Tracking Progress: How to Measure and Improve Your Cardiovascular Fitness
https://www.youtube.com/watch?v=_8djNYprRDI&pp=ygVJVHJhY2tpbmcgUHJvZ3Jlc3M6IEhvdyB0byBNZWFzdXJlIGFuZCBJbXByb3ZlIFlvdXIgQ2FyZGlvdmFzY3VsYXIgRml0bmVzcw%3D%3D Cardiovascular fitness is a cornerstone of overall health and