Logan Steele
Cardio exercises are a great way to improve your overall health and fitness. They are performed to increase cardiovascular performance and endurance, strengthen muscles, and burn calories. Cardio exercises include a variety of activities such as walking, running, cycling, swimming, and skipping, which target different muscle groups in the body. The primary muscles targeted by cardio include the heart and lungs, as well as large muscle groups in the legs and arms. Additionally, specific cardio exercises like skipping and stadium stairs target the calves, while others like kickboxing engage the core and upper and lower body muscles.
| Characteristics | Values |
|---|---|
| Main target | Heart and lungs muscles |
| Secondary targets | Large muscles in the body, including legs and arms |
| Effect on heart | Strengthens the heart muscle, improves its efficiency, and reduces resting heart rate |
| Effect on lungs | Improves oxygen exchange efficiency, resulting in improved endurance |
| Effect on hormones | Increases growth hormone and testosterone levels, aiding in muscle building |
| Effect on bones | Increases bone density |
| Effect on metabolism | Increases metabolic rate, aiding in fat loss |
| Effect on immune system | Stimulates the immune system, reducing susceptibility to infections and improving overall health |
| Effect on mental health | Releases endorphins, reducing stress, depression, anxiety, and tension |
| Specific muscle groups | Glutes, quadriceps, hamstrings, hip flexors, calves |
| Cardio exercises | Running, cycling, swimming, walking, skipping, stadium stairs, cardio kickboxing |
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What You'll Learn
Heart and lungs
Cardio exercises are a great way to improve the function of your heart and lungs. The main purpose of cardiovascular exercise is to improve the function of these organs, reducing the risk of diseases such as diabetes, heart disease, and certain types of cancer.
During cardio, your heart rate increases, which means more oxygenated blood moves through your body. Your heart muscle contracts repeatedly, strengthening it so that it can pump more efficiently. As your heart rate increases, so does your breathing rate. Your lungs work with your heart to supply oxygen-rich blood to the muscles being used. Over time, your lungs become more efficient at exchanging oxygen for carbon dioxide, and you will find that you don't breathe as heavily during workouts. Your diaphragm, a muscle that expands and contracts to allow the lungs to take in and release air, also benefits from this.
Cardio exercises also increase your high-density lipoprotein, or "good" cholesterol, and reduce low-density lipoprotein, or "bad" cholesterol. This helps to keep plaque from clogging your arteries, which can lead to coronary heart disease. Additionally, cardio can lower blood pressure and reduce the risk of obesity, helping to maintain a healthy weight.
Cardio exercises are a great way to improve the health of your heart and lungs, reduce the risk of diseases, and improve your overall fitness and health.
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Arms and legs
Cardio exercises are great for improving cardiovascular health and burning calories for weight loss. The main purpose of cardiovascular exercise is to improve the function of the heart and lungs, thereby reducing the risk of diseases such as diabetes and heart disease. The heart and lung muscles are the primary targets of cardio, while the large muscles in the arms and legs are secondary targets.
Arms
The arms are engaged during cardio exercises for stability and momentum. For example, during running, the arms can be swung from side to side to maintain balance. Marching in place with arm movements is another cardio exercise that works the abdominal muscles. Rowing is a full-body cardio workout that works the biceps and triceps in the arms.
Legs
Cardio exercises that target the legs include walking, running, cycling, using an elliptical machine, and step machines. These exercises can be incorporated into a HIIT workout to improve muscular endurance in the legs. For example, box jumps are a plyometric exercise that promotes muscle growth and lower-body power development. Other exercises that can be added to a leg day routine include lunges, squats, and deadlifts.
It is important to note that while cardio exercises can target the arms and legs, they may not be sufficient for muscle growth in these areas. To build muscle, it is recommended to focus on specific strength workouts and compound movements that provide more resistance or stimulus to the targeted muscle groups.
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Bones and brain
Cardio exercises are known to affect not just muscles but also bones, the brain, and the body's respiratory and circulatory systems.
Bones
Exercise is important for building strong bones, especially when we are younger, and it is essential for maintaining bone strength as we age. Bones are living tissues that change over time in response to the forces placed upon them. When you exercise regularly, your bones adapt by building more bone and becoming denser. This improvement in bone density can help prevent osteoporosis, a condition where bones become weak and fragile, which often occurs in women after menopause and in older men. Weight-bearing exercises and strength-training exercises are particularly effective for building strong bones. Walking, for example, can improve bone strength in the legs and spine.
