Recognising the value of the free time that most prisoners have in prison, many correctional institutions offer skills and vocational training as well as formal and non-formal education programmes as complimentary parts of a sentence.

UNESCO: M��nster Prison Library

On a day that I need to go to the correctional facility where I work for the 5:45 a.m. roll call, an evening strength training workout makes the most sense.

CNN: The key to fitness? Schedule it in