Cardio question

[Kaleb]

I was wondering how much cardio I should do a week if I just want to get in better condition. Me and my buddies boxed the other day and I went for a little over a minute and I felt like I was going to die. I've wanted to do cardio for a while but I don't want to lose any size. I'm 5'8'' 150lbs. I would say bodyfat is 8-10%. Any help would be appreciated...I know **** about cardio.

[Spoon]

just do cardio 3 times a week for 45 mins not more than 70-75% of your mhr.

[brian11]

If you go above 75% like spoon said, you will begin to burn muscle

-B-

[userabuser]

What do you guys use to monitor your heart rate? I can't believe I've been doing it wrong for a year. I figure more is better and hit it intense as possible. Straight up hill with a vengence. Needless to say, I've been working against myself. No gains is what got me here.

[Blown_SC]

What do you guys use to monitor your heart rate? I can't believe I've been doing it wrong for a year. I figure more is better and hit it intense as possible. Straight up hill with a vengence. Needless to say, I've been working against myself. No gains is what got me here.

A heart rate monitor

If you use a treadmill or elliptical machine, it will tell you.. as you hold onto the handlebars, it can read it...

[pspcs83]

The HR Monitors on cardio machines can be inaccurate sometmies depending on the quality of the machine. A basic HR Monitor is fairly inexpensive ($40-$50).

A heart rate monitor

If you use a treadmill or elliptical machine, it will tell you.. as you hold onto the handlebars, it can read it...