https://community.usms.org/swimming/f/general/11224/lack-of-efficiency-in-brSo last night when I was doing some 25&#39;s at lower effort I was really focusing on keeping my core tight and not letting my legs drop as well as on my pushoffs really streamlining. What I learned was... I am very inefficient!!! When I do sets at 90-95en-USTelligent Community 12https://community.usms.org/thread/184421?ContentTypeID=1Wed, 27 Feb 2013 02:35:28 GMT3187ac58-ba85-4314-b79a-c45cd885e09a:670e44a8-41b3-49ce-9219-99e1f649ae43knelsonAfter focusing on the above items and consciously thinking about them... i was turning in 24&#39;s at probably 50% effort... and 21&#39;s at 75%... even wilder was the fact I was not huffing and puffing. I don&#39;t find this strange at all. That&#39;s just the way it is. There&#39;s a huge increase in effort required to go from an easy effort to a maximal effort, and a much smaller difference in time. Two seconds in a 25 is huge.<div style="clear:both;"></div>