Broke your arm? Exercise the other one to strengthen it
Source: Medical Xpress
I always knew that working both hands/wrists together after coming out of a cast was beneficial for the injured limb, but now it looks like exercising the uninjured limb while the cast is still on can have benefits too.
If you have ever broken an arm and had to wear a cast or splint for a few weeks, you will be familiar with the alarming loss of muscle and uneasy feeling of weakness experienced after removing your cast. Most people do not do much exercise while a broken arm is healing and can struggle with this loss of muscle, known as "atrophy," and weakness for many weeks after the injury.