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Work and weight loss: teaching nutrition students the work equivalent of energy stored in a pound of fat (adipose).

Few nutrition students or university faculty can define the kilocalorie in terms of work (ft‐lbs or nt‐m). Much physical work is done against gravity, such as in stair‐climbing, walking uphill, and weight‐lifting. Therefore, an equation was developed that calculates energy expended during physical work against gravity based on mass lifted (M, body mass plus clothes), the acceleration of gravity (g), vertical distance (h), a value for muscular efficiency (~20–30%), the number of repetitions carried out (r), and the caloric equivalent of work done against gravity (SI units): Work=M∗g∗h∗r/(4186∗muscular_efficiency).