5 Similarly, Kaji et al 7 evaluated the immediate effect of core-stabilization exercise on static bipedal postural sway in 17 healthy young adults and showed a reduction in the COP sway area and velocity in the mediolateral direction. 6 Such excessive postural sway could indicate altered core stability and may be related to the causes of some types of LBP.

4, 5 In fact, Luoto et al 6 examined static unipedal postural stability in chronic LBP and found increased postural sway as evidenced by greater velocity of center-of-pressure (COP) sway than in normal controls. 3 However, core instability recently has been identified as a pathomarker for low back pain (LBP). 1, 2 Based on this concept, we operationally defined static core stability as the active core stabilization achieved by selective activation of the transverse abdominis (TrA) and internal oblique (IO) muscles with a minimal contraction of the other superficial abdominal muscles during the abdominal drawing-in maneuver (ADIM) in the prone position. 1 Unlike passive stiffness, active stiffness is a controllable measure that transforms inherent elastic potential energy under a loading condition into kinetic energy, creating sufficient stability. Core stability involves a coordinated stabilization of the lumbo-pelvic-hip complex via active (elastic muscles) and passive (inert ligaments and capsules) stiffness mechanisms.

Static core stability is an important foundation for static postural control during sports activities.

Medison sonoace x8 manual arts