When we sit, levels of an enzyme called lipoprotein lipase in our leg muscles drop drastically. That enzyme pulls fat (triglycerides) out of our blood so that our body can use it for fuel. If lipoprotein lipase isn't pulling out enough triglycerides, then their level in our blood zooms up, increasing our risk for heart disease.1
Lots of sitting also increases the level of glucose, a type of sugar that our bodies use as an energy source, in our blood and makes our body resistant to our own natural insulin. That means our body has to work harder to get glucose into our cells, which sets us up for type 2 diabetes.2,3 Researcher and exercise physiologist Travis Saunders wrote, "In other words, an afternoon on the couch makes you measurably closer to having type 2 diabetes,"2 but he could just as well have been talking about the effects of spending an afternoon sitting at our work desk.
One of the methods for getting moving more frequently that I suggest in my column is to use a sit–stand desk,4 a standing desk, or treadmill desk, and alternate throughout the day between sitting and standing or between sitting and very slow walking. You can buy desks and equipment to do this, or you can put together your own setup. Here are links to vendors of desks and stands, plus links to articles and blogs posts on do-it-yourself arrangements:
- Adjustable-height desks from BeyondTheOfficeDoor.com
- Adjustable-height desks from Ergo Depot
- Adjustable-height desks from Ergo Desktop
- Adjustable-height desks from GeekDesk
- Computer-monitor arms and adjustable-height desks from Ergotron
- Laptop stands from AirDesk
- Monitor risers and keyboard risers from Staand Up Desk
- Sigma Sit-Stand Desk from Dane Decor
- Sit–stand workstation from Balt
- Standing desks from UpDesk
- Treadmill desk from TrekDesk
- Treadmill desk from Walkstation
- WorkEZ ergonomic stands from Uncaged Ergonomics
- WorkEZ ergonomic stands from Uncaged Ergonomics
1Kravitz L. Too much sitting is hazardous to your health? [monograph on the Internet]. Available from: http://www.unm.edu/~lkravitz/Article%20folder/sittingUNM.html.
2Saunders T. Sitting for just a couple hours has measurable (and negative) health impact. Obesity Panacea 2012 April 4. Available from: http://blogs.plos.org/obesitypanacea/2012/04/04/sitting-for-just-a-couple-hours-has-measurable-and-negative-health-impact/.
3Saunders TJ, Larouche R., Colley RC, Tremblay MS. Acute sedentary behaviour and markers of cardiometabolic risk: a systematic review of intervention studies. Journal of Nutrition and Metabolism 2012;2012:712435. doi:10.1155/2012/712435. Available from: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3382951/.
4O'Moore-Klopf K. Why I'm a convert to standing at work. EditorMom 2012 June 1. Available from: http://editor-mom.blogspot.com/2012/06/why-im-convert-to-standing-at-work.html.
sit–stand desk standing desk health diabetes EditorMom
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