Excersize question

Im 5'3, 200 lbs. Is it better to work out harder for a shorter duration or go slower for a longer duration? right now Im only using my treadmill 

Harder for a longer duration is optimal...

I have found that for me, slower and longer is better.  I am not a young chick anymore (48) and I have arthritis.  When I over do it, I end up not exerecising for several days in a row beucase I can't move. 

I am averaging about 5 times per week and alternating power walking (2.5 miles in 37 minutes) with some weight training (30minutes at a time).  

I had hoped that my arthritis would get better with weight loss..it is actually worse, probably beucase I am more active.  I guess it is what it is and I work withint my limitations.

You will need to figure out what works best for you. 

Hey there

So both are right. It's about mixing up your workout.

The long slow workouts will build up your endurance but the short hard will make you stronger. I know they sound the same but they're not - they're both important however.

The only thing I'd watch out for - that your long and slow workouts aren't too slow. You should still be huffing and puffing a little. Basically use talking to judge yourself. If you can complete a full sentence then you're not working hard enough. 

Mixing up your workouts will also keep your body from getting too efficient at the workout. You might also want to try adding other types of workouts. Get on a bike, take a class, free weights. Whatever strikes your fancy.

All that being said. Any workout is a good start. I was 5"4' and 250lbs when I started out on my exercise journey (before surgery) and just added a little more each week. I went from brisk walking to running. Now I could run a 1/2 marathon tomorrow if I wanted to.

Good luck.