Effect of increased physical activities of daily living on postprandial triacylglycerol concentrations in postmenopausal women

Kanako Edamoto, Hyun Hun Jung, Tetsuhiro Kidokoro, Takuma Yanaoka, Kyoko Kashiwabara, Masaki Takahashi, Masashi Miyashita

Research output: Contribution to journalArticle

Abstract

Limited evidence was available to support the effect of self-selected activities performed under free-living conditions on postprandial lipaemia, particularly for older adults. Thus, the aim of the present study was to examine the chronic effect of increased physical activity of daily living on postprandial triacylglycerol (TAG) in postmenopausal women. Twentyeight postmenopausal women, aged 71 ± 4 years (mean ± SD), were randomly divided into two groups: active (n=14) and control (n=14) groups. The participants in the active group were asked to increase their activities above their usual lifestyle levels for 4 weeks; freely deciding the duration and intensity of their chosen activities. The participants in the control group maintained their usual lifestyle for 4 weeks. All participants were asked to wear a uniaxial accelerometer for 4 consecutive weeks. At baseline and after 4 weeks, all participants rested and consumed a standardised breakfast and lunch after a 24-h period of physical activity avoidance. Blood samples were collected in the fasted state (0 h) and at 2, 4 and 6 h after breakfast. After 4 weeks, the participants in the active group increased their step counts by 600 steps/day (from 6979 ± 2057 to 7586 ± 2301 steps/day, p=0.047). There was no difference in the pattern of postprandial TAG response between groups (trial × time interaction, p=0.335). A previous study has suggested that only recent exercise (i.e., 12h before but not 24 h before) appears to facilitate the exercise-induced postprandial TAG lowering effects. Thus, in the present study, postprandial lipaemia was not reduced after performing self-selected activities under free-living in postmenopausal women.

Original languageEnglish
Pages (from-to)485-492
Number of pages8
Journaljapanese journal of physical fitness and sports medicine
Volume64
Issue number5
DOIs
Publication statusPublished - 2015 Jan 1

Keywords

  • Activities of daily living
  • Postmenopausal women
  • Postprandial period
  • Triacylglycerol

ASJC Scopus subject areas

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

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