Comparing Weight Loss From Exercise In Cold And Hot Weather

Day 184

Starting Weight: 78.4 kg
Weight Before Running: 79.5 kg
Weight After Running: 78.3 kg
End Weight: 77.9 kg
Result: lost .5 kg (more than a pound today)

Today, I ran for only 75 minutes, which was my original plan well before the run even started. Yesterday was a rough but very successful day, with my heart rate at 156 at the end of the session. Today was also a bit slower at the end. However, I did speed up the last few minutes and was at 148. Still, that’s much lower than yesterday.

It could be because the weather is starting to warm up here finally. But I also had another good weight loss during the workout. It was 1.2 kg for the 75 minutes, which is what I have gotten lately on average when running 90 minutes. And since this was not a particularly hard run, I was a little surprised. But it appears that the change in weather may be causing me to lose more weight during these runs.

Let me compare my results in cold and warmer weather so you can get an idea of how this might affect you. Bear in mind that these results are from Denmark, where it never actually gets hot but freezes for about 3 months. So your own high and low temperatures may cause a different result for you. But the idea here is to give you a sample of what may happen.

Most of my Pentamize tracking so far has been in the spring and summer. And during that time, I lost about 1.5 kg on average on 90-minute runs. Now, after having gone through pretty much a whole winter of Pentamize tracking, I can finally do a comparison. Over the cold months, I have averaged approximately 1.2 kg of weight loss during my 90-minute jogging sessions. In my case, that is about .3 kg less on average in the cold months as compared to the warmer months. That is right around 20 percent less weight loss during the cold months during these sessions.

Don’t confuse weight lost during an exercise session with weight lost over a 24-hour period. These are obviously related but also different. They are not likely to be exactly directly proportional to each other. And they may even differ from person to person, as some people react differently to changes in workout intensity, duration, and other factors.

So while it’s good to note that you may lose a little less when running or working out in the cold, that doesn’t necessarily mean you will lose less or more weight in each 24-hour period. This depends on so many factors that you will need to test this for yourself. The only point to be made here is that if you do the exact same workout in cold and hot weather, don’t be surprised or disappointed if the amount lost during the session is a little less in the cold-weather sessions. This is natural, and you can still lose weight in cold weather. But you’ll need to track your diet and exercise using my Pentamize system or other methods in order to make sure your overall daily routine is sufficient to achieve the desired results.

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