Long-term effects of varying intensities and formats of physical activity on participation rates, fitness, and lipoproteins in men and women aged 50 to 65 years

Abby C. King, William L. Haskell, Deborah R. Young, Roberta K. Oka, Marcia L. Stefanick

Research output: Contribution to journalArticle

Abstract

Background: Although exercise parameters such as intensity and format have been shown to influence exercise participation rates and physiological outcomes in the short term, few data are available evaluating their longer- term effects. The study objective was to determine the 2-year effects of differing intensities and formats of endurance exercise on exercise participation rates, fitness, and plasma HDL cholesterol levels among healthy older adults. Methods and Results: Higher-intensity, group-based exercise training; higher-intensity, home-based exercise; and lower-intensity, home- based exercise were compared in a 2-year randomized trial. Participants were 149 men and 120 postmenopausal women 50 to 65 years of age who were sedentary and free of cardiovascular disease. Recruitment was achieved through a random digit-dial community telephone survey and media promotion. All exercise occurred in community settings. For higher-intensity exercise training, three 40-minute endurance training sessions per week were prescribed at 73% to 88% of peak treadmill heart rate. For lower-intensity exercise, five 30-minute endurance training sessions per week were prescribed at 60% to 73% of peak treadmill heart rate. Treadmill exercise performance, lipoprotein levels and other heart disease risk factors, and exercise adherence were evaluated at baseline and across the 2-year period. Treadmill exercise test performance improved for all three training conditions during year 1 and was successfully maintained during year 2, particularly for subjects in the higher-intensity, home-based condition. Subjects in that condition also showed the greatest year 2 exercise adherence rates (P

Original languageEnglish (US)
Pages (from-to)2596-2604
Number of pages9
JournalCirculation
Volume91
Issue number10
StatePublished - May 15 1995
Externally publishedYes

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Lipoproteins
Exercise
Exercise Test
Heart Rate
Telephone
HDL Cholesterol
Heart Diseases
Cardiovascular Diseases

Keywords

  • aging
  • cholesterol
  • exercise
  • lipoproteins
  • risk factors

ASJC Scopus subject areas

  • Physiology
  • Cardiology and Cardiovascular Medicine

Cite this

Long-term effects of varying intensities and formats of physical activity on participation rates, fitness, and lipoproteins in men and women aged 50 to 65 years. / King, Abby C.; Haskell, William L.; Young, Deborah R.; Oka, Roberta K.; Stefanick, Marcia L.

In: Circulation, Vol. 91, No. 10, 15.05.1995, p. 2596-2604.

Research output: Contribution to journalArticle

King, Abby C. ; Haskell, William L. ; Young, Deborah R. ; Oka, Roberta K. ; Stefanick, Marcia L. / Long-term effects of varying intensities and formats of physical activity on participation rates, fitness, and lipoproteins in men and women aged 50 to 65 years. In: Circulation. 1995 ; Vol. 91, No. 10. pp. 2596-2604.
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