hotman637 wrote:
Efficency is defined as"effective use of time and effort".So you are right time is important in defining efficency.But I am assuming that doing 37 strokes for 50 meters takes substantually more effort then 29 strokes for 50 meters so Magnussen is less efficent from the standpoint of EFFORT.IF he can do 37 strokes in 50m using the SAME EFFORT as Yang uses to do 29 strokes,in my opinion he has broken at least one law of physics,lol.(Of course I mean both going full speed).By by your logic, someone going at 40RPM on the bike is more efficient than someone going 80RPM, all other things being equal. Not necessarily true.
Efficiency in the swimming case should be defined as the energy expended to maintain a given speed. But energy expended is not the same as stroke count.