Different Patterns of Walking and Postprandial Triglycerides in Older Women

Kyoko Kashiwabara, Tetsuhiro Kidokoro, Takuma Yanaoka, Stephen F. Burns, David J. Stensel, Masashi Miyashita

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Purpose: Although a single bout of continuous exercise (Q30 min) reduces postprandial triglyceride (TG), little evidence is available regarding the effect of multiple short (e10 min) bouts of exercise on postprandial TG in individuals at increased risk for cardiovascular diseases. This study compared the effects of different patterns of walking on postprandial TG in postmenopausal, older women with hypertriglyceridemia. Methods: Twelve inactive women (mean age T SD, 71 T 5 yr) with hypertriglyceridemia (fasting TG Q1.70 mmolILj1) completed three, 1-d laboratory-based trials in a random order: 1) control, 2) continuous walking, and 3) multiple short bouts of walking. On the control trial, participants sat in a chair for 8 h. For the walking trials, participants walked briskly in either one 30-min bout in the morning (0900-0930 h) or twenty 90-s bouts over 8 h. Except for walking, both exercise trials mimicked the control trial. In each trial, participants consumed a standardized breakfast (0800 h) and lunch (1100 h). Venous blood samples were collected in the fasted state and at 2, 4, 6, and 8 h after breakfast. Results: The serum TG incremental area under the curve was 35% and 33% lower on the continuous and multiple short bouts of walking trials than that on the control trial (8.2 T 3.1 vs 8.5 T 5.4 vs 12.7 T 5.8 mmol per 8 hILj1, respectively; main effect of trial: effect size = 0.459, P = 0.001). Conclusions: Accumulating walking in short bouts limits postprandial TG in at-risk, inactive older women with fasting hypertriglyceridemia.

Original languageEnglish
Pages (from-to)79-87
Number of pages9
JournalMedicine and Science in Sports and Exercise
Volume50
Issue number1
DOIs
Publication statusPublished - 2018 Jan 1

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Walking
Triglycerides
Hypertriglyceridemia
Breakfast
Exercise
Fasting
Lunch
Area Under Curve
Cardiovascular Diseases
Serum

Keywords

  • HYPERTRIGLYCERIDEMIA
  • OLDER ADULTS
  • POSTMENOPAUSAL WOMEN
  • POSTPRANDIAL TRIGLYCERIDE
  • WALKING

ASJC Scopus subject areas

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

Cite this

Different Patterns of Walking and Postprandial Triglycerides in Older Women. / Kashiwabara, Kyoko; Kidokoro, Tetsuhiro; Yanaoka, Takuma; Burns, Stephen F.; Stensel, David J.; Miyashita, Masashi.

In: Medicine and Science in Sports and Exercise, Vol. 50, No. 1, 01.01.2018, p. 79-87.

Research output: Contribution to journalArticle

Kashiwabara, Kyoko ; Kidokoro, Tetsuhiro ; Yanaoka, Takuma ; Burns, Stephen F. ; Stensel, David J. ; Miyashita, Masashi. / Different Patterns of Walking and Postprandial Triglycerides in Older Women. In: Medicine and Science in Sports and Exercise. 2018 ; Vol. 50, No. 1. pp. 79-87.
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AB - Purpose: Although a single bout of continuous exercise (Q30 min) reduces postprandial triglyceride (TG), little evidence is available regarding the effect of multiple short (e10 min) bouts of exercise on postprandial TG in individuals at increased risk for cardiovascular diseases. This study compared the effects of different patterns of walking on postprandial TG in postmenopausal, older women with hypertriglyceridemia. Methods: Twelve inactive women (mean age T SD, 71 T 5 yr) with hypertriglyceridemia (fasting TG Q1.70 mmolILj1) completed three, 1-d laboratory-based trials in a random order: 1) control, 2) continuous walking, and 3) multiple short bouts of walking. On the control trial, participants sat in a chair for 8 h. For the walking trials, participants walked briskly in either one 30-min bout in the morning (0900-0930 h) or twenty 90-s bouts over 8 h. Except for walking, both exercise trials mimicked the control trial. In each trial, participants consumed a standardized breakfast (0800 h) and lunch (1100 h). Venous blood samples were collected in the fasted state and at 2, 4, 6, and 8 h after breakfast. Results: The serum TG incremental area under the curve was 35% and 33% lower on the continuous and multiple short bouts of walking trials than that on the control trial (8.2 T 3.1 vs 8.5 T 5.4 vs 12.7 T 5.8 mmol per 8 hILj1, respectively; main effect of trial: effect size = 0.459, P = 0.001). Conclusions: Accumulating walking in short bouts limits postprandial TG in at-risk, inactive older women with fasting hypertriglyceridemia.

KW - HYPERTRIGLYCERIDEMIA

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KW - POSTMENOPAUSAL WOMEN

KW - POSTPRANDIAL TRIGLYCERIDE

KW - WALKING

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