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4
votes
1answer
44 views

Scientific evidence for physical, not psychological, somatotying

What actual evidence is there, for or against, towards somatotypes on a physical level.
2
votes
1answer
71 views

What causes an annoying “lethargy” which increases on consecutive days of rest from running?

This question is about something I've been experiencing consistently for some fifteen years. If I'm training consistently in running, say putting in 8 miles a day, five days a week, I experience a "...
3
votes
0answers
51 views

Climbing the stairs in digitigrade fashion - less efficient, harmful?

When going up a staircase at work, I recently realized that my heel barely ever touched the surface of the stairs. At first, I dismissed it, figuring that it just made sense to put the entire foot on ...
15
votes
8answers
58k views

How does Voodoo Floss work?

Voodoo Floss is a new(?) trend in CrossFit that basically involves, if I understand it correctly, wrapping a muscle group or joint very tightly in a thing called a voodoo band while stretching or ...
2
votes
2answers
826 views

When a muscle can flex so tight it's painful, is anything wrong?

As I train various muscle groups, I've noticed that I cannot flex a few of them the way I would biceps or quads. The flex becomes painfully tight verging on a muscle cramp before I finish the range of ...
3
votes
2answers
118 views

What might happen if I get very low blood sugar during a run and continue running?

During a recent run, due to low blood sugar, I developed double vision. Otherwise, I felt great. Out of prudence, I quit and decided to walk home. I had eaten nothing for 14 hours before the run, so I ...
5
votes
2answers
122 views

Relation of physical fitness and age

Why does the physical fitness tend to decline around the age of 30-35? It is obvious that many athletes(football, sprint etc.) tend to stagnate and 'lose' the physical fitness regarding speed, stamina ...
2
votes
1answer
100 views

Should cows milk be avoided during periods of heavy exertion?

Assuming you are not lactose intolerant, does milk have any specific negative effects on you during heavy exertion? We're not talking about milk calories or fat related to weight loss. Does milk ...
1
vote
1answer
312 views

Mechanism and recovery of lower back pain?

I normally recover from lower back pain just going to run. It results from studying too much and sitting - skipping gym and sport during exam weeks. It alleviates normally after one hour running. ...
3
votes
2answers
356 views

Is the muscle pump after exercise due to increased cellular Na (due to reduced ATP availability)?

Cellular hypoxia leads to reduced ATP, resulting in Na/K ATPase down regulation reducing the activity of the Na/K pump. (edit removed the original link since I'm limited to two links in a question ...
2
votes
2answers
241 views

Is there a physiological reason why male to female transsexuals can't compete in women's weightlifting?

Let's assume the following for a moment: a person grows up as a man, with the matching hormonal profile for his first 20 years that person then decides to undergo hormone replacement therapy (HRT) ...
2
votes
1answer
91 views

When are the physical benefits of a single workout realized?

When does your body actually build muscle in response to fatigue from a workout? For example, if you slam your arms in one work out ( say any combination of, curls, pullups, pushups, bench press, etc....
1
vote
2answers
124 views

Is there a connection between general fitness/workout gain and body hair?

It might be a silly question but something that have been bugging me for many years now. Pretty much all male athletes (regardless of their discipline) look pretty much like newborn babies with the ...