Sitting posture reflects the way muscles and bones are used in sitting in an upright position to support the upper body weight against the pull of the Earth’s gravity. While maintaining the body posture in standing and sitting position we are working against the pull of gravity.
The body has weight because of the pull of gravity. Supporting our own body weight is a work against the pull of the Earth’s gravity.
Doing physical activity or designed exercises for thirty or sixty minutes a day is meaningless amount of physical work compared to all day long work of the entire musculoskeletal system just to support the body weight against the pull of the Earth’s gravity.
Cushioned or upholstered sitting furniture like armchair, sofa and couch forces us to adjust our body posture to the softness’ of the furniture. When we sit on modern sitting furniture, literally we sink into them. Most of today’s arm chairs, sofas and couch are designed in such a way that it is nearly impossible to maintain correct body posture while sitting on them. When we sit, we are forced to adjust the body posture to the shape and to the degree of softness of the sitting furniture......
........ [The full text of this article is in the Book]
Biomechanics and Weight Loss – B/W Edition
Biomechanics and Weight Loss – Colour Edition
