I used Ultimate Test Lab last year. They have a mobile lab that travels around the burbs, mostly south. http://ultimatetestlab.com/
Chad was really informative - body fat dunk tank, VO2 ranges and VO2 max
Hmm. there website is a bit outdated. I think I actually used to race mountain bikes with Chad. I sent them an email we'll see what they come back with.
Have you been thinking about getting a lab test done to determine your Lactate Threshold number for generating precise heart-rate zones? Follow AJ as he subjects himself to this grueling test.
Is there a point of diminishing returns? At some point, age catches up with us all. In general, as we age, VO2 max decreases, body fat increases, and muscular strength drops off.
Discussions on keeping heart-rate down on hills, the fat burning zone, lactate threshold (LT) testing, max trainer hours, high HR on the run/walk, the 10% rule and different running workouts.