چکیده:
The aim of this study was to assess whether proprioceptive information of trunk muscles as a reference frame plays a role in determining directions. Eleven young healthy right-handed male subjects (age: 23.78 ? 0.78 years، height: 169.7?5.7 cm، and mass: 62.8 ? 6.8 kg، BMI: 22.34? 1.7 kg/m2) volunteered to participate in this study. Unilateral trunk muscle vibration was applied either from the beginning or the middle of a seven-step task with their eyes open (OE) or blindfolded. The deviation from the walking path was determined as the distance of the seventh footprint from the first one along the mediolateral axis. Foot angles and stride lengths were calculated for all footprints. All deviations from the straight path were measured by footprint deviation from the reference line on the ground. Two-way repeated measure ANOVA (two vision conditions and three vibration conditions) was used to test the significant difference in distance parameter. Three-way repeated measure ANOVA (vision and vibration conditions and angle of footprint) was used to determine the difference between the mean angle of foot deviation from the reference line and stride length within and in the middle of the three vibration conditions and two vision conditions. The results showed that vibration produced a clear-cut deviation from the straight direction when delivered in the middle of blindfolded locomotion (P=0.0.1). The deviation was much smaller with OE (P=0.06). A mild deviation was obtained in blindfolded condition when vibration started at the beginning of locomotion (P=0.77). Trunk proprioception plays a major role in defining locomotor trajectory.
خلاصه ماشینی:
Sports Medicine - Summer 1388 No. 1 - pp: 26-25 Date Received: 05/03/87 Date Approved: 03/09/87 The Effect of Vibration on Deep Sensory Information of Trunk Muscles in Young Healthy Men, in Guiding the Movement Path of Walking Seyed Hossein Hosseini Mehr1-Ali Asghar Norasteh-Mehdi Khaleghi Tazaji-Ali Abbasi Master of Science, University of Gilan, Assistant Professor, University of Gilan, Senior Expert in Teacher Training, Senior Expert, Teacher Training Abstract {IBHumans evaluate their surroundings during movement and displacement and choose a path that is sequentially updated by the image in the central nervous system from the space of movement.
Unilateral vibration of the trunk muscles was applied from the beginning and middle of the path, in a motor task (walking, seven steps) in closed-eye and open-eye conditions.
Considering the importance of deep sensory information on control(1)- seigetartS dexiM Considering the body state, the aim of the present study is to determine the role of deep sensory information of the trunk muscles in guiding the movement path of walking.
(Refer to the page image) Discussion and Conclusion The results of the research showed that vibration of the trunk muscles creates a clear deviation in the forward division path, when the vibration is applied in closed-eye conditions, during the second heel strike of the left foot compared to when the vibration is applied initially.
Therefore, it seems that proprioceptive information from the trunk muscles plays an important role in guiding the walking path in closed-eye conditions.
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