what muscles does the stationary bike work??
820448
thighs, butt and some calf.
362720
Push ups work great. If you cant do them on the floor, try doing them against the wall. Place both hands flat against the wall, making sure that they are paralell to your shoulders. Slowly push down and release making sure to engage your muscles. \n\nAnother good exersice is the chest extention. If you dont belong to a gym that has the machines, just get two dumbells, hold them in each hand. Sit in a chair straight. Bring both your arms up to the level of your breast with your elbows out (kind of like u are doing the funky chicken dance) Then move your arms back toward the small of your back, like you are almost pinching the area between your shoulder blades. Move your arms forward, but take care not to lock your elbows. Do three sets of 10-15 of these.\n\nYou can also try chin ups or french presses. These excersizes may not sound like they work your breast area,  but they tighten up the muscles AROUND the breast area, making them sit up tighter and firmer.
266333
Oooh, I'd be careful with that.  You should really speak with a doctor, preferably an orthopedist about that.  I'd say "yes" to things like riding a stationary bike or other low impact exercises.  I'd say "with care" to things like weight lifting, running, aerobics, etc.\n\nWhy don't you give spinning a try?  I just took that up recently and love it.
1105147
What is your question?  joints provide the ability to move.  What are you asking?
1051697
Gluts connect to the hamstring.  Lunges are definitely the best all-around excerise for this!!!!! Walking lunges or you can do hamstring curls on a machine.\n\nGood luck!  I've been working on it my entire adult life...tough for women to maintain and the "sore" affects you everytime you walk for DAYS.
791737
treadmill. u can do many exercises on it. run, walk, jog, uphill climb, etc\n\nelliptical goes back and forward, same movements each time thus working the same muscles
1046913
treadmill most definately....works more of the legs and butt than a bike does
12014
Though I like most answers to this question, posted here, and also enjoy this source http://howthingswork.virginia.edu/print.php?title=Bicycles&startdate=0&enddate=99999999&topic=bicycles, I would actually answer this question with Newton's Three Laws of Motion (http://csep10.phys.utk.edu/astr161/lect/history/newton3laws.html), especially the Second Law of Motion: F = ma.\n\nIn this case, a few forces come into play: gravitational force, gyroscopic precessional force, as well as the force applied by the rider of the bike, to name a few.  If the net force (F) is non-zero, the bike's center of gravity would move with an acceleration (a.)\n\nWhen a bike is stationary, there is only gravitational force.  If the bike's center of gravity goes off its base of support, the bike would move toward the ground in that off direction.  Now if someone would apply a force whose vertical component cancels or is greater than the gravitational force, then the bike would not drop to the ground, for the same reason: no F, no a.\n\nWhen a bike is moving, the forces generated by the gyroscopic precession and the steering of the rider would cancel out the gravitational force, keeping the bike moving and not falling to the ground.  At a slower speed (hence a smaller gyroscopic precession force) or with a novice rider (not knowing how to steer the wheel) or a combination of both, these forces would be less than the gravitational force, and the bike would still fall.  Any kid learning how to ride a bike would tell you that :-).  Similarly if we push a bike forward, it would eventually fall, once the gravitational force would dominate and a (acceleration to the ground) would be greater than 0.
105256
normal exercise. press ups? i got it!!! do weights!!!
509148
Quads, hamstrings, calves, shins, and depending on the kind of brakes you have your wrist muscles can be worked by controlling the brakes to slow down or come to a quick halt.  It does work your butt by strengthening your quad area and all that junk in the trunk can be toned into muscle.
770641
Real riding?  Or just noodling around the neighborhood?\nCycling as an athletic endeavor or mode of transportation utilizes your quads, gluteal group, calves (mostly posterior muscles), hip flexors (tensor fasciae I think), and core muscles (lumbar and oblique muscles need to stabilize the body).  \nThe power generated by a cyclists legs must be directed by equally strong lower trunk muscles.  That's why a professional cyclists will look like a world class athlete from the toes to the obliques.  Then like a mal-nourished accountant from there up.\nAll that said - without a great heart (both actually and metaphorically) nothing else matters.\nCyclists will frequently complain of arm and neck fatigue.  But these muscles are obviously not directly involved in moving on a bicycle.
453120
The muscles have a certain muscle tone (partial contraction) which keeps the body upright instead of limp. This is all your muscles, not just in your back. However, your back does have the long muscles running down your spinal chord (the name escapes me currently which makes me sad). Also, your leg muscles will partially contract to keep your legs upright.\n\nUnless you're dead, medicated, or paralyzed - your muscles will always have a partial contraction (aka tone).
811978
I have very bad knees, I've already had surgery on one of them for degenerating cartilage. I'm only 20. Before the surgery, I tried physical therapy. In there I found some good stretches, but the most important thing was the discovery that I can use the stationary bike with minimal or no pain. If you decide to do this, keep it at a lower resistance. If it hurts, reduce the resistance. I usually bike on level 2 or so, although bikes differ.
642471
Riding a bike workss out the following areas to varying degrees: hamstring, hips, calves,  spinal muscles, rear abdominals, and abductors.
312399
Hip flexor. It's the muscle you use to lift your legs. I pulled it once and it hurt so bad and I was limping the rest of the day.
396570
when i exercise i do bicycle crunches. my back is almost flat on the ground and im getting an ab workout.
745016
You perform no work holding an object steady because your arm could just as easily be replaced by a shelf.  You only perform work when you move an object against a force.\n\nYour muscles will consume energy as they strain against the weight of the object, but no energy will be transferred to the object.\n\n- An elderly Professional Engineer