How calorie burn is actually calculated in general is by your heart rate, meaning you don’t necessarily have to walk or run to burn calories. The heart is like the engine and fat or carbs is its fuel. The iPhone or watch may lack an accurate gps speed or distance calculation because of the devices requiring a phone plan to access the satellites or towers. If they added something for checking distance or speed by satellite or tower then they may as well create a new phone/internet network.
Maybe they don’t have an accurate speedometer in the devices, how a speedometer works is there’s something heavy inside that slides back when accelerating and it moves a dial or something moving a bar or needle to the current speed.
In devices that lack a fixed position like in a car dashboard it could be hard to accurately calculate speed. Also walking on a treadmill is different than walking in the real world. The real world isn’t perfectly flare and doesn’t accelerate you, you have to fight gravity yourself. Sometimes I just measured a distance on maps and then time myself walking it to calculate my average speed, and I wouldn’t cut any corners.
So the Apple Watch has a heart beat detector and calculates speed, distance, and calculates calorie burn out of 2 or 3 of them. So the iPhone wouldn’t be as accurate since it lacked the heart beat sensor.
What if it does or did calculate the distance based on your heart beat, speed, or calorie burn.
Another thing is when checking heart beat you’d probably check it on the side of the lower neck just before it meets the collar bone or the underside of the wrist.
So you’d think it over estimated calorie burn and distance traveled. So maybe Apple decided to underestimate it so you for sure got a whole work out in. Also your brain uses energy, like if you did a whole bunch of computer work without eating you should still burn body fat, but maybe not.
So they may need to track you by satellite to check your speed with a laser or motion detection camera. Then again maybe your arms move faster than your legs and you may be holding the phone. As Apple users you can really say that you walk real or long miles. Lol
Health is weird, with being overweight you may not need to do any exercise to try and burn it. There’s different food ingredients like or similar to cholesterol and bacteria used like yeast enzyme. If you look at online diagrams of cholesterol, you’ll see that it’s only shown in the blood stream and in places like the gall bladder and liver. Probably because eating cheese in this large of a quantity or produced from yeast enzyme just came to exist in the last 20 years. Based on old diagrams and consumption amounts you’d assume the arteries would have to be completely clogged.
The bacteria was cultured to be used and the added fats may be synthetic or altered. For the fat to burn as energy like a carbohydrate there has to be a certain number of oxygen and hydrogen or nitrogen bonds, and a chemical reaction takes place.
Its fine to consume calories before walking/running and is completely necessary, if you have no actual body fat once your ATP is depleted your muscles and organs will start breaking down or downsizing because the body can’t support it.
Athletes or pro Olympic athletes and bodybuilders eat a lot of carbs or they can’t perform as well or even move. Everyone always drank a lot of soda unless they were athletes training, then it’s Gatorade or it’s bad for them, no fast food, no trans fat.
I’d suggest galactose and corn starch as an energy supplement. Another option is creatine but it can cause compartment syndrome in the legs.
I tricked myself for years by thinking I didn’t or couldn’t have diabetes and dropped my blood sugar from fasting and drinking water before doctor appointments. Insulin didn’t cure my issues, it just made me want more carbs, or kept me sitting down. I didn’t know that I was already more active than most people, anything more and I’d be considered athletic.
Diabetes wasn’t really that big of a deal and I assumed that every American probably had it.
What Im trying to say is that we didn’t take the calorie burn devices that seriously since they existed and the Apple Watch or health app may be completely accurate or underestimated for that reason, so you do more instead of less.
If you know the distance you travel and how long it takes then you can calculate your speed, and then you calculate how many calories you burn, but with devices like the Apple Watch or phones you may want to keep track of your unintentional exercise you do each day. The thing is if you don’t get your heart rate up high enough then you may not burn any calories or only burn the regular amount of being stagnant. People really liked keeping track of their daily steps but the Apple health app may be designed for intense exercise.