Individuals with neurological impairments experience difficulties in achieving sit-stand-sit
manoeuvre. Foot placement was found to result in alterations to knee moments throughout sitstand-sit cycle. This study aimed to investigate the relation between foot position and knee
extensor moments of both limbs during Sit-Stand-Sit cycle. Two healthy right-footed female
volunteered to participate in this study, which was carried out in the human movement
laboratory at the Nottingham City Hospital, Nottingham, United Kingdom. Muscle strength
was assessed by isokinetic dynamometer and a three-dimensional motion analysis system was
used to assess knee moment. Regarding muscle strength, torque values were higher in the
dominant side, also both subjects had high symmetry in eccentric values, while for concentric
values subject 2 had low symmetry. Higher knee extensor moment values were reported for
dominant limb when feet were symmetrical and dominant foot was placed posteriorly. But
when the non-dominant foot was behind, knee extensor moments were greater for the nondominant side. In conclusion, placing the limb in the more anterior position during Sit-StandSit cycle result in an increase of the knee extensor moment of the contralateral side. Also a
linear relationship revealed between muscle strength and knee moment symmetry. These
results could be translated for neurological patients to increase knee moments, decrease
moment asymmetry and avoid the learned nonuse syndrome.
Key Words: Foot Position, Knee Moment, Sit To Stand

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