As you can guess, I'm a bit frustrated. I've been spinning at least 4 days a week and mountain biking on weekends. I feel like I'm getting more fit but it's just taking a lot longer than I had expected.

On Saturday, I went MTN biking with my husband on a trail that was really too much for me. The section I was on was over 4 miles uphill with some very steep sections. It was hot and the trail was a bit sandy. I was in the lowest gear possible trying to go as slow as possible but still my heart rate would get so high that I'd have to stop to rest. Then, I'd try again and not 30 seconds later, my heart rate would be up to 170! I realize that I shouldn't have been on that trail and was beyond frustrated having to push my bike uphill so much but I just want my cardio fitness to improve!

I'm 37 and a healthy weight. All I can do is challenge myself more when I'm spinning and on my weekend MTN bike rides but it's just sto frustrating sometimes.

Thanks for letting me vent.