Brain
Cardio exercises are known to have a positive impact on the brain. Firstly, they stimulate brain elasticity by encouraging the formation and growth of new connections between brain cells. This enhances cognition and improves brain health. Cardio also helps reduce the brain's response to stress and anxiety by decreasing inflammation. It can further promote mindfulness, as the monotonous movements of certain cardio exercises, such as running and cycling, can free up a part of the mind, allowing creative thoughts to emerge. Additionally, several studies have found that cardio strengthens the hippocampus, the part of the brain responsible for memory, thus reducing the risk of memory loss, dementia, and Alzheimer's.
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Calf muscles
The calf muscle is a vital yet often overlooked muscle group. It is made up of two main muscles: the gastrocnemius and the soleus, which come together above the heel and attach to the Achilles tendon. The gastrocnemius is a lower leg muscle that sits just under the skin and makes up the bulk of the calf. The soleus is a wide, flat muscle that runs deep underneath the gastrocnemius, starting below the knee and connecting to the heel. These muscles work together to flex the knee and foot, enabling us to walk, run, jump, and stand.
Cardio exercises can effectively target the calf muscles, helping to build strength and size. Here are some cardio activities that can be incorporated into your routine to specifically target the calves:
- Skipping: This activity emphasizes the development of muscular force in the calves, providing a great cardiovascular workout while burning calories at an accelerated rate. Try variations such as one-foot skips, double skips, moving skips, or increasing the pace.
- Uphill walking: Walking on an incline increases the demand on the calves as they work harder to propel you forward. This can also be applied to running to add a calf-strengthening component.
- Stadium stairs: Climbing stairs challenges the calves to propel the body upwards, targeting the muscles in a similar way to skipping. Using steps with a moderate rise and taking on each step with a single leg can help avoid injuries.
- Swimming: Swimming is a low-impact activity that works the calves and the rest of the leg muscles. It is a safe way to strengthen the calves, especially during injury recovery, as it avoids putting excessive stress on the muscles and joints.
- Jumping rope: This explosive cardio activity helps develop stronger and more muscular calves. It creates micro-tears in the muscle fibres, stimulating growth and strengthening the calves.
In addition to cardio exercises, targeted calf-strengthening exercises can also be incorporated into your routine. Here are some examples:
- Calf raises: This exercise can be performed on a stair or step by standing on the balls of your feet and lowering and raising your heels. Adding weight or performing the exercise on one leg can increase the intensity.
- Seated calf raises: This variation of the calf raise is performed from a seated position and targets the soleus muscles.
- Lunges: Lunges engage the calf muscles by stabilizing the ankles and knees.
- Biking: Increasing the resistance when biking or cycling targets the calves as they work harder to stabilize the lower body.
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Core muscles
While cardio is often associated with burning calories and improving heart function, it also targets several muscle groups, including the core.
The core muscles are essential for balance and stability during cardio exercises. They provide a stable foundation for the body to move efficiently and help protect the spine from injury. Engaging the core muscles during cardio activities can improve overall stability and balance, enhance performance, and reduce the risk of injuries.
One example of a cardio exercise that targets the core muscles is running. While running primarily engages the legs, including the quadriceps, hamstrings, calves, and glutes, it also activates the core for stability and posture control. The core muscles help keep the torso stable, allowing for a more efficient running form and reducing the risk of lower back pain and injuries.
Swimming is another excellent cardio exercise that targets the core. It provides a full-body workout, engaging multiple muscle groups, including the core, shoulders, chest, arms, back, glutes, and legs. The freestyle stroke, in particular, is known for targeting the back, shoulders, and core muscles. Swimming is a low-impact activity that reduces strain on joints, making it accessible to people of all ages and fitness levels.
Additionally, cycling, whether outdoors or on a stationary bike, is a cardio exercise that engages the core. While the primary muscles worked are the legs, including the quadriceps, hamstrings, calves, and glutes, the core is activated for balance and posture control. The upper body, including the arms and shoulders, also come into play, especially during uphill rides or when facing higher resistance.
For those who prefer indoor cardio equipment, the elliptical machine is a popular option that targets the core. It works the obliques, transverse abdominals, and rectus abdominis, strengthening the core while also providing a low-impact workout that is easier on the joints compared to running.
Overall, by incorporating cardio exercises that target the core muscles, individuals can improve their stability, balance, and posture while also strengthening their heart and improving their overall health.
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Frequently asked questions
Cardio targets the heart and lungs, as well as large muscle groups in the legs and arms.
Running, cycling, swimming, walking, and kickboxing are all cardio exercises.
Running and cycling work the legs, while swimming works the arms, shoulders, and back muscles. Cardio kickboxing works the core, and walking and running can also target the calves.
