What causes muscles to get stronger when a person exercises?
928751
when you exercise you kind of like ripping your muscles. when they get repaired on their own they become bigger and stronger. i didnt give you an answer from medical point of view, but you ask any doctor and they tell you this, but in a better description. thanks to you.
915794
It's always good to work out, but you might want to do low impact, make sure to lift weights, build muscle, it will only make you stronger.   Drink plenty of water and when you are having sypmtoms, don't push yourself or overexert yourself ever.  Just make sure to keep hydrated.
248837
Working up to Bigger, Stronger Muscles\n\nIs it possible to increase muscle mass by doing more repetitions with lighter weights, or do you need to be lifting heavier weights?\n\nIt depends on your intensity level. You can increase your strength with heavier weights, but let’s say you’re capable of squatting 225 pounds for ten repetitions and that, physically, you can do no more.\n\nIf you reduce the weight to 125 pounds, but increase the reps to 20 – and then complete another rep on top of that – you’ll have stimulated your body to respond with increases in strength and muscle mass.\n\nProviding you have proper rest and nutrition, you muscles will be stronger and bigger next time you train.\n\nOf course, there are genetic limits of this, but the general rule applies to everyone.\n\nSo the answer is less about the number of reps but how much effort you put into your set.\n\nBasic rules to follow are:\n\nMaintain proper form \nGradually increase the weight or reps \nDo most sets to – or almost to – muscular failure; in other words, until you simply can do no more. \nAlso, keep in mind that the upper body generally responds well to 10-12 reps; the lower body responds to 10 to 20 reps.
748232
you need to stretch  your muscles first, thats why
1170766
If you streach too much your muscles wont have the rigidity or strenth that they would normally have.  This comes with over streaching.  It can be counteracted with weight training though.  There should be training on flexibility and strenght at the same time so that way your muscles remain strong and flexible.  It slows the flexibility process down but is much safer than flexibility alone
575083
lifting, pulling, exerting greater forces
73583
It's supposed to increase muscle side.
234625
because you  exercise and lift weights ??... you  big strong   guy you...lol...
525854
You can try to focus working out the weak side a little more than the stronger one, but it is natural for one side to be stronger.  Most people favor one side and therefore have stronger muscles on the opposing side.  Rule of nature.
891659
It's probably because you gave your body time to rest and recover from the streneous exercise you had been doing. Now that your muscle tissue has rebuilt, it is stronger (well, the way you get muscles is first breaking them down and then they rebuild themselves stronger.) It has been proven that if you over-exercise, your body will become weaker and weaker unless you give it time to recover. Now that you have gained some weight, you probably also have more motivation than you did before to lose that weight and exercise again. Hope I'm of help!
426103
it delays the break down in muscle so you can work out longer.
1088783
No.  Women are often afraid that lifting will cause them to gain too much muscle, but it's not really a concern for most of them.  Men produce much more testosterone than women do, allowing us to build muscle much more easily than women.  The large and grotesque professional female body builders you see take steriods to grow the muscles they have.
104640
Weightlifters that look like they are carrying suitcases in both hands all the time usually become that way because they don't stretch. Stretching relieves tension and "loosens up" your muscles while gradually creating a greater range of extension of your arms/legs etc.
1115051
it will increase the pectoral muscle under your breast, but exercising may reduce the amount of fat in your body.. and woman store fat in their breasts.
100526
Weight Training.  Here's a complete list of exercises:\n\nhttp://www.preventdisease.com/fitness/Strength_Exercises.html
4656
Muscle grows in response to being torn down.  As you grow stronger, you need to increase the amount you are lifting in order to progress.  Doing 300 curls with a 5 pound dumbell will only serve to increase your heart rate a little.  If it weren't this way, we'd all have massive legs from just walking around.  Will Ferrell in Anchorman is the only person I've seen get a 'deep burn' from doing 'over a thousand' reps with a 5 pound dumbbell.
747545
Well, kind of. Stretching isn't going to strengthen your muscles. It will however keep you loose, and in being loose it will help keep you from injuring your muscles and allow you to perform at a higher level without the risk of injury. Stretching will let you use your muscles to their fullest extent, rather than be limited by their tightness.