Originally Posted by Yael Grauer
Why 12-16 weeks?
Because that's enough time to see genuine results. Not saying that's the longest one should ever stay on a strength cycle, but if you break your training into smaller cycles, it allows you to regularly evaluate progress, effectiveness, etc. and make necessary adjustments. Too often people go on a 'cycle', decide after 2 weeks that it's not working, completely change it, decide another 2 weeks later that the new one isn't working, and repeat that for years... with no real progress. Mike has a million times something to the effect that the best program is the one you commit to--pretty true.