This study identified factors associated with exercise participation a
nd adherence in a sample of 102 sedentary, functionally limited, commu
nity-dwelling adults aged 60 to 94 years who participated in a home-ba
sed resistance training program. Stepwise regression analyses revealed
that baseline physical factors (i.e., higher levels of mobility, weak
er muscle strength, and fewer numbers of new medical conditions) were
associated with higher rates of participation in the home program. Pos
itive attitudes and a sense of control toward exercise, lower levels o
f confusion and depressive moods, and the development of fewer new med
ical problems during the program were related to higher levels of adhe
rence to the program. Findings revealed that although physical health
variables were the primary indicators of an older person's overall par
ticipation in the program, it was the psychological factors that were
most important to adherence to this home-based program.