Questions tagged [exercise]

Activity requiring physical effort, carried out esp. to sustain or improve health and fitness.

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3 views

Is doing some kegel better than doing none?

Most websites suggest 2 sets of 10 kegel exercises per day, morning and evening. What if I do only one set of 10 per day? Is that better than not doing any?
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39 views

How do I measure my resting heart rate?

I measured my sitting down, relaxed, not moving heart rate, which is around 65-80BPM. If I do the same measurement laying down, it's anywhere from 50-65BPM. While asleep, it dips into the 40s. The ...
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Science behind “sitting is the new smoking”; regular long bouts of sitting associated with cancer and heart disease even though one gets exercise?

I just listened to the NPR news item and podcast Just Move: Scientist Author Debunks Myths About Exercise And Sleep and Daniel Lieberman (professor, Human Evolutionary Biology at Harvard University) ...
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In impaired tissue oxigen update, are other acid-base problems than lactic acidosis possible?

I'd like to know if impaired oxygen uptake by muscles and a return of this oxygen via the venous system has any influence on blood pH. I'm thinking about patients with for example mitochondrial ...
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Blood pH when exercising. Rising pH? Maybe somehow related to lactic acid and hyperventilation [closed]

Exercise generally acidises the blood. I'm looking for information on the timing of onset and how long this lasts after the exercise. Furthermore, I'm looking for info on alkalization of blood caused ...
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52 views

Could an increase in heart strength result in an increase in systolic blood pressure? [closed]

If someone begins intense cardio training and develops their heart muscle, it seems to me that the increase in volume of blood that the heart can pump with every beat might manifest as a higher ...
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55 views

What would it be like to participate in a (coronavirus) challenge trial, in the US?

I am strongly considering volunteering for any COVID human challenge trial that becomes available near me (midwestern United States). I am willing to undergo long-term isolation. However, I am not ...
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64 views

How to Determine How Much Water to Drink [closed]

I am planing to develop a mobile application to monitor the water intake level of a person. I found the following calculator, but I have no idea what is the formula that they have used in the ...
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256 views

COVID-19, disinfecting bike-share bikes (or rental bikes), and safely using them

I don't own a working bike, but I do have a bike-sharing system membership. My city's bike-sharing system has many stations. I can borrow a bike and ride it to any other station. There's currently ...
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166 views

Sport in the time of pandemics - what is the risk

For context, Australia, where I live, currently sits at ~130 confirmed cases, which makes me feel relatively safe for now, but naturally this will get worse with time as other countries' examples ...
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Study of heart rate delta-V during excercise?

Are there any studies into the impact of the rate at which a subject's heart rate is increased or decreased when beginning or ending an exercise session?
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Is hanging from a bar contraindicated in the case of a shoulder dislocation history with labrum damage?

I have just found a book by John Kirsch "Shoulder Pain? The Solution & Prevention" (see also here and here) which promotes hanging form a bar with extended arms ("dead hang") as (partial) ...
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Exercise vs. inflamation

I am a bit confused: I think there is a consensus that inflammation is bad when it is chronic. But where exercising, we do create inflammation as well and, if you exercise daily, that inflammation ...
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What are some conditions that would cause severe exercise intolerance?

I'm making a character and trying to be biologically accurate. Said character has transfusion-dependent anemia (from Gunther disease/congenital erythropoietic porphyria) so I suppose exercising would ...
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44 views

How does high-intensity aerobic exercise affect the brain?

I have been reading articles claiming that serotonin, endorphins and BDNF are produced during exercise, but they never mention the intensity or duration of exercise for this to happen. To not make ...
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How does low-intensity aerobic exercise affect the brain?

I have been reading articles claiming that serotonin, endorphins and BDNF are produced during exercise, but they never mention the intensity or duration of exercise for this to happen. To not make ...
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1answer
34 views

What are the molecular mechanisms of inducing pleasure for physical exercise?

It is known that pleasure of eating is one of the main cause of obesity. And from my everyday experience I can also see that some men really enjoy the exercises in gym, they can not live with out them....
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Muscle disorder causing exercise intolerance without an increase of creatine kinease levels

Has anyone heard of a disorder that causes exercise intolerance and post-exertional myalgia without any further symptoms (like generalised fatigue or joint pain)? Detailed investigation showed that ...
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Would strenuous exercise make one more susceptible to ringworm?

A recent study debunks the generally-held belief that strenuous exercise suppresses the immunity system. Instead, immunity cells are said to migrate to internal organs that need them most after ...
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159 views

Simulate hypoxic training by breath holding/regulation

Is it possible to physically simulate hypoxic training by doing periodic breath holds or breath regulation during aerobic activity? Ideally, it ought to be done in a hypobaric/hypoxic chamber whilst ...
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What is the effect of still feeling a movement after doing this movement during the day called and what causes it?

After a long day of sailing or a boat, or sitting in a car, or heavy sporting, et cetera, one might feel, while lying perfectly still in bed (or resting in another way), as if the body is still ...
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68 views

Are there any studies that demonstrate an anticipatory effect similar to classical conditioning when increasing glucose levels prior to exercise?

I've edited this so it hopefully meets the guidelines of this forum. I'd like to know if there are any studies that demonstrate an anticipatory effect similar to classical conditioning, increasing ...
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Extended amenorrhea due to exercise - how to mitigate long-term damage?

One thing that female athletes with low body fat can encounter is amenorrhea. While not a problem in the short term, extended instances of this can lead to bone loss (osteopenia/osteoporosis). Are ...
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How to assess the risk of “cardiac event” for a healthy runner? [closed]

It appears to be dreadfully not uncommon that seemingly healthy people suddenly die of "cardiac events" when doing physical exercises. Here is just another sad example: a healthy and regularly running ...
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Is the number of push-ups a person can do a good risk estimate for heart attacks?

