The magnitude of the moment of a force acting about a point or axis is directly proportinoal to the distance of the force from the point or axis. It is defined as the product of the force (F) and the moment arm (d).
The student athlete child between the ages of 9 and 13 should consume between 2,000 and 2,600 calories, and if they are between 14 and 18 they should consume between 2,800 and 3,200 calories. It is also important that the types of calories the athlete consumes are balanced between carbohydrates, proteins, and fats.
Consume more calories than your caloric expenditure in order to see muscle gain. For example, if you're a 150-pound man whose body fat is between 18 and 22 percent, you have a BMR of 1,620 calories. As a weightlifting athlete at the same weight, you should consume at least 2,120 calories per day to gain muscle.