I have been training MT and BJJ for about 2 years off and on when I first started my conditioning was absolutley horrible after 2-3 months of training I noticed huge improvements but since then the improvements have been much slower. The gym that I got to doesn't have seperate classes for beginners so I didn't feel like I was getting pushed as hard as I should have been so I decided to start training on my own about a month and a half ago. Anyways to make a long story short about 3 weeks ago I started doing sprints I run full out 100M in 40sec time frames so if I get there in 17 seconds I get 23 seconds rest. I do that 8 times then rest a minute and I do three rounds of that. I have to say my conditioning has gone through the roof compared to what it was a couple months ago. I really noticed it last night when I got together with one of my old training partners from the gym and did some sparring. He has been training for quite awhile and sports a 3-1 pro record so needless to say he is quite a bit better then I am. We sparred hard for 3 rounds first one 5min. second one 7min. and the third 5mins. and I am extremely proud to say I did not gas at all although I definately got rocked a few times. So thats my little story hope it wasn't too boring I just wanted to share my experience and see if it could help keep anyone else motivated. Now all I can think about is getting out there and training again tonight.