Evaluation of an instrument for assessing behavioral change in sedentary women

AORN Journal,  Sept, 2002  by Mary Lynne Weemering

• E-mail
• Print
• Link

M A Nies et al Joumal of Nursing Scholarship Vol 33 no 4 (2001) 349-354

It is well acknowledged in the United States that up to 36% of women are obese, making obesity and lack of physical activity an important public health issue. Among the health problems associated with obesity and lack of physical activity are increased rates of cancers, cardiovascular disease, coronary heart disease, and type 2 diabetes. Health care providers understand the importance of implementing measures to promote physical activity in sedentary women. Women themselves, however, identify a number of barriers to physical activity, including lack of time, embarrassment, inability to exercise, and lack of enjoyment.

Researchers used three theoretical constructs to evaluate behavioral change, including goal setting, restructuring plans, and relapse prevention/maintenance. These constructs were incorporated into a 16-item instrument.

Methodology. Women in this descriptive study were recruited by flyers and word of mouth in a major metropolitan community in the midwestern United States. Participants were recruited until a priori was reached. The sample consisted of 181 women. Participants called the research office and initially were screened via telephone. Those who reported physical inactivity were invited to come to the research center to complete the questionnaire. The questionnaire used a five-point forced-choice Likert-type scale rating the level of agreement. Participants were asked to return for follow-up at six months and 12 months.

Results. Data were analyzed with regard to the ability of the instrument to distinguish the three theoretical constructs. Among the statistical models used were latent variable modeling using covariances and maximum likelihood estimation with AMOS (ie, analysis of moment sol,rare), chi-square difference tests, the comparative fit index, root mean square error of approximation, and the goodness of fit index. Although some modification was needed, overall, the analyses indicated support for a three-factor model for the instrument. The construct showed poor reliability at six and 12 months. Additional modification and retesting is in order.

Implications. Health care providers must find new strategies to promote physical activity. This study tested an instrument designed to evaluate programs that promote physical activity. Although this instrument needs additional modification and testing, it may be useful for evaluating physical activity programs.

MARY LYNNE WEEMERING
RN, MSN, CNOR
NURSING RESEARCH COMMITTEE

COPYRIGHT 2002 Association of Operating Room Nurses, Inc.
COPYRIGHT 2002 Gale Group