An hour a week of heavy (for the lifter’s current capability) deadlifting or squatting in three 20 minute sessions will definitely get serious results with good

An hour a week of heavy (for the lifter’s current capability) deadlifting or squatting in three 20 minute sessions will definitely get serious results with good programming. One will see increases in muscle mass, bone density, and improved cardiovascular health from just that. Granted it would be beneficial to do more, but point is even an hour a week can be an effective training stimulus.