Najafi, BHelbostad, JMoe-Nilssen, RZijlstra, WAminian, K2008-09-272008-09-27200910.1016/j.gaitpost.2008.09.002https://infoscience.epfl.ch/handle/20.500.14299/29725WOS:000263506900016GaitElderly peopleLong walking vs. short walking distanceTest-retest reliabilityGait variabilityGait strategyAmbulatory systemBody-worn sensorPhysilogGaitRiteFall preventionSpinal-Cord StimulationAmbulatory SystemParkinsons-DiseasePhysical-ActivityElderly PersonsMotion AnalysisChronic PainGait ChangesGyroscopesParametersDoes walking strategy in older people change as a function of walking distance?text::journal::journal article::research article