... is the coach that maintains the most contact with an athlete "If the coach can learnhow to convey messages which have a sound foundation in psychological knowledge, andthus can act as the agent ... itself Another method that is similar to PRT is autogenic training "While PRT concen-trates on relaxation alone, autogenic training brings in other sensations associated with thestate of relaxation, ... personal and environmental variables play theirpart in determining the relationship between effort, performance, rewards, and satisfac-tion." (Garfield, 1984:34) The argument advanced by Porter and...