Biomechanical and cognitive interactions during Visuo Motor Targeting Task |
| |
| Institution: | 1. Department of Biomedical Engineering, University of Melbourne, Parkville, VIC 3010, Australia;2. Melbourne School of Psychological Sciences, University of Melbourne, Parkville, VIC 3010, Australia;1. Department of Anatomy, University of Nigeria, Enugu Campus, Enugu, Enugu State, Nigeria;2. Department of Physiotherapy, Enugu State University Teaching Hospital Park Lane, Enugu, Enugu State, Nigeria;1. University of Primorska, Faculty of Health Sciences, Polje 42, SI-6310, Izola, Slovenia;2. University of Primorska, Andrej Marušič Institute, Muzejski trg 2, SI-6000, Koper, Slovenia;3. University of Niš, Faculty of Sport and Physical Education, Čarnojevićeva 10a, 18000, Niš, Serbia;4. InnoRenew CoE, Human Health Department, Livade 6, SI-6310, Izola, Slovenia;5. S2P, Science to Practice, Ltd., Laboratory for Motor Control and Motor Behavior, Tehnološki Park 19, SI-1000, Ljubljana, Slovenia;1. São Paulo State University (UNESP), Institute of Biosciences, Posture and Locomotion Studies Laboratory (LEPLO), Rio Claro, Brazil;2. Graduate Program in Movement Science, São Paulo State University (UNESP), Brazil;3. School of Kinesiology, University of British Columbia, Vancouver, BC, Canada;1. Human Motor Systems Laboratory, School of Physical Education and Sport, University of São Paulo, São Paulo, Brazil;2. Biomedical Engineering, Federal University of ABC, São Bernardo do Campo, São Paulo, Brazil;3. Exercise Neuroscience Research Group, School of Arts, Sciences, and Humanities, University of São Paulo, São Paulo, Brazil;4. Laboratory of Integrative Motor Behaviour, Centre for Neuroscience Studies, Queen’s University, Ontario, Canada;1. Department of Brain Sciences, Imperial College London, W6 8RF London, UK;2. Faculty of Science and Engineering, School of Medicine & Clinical Practice, University of Wolverhampton, Wolverhampton, WV1 1LY, UK;3. Department of Health Sciences, Lund University, S-221 85 Lund, Sweden;4. Memory Clinic, Skåne University Hospital, S-212 24 Malmö, Sweden;5. Clinical Memory Research Unit, Faculty of Medicine, Lund University, S-221 85 Lund, Sweden;6. Department of Neurosurgery, Lund University, S-221 85 Lund, Sweden;7. Department of Clinical Sciences, Lund University, S-221 85 Lund, Sweden;8. Department of Automatic Control, Lund University, S-221 00 Lund, Sweden |
| |
| Abstract: | BackgroundBiomechanical analyses primarily focus on physical aspects of human movement; however, it is not understood how walking is affected while simultaneously performing a demanding cognitive task - a form of Cognitive-Motor Interference (CMI). CMI occurs when performance of a primary task (e.g. walking) is affected following the introduction of a cognitive task (e.g. visual search).Research questionWould Visuo Motor Targeting Task (VMTT) impair visual search performance and reduce the margin of stability (MoS) at higher gait speeds?MethodsA protocol was developed to investigate responses of the neuromuscular system while performing a complex visual search task. The Computer Assisted Rehabilitation ENvironment (CAREN, Motekforce Link, Netherlands) system was used for the experimental design. Twenty male participants (Age = 24.2 ± 2.5yrs, Weight = 70.3 ± 10.6 kg, Height = 178.0 ± 9.1 cm) located and pointed towards targets in complex scenes while walking at different gait speeds (0.55, 1.11 and 1.67 m/s.) or while stationary. The cost of visual search during a Visuo Motor Targeting Task (VMTT) was based on the pointing accuracy during the visual search task.ResultsA two-way repeated measure ANOVA showed that MoS in the ML direction significantly improved with increased gait speed and during the visual search task. There was also a significant interaction with MoS improvement being greater during the visual search task at high gait speeds. MoS in the AP was only affected by gait speed. Visual performance and cost of visual search were enhanced during walking versus standing up to 25 %.SignificanceThis study investigated CMI at different gait speeds, which may have implications in postural control, falls and other neurological disorders. |
| |
| Keywords: | Cognitive Motor Interferences (CMI) Cost of dual-task Visuo Motor Targeting Task CAREN system Gait performance Visual search performance |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
