First of all, i'm 20 years old, 5'10", and about 210 pounds, putting me about 60 pounds overweight ( according to dad ). Anyway he always rags on me saying that going to the gym, treadmill 4hrs 2mph is better than what i say which is, push harder for shorter period of time. I get bored quick and well i cant see myself wasting my time at the gym for more than an hour. I usually go daily for 30 minutes and bike what i consider hard ( 160-170 bpm for 20 of those 30 minutes ). Anyway back to the questionLong and Soft, or Short and Hard? Thanks
Losing fat is all about losing calories......and cardio is just one way to go about losing calories..
And the more ' effort ' - duration, frequency, intensity - you put into cardio, the more fat you will lose over time.
So, all other things being equal, 60 minutes of steady state cardio burns more calories than 30 minutes of steady state cardio, doing cardio 6X a week will burn more calories than doing cardio 3X a week and doing 30 minutes of steady state cardio at a higher intensity ( i.e high mph pace ) will burn more calories than doing 30 minutes of steady state cardio at a relatively lower intensity ( i.e lower mph pace )
But generally speaking, the harder - i.e the more ' intensely ' you exercise - the more calories you burn / lose. And, the more calories you lose via exercise, the more fat you will lose. So, if you only wanted to do cardio for no more than 30 minutes ( or even 60 minutes), go as hard as you can IMO.
As for "
burn more than you eat ", that's about it actually. The key to fat loss is to focus on the total calories you use throughout the day. Over time, you lose body fat by simply using more calories than you consume - in other words, you have to create a '
calorie deficit '.
And, to create that ' calorie deficit ' you can simply try to reduce your caloric intake, increase the calories you burn by being more active in general, increase the calories you burn by engaging in some sort of cardio, increase the calories you burn by engaging in some sort of resistance training and or some combination of all 4.