1. The basic principles of envelope theory are explained. By not
overexerting themselves, people with CFS can avoid the
setbacks and relapses that commonly occur in response to
overexertion while increasing their tolerance to activity.
2. By collecting time series data on fluctuations in energy
levels, important clinical observations can be made in respect
to a client’s unique condition and experience with CFS.
Jason LA, Melrose H, Lerman A, Burroughs V, Lewis K, King CP,