Cardiovascular fitness is an important part of staying healthy. It means how well your heart and lungs work when you exercise. If you want to get better at activities like running, swimming, or biking, improving your cardiovascular fitness can help a lot. SARMs, or Selective Androgen Receptor Modulators, are supplements that some people use to boost their athletic performance. In this article, we’ll look at how SARMs can help improve your heart health and fitness, the best SARMs for endurance, and what you need to know to stay safe. You can also learn more about the best SARMs stack for your goals.

Key Takeaways

  • Best SARMs for Cardiovascular Fitness: Cardarine (GW-501516), Ostarine (MK-2866), Andarine (S4), RAD-140 (Testolone), and S-23 are the top SARMs that can help you get better at cardio.
  • How SARMs Help: SARMs help your body burn fat, improve endurance, and keep muscles strong, which can all help improve your cardiovascular fitness.
  • Safety Tips: Always use SARMs carefully, follow recommended dosages, and consider taking breaks (cycling) to avoid side effects.

What Are SARMs?

SARMs are a type of supplement that helps the body in similar ways to anabolic steroids but with fewer side effects. They work by attaching to special receptors in your body called androgen receptors. These receptors help your muscles grow, burn fat, and stay strong. SARMs are designed to focus mostly on muscles and fat, unlike steroids, which can affect other parts of the body too. To get the most out of your SARMs cycle, make sure to also focus on fat loss and energy.

How Do SARMs Work?

SARMs work by attaching to androgen receptors in muscles and fat cells. When they attach, they send signals to your body that can help build muscle and burn fat. The good thing about SARMs is that they’re more specific, meaning they mostly help muscles and fat without causing too many side effects like steroids can.

How SARMs Can Help Your Heart and Fitness

  • Burning Fat: Some SARMs help your body burn fat more easily. This can help improve your heart health by lowering body fat. For more details on fat loss while maintaining muscle, check out our guide on fat loss and muscle preservation.
  • Improving Endurance: SARMs can make you less tired during exercise, which helps you keep going longer in cardio activities like running or swimming. You can also see how to overcome fitness plateaus in our overcome muscle plateaus article.
  • Keeping Muscles Strong: SARMs can help you build and keep muscle while doing cardio. This means you don’t lose muscle strength when you’re working on your fitness.

Top SARMs for Improving Cardiovascular Fitness

1. Cardarine (GW-501516)

What Is Cardarine?

Cardarine, also called GW-501516, is a supplement that helps your body burn fat and increase your endurance. It works by helping your body use fat for energy instead of carbs, which helps you keep going longer during workouts. Cardarine is a key part of health optimization for many athletes and fitness enthusiasts.

How Cardarine Helps with Cardiovascular Fitness

  • Improves Endurance: Cardarine helps your body work harder for longer by using fat for energy, which boosts your endurance during activities like running or cycling.
  • Burns Fat: It helps you burn fat, which is good for your heart and overall health. To learn more about improving fat loss, check out fat loss and muscle preservation.
  • Boosts Circulation: Cardarine also helps improve blood flow, which helps get oxygen to your muscles, reducing fatigue during exercise.

Recommended Dosage and Cycle

  • Dosage: 10-20 mg per day
  • Cycle: 8-12 weeks

Possible Side Effects

Cardarine is generally safe, but it can cause liver problems if used for too long. Always talk to a doctor before starting any new supplement. To help with your overall performance, consider using a fat loss and energy stack.

2. Ostarine (MK-2866)

What Is Ostarine?

Ostarine is a popular SARM that helps keep your muscles strong while you lose fat. It’s known for improving endurance and making your muscles more resistant to breakdown during intense workouts. It’s a great option for people looking to maintain strength while cutting fat.

How Ostarine Helps with Cardiovascular Fitness

  • Burns Fat and Builds Muscle: Ostarine helps you burn fat while keeping your muscles strong, which is good for cardio fitness.
  • Improves Endurance: By protecting your muscles, Ostarine allows you to exercise for longer periods without getting too tired.

Recommended Dosage and Cycle

  • Dosage: 10-20 mg per day
  • Cycle: 8-12 weeks

Possible Side Effects

Ostarine can lower your natural testosterone levels, so it’s important to take breaks and consider Post-Cycle Therapy (PCT) afterward. If you’re looking for more tips on muscle maintenance, check out our guide on how to maintain muscle while cutting.

3. Andarine (S4)

What Is Andarine?

Andarine, or S4, is a SARM that helps burn fat and build lean muscle. It’s great for people looking to improve their endurance while keeping a lean physique.

How Andarine Helps with Cardiovascular Fitness

  • Burns Fat: Andarine helps you burn fat, which can make you look leaner and improve your heart health.
  • Improves Performance: It helps improve endurance during cardio activities by preserving muscle mass.
  • Improves Circulation: By reducing fat, Andarine improves blood flow, which makes exercise feel easier.

Recommended Dosage and Cycle

  • Dosage: 25-50 mg per day (split into two doses)
  • Cycle: 6-8 weeks

Possible Side Effects

Some users may experience temporary vision problems, like yellow-tinted vision, which go away once the cycle ends. Learn how to prevent muscle atrophy and maximize gains by reading our guide on preventing muscle atrophy.

