What does it mean when your calf muscles and arm muscles tense up and relax on their own?  It feels like...?
922495
You need more potassium.\n\nCoach
299424
Over-stressing the muscles. Like going for a really long bike ride when you haven't been on a bike in awhile and being unable to walk afterwards lol.
967529
hmmm,\n how to describe this?...\nyou go to a wall, while facing the wall, place your hands on the wall, place the foot of the shin you need to stretch behind you, about 2 feet away, place the other foot closer to the wall. then to stretch the front of the shin, (the leg that is behind you), bend your knee, don't put the knee too close to the ground, not good for your joints...\nhope this makes sense??
1132623
shaking usually happens especially when you are doing free weight b/c of the stabilizing muscles.  you'll notice it especially if you switch from machine to free weights, or if you are generally weak and have not worked out for a long time.  \n\nusually if i stop working out and restart, the shaking starts, so i usually start with machines to just get my muscles going instead of over doing it and being sore for several days.  once i feel like i have smooth movement, i switch back to free weights and the shaking will restart, but will go away once you have regain the stabilizing muscles to support it.\n\nmy advice, keep doing what you're doing, but don't overdo it.  take it easy for 1-2wks, then start pushing yourself harder and harder.
1050667
If you squeeze, you make your muscles tense up and as a result, you feel weaker. Try not to squeeze or tense up so much. Use the strength in your biceps not so much on your fingers/hands.
903026
If you're bold enough to ask complete strangers on Yahoo, why aren't you able to discuss it with a doctor?  You should be seeing one anyways, at least once a year.\n\nThe bottom line is that you're probably completely normal.  \n\nAs for the discomfort you experience, think of it this way- when you stretch your legs (or any other part of your body) and you're not accustomed to stretching, there will of course be discomfort.  Why?  Your legs aren't used to flexing.  Eventually, with further stretching, the muscles in your leg become flexible.  This is the same for every other part of your body.\n\nYes, I am a man.  So what?  Does that mean I'm not allowed to have knowledge or insight into these things?  \n\nI don't understand why others think questions like these are "gross".  Let's get a little mature here.
971351
dude, i'm happy to help, but you have to take your picture off your little square. seriously.\nanyways, this is normal, your muscles are getting used to the stress you've put on them. you will probablly feel sore if you go really hard one day, but if you continue to work out everyday, it is normal, and GOOD not to feel sore after every workout.\nkeep it up!
751985
Once those muscles get tense - from sitting at a computer all day, from sleeping in an awkward position, etc. - they stay tense and need to be "released" by stretching or a massage.  We should all stretch, at least in a small way, several times a day to keep our muscles loose.  Once they get tense, it's easier for them to get tenser.  Try getting a massage, finding some good stretches, yoga, and using heating pads or taking hot baths.  Also, be sure to drink lots of water, as water helps remove the toxins in your muscles and the rest of your body that make you feel yucky, sore, and tense.
133659
A muscle spasm is a muscle that tightens up and hurts until it is released by rubbing. What causes it, is either lack of Vitamins in the body and or tension in the tendons.
323976
AAaaahhhh......A good stretch.....\nUsually when you stretch your muscles, this allows blood to circulate, along with the oxygen that you have taken in with that deep breath you just took. This gives your muscles that "feel good" feeling.\nYou just gave your muscles a deep breath.
497888
Because they never get a break!!\n\nUntil your calves are in shape, you shouldn't work out more than every other day!\n\nTake a day or two break, then continue running on the treadmill every other day. When you feel your calves are much stronger, either increase the frequency or the time period.
324615
Stretch, breathe, and meditate... better yet YOGA!!! Nothing better than Yoga and some herbal tea to make you feel better, not to mention all that stretching will help stretch out your muscle spasms.
184443
It means that your ateries and your veins are squeezed, and so they are slowed down by the pressure you are holding up in your legs. so then you feel a tingly feeling because your blood is now flowing and is easier for the blood to flow.
109194
May be you have become weak and your leg is vibrating sometimes because of weakness. Check out your doc if you think that is the case.
596866
sounds like you've pulled or strained a muscle
1050720
Our muscles, liek any oteh rtissue constantly need oxygen. while teh heart pumps teh blood to teh muscle tissues via arteries, teh motion of teh muscle temsleves when they flex helps propel the blood through teh veins back to teh heart. When we sit for long hoursm our back muscles barely move, therefore they do get poor circulation, which starves them of oxygen, resulting in acumulation of toxic lactic acid which causes cramping and knotting of back muscles. Stress doesnt hlep , because it causes a diminished blood flow to muscles and increased flow to internal organs as teh body tries to protect itself from iminant danger.\nA massage forces fresh oxygen rich blood into teh muscle, allowing teh muscle to relax. This sends a feel good signal to teh brain. Also skin to skin contact releases a hormone called oxytocin that promotes a relaxed and eup[horic state
604017
It is very common for muscles to twitch as they relax.  Her behavior does not sound extreme.  There should be nothing to worry about.  The link below discusses this.