Combining strength training with cardio exercises is an effective way to build muscle and improve endurance. A common question athletes ask themselves is: How long should you do cardio after strength training? In this article, we’ll take a detailed look at the optimal duration and best practices for maximizing the benefits of both types of training.
The Role of Cardio After Strength Training
Strength training and cardio have different goals. While strength training focuses on building muscle and increasing physical strength, cardio promotes endurance and improves heart health. But how can the two be combined most effectively? It’s important to understand how cardio works after strength training and what effects the duration of the cardio workout has on the body.
The Benefits of Cardio After Strength Training
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Better Fat Burning: Strength training depletes the body’s glycogen stores. When cardio is performed afterward, the body is more likely to draw on fat reserves, which promotes fat burning.
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Improved Endurance: Doing cardio after strength training helps improve aerobic endurance without compromising muscle recovery.
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Optimizing Recovery Time: Light cardio can improve blood circulation and speed up the removal of waste products produced during strength training. This supports recovery and reduces muscle soreness.
How long should cardio last after strength training?
The duration of cardio exercise after strength training depends on various factors, such as your individual fitness goals, the intensity of the strength training, and your own fitness level. Here are a few recommendations:
Light to moderate cardio
If your main goal is to burn fat and improve endurance, it is recommended that you do 20 to 30 minutes of moderate-intensity cardio after strength training. This could include exercising at a moderate pace on a treadmill, stationary bike, or elliptical trainer.
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Duration: 20 to 30 minutes
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Intensity: Low to moderate, about 60–70% of maximum heart rate
This duration is sufficient to maximize fat burning without overworking the body. At the same time, it strengthens the cardiovascular system and improves endurance.
High-Intensity Cardio
If you want to take your endurance to the next level or burn extra calories, you might want to consider more intense cardio. In this case, you can shorten the duration to 10 to 15 minutes, since intense cardio sessions burn more calories per minute.
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Duration: 10 to 15 minutes
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Intensity: High, about 80–90% of maximum heart rate
HIIT (High-Intensity Interval Training)
HIIT is a very efficient way to achieve maximum results in a short amount of time. If you want to incorporate a short but very challenging cardio session after an intense strength training workout, HIIT is an excellent choice. HIIT can be done in just 10 to 15 minutes and burns a lot of calories, even after your workout (afterburn effect).
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Duration: 10 to 15 minutes
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Intensity: Very high, with short recovery periods between intervals
Cardio After Strength Training vs. Before Strength Training
It's also possible to do cardio before strength training. However, this has different effects on the body:
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Cardio before strength training: This places greater strain on the cardiovascular system before the muscles are subjected to intense exertion. It can lead to rapid fatigue and impair performance during strength training.
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Cardio after strength training: Strengthens the cardiovascular system without compromising muscle strength. It is the preferred method for getting the most out of both types of training.
The Best Cardio Exercises After Strength Training
Not every cardio exercise is equally effective after strength training. Here are some of the best cardio exercises you can incorporate into your workout plan after strength training:
Running or Jogging
Running on a treadmill or outdoors is one of the best forms of cardio. It improves endurance and helps burn fat. Be sure to choose a moderate pace so you don't overexert yourself.
Cycling
Cycling is a low-impact cardio option that’s ideal after strength training. You can use either stationary bikes at the gym or a real bike outdoors. Cycling not only helps burn fat but also strengthens your leg muscles.
Cross-trainer
The cross-trainer is especially popular because it works both the legs and the upper body. The smooth motion is easy on the joints, and you can get an effective cardio workout.
Swimming
Swimming is an ideal cardio exercise to do after strength training, as it works the entire body while being gentle on the joints. It strengthens the cardiovascular system and promotes muscle recovery.
Frequently Asked Questions (FAQ)
Do you always have to do cardio after strength training?
It's not absolutely necessary to do cardio after every strength training session. If your main goal is to build muscle, cardio may be less important. However, if you want to lose fat or improve your endurance, it's a valuable addition to your routine.
Can I jump right into a HIIT workout after an intense strength training session?
After a very intense strength training session, doing HIIT right away could put too much strain on your body. It's a good idea to take a short break before doing an intense interval workout.
How much cardio is too much after strength training?
Too much cardio can impair muscle recovery and increase the risk of overtraining. Make sure your cardio workouts don't negatively affect your recovery. About 20 to 30 minutes of moderate cardio is usually ideal.
Can I do long cardio sessions after strength training?
Long cardio sessions (more than 30 minutes) aren't necessarily harmful, but they can slow down muscle recovery, especially if they're too intense. If your goal is to burn fat, shorter, moderately intense sessions are often just as effective.
Can I do cardio after every strength training session?
Yes, you can incorporate cardio into every workout day. Just make sure you give your body enough time to recover and don't do intense cardio every day if you're trying to build muscle.
Conclusion: The Optimal Duration for Cardio After Strength Training
The ideal duration for cardio after strength training depends on your personal goals and your fitness level. For most athletes, 20 to 30 minutes of moderate cardio is ideal for burning fat and improving endurance without compromising muscle recovery. High-intensity cardio or HIIT can also be effective, but it requires adequate recovery time. Be sure to find the right balance to benefit from both strength training and cardio.