At the same cadence and torque, and hence at the same power output, which generally presents the lower repetitive strain injury risk: pedalling seated, or out of the saddle?
How does the distribution of forces on the body and the risk of injury change as force on the pedals goes up, both for seated and for out of the seat cycling?
For an aging recreational cyclist, with no great need to sprint, is it always the better choice to downshift and remain in the saddle, rather than to get up and stand on the pedals?
(Edited: made clear I'm interested in repetitive strain injuries specifically, rather than injury in general. Apologies to those who answered with respect to general injury risk - these answers are interesting, but not what I was looking for)