Compared to running or biking? A 5k swim is roughly equivalent to a half-marathon run. I can't imagine anyone would run 13 miles without even a sip of water.
ok, I've conducted some google research and there has been some studies conducted on this. The results seem to vary quite a bit but I surmise sweat loss during swimming is about 500ml per hour, vs running of about 1.5 L per hour with a lot of variance with weight, intensity, heat, etc..
The amount of sweat loss is individualistic. You can weigh yourself before and after exercise and determine your own sweat rates. Wonder if anyone actually does this?
...I typically drink about 30 oz of water over the course of a one-hour swim workout. With this habit I am afraid to swim over an hour without water, but perhaps this is more of pyschological need than a physical need?
I don't have a whole lot of experience with long distance open water, but I am trying to get more. However, I also drink about 32 oz of water during a 1 hr swim workout and was concerned about not drinking during open water swimming - except for the occasional wave during a breath :whiteflag:.
During the open water practices and 3 swims I did last year (most in a very warm small lake in South Texas) some up to 2 hours, I was always able to make it without the water during the swim I was sure to have water available after my swim. (when I run any distance, I sweat and drink water heavily, so while swimming, the water cooling me constantly must be in play). Good luck. :fish2:
ok, I've conducted some google research and there has been some studies conducted on this. The results seem to vary quite a bit but I surmise sweat loss during swimming is about 500ml per hour, vs running of about 1.5 L per hour with a lot of variance with weight, intensity, heat, etc..
The amount of sweat loss is individualistic. You can weigh yourself before and after exercise and determine your own sweat rates. Wonder if anyone actually does this?
...I typically drink about 30 oz of water over the course of a one-hour swim workout. With this habit I am afraid to swim over an hour without water, but perhaps this is more of pyschological need than a physical need?
I don't have a whole lot of experience with long distance open water, but I am trying to get more. However, I also drink about 32 oz of water during a 1 hr swim workout and was concerned about not drinking during open water swimming - except for the occasional wave during a breath :whiteflag:.
During the open water practices and 3 swims I did last year (most in a very warm small lake in South Texas) some up to 2 hours, I was always able to make it without the water during the swim I was sure to have water available after my swim. (when I run any distance, I sweat and drink water heavily, so while swimming, the water cooling me constantly must be in play). Good luck. :fish2:
