This has stirred my interest in getting a rowing machine again… used to love rowing at university but, like everyone else has said, technique is REALLY important.
Concept IIs are very robust – they have to be, when you see the flailing abuse they get at the hands of the muscle marys at the gyms!
Helios sounds like he’ll be the best person to talk to about technique, but for starters when you’re “pulling” on the handle, imagine you’re actually lifting a heavy barbell off the floor, to chest height. You’d start from a squat by extending your legs and keeping your back straight, then straightening up and finally using your arms to pull the bar up to your chest. Then you’d do the opposite to lower the bar to the floor.
Turn that on its side and that’s pretty much what you should do when rowing – and you start to understand why it tends to be called a push or a drive rather than a pull. Your big muscles work hard first, your legs, buttocks and back, and your arms are used at the finish. Then arms out, bend forward and then bend the legs once the bar is over your knees.
Also, once you’ve got the technique a bit right, try and REALLY drive it – a ratio of about 1:4 drive to return (i.e. DRIVE, then spend four times that time returning the bar to the start position) is fairly good, from what I remember, and allows you to get the best efficiency and power from your rowing. Keep the stroke rate low (18-22) and focus on your technique and power. You’ll soon see why the gym bunnies rattling up and down are not doing anything useful while they look stupid.
Sorry about the long post. I haven’t looked for a long time, but check out the Concept 2 site for much more information about technique and training and prices. Hope this helps.