Caloric expenditure refers to the number of calories a person burns through various activities and bodily functions, which is crucial for maintaining or altering body weight. It is influenced by factors such as basal metabolic rate, physical activity, and the thermic effect of food, and must be balanced with caloric intake for effective weight management.
Lean body mass (LBM) is the total weight of your body minus all the weight attributed to fat, encompassing muscles, bones, organs, and water. Maintaining a healthy LBM is crucial for overall metabolic health, physical strength, and functional performance.
The Harris-Benedict Equation is a formula used to estimate an individual's basal metabolic rate (BMR) and daily caloric needs based on factors such as age, sex, weight, and height. It is widely used in nutrition and fitness to tailor dietary plans and understand energy expenditure for weight management and health optimization.
The Mifflin-St Jeor Equation is a formula used to estimate an individual's Basal Metabolic Rate (BMR), which is the number of calories required to keep your body functioning at rest. It is considered more accurate than previous formulas like the Harris-Benedict Equation, especially for modern populations, and is widely used in nutritional and health assessments.
Thyroid metabolism refers to the processes by which the thyroid gland regulates energy expenditure, growth, and development through the production and release of thyroid hormones, primarily thyroxine (T4) and triiodothyronine (T3). These hormones influence metabolic rate and are crucial for maintaining homeostasis, affecting nearly every cell in the body by modulating protein synthesis, oxygen consumption, and thermogenesis.
Fitness evaluation is a systematic process used to assess an individual's physical health, performance, and capabilities, often as a basis for designing personalized exercise programs. It involves a variety of tests and measurements that gauge different aspects of fitness, including cardiovascular endurance, muscular strength, flexibility, and body composition.