I've wondered about this quite a bit recently. The workout computer on the stationary bike at the gym reports that I burn ~320 calories in half-hour session. I wonder how accurate this is. (Multiple bikes produce similar results.) That would translate to well over 600 calories per hour, which is a lot if the chart on the wall that compares the calorie consumption rate of various activities can be believed. It "feel like" I work harder than that in most pool workouts, but a calorie consumption rate >600/hour doesn't sound believable. Of course I do take set breaks during a 80-90 minute swim workout so I'm not running at that rate 100% of the time, but in a 90 minute workout at least some days I would be running hot for 75-80 minutes. Of course it has been months since I have been able to do this on account of life getting in the way... grrrrrr.
Since I've had my Apple Watch, I keep an eye on the estimated calories burned. I'm typically around 100 calories per 500-600 yards.
I took a look at my average heart rate from my last week of workouts. It is typically 130-140. Even allowing for an error rate, that's still well over 110. Plus that's the average, so some is less/some is more.
I mostly don't worry about heart rate when I swim after using the treadmill and/or lifting. My HR is already up high, so even an easy swim will record a HR of 150+.
As for drinking water that you swim in...I'd be cautious if swimming in a lake. There was one o/w swim at a lake in Arizona where many people got sick and the race organizers contacted everyone and advised them to see a doctor. Giardia seems to be an increasing problem with lake water.
I've wondered about this quite a bit recently. The workout computer on the stationary bike at the gym reports that I burn ~320 calories in half-hour session. I wonder how accurate this is. (Multiple bikes produce similar results.) That would translate to well over 600 calories per hour, which is a lot if the chart on the wall that compares the calorie consumption rate of various activities can be believed. It "feel like" I work harder than that in most pool workouts, but a calorie consumption rate >600/hour doesn't sound believable. Of course I do take set breaks during a 80-90 minute swim workout so I'm not running at that rate 100% of the time, but in a 90 minute workout at least some days I would be running hot for 75-80 minutes. Of course it has been months since I have been able to do this on account of life getting in the way... grrrrrr.
Since I've had my Apple Watch, I keep an eye on the estimated calories burned. I'm typically around 100 calories per 500-600 yards.
I took a look at my average heart rate from my last week of workouts. It is typically 130-140. Even allowing for an error rate, that's still well over 110. Plus that's the average, so some is less/some is more.
I mostly don't worry about heart rate when I swim after using the treadmill and/or lifting. My HR is already up high, so even an easy swim will record a HR of 150+.
As for drinking water that you swim in...I'd be cautious if swimming in a lake. There was one o/w swim at a lake in Arizona where many people got sick and the race organizers contacted everyone and advised them to see a doctor. Giardia seems to be an increasing problem with lake water.
