title: Age and androgen-deprivation therapy on exercise outcomes in men with prostate cancer.
abstract: OBJECTIVE
  The purpose of this study is to examine the effects of age (≤ 65 years or >65 years) and androgen-deprivation therapy (ADT, presence or absence) as factors that may predict changes in body composition and fitness following a 24-week exercise program in prostate cancer patients.
  
  
  METHODS
  One hundred twenty-one men were randomly allocated to either: (1) aerobic exercise (AE), (2) resistance exercise (RE), or (3) usual care (UC). Body composition was assessed by DXA. Aerobic fitness was assessed through a maximal treadmill test. Muscular strength was assessed by leg extension and bench press using the eight-repetition maximum test. Responses were compared between younger (≤ 65 years) and older (> 65 years) patients with or without ADT.
  
  
  RESULTS
  There did not appear to be an interaction between age and ADT on body composition or fitness, nor were there any significant changes in body composition for participants ≤ 65 years. In participants aged >65 years, lean mass decreased in AE (p = 0.013) and UC (p = 0.006), but was preserved in RE. In participants receiving ADT, there was a decrease in lean mass in AE (p = 0.003) and UC (p < 0.001) but not in RE. The non-ADT group did not show any changes in body composition but did show improvements in muscular fitness following resistance training (p < 0.001).
  
  
  CONCLUSIONS
  Changes in body composition and physical fitness following a 24-week exercise program in men with prostate cancer are not influenced by age and/or ADT. Resistance training appears to attenuate the age-related decrease in lean mass and increase in body fat in older patients with prostate cancer and those receiving ADT.
authors.affiliation: Human and Environmental Physiology Research Unit, School of Human Kinetics, University of Ottawa, Ottawa, ON, K1N 6N5, Canada.
authors.forename: Angela S
authors.initials: AS
authors.lastname: Alberga
authors.forename: Roanne J
authors.initials: RJ
authors.lastname: Segal
authors.forename: Robert D
authors.initials: RD
authors.lastname: Reid
authors.forename: Chris G
authors.initials: CG
authors.lastname: Scott
authors.forename: Ronald J
authors.initials: RJ
authors.lastname: Sigal
authors.forename: Farah
authors.initials: F
authors.lastname: Khandwala
authors.forename: James
authors.initials: J
authors.lastname: Jaffey
authors.forename: George A
authors.initials: GA
authors.lastname: Wells
authors.forename: Glen P
authors.initials: GP
authors.lastname: Kenny
mesh_terms: D015502:Absorptiometry, Photon; D000367:Age Factors; D000368:Aged; D000726:Androgen Antagonists / Q000627:therapeutic use*; D001823:Body Composition / Q000502:physiology; D005080:Exercise Test; D005081:Exercise Therapy / Q000379:methods*; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D053580:Muscle Strength / Q000502:physiology; D010809:Physical Fitness / Q000502:physiology; D011446:Prospective Studies; D011471:Prostatic Neoplasms / Q000188:drug therapy* / Q000534:rehabilitation; D055070:Resistance Training / Q000379:methods*
chemical_list: D000726:Androgen Antagonists