Final answer:
Muscular balance can be achieved by alternating exercises that focus on opposing muscle groups and varying the intensity during a resistance training session. This involves a mix of isotonic contractions and progressive overload to engage all muscle fibers and improve both muscular strength and endurance.
Step-by-step explanation:
Muscular balance in a resistance training session may be achieved by alternating exercises that use opposing muscle groups. This concept is known as working antagonistic muscles, such as the biceps and triceps for arm movements. To achieve this balance, one might include a pattern of physical exercise that involves isotonic contractions with periods of vigorous muscular work through concentric and eccentric contractions, complemented with longer periods of more varied intensity work.
Resistance exercise typically focuses on fast-twitch muscle fibers (FG fibers) which are important for short, powerful movements that lead to muscle hypertrophy. However, relating to muscular balance, it is crucial to vary the exercise intensity and types to ensure that all muscle fibers are engaged and to promote overall muscular strength and endurance. This means including a mix of anaerobic, high-intensity exercises, and more moderate resistance training.
To continue improving muscular strength, the intensity of the resistance exercises must be progressively increased. This is achieved by adding heavier loads or increasing the resistance over time, known as progressive overload. Balancing exercises that work various muscle groups and continually adapting the challenge will help maintain muscular balance.