Document Detail

Aerobic exercise equipment preferences among older adults: a preliminary investigation.
MedLine Citation:
PMID:  12700430     Owner:  NLM     Status:  MEDLINE    
The purpose of this study was to develop an instrument that would measure the aerobic exercise equipment preferences of a frail older population and to see, despite a small sample size, if a many-facet Rasch analysis would provide useful information concerning the construct validity of the instrument and the equipment preferences of the sample. Sixteen ambulatory seniors (M = 82.0 yr +/- 6.6; 4 males and 12 females), who resided in a local retirement community and were involved in a structured fitness program, evaluated the following exercise equipment: Schwinn Air-Dyne, Nu-Step Recumbent Stepper; Monark bicycle ergometer; Stairmaster; and PTS Turbo Recumbent Bicycle. Participants used the equipment for 5 min. and then completed the survey via a structured interview technique. Test-retest reliability coefficients indicated the participants' responses were stable across days for each piece of exercise equipment (proportions of agreement >.83; km >.77). A many-facet (equipment, items, participants) Rasch analysis verified that 12 closed format items defined a linear construct of equipment preference (separation = 1.8; reliability =.77). The pieces of equipment were placed on the linear continuum according to their equipment preference measures (separation = 3.21; reliability =.91) derived from the participants' response patterns to the items (separation = 1.43; reliability =.67). Although the MNSQ infit and outfit statistics were acceptable for each facet, the items did not target the equipment very well. Suggested changes to the instrument include converting questions to statements to use with Likert response categories; converting negative wording to positive phrasing, and adding items related to seat comfort, foot pedal placement, and visibility of display panel. The Nu-Step and Schwinn were the most preferred pieces of equipment while the Stairmaster was the least preferred. This preliminary investigation illustrates how useful information can be obtained from a many-facet Rasch analysis to guide instrument revision and better understand exercise equipment preferences among a frail older population.
Marilyn A Looney; James H Rimmer
Publication Detail:
Type:  Evaluation Studies; Journal Article    
Journal Detail:
Title:  Journal of applied measurement     Volume:  4     ISSN:  1529-7713     ISO Abbreviation:  J Appl Meas     Publication Date:  2003  
Date Detail:
Created Date:  2003-04-17     Completed Date:  2003-05-06     Revised Date:  2007-11-15    
Medline Journal Info:
Nlm Unique ID:  101084377     Medline TA:  J Appl Meas     Country:  United States    
Other Details:
Languages:  eng     Pagination:  43-58     Citation Subset:  IM    
Department of Kinesiology and Physical Education, Northern Illinois University, DeKalb, IL 60115, USA.
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MeSH Terms
Aged, 80 and over
Equipment Design
Frail Elderly*
Interviews as Topic
Physical Fitness
Reproducibility of Results

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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