Regular strength training can significantly affect metabolic rate by increasing muscle mass. Muscle tissue is more metabolically active than fat tissue, meaning that the more muscle one has, the higher their resting metabolic rate will be. This increase can lead to enhanced calorie burning even at rest, supporting weight management and fat loss. Additionally, strength training can help improve insulin sensitivity, further aiding metabolic health. Incorporating resistance training into a fitness regimen can, therefore, be crucial for individuals seeking to boost their metabolic efficiency and overall health.