Interval Cardio

I noticed today that it takes just a little more effort to work my way up to a certain heart rate and again, I am guessing that now that "low carb" days recently got lower is why these dreaded intervals are becoming more difficult to complete. Not complaining. Just saying.

At any case, as always, I felt great afterwards. Best feeling ever.

Previous...

Duration: 30:11
Calories: 366
Average Heart Rate: 150 bpm (79% MHR)
Maximum Heart Rate: 174 bpm (92% MHR)
Fat Percentage of Calories: 12%

Tonight...

Duration: 30:15
Calories: 380
Average Heart Rate: 149 bpm (78% MHR)
Maximum Heart Rate: 172 bpm (91% MHR)
Fat Percentage of Calories: 13%