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Questions tagged [exercise]

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

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1answer
40 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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1answer
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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1answer
3k views

Im buying BCAA's for building muscles but afraid of losing serotonin

I'm aware that BCAA's deplete serotonin, (serotonin is needed for good mood and antidepressant) What should take along with BCAA capsules to avoid any side effects. I heard taking Vitamin B6 will ...
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0answers
21 views

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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0answers
9 views

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 ...
3
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2answers
220 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 ...
0
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1answer
22 views

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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1answer
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 ...
6
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0answers
29 views

What exactly changes when range of motion improves through stretching?

Imagine I haven't moved much in recent years (couch potato, or injury...) Assume no other problems. Then I do exercise/stretching/physical therapy for a few months, and my range of motion in, say, ...
2
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2answers
100 views

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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2answers
258 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 ...
3
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1answer
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 ...
3
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1answer
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 ...
7
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2answers
465 views

Does staying at high altitudes increase your stamina?

Let's say someone lives at sea level and then stays at an altitude of 2'500 m for three weeks. Her body will adapt by increasing the amount of red blood cells. In the end, her stamina will be as good ...
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1answer
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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0answers
12 views

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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0answers
78 views

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) ...
2
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1answer
38 views

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 ...
4
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3answers
205 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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0answers
46 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 ...
1
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0answers
24 views

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 ...
4
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1answer
3k views

Is there any cure for congestive prostatitis?

The "Congestive Prostatitis" is described as a condition in which there is excessive fluid accumulated in the prostate gland. Is there any cure apart from ejaculation? Can the condition be improved/...
1
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1answer
36 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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0answers
45 views

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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0answers
33 views

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 ...
3
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2answers
162 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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0answers
20 views

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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0answers
56 views

Stretching in the morning [closed]

I commonly stretch first thing in the morning. However, I have heard that stretching without exercising beforehand can be bad for my muscles. Is this true?
2
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1answer
117 views

Protein and Spirulina [closed]

I am working out, and I would like to make sure that I am taking in enough protein. I am a 21 year old male, and I do about an hour to an hour and a half of daily cardio type exercise. I currently ...
2
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0answers
33 views

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 ...
3
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0answers
37 views

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 ...
5
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2answers
136 views

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-...
4
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1answer
665 views

"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 ...
2
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1answer
394 views

Disadvantages of Running in Night after dinner [closed]

I want to reduce my waist size and I don't get much time in morning to run, so I am planning to run after dinner for 30 - 40 minutes.... My age is 26. Is there any disadvantages of running in night ...
2
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0answers
34 views

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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0answers
30 views

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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0answers
17 views

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 ...
4
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1answer
126 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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2answers
126 views

How to reduce fatigue after office? [closed]

I work 9-6 in a software company. There's not much physical movement in office. I experience fatigue on reaching home. What can I do on weekends and even weekdays so that I don't feel tired after ...
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1answer
56 views

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 ...
13
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2answers
208 views

Strength training vs Carpal tunnel syndrome

As a guitarist, I have often heard that it was not good to train your hand with certain aggressive strength training tools. Are the more aggressive tools for strengthening your hand (Finger Pullups, ...
3
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0answers
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 ...
4
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2answers
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 ...
9
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1answer
151 views

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 ...
7
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1answer
97 views

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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2answers
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 ...
5
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1answer
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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0answers
139 views

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,...
6
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1answer
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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0answers
140 views

The most confusing concepts in weight loss

Here are some of the subjects that I found so confusing : Try to eat good Carbs/Sugar not the bad ones (simple / complex ): Checked internet and from what I understood that they are quite similar ...