Cute, but I disagree completely.
+1
I recently lost some weight and found the same type of thing your nutritionist pointed out (at least I think so). I set my diet up so that I'd lose about a pound a week. Well, in the fall, we started to build up the yardage in the pool. Although I was using a tool to calculate calories burned from swimming, I was initially not using it to increase what I was eating. As a result, I ended up a couple of weeks in a row with significant caloric deficits.
I noticed that I felt lethargic, particularly towards the end of practices. I also noticed that my weight was not going down at all. So I made a conscious effort to eat more (i.e., to come closer to the pound a week goal). I got more energy and actually started to see more weight loss. Of course, everyone's different, but I think that if you eat too little, you slow your metabolism down and do not lose the weight.
And to get it back to the OP topic, one thing I've found is that there is a huge discrepancy among calculators about how many calories you burn swimming. I've seen some that will distinguish between freestyle moderate versus vigorous versus 50 yards per minute, versus 75 yards per minute--each of which will give you a different calorie burned number. And each of which strikes me as somewhat subjective. After all, it would seem to me that someone who can easily hold 75 yards per minute is burning fewer calories than someone who is sprinting all out for that 75 yards in a minute.
Cute, but I disagree completely.
+1
I recently lost some weight and found the same type of thing your nutritionist pointed out (at least I think so). I set my diet up so that I'd lose about a pound a week. Well, in the fall, we started to build up the yardage in the pool. Although I was using a tool to calculate calories burned from swimming, I was initially not using it to increase what I was eating. As a result, I ended up a couple of weeks in a row with significant caloric deficits.
I noticed that I felt lethargic, particularly towards the end of practices. I also noticed that my weight was not going down at all. So I made a conscious effort to eat more (i.e., to come closer to the pound a week goal). I got more energy and actually started to see more weight loss. Of course, everyone's different, but I think that if you eat too little, you slow your metabolism down and do not lose the weight.
And to get it back to the OP topic, one thing I've found is that there is a huge discrepancy among calculators about how many calories you burn swimming. I've seen some that will distinguish between freestyle moderate versus vigorous versus 50 yards per minute, versus 75 yards per minute--each of which will give you a different calorie burned number. And each of which strikes me as somewhat subjective. After all, it would seem to me that someone who can easily hold 75 yards per minute is burning fewer calories than someone who is sprinting all out for that 75 yards in a minute.
