The rowing machine, like the cross trainer, is an excellent all round tool for later knee rehabilitation. They are, however, pricy.
Dr Sheila Strover is the founder of the KNEEguru website. Although not a knee surgeon, she has a sound understanding of knee surgery and rehabilitation acquired during her years as an anaesthetist, a knee...
The KinCom isokinetic machine is a sophisticated apparatus for both exercising the knee and for determining various parameters of muscle strenth.