You might find it awkward but despite of being weird and unusual sitting option saddle stool has many benefits. This position of sitting is exactly like a rider on a horse back. Knees apart and back straight, you think this is not a proper way of sitting. Actually the health benefits contributed to saddle seat has made it a top choice of all those office workers who sit on their office desks for long hours.
What makes saddle stool so popular? In brief, the muscles of your legs, back and arm are at a more comfortable position to work. While you sit, your knees are apart and this allows the blood in the veins of your thighs to flow more freely. The more blood flow is free, the lesser pain or immobility you feel in your legs when you get up.
Reaching to the objects on your table or around you efficiently is only possible when your body is free to move and nothing in your sitting option averts you from that. Conventional ergonomic chairs do not allow you that freedom of movement. For a moment sit with your knees apart and try to reach to the items at your right and left at the far end of your table. You can see that you have fuller approach to them. This is the reason that sitting in a saddle-like position more practical.