as a wheelchair user myself, i'd like to bring up a point that is glossed over, but not sufficiently highlighted in this article. Wheelchair push count is not

as a wheelchair user myself, i'd like to bring up a point that is glossed over, but not sufficiently highlighted in this article. Wheelchair push count is not as valuable a metric as the geometry/ergometry of the push itself. Wheelchair related RSI is not usually a matter of volume, it's usually caused by one of many factors that can cause a wheelchair users' push geometry to change for the worse. Underinflated tires, underinflated seat cushion that changes overall torso height in the seat, poorly adjusted wheelchair, wheelchairs that haven't been re-fit for the user in a very long time (this is common in the U.S., as many wheelchair users stick with the unit given to them out of the hospital for a long time, decades even, due to insurance/healthcare woes) -- these are all factors that are a greater contributor to push-related RSI than anything measurable by sheer counting. So : wheelchair push count is a nice feature for athletes and training-tracking -- but chair ergonomics is a much more important health issue; if these devices are being pushed outside athletic circles I think they should spend a good chunk of time studying and considering the problems of ergonomics and how to track those kind of metrics over time. bar napkin idea : pay attention to the push duration rather than the push volume. per-push-duration could give hints on things like underinflated tires -- the 'wind-up' motion that begets the push will take longer due to the increased energy expenditure. P.S. somewhat ironically, using a manual push wheelchair that is set up in an 'athletic' profile at all (maybe lots of camber, or maybe lots of seat 'dump' in the build) almost always prohibits the user from wearing anything on their wrist without continually bashing it into the hand-rim during their power stroke. Watches/bracelets/bangles are , in my experience, a very uncommon fashion accessory for manual wheelchair users for that reason -- especially those of which have impaired neurological movement in their hands; folks with those kinds of issues generally push the handrim with the side of their wrist due to a lack of grip -- right where a watch would sit normally.