Tut 9

• Postural orientation

  • Active alignment of trunk and head with respect to gravity, support surfaces and surroundings (as well as internal references)
  • Relative usage of 3 systems (Somatosensory, Visual and Vestibular system) depends on goal of task environmental context
• Postural Equilibrium

  • Coordination of movement strategies to stabilise the centre of body mass during self-initiated and/or externally triggered disturbances of stability
  • Strategy selected depends not only on the characteristics of the external postural displacement but also on the individual’s expectations, goals and prior experience. (Some strategies are unsuccessful!)