#vo2 max

My first stress test ecg video is out now on OnlyFans! https://onlyfans.com/nathansheartbeat

Nathan had his first ever stress test today. He was kinda nervous about it at first but he loved how the suction electrodes felt on his skin...the mask for VO2 max recording made breathing harder but Nathan is a fit and sporty boy so he took on the challenge and gave it all he got...

Working on experimenting with different low impact ways to increase VO2 by increasing HR up into zone 5. Today was on treadmill, working up to a 5 incline and speed of 3.2 mph over about 10 minutes, then walking that for about 5 minutes. Treadmill is sooo boring, 15 minutes is about all I can handle. I'm a little more comfortable on the Treadmill today than last week. I did get HR up, but probably need it a bit higher and for longer.