Rowing – on the water or on an erg machine – is a whole-body workout that originates in your core.

Rowing is a fun, active, low-impact sport that exercises most of the major muscle groups. It improves overall body conditioning, helps reduce blood pressure and aids in weight loss. Many find its rhythmic motion provides an outlet to relieve stress, also. Core strength is the basis for good rowing. Your core muscles provide a work center for your body, transfer power from the lower body to the upper body and to the oar's blade. Therefore, the stronger your core, the more effective your transfer of power. You'll notice that when you're rowing – either in a skull or on an ergometer, you will slouch when you get fatigued. As you tire, your form suffers. While this is not entirely avoidable, having a strong core helps you maintain your form even as lose your energy. Similarly, strong abdominal and back muscles will help protect against lower back pain, strain and injury.

Great workout for the guys ...and very much appreciated by the ladies

thanks for the info ,steve..