Take a look at this interesting article we ran across.  Immobilizing a broken bone is the way to allow it to heal.  Immobilization is necessary for the bone but not very good for muscles / tendons.  This article speaks of ways to keep your immobilized limb strong but still giving it time to heal at the same time.  By using eccentric muscle contraction of the non-broken limb the effected limb did not lose strength from immobilization.  This information can be useful for everyone from your 6 year old that fell off of the swings and has an arm cast on to your grandmother who has fallen and broken her leg.  Let us know what you think.

https://www.cnn.com/2018/10/09/health/broken-bone-exercise-atrophy-partner/index.html