Alpha X Factor A great way to work around muscles that stop you from performing certain exercises is to pre-exhaust. For example, when performing rows, you may find that your biceps are worn out long before your lats. Using an exercise that isolates your lats first, a straight-arm pull-down for example, gives your lats a harder workout than your biceps. As a result, your lats will be pre-exhausted, and when you do the rows, your biceps shouldn't be limiting you.
Read More >>> http://www.makehealths.com/alpha-x-factor/