Originally Posted by ddigangi
heavy weight, low reps = mass building
middle range to achieve tone and mass
low/mid weight, mid/high reps = tone and development
your calorie consumption has to do with mass building, leaning out (tone) not sure what you mean by development.
reps dont mean much in those terms, but consistency and progressively adding more weight.
though high reps tend to ad more endurance and lower reps tend to increase max strength (which can help growth provided there is a calorie surplus)