Different motor tasks impact differently on cognitive performance of older persons during dual task tests
2013
BACKGROUND: Dual task paradigm states that the introduction of a second task during a cognitive or motor performance results in a decreased performance in either task. Treadmill walk, often used in clinical applications of dual task testing, has never been compared to overground walk, to ascertain its susceptibility to interference from a second task. We compared the effects of overground and treadmill gait on dual task performance. METHODS: Gait kinematic parameters and cognitive performance were obtained in 29 healthy older adults (mean age 75years, 14 females) when they were walking freely on a sensorized carpet or during treadmill walking with an optoelectronic system, in single task or dual task conditions, using alternate repetition of letters as a cognitive verbal task. FINDINGS: During overground walking, speed, cadence, step length stride length, and double support time (all with P value Language: en
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