I have browsed quite a number of the saddle height threads and most seem to point towards having the seat set high enough for power strokes efficiency.
The common claim or fact, is that a low saddle height can cause knee injury if it's set too low ie. your feet being able to touch the ground while being on the saddle.
Two facts are, it's safer and more comfortable to be able to touch the ground a bit without leaning or getting over the bar to be standing firm on the ground.
Two questions I have,
a. If someone is riding just to be fit and to loose some weight, is the need to fitted on the bike as a competitive cyclist important?
Posture and pain free riding is important but how important is aerodynamics and sitting high on the saddle is in terms of biking for health reasons?
A good riding technique is always a good thing but do we need to be riding with a racing compliant set up to keep fit and loses weight?
If having the saddle set low so we can touch the ground causes knee pain and knee injury, then how is it we don't see Gramps and Gramma balling in pain riding around?
Is riding with a saddle height set so someone can touch the ground really that bad if they are not riding competitively?