There's a lot of false information about the proper posture you need to use when sitting at a desk. Cornell University ergonomics professor Dr. Alan Hedge sets out why the 90Ëš rule does more ...
So your hips will be hinged at about a ninety degree angle. You can hold that position ... work to relieve back pain associated with sitting at your desk for long periods of time.
Results that may be inaccessible to you are currently showing.
Hide inaccessible results
Feedback