We sit upright when first seated on any chair. This upright position holds for 10 to 20 minutes. The back is tired, the body moves towards the backrest. The seated position creates a downward force and backward
pressure. The downward pressure pushes the buttocks forward and we end up sitting on the tailbone, at the edge of the chair.
The spine is transformed into a "C" slouch. The slouch compresses the organs housed in upper chest chamber and muscle strain in the lower back. The discomfort causes repositioning (sit upright): only to resume the same vicious cycle minutes later.,
We find it hard to sit upright because leaning is part of our sitting culture. In leaning, we rely on the backrest to support our body, thus the unused back muscles become weaker over time. The result is structural collapse, back pain sets in.
The best of "ERGO" chairs with many features provide support to the body but does not encourage movement. The body does little to support itself as is aided by the "ergo" features to maintain proper posture. According to research, the spine stops receiving nourishment from direct blood supply when over the age of 10 years but is kept flexible through exercises and movement.
Sitting on the Ball is an ongoing exercise. When seated on the Ball, the feet, legs, hips, in conjunction with the hamstring and quadriceps muscles, support the upper body and to maintain control of the ball. The neurol ogical system coordinates various parts of the body to balance and maintain stability on the ball. The Ball's unstable surface prompts the user to reposition and maintain balance of body on the ball (encouraging movement). The weak trunk muscles (transverse abdominus and multifidus) supporting the spine, the cause of back pain, work on reflex. Sitting on the Ball stimulates the weak trunk muscles to keep the spine in "S" profile. Slouching, transfers the upper body weight to the feet. iIit causes one to fall off the ball while slumping creates an off balance from the center of Gravity.
Ball sitting strengthens the trunk muscles, improves postural control, keep the ligaments, nerves, muscles and neuro system (activity center for "Proprioception") constantly on the alert to maintain balance. This ongoing activity burns calories. Bouncing on the ball during breaks helps relieve tension and eases muscular spasm.
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