4. RAD-140 (Testolone)

What Is RAD-140?

RAD-140, also known as Testolone, is a powerful SARM that builds muscle and boosts endurance. It’s great for people who want to push harder in their workouts without building too much bulk.

How RAD-140 Helps with Cardiovascular Fitness

  • Improves Endurance: RAD-140 helps you exercise longer by reducing fatigue.
  • Builds Strength: It boosts strength and stamina, which helps with endurance activities like running and swimming.

Recommended Dosage and Cycle

  • Dosage: 10-20 mg per day
  • Cycle: 8-12 weeks

Possible Side Effects

RAD-140 can lower your natural testosterone levels, so a break and Post-Cycle Therapy (PCT) is important afterward. For more information on PCT, you can check out our page on Post-Cycle Therapy.

5. S-23

What Is S-23?

S-23 is a very strong SARM that helps burn fat and keep your muscles strong. It’s effective for athletes looking to boost their endurance and get leaner.

How S-23 Helps with Cardiovascular Fitness

  • Boosts Endurance: S-23 can help you push through tough cardio workouts by improving stamina.
  • Burns Fat: It helps you lose fat quickly, which is good for heart health and overall fitness.
  • Improves Blood Flow: By lowering fat levels, S-23 can improve circulation, which helps oxygen reach your muscles faster.

Recommended Dosage and Cycle

  • Dosage: 10-20 mg per day
  • Cycle: 8-10 weeks

Possible Side Effects

Like other SARMs, S-23 can lower testosterone levels, so PCT is needed after use. If you’re concerned about natural testosterone production, check out our related article.

How SARMs Help Improve Cardiovascular Fitness

SARMs can help improve cardiovascular fitness in several ways:

  • Burning Fat: SARMs like Cardarine and Ostarine help your body burn fat, which improves heart health and overall fitness.
  • Better Endurance: SARMs like RAD-140 and Andarine help you exercise for longer periods without getting tired. Learn more about cycling SARMs for maximum gains.
  • Faster Recovery: By helping your muscles recover quicker, SARMs allow you to train more often, leading to better fitness results.
  • Improved Circulation: Some SARMs boost blood flow, allowing more oxygen to reach your muscles during exercise, reducing fatigue.

Safety Considerations and Side Effects

Common Side Effects of SARMs

Even though SARMs are safer than anabolic steroids, they can still cause some side effects:

  • Testosterone Suppression: SARMs can lower your natural testosterone levels, which can affect your mood and energy. PCT can help restore testosterone after cycling SARMs.
  • Liver Issues: Some SARMs can put stress on your liver if used for too long, so always take breaks and monitor your health.
  • Vision Problems (Andarine): Some people report vision changes, such as a yellow tint, but this is usually temporary. For tips on avoiding common mistakes, check out common mistakes with SARMs.

Post-Cycle Therapy (PCT)

After using SARMs, you might need to do PCT to help your body recover. PCT helps bring your hormone levels back to normal, especially if your testosterone levels were affected. To understand PCT better, you can read more on Post-Cycle Therapy.

How to Choose the Right SARM for Cardiovascular Fitness

Choosing the right SARM depends on your goals:

  • For Endurance: If you want to increase endurance, Cardarine and RAD-140 are great choices.
  • For Fat Loss and Lean Muscle: Ostarine and Andarine are effective for burning fat while keeping muscles strong.
  • For Boosting Stamina: S-23 and RAD-140 can help you push harder during cardio workouts.

Conclusion

SARMs can be a useful tool for improving cardiovascular fitness by helping with fat loss, endurance, and muscle preservation. However, it’s important to use them carefully and follow the recommended guidelines. Always talk to a healthcare professional before starting any new supplement and remember to take breaks between cycles to stay safe.

FAQ

Q1: Are SARMs safe for improving cardiovascular fitness?

SARMs are generally safer than anabolic steroids, but they can still cause side effects like lowering testosterone levels or affecting the liver. Use them carefully and take breaks.

Q2: How long should I cycle SARMs for cardiovascular benefits?

Most SARMs cycles last between 6 and 12 weeks. It’s important to take breaks to avoid side effects.

Q3: Can SARMs help with endurance for athletes?

Yes! SARMs like Cardarine and RAD-140 can help you improve endurance by increasing fat burning and reducing fatigue during exercise.

Q4: What side effects should I watch out for when using SARMs for cardiovascular fitness?

Some possible side effects include testosterone suppression, liver strain, and vision changes (with Andarine). Always monitor your health during a cycle.

Q5: Do I need to take any supplements while using SARMs?

You should take liver support supplements and consider Post-Cycle Therapy (PCT) after finishing a SARM cycle to help your body recover.

Q6: What’s the difference between SARMs and traditional steroids for cardiovascular fitness?

SARMs are more selective and target muscles and fat, while steroids affect many parts of the body. This makes SARMs safer but still effective for improving cardiovascular fitness.