According to this article below, people who can do more than 40 push-ups have lower risk of heart attack. Is this a valid claim? https://www.sciencealert.com/what-new-science-says-about-men-who-can-...
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“Blood rushing to the head” during handstands: How is it regulated?

Many people who start practicing handstands or headstands report discomfort in their head, ranging from a mild sense of fullness to "my head is going to explode." The standard response in online ...
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Exercise and Stress Hormones

Does exercise have a direct and positive impact on hormones such as glucocorticoids, catecholamines, growth hormone and prolactin? Moreover, if one keeps a regular weekly exercise routine, is it ...
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Is Morton's toe curable without surgery?

Is it possible to cure Morton's toe without any surgery? Does any exercise/footwear useful in treating Morton's toe?
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Does anaerobic exercise impair wound healing?

Anaerobic exercise causes muscle breakdown, forcing the body to engage in protein synthesis. Wound repair consists mostly of protein synthesis. It would seem that these two processes would compete ...
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124 views

What's the difference between a fast heart rate during exercise, and a fast heart rate during an anxiety attack?

I'm curious to know what the difference is between having a fast heart rate during exercise and having a fast heart rate say at rest or during an anxiety attack. It's known that exercise is good for ...
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60 views

Empirically, do people who exercise less/more actually eat less/more, (and if so, to what degree)?

I am looking for the answer to what I think is a very basic question that people must have looked at: empirically, to what degree does food intake actually correlate with exercise, (especially in the ...
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Hernia repair with a mesh

I'm wondering if hernia repair with a mesh prevents the hernia from growing. I'm imagining a sort of plaster being placed over the hernia but the hole still being there and growing. Or is the mesh ...
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When is too much running bad for your health?

In this ted talk, cardiologist James O'Keefe argues that intensive running is bad for your heart. This conclusion is pretty alarming to me, and counter to what I have always thought. Is there a ...
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Why I should avoid to exercise after blood donation?

I'm quite experienced blood donor, even if I feel anxious during the blood extraction I've never felt dizzy nor tired after donation. Today I've been donating and the nurse told me to avoid weight ...
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138 views

What happens when you eat carbs everyday? [closed]

I once heard that to gain weight, one has to eat a lot of carbohydrates. What I mean by a lot is, by eating carbs in the morning, afternoon and evening plus as an additional midnight snack. So, I ...
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Why do skin calluses not heal sometimes and remain tough until they fall off?

Bar exercises such as pull-ups, toes-to-bar etc. usually cause skin calluses on one's hand, just below the place where the fingers are connected to the hand, e.g.:. So the skin in these areas hardens,...
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104 views

How does exercise improve health?

Particularly, it is often stated that exercise is good for battling heart disease and controlling blood pressure. Does anyone have any insight on how/why exercise does this? Thanks.
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235 views

How hot before someone gets heat exhaustion while running?

I myself have gotten heat exhaustion once but that was while sitting still in a sauna. I knew to get out when I was dizzy. I gently collapsed onto the floor, still conscious. I noticed something odd ...
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75 views

What is the connection between health, exercise, and meditation? [closed]

I have heard that health, exercise and meditation have a connection. How do these three factors interact towards having a better or more relaxing life?
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91 views

Does eating three to five whole eggs each day increase the level of blood cholesterol? [duplicate]

I am a great fan of eggs and have consumed many eggs a day since I was young. I had not even the slightest worry about my blood cholesterol level until an old man told me yesterday about the ...
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203 views

What will happen if you keep running? What will eventually cause you to stop?

A more specific form of my question would be, "Barring mental barriers, what will lead to collapse after extended cardiovascular exercise?" I was considering asking this in the worldbuilding SE, but ...
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Scoliossis exercises at Gym [closed]

I have scoliossis.I went to 2 doctors and they send me to get some kinetotherapy . I asked them what can I do with my problem.I asked them if I can go to the gym and they said that I can only go to ...
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52 views

Is there any way to increase self-burn calories rate?

Some would recommend doing more exercise, but somehow after couple weeks of exercise(burn at least 150 calories everyday), the rate still stay the exactly the same. Is the rate working like a fixed ...
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115 views

How long should one wait to eat after exercise

I read some articles which claim that after each workout, we should have at least one hour's rest before meal; others suggest half an hour. Otherwise, it will do damage to one's stomach. These were in ...
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Why do exercises for lower back pain concentrate on the abdominal musciles?

I've gone to physical therapy twice in my life for lower back pain. Each time the exercises I was given concentrated on improving the strength of the abdominal muscles, never the gluteus group of ...
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What triggers yawning for some people during physical activity

When exercising, oxygen demand increases. Heart rate increases, breathing rate increases, and depth of breaths increases. Some people experience yawning during exercise. What reasons would that ...
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51 views

Exercising a leg with a broken femur

Should the leg with a broken femur (which has been treated with surgery) be exercised when the swelling of the leg has sufficiently decreased, but the muscles still hurt?
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Walking as a healthy habit for the aged and my doctor's thoughts on it

Nowadays, many doctors recommend old people, who cannot do gym or such huge physical fitness exercises, to walk, as walking is considered and a clinically proven very good way to keep good health for ...
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219 views

How to improve joint cartilage thickness

Does anyone know of exercise or modality(ice/heat/tens) protocols that are supposed to increase joint cartilage bed thickness? This is excluding stem cell injections. I imagine that such a protocol ...
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How should I deal with my leg being tired at the fourth day after the overexertion?

For days ago, I run backwards and my thies still hurt (just like muscles hurt when they're exerted). Is that a sign of any injury?