Effects of intermittent physical activity on fat utilization over a whole day

Takafumi Ando, Chiyoko Usui, Kazunori Ohkawara, Rieko Miyake, Masashi Miyashita, Jonghoon Park, Osamu Ezaki, Mitsuru Higuchi, Shigeho Tanaka

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

PURPOSE: We examined whether continuous and intermittent physical activity (PA) differentially influence fat utilization. METHODS: This was a randomized crossover study. Nine healthy young male participants performed two 39-h (two nights, three days) PA sessions (continuous and intermittent exercise) in a respiratory chamber to measure energy expenditure (EE) and substrate oxidation. Participants used a stationary cycling ergometer continuously for 40 min and then 45 min in the continuous PA trial and for 5 min every 30 min 17 times in the intermittent PA trial. They consumed high-carbohydrate meals corresponding to predicted daily total EE for 3 d before entering the respiratory chamber and four high-fat meals corresponding to predicted total EE in the chamber. RESULTS: Twenty-three-hour RER adjusted for sleeping RER on the preceding day was significantly lower in the intermittent PA trial than that in the continuous PA trial (P = 0.021). Twenty-three-hour RER adjusted for sleeping RER on the preceding day was correlated with accumulated consecutive minutes of METs ≤1.5 (3 min or more, r = 0.477; 5 min or more, r = 0.510; 10 min or more, r = 0.605). CONCLUSIONS: The intermittent PA trial induced greater fat utilization than the continuous PA trial. The present study, therefore, suggests that intermittent PA has a beneficial effect on 24-h fat oxidation after consumption of a high-fat meal, which may help prevent weight gain over time.

Original languageEnglish
Pages (from-to)1410-1418
Number of pages9
JournalMedicine and Science in Sports and Exercise
Volume45
Issue number7
DOIs
Publication statusPublished - 2013 Jul
Externally publishedYes

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Fats
Energy Metabolism
Meals
Cross-Over Studies
Weight Gain
Carbohydrates

Keywords

  • fat adaptation
  • Human calorimeter
  • prolonged sedentary behavior
  • triaxial accelerometer

ASJC Scopus subject areas

  • Orthopedics and Sports Medicine
  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Effects of intermittent physical activity on fat utilization over a whole day. / Ando, Takafumi; Usui, Chiyoko; Ohkawara, Kazunori; Miyake, Rieko; Miyashita, Masashi; Park, Jonghoon; Ezaki, Osamu; Higuchi, Mitsuru; Tanaka, Shigeho.

In: Medicine and Science in Sports and Exercise, Vol. 45, No. 7, 07.2013, p. 1410-1418.

Research output: Contribution to journalArticle

Ando, Takafumi ; Usui, Chiyoko ; Ohkawara, Kazunori ; Miyake, Rieko ; Miyashita, Masashi ; Park, Jonghoon ; Ezaki, Osamu ; Higuchi, Mitsuru ; Tanaka, Shigeho. / Effects of intermittent physical activity on fat utilization over a whole day. In: Medicine and Science in Sports and Exercise. 2013 ; Vol. 45, No. 7. pp. 1410-1418.
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AB - PURPOSE: We examined whether continuous and intermittent physical activity (PA) differentially influence fat utilization. METHODS: This was a randomized crossover study. Nine healthy young male participants performed two 39-h (two nights, three days) PA sessions (continuous and intermittent exercise) in a respiratory chamber to measure energy expenditure (EE) and substrate oxidation. Participants used a stationary cycling ergometer continuously for 40 min and then 45 min in the continuous PA trial and for 5 min every 30 min 17 times in the intermittent PA trial. They consumed high-carbohydrate meals corresponding to predicted daily total EE for 3 d before entering the respiratory chamber and four high-fat meals corresponding to predicted total EE in the chamber. RESULTS: Twenty-three-hour RER adjusted for sleeping RER on the preceding day was significantly lower in the intermittent PA trial than that in the continuous PA trial (P = 0.021). Twenty-three-hour RER adjusted for sleeping RER on the preceding day was correlated with accumulated consecutive minutes of METs ≤1.5 (3 min or more, r = 0.477; 5 min or more, r = 0.510; 10 min or more, r = 0.605). CONCLUSIONS: The intermittent PA trial induced greater fat utilization than the continuous PA trial. The present study, therefore, suggests that intermittent PA has a beneficial effect on 24-h fat oxidation after consumption of a high-fat meal, which may help prevent weight gain over time.

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