hiit treadmill program
Can i use a rowing machine for High Intensity Interval Training?

I play rugby so strength would be important. I was wondering whether using a rowing machine i will get the same result as i would using the treadmill or bike?
Also which of these programs is better:
1. 5minute warmup, 4minute medium pace, 1minute [...]

hiit treadmill exercises
question for trainers or people who know a lot about exercise?

Hi.
I go to the gym 6 days a week and do cardio every day (treadmill). Sometimes I do HIIT training, sometimes I just change my routine (inclination, speed, etc) but always they put a maximum time limit on me of 20 minutes (25 [...]