Actually, lemme rephraze that. When does your lack of endurance surface? What makes you say you lack endurance? Whatever your answer is, do that more. If your lack of endurance shows during bag work, do more bag work. Let your body adapt. Or just wait for the "scientific" answers telling you to lift weights, the choice is yours. Man I'm cynical today. Sorry 'bout that.
Swimming seems to be helping me. But you gotta get in a good share of bag and mitwork for boxing endurance.
i get tired usualy like middle of 3rd rd of sparring. like 1.30 or 1.45 min mark of the 3rd round i satrt hufing and puffing and my shoudlers burn like crazy.
In training for his rematch with Max Schmeling, Joe Louis says in his autobiography that he went 30 rounds flat out on a heavybag. How many rounds can you do? :huh
Ok, then all you have to do is put a zero on the end of that number. The best time to start is today.
how are you pacing yourself when you spar? do you go balls to the wall from bell to bell? if you load up every punch you're gonna get tired a hell of a lot faster.
try to pace yourself a little better. it makes it harder to read you, saves some energy, and when you do miss you'll recover faster if you're not trying to take the guys head off.
As someone said just relax and try to breathe properly whilst your in there, also jumping the bar is very good for endurance or two footed jumps over mini hurdles then sprint back and repeat.
nothing personal but your an amateur at best, not a pro, and i really really doubt that you have the power to be fighting so aggressively from start to finish. You'll just end up getting laid out every time. You are NOT mike tyson at your weight. You ask these kind of questions on this forum all the time, so here it is: The word endurance means that you want to make it long periods of time (IE: swimming, cycling, running, rowing, etc). You also need stamina on top of that (which comes from boxing specific exercises like sparring and various bag-work)... but then you can't neglect other things like strength (weight-lifting, rough sports like football, wrestling, mma type thing)... power (which again comes from weights, plyometrics, and boxing specific exercises, and technique if want punching power on top of raw power)... speed (which comes from exercises like sprinting and jump-rope intervals)... agility (which again comes from exercises like jump-roping or playing a fast-paced sport like basketball)... bodyweight motion (which is best done with various bodyweight exercises, stretching, overall flexibility, balance)... durability (which comes from sparring)... coordination (which comes from boxing specific exercises like double-end bag and jump-rope)... ring intelligence (which comes from years of practice)... and the list goes on. Also, the side to sides over a bar is a great exercise also that Ricky Hatton used to use, as is rope-climbing (towel pullups as sub). In other words, boxing first, everything else second. I tried for years to come up with a perfect routine and found that it doesn't exist. You can try to focus on endurance only, but then it'll be something else, and it'll never end. Do your sports specific training first (whatever it is: baseball, basketball, boxing) and change your other workouts after it frequently. The solution that worked for me is I do my boxing training monday-friday and joined the crossfit cult for a supplement (after the training). Their random WODS target everything I listed above and everything I need. One day I might be running 6 miles (10K), the next day doing barbell squats. Everyone is different, this is what has worked for me and has felt the best for me. END RANT.