I was in a heated pool this afternoon trying to incorporate some treading water into my weekly cardio routine for the first time. Water was just warm enough to be comfortable upon immersion. I treaded water for about 20 min. and was wondering how much fluid (sweat) I lost during the workout. I can usually tell from a jog or a bike ride, but I really could not tell how much fluid to replace as I went for a drink. Not a huge deal, as several hours later (now) I am beginning to “feel” like I did indeed lose close to the equivalent of a jog or bike ride indoors but I was just curious if there was some knowledge about this out there.
Not sure if you could do a study on this or if people just know from experience or theory… wow, the low-impact nature of the water sure does feel GREAT compared to terrestrial activities!