Key result
Physical activity ≥1000 Kcal/week is linked to ~28% lower 10-year CAD risk in older women.
Why the study?
Does physical activity energy expenditure ≥1000 Kcal/week improve coronary artery disease risk factors in older female adults?
Cross-Sectional (n=66)
No
Does physical activity energy expenditure ≥1000 Kcal/week improve coronary artery disease risk factors in older female adults?
Mean Difference: -3.11
Absolute Event Rate: 7.8% vs 10.9%
p-value: p=0.01
Achieving a physical activity energy expenditure of ≥1000 Kcal/week is associated with improved cardiovascular risk profiles in older women.
Supports ≥1000 kcal/week activity targets in older women; cross-sectional data leave causal effects on CAD risk open for prospective confirmation.
Objectives: We tried to confirm physical activity of 1,000 Kcal per week was a meaningful point in controlling coronary artery disease risks in female older adults. Methods: Participants were 66 female older adults recruited from senior welfare center. Participants were provided with accelerometer (e-step, Kenz, Japan) for measuring daily energy expenditure. Graded exercise test was done for measuring aerobic fitness. Blood glucose and lipid were analyzed. Framingham risk score was calculated based on blood glucose, blood lipid, and smoking. These variables were compared between the group expended more than 1,000 Kcal/week and the group with energy expenditure below 1,000 Kcal/week. Results: The group expended over 1,000kcal/week showed to be superior to the counterpart group in following variables; AC(Abdominal Circumference), %BF, <TEX>HRᵣₑₛₜ</TEX>(resting heart rate), <TEX>VO₂ₚₑₐₖ</TEX>, FBG, LDL-C, TG, BDI-II, QOL, AR(Absolute Risk), RR(Relative Risk). Conclusions: The group expended over 1,000 Kcal/week was likely to have less probability in CAD than group expended less than 1,000 Kcal/week. The result of this study suggests the important role of active daily life that can be replaced with that of regular exercise especially for those who are not available to do structured exercise.
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Kee-Chan Joo (2015) conducted a cross-sectional in Older female adults without history of cardiovascular or metabolic disease (n=66). Physical activity energy expenditure ≥1000 Kcal/week vs. Physical activity energy expenditure <1000 Kcal/week was evaluated on Framingham Absolute Risk of CAD probability in 10 years (Mean difference -3.11, p=0.01). Older female adults expending ≥1000 Kcal/week in physical activity had a significantly lower 10-year absolute risk of coronary artery disease compared to those expending <1000 Kcal/week (7.8% vs 10.9%, p=0.01).
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