Stand Up Desk your energy expenditure increases significantly

A Stand Up Desk is a height adjustable desk that allows the user to alternate between sitting and standing. This is a great way to reduce back pain, improve posture and boost your productivity.
How It Works
Almost all of these modern desks have one or more motors that allow you to lift and lower your desk at the touch of a button. Some even have height memory so you don't have to manually adjust your standing desk each time you switch positions.

Benefits Of A Standing Desk
Not only do you save yourself from bad posture associated with prolonged sitting, but you also eliminate tight hips that can cause knee and lower back pain. In addition, if you're able to spend a few hours a day standing up, it's a great way to get some much-needed physical activity into your day.
It's important to remember that standing isn't always an option when you're in the middle of a task, so it's a good idea to take short breaks from your work every now and then and walk around the office. This is especially true if you're working on a project that requires a lot of manual work.
Weight Loss and Productivity

Because standing consumes more calories than sitting, you'll find that your energy expenditure increases significantly when you're standing for extended periods of time. This is a direct result of the extra work your muscles are doing to stabilize your posture and keep you in a comfortable position.