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¥DÃD¡GPower Factor ¹ï­«¶q°V½m§@¬°¤@­Ó«ü¼Ð¦³®Ä¶Ü?
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Power and work output are believed to be important parameters that can stimulate muscular hypertrophy. The developers of Power Factor training defined two parameters based on the mechanical definition of power to aid athletes in designing their workouts :

Power factor (PF): A measurement of the intensity of muscular overload during an exercise

PF = W / T

W = Total amount weight lifted in lbs (from multiple reps)
T = Total time in minutes

Power index (PI): A measurement of the duration of a given power factor

PI = (W^2) / T * 10^(-6)
= W * PF * 10^(-6)

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