Energy Expended During Exercising

My message had an error--correct message posted immediately after. --JMM

So, what Rixter has said is that your 9 trips to the floor and back have consumed about 1.3-kCal, compared to the 270-kCal expended on the treadmill. Good call, Rixter.

--JMM

The whole idea of exercise is to elevate the heart rate....one of the best ways to elevate the heart rate is deep knee bends, and just moving about cleaning things and doing household and yard maintenance...this should be done throughout the day with rest periods occasionally....The treadmill is good for watching tv or streaming video...

The 'in' thing now seems to be High Intensity Interval Training. This wisdom of that depends on a persons health and goals. The following link shows that evidence is a bit scant.

Certainly any exercise program should be personalized to the individual, most young people shouldn't need any additional exercise, and if they do, the're in bad shape to begin with...Now I do recommend weight training from an early age, but that should taper off past 30 or so, and just conditioning exercises are needed as we age....Yoga, stretching, low weight repetition, walking, running, skipping, punching bag, water skiing is excellent, and other low impact activities that work the muscles and elevate the heart rate....

That sounds sensible to me. Hi Intensity sounds like a fad and a recipe for heart attack or embolism. Swimming is a pretty good all rounder, but doing lanes is a tad boring. Not sure about running - I've never seen a happy looking jogger. Keeping a routine is probably good, but I lack the self discipline for that.

Yeah I get the part about having a routine, almost required to stay in shape....It seems rather tricky to keep a routine going the older you get, but it's probably worth some effort....I keep a treadmill next to my desk, so it requires the least effort....

The KrisDel health plan is available in bottle... comes in red or white
Del

Any exercise is far better than none.

I could never walk on a treadmill: BORING! But, if that's your choice, keep doing it.

I ride a bicycle 3 miles every day because my city has excellent bike paths and I live in a quiet neighborhood anyway. That keeps me at my perfect weight. During the course of the day, I'll walk 3,000 steps also.

Keep active, eat sensibly and you'll live a long time.

If you want to track your exercise, get a cheap fitness tracker. I have on that counts steps, measures my sleep time and how I sleep, measures my BP, blood Oxygen level, pulse rate and calories burned. It cost less than $30.00.

Enough about me, just keep being active!

I have to agree about martial arts. I trained five days a week for 4 years when I was in my 20's, and it has stayed with me all my life, and fed into a lot of practical skills that I needed down the road. I did a 3 month Tai Chi course at one time when I had some lower back problems - those movements stayed with me as well and although I no longer recall the full form we learned, when I go to stretch spontaneously it is those movements that take over.

I don't know too much about the calorie burning issues in the OP, but I am paying attention to the issues of exercise in aging - especially the risk of losing muscle if you don't work to maintain it. Winter is not my friend since I stopped cutting firewood, and a couple of times I've come out of the dark months with unexpected injuries. Last fall I read an article where they had found a small amount of weight training amounting to 30 minutes a week had better cardioprotective outcomes than aerobic workouts. There were some weights that someone had left here, so I checked out the routines on YouTube and tried it out. I thought that the exercises that opened up the lungs ie involving lifting above the head also felt fantastic and were well worth doing even if I only had a few minutes on a work break. It didn't stop me from getting knee problems again though - and that is a problem in a house full of stairs.

So I've been telling myself as the years tick on, you can still do anything a younger person can, as long as you take it slow. And then I picked up another article, which said that, for an aging person, strength is not as important as power. The basic premise is that the speed of your movement's attack is more important than your absolute strength (pounds you can lift). With the knee pain dragging on I had been slowly laboriously making my way up stairs paying attention to weight distribution etc to not much avail. Guess what? By doubling or tripling my speed on the stairs I actually am having no pain at all after the first step. The knee issue has gone away since I learned that valuable insight!

For self defense,I am a student of Defendu. It is not very well known by many,and you will never see it practiced in the UFC.Most of the effective moves are not allowed. It can be too brutal and lethal.Most people do not have the stomach for some of the most effective moves. Fights do not last very long.A typical real fight only lasts for less than a minute. It is decided by the first few moves. Technique is everything.

The useful work of a generally fit, though not performance-tuned, adult cycling up a hill is in the region of 100-135W. Greater output can be had for brief periods by mortgaging stamina.

Please set me right on this; When modelling heat sources and heat flow within houses, humans are/were replaced by 100W lightbulbs that are moved about. That was before good computer simulations. Can I conclude that slobbing on the sofa is nearly as good as going for a bike ride ?

That particular (in)activity doesn't produce any physical work, therefore the heat output figure needs to be added to the general useful work output figure above to compare the two. It is for that reason that performance-tuned athletes will consume more food than someone <...slobbing on the sofa...>, as, by difference, their greater output needs to be sustained by a greater input.

"Getting something for nothing" in energy terms is not a characteristic of this particular universe.

Different people have suggested I connect a generator to my rowing machine to help lower my electricity bills. I tell them to watch the attached video.

For those of you who are easily misled, the diet and exercise industry is extremely good at manipulating peoples behaviors with little to no actual evidence of efficacy.

I watched early Jane Fonda exercise videos and it didn't change my behaviour one bit.

Please feel free to tell anyone who might be surprised by the veracity of that claim....

PAPADOC,

It is always interesting to put numbers to everyday activities.

Convert your exercise 1283 KCal(kilocalories per Rixter, #1) to BTU = 5088 BTU

A gallon of gasoline has 144,000 BTU

So you did the work equivalent of (5088BTU/144,000 BTU/Gal) = .035 Gal = 4.5 oz of gasoline

If you find gym exercise boring (per lyn #5) try this:

Push your car for one city block. At 12 blocks per mile, you pushed it 1/12 mile.

Assume the car gets 10 miles/gallon at slow speed. You did the equivalent work of

(1/12 mile / 10 mile/gallon) = .008 gal = 1 oz of gasoline

These are some numbers that put energy use into perspective, which will be important as energy policy is decided.

It seems that getting on the floor and getting back up again doesn’t use much energy. One must exercise for good health. Good health is essential for quality of life. However, exercise machine companies really do a disservice by claiming all that weight loss by using their machine. They play down or omit that one isn’t going to lose weight by exercise alone. One must alter their diet, too. If the net sum of the calories consumed and used is on the unused side, then they are not going to lose weight. If you are overweight, you have been eating too much. To lose weight you’ve got to eat less. It takes 3500 less calories to lose a pound. Do you realize how much exercise that is? At 300 calories a day, that’s seven days. And you’ve got to be consuming just enough calories to maintain your desired weight. Good health requires both exercise and diet.

One day,as I was munching on ice,I thought I had the answer to losing weight:Eat ice.Latent heat would consume a lot of calories just to melt it in your mouth. I was excited until I realized the difference between dietary calories and physics calories. People in extreme northern climates consume 5000 calories a day,just to keep warm.So maybe I could move to Alaska and eat all I wanted..problem is I fear polar bears will put me on their diet. Now a walk in freezer might be the answer...hmmm!

Ah,,, the freezer diet.....

Didn't work....now you're just a fat Merman...

My doctor said i needed to get in shape.I said round is a shape. He asked what I did for exercise,and I said I watched football,golf,curling. He said I needed something more strenuous.So I started watching tennis. Still couldn't lose weight.He said I should try yoga. So I tried them all:Briars,Yoplai,Greek..no luck. I finally figured it out:I have been looking at the Height/Weight charts all wrong. I now look at how much I weigh,and see how tall I should be. If I grow 1 foot,I will be the right weight. I would thing as much bullshite as I have waded through in my life I would be 8ft tall.