The effect of an incremental increase in exercise on appetite, eating behaviour and energy balance in lean men and women feeding ad libitum

Stephen Whybrow, Darren Hughes, Patrick Ritz, Alexandra Johnstone, Graham W Horgan, Neil King, John E. Blundell, R. James Stubbs

Research output: Contribution to journalArticle

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Abstract

The effects of incremental exercise on appetite, energy intake (EI), expenditure (EE) and balance (EB) in lean men and women were examined. Six men (age 29.7 (SD 5.9) years, weight 75.2 (SD 15.3) kg, height 1.75 (So 0.11) m) and six women (age 24.7 (SD 5.9) years. weight 66.7 (So 9.10) kg, height 1.70 (SD 0.09) m) were each studied three times during a 16d protocol, corresponding to no additional exercise (Nex), moderate-intensity exercise (Mex; 1.5-2.0 MJ/d) and high-intensity exercise (Hex; 3.0-4.0 MJ/d) regimens. Subjects were fed to EB during days 1-2, and during days 3-16 they fed ad libitum from a medium-fat diet of constant composition. Daily EE, assessed using the doubly labelled water method, was 9.2, 11.6 and 13.7 MJ/d (P<0.001; SED 0.45) for the women and 12.2, 14.0 and 16.7 MJ/d (P=0.007; SED 1.11) for the men on the Nex, Mex and Hex treatments, respectively. El was 8.3, 8.6 and 9.9 MJ/d (P = 0.118; SED 0.72) for the women and 10.6, 11.6 and 12.0 MJ/d (P=0.031; SED 0.47) for the men, respectively. On average, subjects compensated for about 30% of the exercise-induced energy deficit. However, the degree of compensation varied considerably among individuals. The present study captured the initial compensation in El for exercise-induced energy deficits. Total compensation would take a matter of weeks.

Original languageEnglish
Pages (from-to)1109-1115
Number of pages7
JournalBritish Journal of Nutrition
Volume100
Issue number5
Early online date1 Apr 2008
DOIs
Publication statusPublished - Nov 2008

Keywords

  • exercise
  • appetite
  • energy balance
  • feeding behaviour
  • human studies
  • fat-free mass
  • physical-activity
  • body-composition
  • food-intake
  • diet composition
  • obese women
  • expenditure
  • weight
  • questionnaire
  • program

Cite this

The effect of an incremental increase in exercise on appetite, eating behaviour and energy balance in lean men and women feeding ad libitum. / Whybrow, Stephen; Hughes, Darren; Ritz, Patrick; Johnstone, Alexandra; Horgan, Graham W; King, Neil; Blundell, John E.; Stubbs, R. James.

In: British Journal of Nutrition, Vol. 100, No. 5, 11.2008, p. 1109-1115.

Research output: Contribution to journalArticle

Whybrow, Stephen ; Hughes, Darren ; Ritz, Patrick ; Johnstone, Alexandra ; Horgan, Graham W ; King, Neil ; Blundell, John E. ; Stubbs, R. James. / The effect of an incremental increase in exercise on appetite, eating behaviour and energy balance in lean men and women feeding ad libitum. In: British Journal of Nutrition. 2008 ; Vol. 100, No. 5. pp. 1109-1115.
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AU - Blundell, John E.

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AB - The effects of incremental exercise on appetite, energy intake (EI), expenditure (EE) and balance (EB) in lean men and women were examined. Six men (age 29.7 (SD 5.9) years, weight 75.2 (SD 15.3) kg, height 1.75 (So 0.11) m) and six women (age 24.7 (SD 5.9) years. weight 66.7 (So 9.10) kg, height 1.70 (SD 0.09) m) were each studied three times during a 16d protocol, corresponding to no additional exercise (Nex), moderate-intensity exercise (Mex; 1.5-2.0 MJ/d) and high-intensity exercise (Hex; 3.0-4.0 MJ/d) regimens. Subjects were fed to EB during days 1-2, and during days 3-16 they fed ad libitum from a medium-fat diet of constant composition. Daily EE, assessed using the doubly labelled water method, was 9.2, 11.6 and 13.7 MJ/d (P<0.001; SED 0.45) for the women and 12.2, 14.0 and 16.7 MJ/d (P=0.007; SED 1.11) for the men on the Nex, Mex and Hex treatments, respectively. El was 8.3, 8.6 and 9.9 MJ/d (P = 0.118; SED 0.72) for the women and 10.6, 11.6 and 12.0 MJ/d (P=0.031; SED 0.47) for the men, respectively. On average, subjects compensated for about 30% of the exercise-induced energy deficit. However, the degree of compensation varied considerably among individuals. The present study captured the initial compensation in El for exercise-induced energy deficits. Total compensation would take a matter of weeks.

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KW - fat-free mass

KW - physical-activity

KW - body-composition

KW - food-intake

KW - diet composition

KW - obese women

KW - expenditure

KW - weight

KW - questionnaire

KW - program

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