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Breaking Up Prolonged Sitting Benefits Postmenopausal Women

Reductions in postprandial glucose, insulin, NEFA responses for overweight/obese women

Breaking Up Prolonged Sitting Benefits Postmenopausal Women

MONDAY, Dec. 7, 2015 (HealthDay News) -- Breaking up prolonged sitting with standing or walking improves postprandial markers of cardiometabolic health in overweight/obese, dysglycemic, postmenopausal women, according to a study published online Dec. 1 in Diabetes Care.

Joseph Henson, from the University of Leicester in the United Kingdom, and colleagues randomized 22 overweight/obese, dysglycemic, postmenopausal women to either prolonged, unbroken sitting (7.5 hours) or prolonged sitting broken up with either standing or walking at light intensity (for five minutes every 30 minutes); allocation and treatment order were randomized. All participants underwent the 7.5-hour sitting protocol the following day.

The researchers found that both standing and walking significantly reduced the glucose incremental area under the curve compared with a prolonged bout of sitting (both P < 0.05). Insulin was also reduced for both activity conditions compared with prolonged sitting (both P < 0.05). Compared with prolonged sitting, both standing and walking attenuated nonesterified fatty acid suppression (both P < 0.05). No significant effect was seen on triglyceride incremental area under the curve. The impact on glucose (walking and standing) and insulin (walking only) lasted into the following day.

"This simple, behavioral approach could inform future public health interventions aimed at improving the metabolic profile of postmenopausal, dysglycemic women," the authors write.

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