Why is training frequently important?

Training frequency—the number of times a muscle group is worked per week—plays a key role in muscle development. A variety of studies have examined this topic, and the consensus is clear: training more often can lead to greater improvements in both muscle size and strength. This means that increasing training frequency allows for more frequent stimulation of muscle protein synthesis, the process essential for muscle repair and growth. Higher frequency typically allows you to distribute the same training volume across multiple sessions, reducing fatigue and improving performance during each workout. Research indicates that when total training volume is equal, spreading it across multiple sessions may enhance recovery and adaptation. Training each muscle group two to three times per week can lead to significantly greater strength and hypertrophy compared to once-weekly training. Training muscles two to three times per week resulted in approximately 3.1% greater muscle growth than training them once per week.

Exercise can reduce your risk of major illnesses, such as coronary heart disease, stroke, type 2 diabetes and cancer, and lower your risk of early death by up to 30%. People who do regular physical activity have a lower risk of coronary heart disease and stroke, type 2 diabetes, bowel cancer, breast cancer in women, early death, osteoarthritis, hip fracture, falls, depression, dementia, including Alzheimer's disease. Research also shows that physical activity can boost self-esteem, mood, sleep quality and energy, as well as reducing your risk of stress. To stay healthy, the UK Chief Medical Officers' Physical Activity Guidelines state that adults should try to be active every day and aim to do at least 150 minutes of physical activity over a week, through a variety of activities. For any type of activity to benefit your health, you need to be moving quick enough to raise your heart rate, breathe faster and feel warmer. There is substantial evidence that vigorous activity can bring health benefits over and above that of moderate activity.