title: Exercise engagement is differentially motivated by age-dependent factors.
abstract: OBJECTIVE
  To examine exercise engagement motives from adolescence throughout the adult life span using the Exercise Motivation Inventory 2 questionnaire.
  
  
  METHODS
  Two hundred fifty-five (255) participants, 13 - 84 years and equally representing both genders, were grouped by age and sex.
  
  
  RESULTS
  An age-dependent engagement in voluntary exercise was observed. Young adults engage in exercise based on interpersonal motives, whereas exercise engagement in middle age is associated with body-related motives and psychological motives. Health motives influence exercise engagement beyond middle age whereas fitness motives underpin exercise engagement throughout the life span beyond childhood.
  
  
  CONCLUSIONS
  Data indicate age-dependent motivational factors for exercise engagement that may hold important implications for exercise adherence and engagement strategies.
authors.affiliation: Auburn University, Department of Kinesiology, Cardioprotection Laboratory, Auburn, AL, USA.
authors.forename: John C
authors.initials: JC
authors.lastname: Quindry
authors.forename: David
authors.initials: D
authors.lastname: Yount
authors.forename: Harold
authors.initials: H
authors.lastname: O'Bryant
authors.forename: Mary E
authors.initials: ME
authors.lastname: Rudisill
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000367:Age Factors; D000368:Aged; D000369:Aged, 80 and over; D000375:Aging / Q000502:physiology / Q000523:psychology*; D001294:Attitude to Health; D015444:Exercise / Q000523:psychology*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009042:Motivation; D010809:Physical Fitness / Q000523:psychology; D012737:Sex Factors; D012959:Socioeconomic Factors; D011795:Surveys and Questionnaires; D055815:Young Adult