My VO2 Max just keep getting worse according to my Vivosport, not saying it's defective, it's probably just me, but nothing I do seem to improve it, just keep getting worse. I need some advice please.
I'm 5'6'', 150lb, 33 years old. Been running for a month and a half and apparently no improvement. I can only go at a very slow pace, about 12min per mile to keep my HR below 160. What's wrong with me, lol. At this rate I don't see a way to get under 20min on a 5k race. Please help! ciq.forums.garmin.com/.../1263601.png