Of the methods listed below, which is the most accurate for measuring metabolic energy expenditure during a bout of exercise in a specific subject?
A.) Measurment of heart rate using a stopwatch
B.) Measurement of VO2 using respirometry
C.) Assessment of work rate from the readout of an exercise bike
D.) AcSM (2000) equations for predicting V02
How much work is done against gravity as a 50 kg barbell is raised from the floor to a height of 2m above the floor?
A.) 25 J
B.) 100 J
C.) 200 J
D.) None of the above
