I always hit a physical wall around the 3rd or 4th round then get my second wind

[chris5]

...will this ever go away?

It's been like this for years.

Ex. i'll warm up, even break a good sweat. Then i spar/train at a high level intensity and by the 3rd/4th round i am having trouble breathing, my legs feel like i'm in quick sand and i hit a barrier where i can't get enough oxygen and i feel fatigued bad. I have to fight through it (literally...like mentally tell my self to keep going) and then by the 5th on I'm a diff person. It's like my body releases adrenaline and endorphins and all of a sudden i feel light on my legs, i can breathe, i have a good rhythm, i'm dripping sweat and i feel good. It's like this with running as well (usually hit the wall 22-25 mins in, then gotta fight it for 5-8 mins then i'm good)

Do you guys experience this? Is something wrong with my body??

[Butt stuff]

I get this as well when going for long distance runs. I'll try to keep more or less the same pace throughout, at one point I might be wheezing and dieing but by the time actually finish the run I'm not out of breath and could hold a conversation directly after.

It makes me wonder how much warming up professional boxers do in the changing rooms before the fight without expending too much energy.

[chris5]

I get this as well when going for long distance runs. I'll try to keep more or less the same pace throughout, at one point I might be wheezing and dieing but by the time actually finish the run I'm not out of breath and could hold a conversation directly after.

It makes me wonder how much warming up professional boxers do in the changing rooms before the fight without expending too much energy.

see that's the thing, i would need a good 20 min semi intense warm up before a fight then. do the pros get this much time?

[~AK49~]

It can be normal. Around the 3-4th round is when that initial adrenaline rush from getting into/being in a fight wears off. This can make you feel drained for a bit, but your conditioning will take over soon after. Either that or you need to get in better shape, and should make some tweaks to your conditioning routine.

Answer could very well be both.

[jas]

Better nutrition = better human machine !

[chris5]

I eat pretty clean but I notice this happens to a fuller extent when I have had more then two days off training.

Maybe i should up the intensity of runs. Ex. i usually have a pace around 8/min a mi for 4-5 mi. maybe do a pace of 7:30/min a mi but a shorter run?

[jas]

maybe your body hasnt fully woken up

[~AK49~]

I eat pretty clean but I notice this happens to a fuller extent when I have had more then two days off training.

Maybe i should up the intensity of runs. Ex. i usually have a pace around 8/min a mi for 4-5 mi. maybe do a pace of 7:30/min a mi but a shorter run?

The right idea but way off on your example.

Two types of conditioning bases you need, aerobic and anaerobic. Those long distance runs, aerobic. This type of conditioning is so you can fight for a while (10 rounds or whatever). Your body is trained is be able to move and work for a longer period of time, trained to not produce lactic acid until later, etc.

The mistake many make is neglecting their anaerobic base. This is your explosive conditioning. Being able to explode for a combo, expending a lot of energy in a short amount of time, and being conditioned to do that. Many ways you can works on your anaerobic base. A general example would be sprint for 30 seconds, rest for ten. Just depends on what you can do starting out. But never rest for more than a minute, optimally keep it in the 30-50 second range. You want to condition your body on being able to recover in a short amount of time, specifically the minute in between rounds.