Aerobic exercise and muscle balance

Aerobic exercise isn’t the opposite of strength training. It’s a necessary partner to it. If your muscles are tight and your body moves stiffly, even a strong biceps or a wide back won’t save your posture or how you feel.

Why do aerobic exercise and stretching matter?

In the gym, it’s easy to focus on what the mirror shows. A bigger chest, a stronger back, more weight on the bar. But everyday body posture often tells a different story. The shoulders slump forward, the pelvis tilts, your stride gets short and your back stays tense.

Here is a simple truth: a trained muscle isn’t necessarily a balanced muscle. When one muscle group does too much work all the time and another falls behind, the body starts compensating one way or another. Sometimes it shows up as a “crab” or “ant” posture. Sometimes the body only signals the problem through pain or injury.

Tight muscles restrict normal joint mobility. They can change body position, posture and the direction of movement. A tilted pelvis is a good example: at first it seems like a minor annoyance, but later it can grow into a more serious orthopedic problem. In the worst case, your time, money and nerves go into visits to the therapist instead of into training.

An overly tense muscle is also more prone to tearing. If a muscle is already short, stiff and tired, a strong contraction can end in a tear. In Latin this is called ruptura. It sounds grand, but it feels anything but.

How does muscle balance work in practice?

Muscle balance doesn’t mean all muscles have to be equally strong. The body doesn’t work that way. Balance means, rather, that the joint can move freely, the agonist and antagonist do their jobs, and no area has to keep paying for another.

In addition to strength exercises, it’s worth doing stretches. Longer stretching usually suits the time after strength training better, because it helps the muscle calm down and relax. At the start of a workout, stretching should be short and controlled. The goal isn’t to make yourself “soft” but to open up movement enough that the exercise comes out cleaner.

Hold a stretch for 20-30 seconds. That number is easy to remember and enough for the body to let go of some tension. It matters less whether you use static stretching or the contract-relax method. What matters is that the stretch doesn’t cause pain.

Pain is not a mark of a quality stretch. If you hold your breath, your face scrunches up and your body starts trying to escape the position, the pressure is too much. A stretch should be noticeable but tolerable. Think of a calm opening up, not a fight.

The PNF stretching system

One effective stretching technique is the PNF stretching system. Many professional athletes use it, especially when they need to target deep muscles or smaller muscle groups. PNF can be suitable for preventing sports injuries, for overuse syndromes and during the recovery phase.

The downside of this method is a practical one: doing it well requires outside help. Usually that means a sports therapist or sports masseur. Üllari Ots, a therapist at Rebalans Massage, stressed in the original text precisely that the technique is effective, but shouldn’t be done carelessly or experimented with alone.

Aerobic exercise alongside the gym

Aerobic exercise means training that puts a load on the respiratory and circulatory systems. The most common examples are walking, running, swimming, skiing and cycling. In the gym, too, you can do exercises that put the heart and lungs to work.

Why does this matter at all for someone who does strength training? Because better general endurance helps you recover. You breathe better under training load, your heart rate settles faster and training doesn’t feel so “stuffy.” Aerobic work doesn’t have to mean long suffering. Often consistent, moderate movement is enough.

A beginner should choose based on what they enjoy and what’s available. If walking suits you, start with walking. If cycling feels more comfortable, pick that. Rushing straight into running isn’t always the best idea, because your lower limbs can be put under too much load. A safer start is often simply walking.

Practical tips for maintaining muscle balance

Take an honest look at your training. Do you only do the exercises that go well for you? Does stretching always get left for “next time”? Does the aerobic part vanish from your plan the moment time runs short? These are small choices, but repeated over months they change the body.

• Start your training with a short mobility section, especially around the joints you’re about to load.
• Stretch calmly after strength training, not to the point of pain.
• Hold a stretch for 20-30 seconds and breathe evenly the whole time.
• Add aerobic activity to your plan that you can realistically keep up consistently.
• If your posture, pelvis or shoulders are noticeably pulled out of line, ask a specialist for help.

Training should ultimately improve your life, not make your body stiffer. If your strength increases but your movement gets worse, something in the program is off. A good program leaves room for strength, mobility and heart health alike.

FAQ

Should you stretch before or after strength training?

Before a workout, a short, light stretch that opens up your mobility is a good fit. A longer, relaxed stretch works better after strength exercises, when the aim is to relax the muscles.

Does aerobic exercise interfere with muscle growth?

Moderate aerobic exercise doesn’t have to interfere with muscle growth. If anything, it supports recovery and overall work capacity, as long as the training load is sensible and your strength training stays in line with your goal.

When should you see a therapist?

If pain keeps coming back, a joint isn’t moving normally or your posture has clearly changed, it’s worth asking for help. The same applies if a stretch or an exercise makes things worse.

Balanced training is the key to success! ArtGym

Author: Üllari Ots

Source: WHO – physical activity.