Questions tagged [exercise]

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

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Correlation between pre-pregnancy training level of abdominal muscles and the risk of getting diastasis recti

Is there any evidence that (very) strong or (very) weak abdominal muscles before becoming pregnant increases or decreases the risk of developing diastasis recti during pregnancy? If so, what are the ...
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What exactly changes when range of motion improves through stretching etc?

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, ...
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Mechanisms that causes prominent veins during physical exercise

I have just read this article about why veins become prominent while exercising: Why do veins pop out when exercising, and is that good or bad? I have some questions about this: The article ...
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53 views

classical conditioning of glucose levels?

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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54 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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What can reduce physical symptoms of mental exhaustion, when you cannot remove the root cause?

If a person decides to work a mentally demanding job, giving their all to it, and makes themselves exhausted every day, what can they do to prevent/alleviate the feelings of exhaustion which plague ...
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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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33 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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What nutrients can support an immune system to counteract intense workouts?

I have observed repeatedly that if I push myself in an aerobic workout, then not just my muscles, but my immune system also takes a beating. My chance of catching a cold is then much higher. I've made ...
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Altitude Sickness & Brain Damage

I stumbled on an article about altitude sickness and causing permanent brain damage; is there validity to this for less extreme mountaineers? It is common for Colorado front rangers to ascend up a 14,...
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831 views

Would doing Kegel exercise by hanging weight to penis is really effective?

An advertisement of a Kegel equipment for men claims that hanging more weight to the erected penis while contracting the pubococcygeus muscle will help make it stronger. Superficially, this makes ...
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Scientific Basis for Apple Watch Activity Rings

I have just started using an apple watch, and am finding that it's "activity rings" feature encourages me to: perform more than 30 minutes of exercise a day (green 'exercise' ring); move around ...
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183 views

Exercises for strained knee?

I am only 18 and I have injured my knee by doing squats. I have stopped them, I went to my doctor and he checked my x rays and said everything is normal. He did tell me that I have strained my knee ...
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Will running next to a highway cause me to inhale more particulates?

I'm wondering if running next to a highway will cause humans to inhale more particulate matter and harmful substances.
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36 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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22 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 ...
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39 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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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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39 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,...
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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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Time of day to go to the gym (cardio + weights), with regard to mental performance

I am wondering what is the best time of day to go to the gym, and still be able to study efficiently afterwards/not forget what i learned that day? Basically I can imagine myself going at morning, ...
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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 ...
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Does aerobic exercises increase the blood around the tendons that attach to the epicondyles at the elbow end of the humerus?

http://www.livestrong.com/article/315152-how-to-increase-tendon-strength/ (mirror): Increase circulation throughout your body to improve the blood flow to your tendons. Part of the problem with ...
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Soreness from not exercising

I exercise intensely for roughly 30 minutes 7 days a week. Monday, I got a sinus infection or cold or something, and because it was difficult to breathe, stopped exercising. I've gotten progressively ...
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What causes myalgia after strength training?

You can get muscle pain 24 hours after strength training. As far as I know, this is caused by some cracks in the muscle. Pain is often caused or initiated by inflammation, by which some enzymes and ...
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Upper body exercises in limited space

I'm recovering from a serious COPD exacerbation, and want to start building my upper body strength; my goal is both to increase the strength of my chest muscles for breathing, as well as reduce my O2 ...
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Is it possible to avoid a breast reduction surgery via exercise?

I've bumped into a few articles about women who had to take a breast reduction surgery because their large breasts were the reason of unacceptably high health issues, ranging from psychological issues ...
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Tight upper back when running on a treadmill

When I go to the Gym and do running on a treadmill I get a tightness across my upper back when I run at 9km/h or more. It's worth noting that I have asthma and use the Brown preventer inhaler and the ...
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Is muscle ache a possible sign of the body using muscle mass as a source of energy due to the lack of nutrition?

When doing maximal effort exercise after not eating for a long time (24 hours) before the exercise, and not eating for hours after the exercise, I feel moderate muscle aches the day afterwards. Is ...
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Why is it difficult to produce much force/power on a sprained leg during exercise?

Lately, during exercise, I've found it difficult to produce more force/power on my leg which is sprained, why is this? what's the physiological/anatomical explanation of this?
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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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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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Arm exercises: when to alternate arms?

I need to do three arm exercises A, B, and C. For each exercise, I perform 2 series of 10 repetitions. I can only work with one arm at a time. Is there any scientific study that looked at which of ...