25" W x 23-3/4" D x 37-3/4" H 17" H to 20" H 17-3/4" W x 18" D 15-1/2" W x 21-1/2" H The Circulation Task Chair marries style and comfort in a unique, modern package. The injection-molded polypropylene contoured seat and back provides back support and ventilation. Seat height is adjustable and is ideal for school computer rooms, labs or office use. Optional arms are available. Injection-molded polypropylene contoured seat and back Ventilation holes allowing body to breathe Seat has 16° slope to provide natural support Adjustable height of 17" to 20"H 5-star base with 2" casters Black seat and back color only Please add 2-5 business days for transit time Optional Set Of Arms For Circulation Seating See all Balt Furniture Products We ship factory direct and can only estimate the length of time that it will take for your item to ship out. The normal ship-time before each item leaves the factory is indicated in the blue box.

Quick Ship options, such as select color choices, are available on some items and those options and their ship times will be listed in a red box above the normal ship time. If you do not see a red box, then there are no Quick Ship options for that item. You may have multiple shipments to complete your order as each item has varying lead times and may be shipping from multiple factories. Summer months (June through September) are especially busy due to the back-to-school season. Please expect that the listed ship times may be extended and plan ahead. Contact us if you are concerned about your deadline and our team will confirm product availability with the factory and/or suggest a faster solution. We do our best to provide accurate ship times, but we cannot guarantee any delivery date. See our Quick Ship section for items that we trust to have the fastest ship times, some even as fast as 24 Hours!If you're reading this article sitting down—the position we all hold more than any other, for an average of 8.9 hours a day—stop and take stock of how your body feels.

Is there an ache in your lower back? A light numbness in your rear and lower thigh? Are you feeling a little down? These symptoms are all normal, and they're not good. high back chairs bangaloreThey may well be caused by doing precisely what you're doing—sitting. hanging egg chair online indiaNew research in the diverse fields of epidemiology, molecular biology, biomechanics, and physiology is converging toward a startling conclusion: Sitting is a public-health risk. folding chairs for counter height tableAnd exercising doesn't offset it. bloom high chair australia"People need to understand that the qualitative mechanisms of sitting are completely different from walking or exercising," says University of Missouri microbiologist Marc Hamilton. navy accent chair target

"Sitting too much is not the same as exercising too little. They do completely different things to the body." In a 2005 article in magazine, James A. Levine, an obesity specialist at the Mayo Clinic, pinpointed why, despite similar diets, some people are fat and others aren't. tables and chairs for rent brooklyn"We found that people with obesity have a natural predisposition to be attracted to the chair, and that's true even after obese people lose weight," he says. buy teak dining chairs"What fascinates me is that humans evolved over 1.5 million years entirely on the ability to walk and move. cheap inflatable pool chairsAnd literally 150 years ago, 90% of human endeavor was still agricultural. best prices on hickory chair furniture

In a tiny speck of time we've become chair-sentenced," Levine says. Hamilton, like many sitting researchers, doesn't own an office chair. "If you're standing around and puttering, you recruit specialized muscles designed for postural support that never tire," he says. "They're unique in that the nervous system recruits them for low-intensity activity and they're very rich in enzymes." One enzyme, lipoprotein lipase, grabs fat and cholesterol from the blood, burning the fat into energy while shifting the cholesterol from LDL (the bad kind) to HDL (the healthy kind). When you sit, the muscles are relaxed, and enzyme activity drops by 90% to 95%, leaving fat to camp out in the bloodstream. Within a couple hours of sitting, healthy cholesterol plummets by 20%. The data back him up. Older people who move around have half the mortality rate of their peers. Frequent TV and Web surfers (sitters) have higher rates of hypertension, obesity, high blood triglycerides, low HDL cholesterol, and high blood sugar, regardless of weight.

Lean people, on average, stand for two hours longer than their counterparts. The chair you're sitting in now is likely contributing to the problem. "Short of sitting on a spike, you can't do much worse than a standard office chair," says Galen Cranz, a professor at the University of California at Berkeley. She explains that the spine wasn't meant to stay for long periods in a seated position. Generally speaking, the slight S shape of the spine serves us well. "If you think about a heavy weight on a C or S, which is going to collapse more easily? The C," she says. But when you sit, the lower lumbar curve collapses, turning the spine's natural S-shape into a C, hampering the abdominal and back musculature that support the body. The body is left to slouch, and the lateral and oblique muscles grow weak and unable to support it. This, in turn, causes problems with other parts of the body. "When you're standing, you're bearing weight through the hips, knees, and ankles," says Dr. Andrew C, Hecht, co-chief of spinal surgery at Mount Sinai Medical Center.

"When you're sitting, you're bearing all that weight through the pelvis and spine, and it puts the highest pressure on your back discs. Looking at MRIs, even sitting with perfect posture causes serious pressure on your back." Much of the perception about what makes for healthy and comfortable sitting has come from the chair industry, which in the 1960s and '70s started to address widespread complaints of back pain from workers. A chief cause of the problem, companies publicized, was a lack of lumbar support. But lumbar support doesn't actually help your spine. "You cannot design your way around this problem," says Cranz. "But the idea of lumbar support has become so embedded in people's conception of comfort, not their actual experience on chairs. We are, in a sense, locked into it." In the past three decades the U.S. swivel chair has tripled into a more than $3 billion market served by more than 100 companies. Unsurprisingly, America's best-selling chair has made a fetish of lumbar support.

The basic Aeron, by Herman Miller, costs around $700, and many office workers swear by them. There are also researchers who doubt them. "The Aeron is far too low," says Dr. A.C. Mandal, a Danish doctor who was among the first to raise flags about sitting 50 years ago. "I visited Herman Miller a few years ago, and they did understand. It should have much more height adjustment, and you should be able to move more. But as long as they sell enormous numbers, they don't want to change it." Don Chadwick, the co-designer of the Aeron, says he wasn't hired to design the ideal product for an eight-hour-workday; he was hired to update Herman Miller's previous best-seller. "We were given a brief and basically told to design the next-generation office chair," he says. The best sitting alternative is perching—a half-standing position at barstool height that keeps weight on the legs and leaves the S-curve intact. Chair alternatives include the Swopper, a hybrid stool seat and the funky, high HAG Capisco chair.