Why Couldn't I Do 50-minutes?

Today, I started a high intensity cardio workout that was 50-minutes long. Lots of jumps, jacks, etc. I've done it before to completion, although it was challenging. Today, I got to 22-minutes, and knew I was "done in," so went to the cool down. I was exhausted. Could it have anything to do with the heavy weight lifting day I did yesterday? It was only upper body, but it was intense and an hour long. Would that really have an effect on my energy level today?

What do you think?

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popmol · 26-30, M

don't start too hard. and mmhh is jumping jacks considers cardio i think its considered muscle training?

Carissimi · F

I exercise regularly, so I'm not just starting that's why I'm puzzled. @popmol

popmol · 26-30, M

@Carissimi maybe you did too much a day before? or didn't have enough rest pauzes and it all added up.?

Carissimi · F

@popmol I slept for 8-hours last night. That was the first time in years. The night before, I only got 3 hours before I was woken up, and stayed awake until 7 am. I often have disrupted sleep. Maybe it's that too.

popmol · 26-30, M

@Carissimi that will probably affect you really