How often must training be performed according to the principle of regularity?

The principle of regularity emphasizes the need for consistent and frequent practice to achieve and maintain fitness goals. Engaging in training several times weekly fosters adaptation and progress in physical fitness. This frequency allows individuals to build endurance, strength, and skill, benefiting from the cumulative effects of exercise while also providing adequate recovery time which helps to prevent injuries.

Training only once a week or only during weekends would not sufficiently stimulate the body for improvement, as the long intervals between sessions may lead to a lack of momentum in enhancing fitness levels. Similarly, daily training may not be suitable for everyone, as it can lead to overtraining and insufficient recovery time, highlighting that frequency should be balanced and tailored to individual needs and fitness levels. Therefore, training several times a week strikes the right balance, making it the most effective choice in adhering to the principle of regularity.