The stationary bike is great for your calf muscles and it would be best because it tends to focus more on your calf muscles. For jogging continuously, it helps keep your whole body fit. Both are great for you though!
Well, I'm not completely sure of this, but in my science class we were talking about slow- twitch muscles (like your esophagus for example) and fast twitch muscles (like your leg muscles). Anyway, I asked do sloths have slow twitch muscles in their legs, and he said to look it up, so I did, and it turns out they do! So the reason is they have slow twitch gastrocnemus (calf) muscles!
There are fast twitch muscles fibers in all of your muscles, especially in your legs.
You can get a twitch from stimulation or damage to the muscles.
Slow twitch
when muscles twitch
fast-twitch NOT slow-twitch
calf muscles and arm muscles adductors abductors
your calf. A calf raiser works the calf muscle. A calf its really made up of three different muscles: the gastrocnemius, the plantaris, and the soleus.
Cheetahs have mostly fast-twitch muscles, which allow them to achieve high speeds in short bursts during hunting. These muscles facilitate rapid acceleration and swift movements, making cheetahs the fastest land animals.
gastrocnemius
Your right calf may twitch at night because of restless leg syndrome. Restless leg syndrome can cause twitching, aching, itching and tingling sensations.