces joint stress. The best approach often combines both for balanced endurance development.
How often should runners cross-train?
Runners should cross-train two to three times per week, depending on their goals and training volume. Adding cycling, swimming, or strength training on non-running days builds endurance and reduces injury risk. The key is balancing cross-training with running mileage to support your recovery while still improving performance.