When I went through cardio/rehab ,  my favorite piece of equipment was the rower. The P/A trainer said it was in his opinion the most bang for the buck. So I bought my own ..... and actually used it for a number of years ...... until sciatica showed up , to join my arthritis [when i had that any form of exercise was just out of the question] . Now that, that is fading somewhat I am starting back using it again. I just wondered if anyone uses one ? It is of course a seated , non-weight bearing movement so it's not too bad ...... starting back slowly. Hoping I can stay with it.