Combining HIIT and regular Cardio = Overtraining?

[chrischarles]

I do heavy lifting in the effort to bulk up (natural skinny guy frame with fast metabolism ? but heavily cut now), and am going to try this HIIT routine to get better definition (fat loss) a little faster than what I've been doing:

*****
Amp up the intensity on the treadmill so that performing an ALL OUT sprint for 30 seconds.
Decrease the intensity back to a fast walking pace. Walk for 90 seconds.
Repeat steps 10 times.
*****

My question relates to frequency of HIIT:

I currently do only what would be considered "moderate" cardio, in comparison to HIIT, but I do this after every workout, about 5 to 6 times per week. This is alternating between jogging (7 mph) and inclined speed walking (no sprinting) for 30 minutes.

If I adopt this HIIT workout, 3 times per week, should I abandon all other cardio, or can I do my alternative ?regular? routine mentioned above on the days I do not do HIIT?

Could I end up "over training" and losing muscle mass by doing the "regular" Cardio routine outside of the HIIT 3 times per week?

Thanks for the advice!

 

[Merkaba]

I don't understand. Are you trying Bulk or Cut? Pick one.

 

[Kenny Croxdale]

I don't understand. Are you trying Bulk or Cut? Pick one.

Bingo.

As someone once said, "If you chase two rabbits at the same time, you'll lose both."

Kenny Croxdale

 

[chrischarles]

Sorry - should have been more clear, I'm cut "now" and have reduced body fat to where I'm happy, and now I want to bulk up, but not lose the heavy lifting work I'm doing to a cardio routine that will cause me to "over train".

Thanks.