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8
votes
5answers
5k views

Can animals train to be noticeably stronger, faster, more agile.. than other animals of the same species?

Humans have huge variation in physical ability because of exercise differences. Olympic athletes are a number of times stronger than average people on the street. It seems that variation in animals is ...
0
votes
1answer
68 views

Why is exercise good? [closed]

The fact that exercise is healthy is a bit counter intuitive to me. If we have any machine, a car for example, the less we use it the longer it lasts. Then how is it that using our body to do sports, ...
2
votes
0answers
63 views

Glycogen replenishment after exercise

In the body, the liver holds between 90-110 grams of glycogen in storage, while skeletal muscle storage makes up another 400 grams. If a person exercises and depletes both stores, when a carbohydrate ...
20
votes
3answers
217 views

Why is the heart adversely impacted by chronic psychological stress, yet it benefits from routine physical exercise?

Chronic psychological stress is commonly said to be deleterious to the heart, and predispose one to cardiovascular disease. Yet the opposite is said about regular aerobic exercise. Physiologically, ...
3
votes
1answer
59 views

What is the precise mechanism by which exercise reduces chance of cancer?

Sources like this: http://www.cancerresearchuk.org/about-cancer/causes-of-cancer/physical-activity-and-cancer/how-physical-activity-prevents-cancer point out that we can reduce our risk of some ...
0
votes
0answers
6 views

can peripheral nerves fatigue in the working muscles (while running, for example) be a limiting factor of VO2max?

VO2max is well known as an important parameter for exercise. The limiting factors of this parameter are a) shunting of arterial blood around exercising muscle; (b) heterogeneity in the distribution of ...
2
votes
1answer
66 views

Is it possible to lose weight doing brain exercise?

According to this article human brain consume a comparable amount of energy with skeletal muscle. So is it possible to do some brain exercise (calculate something in mind etc.) instead of physical ...
1
vote
0answers
15 views

Reference for most up to date sport physiology

I currently have Exercise Physiology Nutrition Energy And Human Performance, 7th Edition, 2012, McArdle et al. as my reference book for Exercise physiology. However, based on a question I ...
-4
votes
2answers
219 views

Where does the extra blood in arterial circulation when exercising come from? [closed]

When exercising more blood is in our arterial circulation. Where did this blood come from and how did it get there ?
1
vote
1answer
224 views

Why is the pressure pulse bigger after exercise?

Right after exercise, is the amplitude of the pulse smaller or bigger than resting period? And why is that ?
1
vote
1answer
27 views

Can cognitive enhancement from exercise be replicated/replaced through prolonged standing?

Can cognitive enhancement from exercise be replicated/replaced through prolonged standing? Like, will BDNF be released from prolonged standing. I would prefer to use a standing desk than exercise (...
61
votes
2answers
7k views

Why does it hurt the next day after doing significant exercise?

I think this is a fairly common observation that if one does some significant amount of exercise, he/she may feel alright for the rest of the day, but it generally hurts bad the next day. Why is this ...
2
votes
0answers
181 views

What drives max heart rate on beta blockers?

In a healthy human being, the increase in heart rate from rest to around 100 to 110 beats per minute at low intensity exercise is due to withdrawal of the parasympathetic nervous system's influence. ...
2
votes
0answers
26 views

The link between muscle mass and muscle strength and how to train for each [closed]

I'm getting into my fitness and am beginning to see an increase in muscle mass. However, I look at people like Bruce Lee, Elliott Hulse, Mohammad Ali and Wim Hof who are capable of incredible strength ...
8
votes
1answer
827 views

Effect of cold showers after intense training

What is the effect of cold showers after very intense training (body fully covered in sweat, high pulse, increased body temperature)? I'm especially interested in how it affects perspiration.
7
votes
1answer
364 views

Will you stop sweating if you exercise in a cold enough room?

It's common knowledge that you will sweat from being in a very warm room. And you will also sweat from exercise, presumably because it raises your body temperature. But if you exercise in a cold ...
1
vote
0answers
11 views

Non-splenic pools of erythrocytes?

In splenectomized animals, where could red blood cells be released from, to explain an increased hematocrit after exercise or muscular contractions?
1
vote
1answer
61 views

What makes us “tired” in the gym that forces us to rest? [closed]

If I'm doing push ups or any other of gym exercise, I can do 10 in a row, but each one I do I feel more "tired", but if I rest for 5 minutes, I'm much "full of energy". Please explain me exactly what ...