Voluntary :)
It really depends on if you are trying to flex your muscle or not.
voluntary muscles are muscles that work when you make them. involuntary are muscles that just go when you don't think about.
No, it is by definition involuntary. The neural impulses which cause the action do not go through the brain at all.
The rhythmic contractions of smooth muscle down an esophagus is called peristalsis. The muscle contractions that help move the food down through the esophagus (and through much of the gastrointestinal tract) are called peristalticcontractions.Interestingly, even if you are hanging upside down in a gravitational field (such as a kid hanging by his legs from the monkey bars), you can still swallow food and it will go to your stomach due to these contractions.
When it does something that you didn't even want it to. Every action will generally have to go through your brain, and if you didn't send a request to lift your arm up and it does it anyway, that is involuntary.
Jumping rope is involuntary. You can move your arms freely to wave the jump rope over your head and also jump over it. If you were to say that the jump rope was too cold or too warm, then it would be voluntary because your brain will send you a message when you touch the jump rope to let go or pull away.
You could have a torn muscle or a deficiency in magnesium or electrolytes.
any falls or accidents can cause leg pain, you may have pulled a muscle or ligament in your leg, go get it checked at the doctor. Leg pain can be a sign of anything from nerve damage to arthritis. Be careful and get it checked, as I mentioned above.
Here's a sentence using involuntary. Digestion is an involuntary action that your body does to gather nutrients from food. There you go....
Actually, yes, leg weights could contribute to weight loss and/or muscle mass increase.
Yes, due to the various problems linked to scolisos. Individuals with scolisos may have a slight (or not so slight) leg length differential. The longer leg hits the ground first - but it has not stretchabilty to it. It is harder to stretch, and muscles are tight, compacted and it can, as years go on, cause great discomfort, and with weaker muscle function in the longer leg.
theres nothing you can do, you have to chop your leg off