First, check the position of your feet. As previously mentioned, they need to be flat on the floor. Avoid resting them underneath the chair on the chair feet.
If you have adjusted your chair height as recommended above and you can’t place your feet flat on the floor, you will require a footrest. If your chair is too high you will find your feet do not touch the ground. This is a common problem in people with a shorter stature.
If you do not currently have an ergonomic chair - you can have a browse at our collection here - an ergonomic chair is the greatest achievement to an ergonomic workstation and will set you up for a great working experience.
Your footrest should be large enough for both of your feet to rest on it and if the budget permits, select one that offers a tilt mechanism so you can alternate your ankle-joint angles as required. The tilt mechanism will help to increase your feet movement. Changing the joint angles in your feet via movement is a great way to increase circulation and also improve your comfort levels.
If you sit at a bench, you may require a special foot rest that is extra high. A extra high office foot support will allow you to sit at a stool / drafting chair but have adequate foot support, such as the High Rise Footrest. An extra high foot rest such as the Z Footrest is a great option for anyone who works at a bench height workstation.
Check that there is adequate room between the front of the seat pan and the back of your knees. Ideally, there should be at least a 2-finger-wide gap. If you find the back of your knees are pressing up against the seat and there is no gap, you will need a shorter seat pan depth. This is a similar problem for taller individuals who have more than a 2-finger gap between the back of their knees and the seat pan; however, these individuals will require a deeper seat pan. Check that the seat pan is wide enough. Your backside should fit comfortably on the seat pan without any overhanging at the sides of the seat pan. Individuals with larger hips or frames will require a seat pan that is wider and deeper in order to comfortably accommodate their body frame.