Coordination and timing of spine and hip joints during full body reaching tasks.

Coordination and timing of spine and hip joints during full body reaching tasks. Research Abstract Details 

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Coordination and timing of spine and hip joints during full body reaching tasks. Abstract Text:

James S Thomas,Gary E Gibson,

Coupling of spine and hip joints during full body reaching tasks was investigated in 16 participants (8 male and 8 female) who performed reaching tasks at comfortable and fast-paced movement speeds to three targets located in a para-sagittal plane. The participants paused at target contact for 500ms and then returned to an upright posture. Three-dimensional joint motions of the spine and hip were recorded using an electromagnetic tracking device. We found an effect of movement phase (i.e., reach and return) on the onset timing of the spine and hip joints. For most target locations and movement speeds, spine motion onset preceded hip motion onset during the reaching phase of the movement task. In the reach phase, when averaged across all movement conditions, spine joint motion preceded hip joint motion by an average of 48.9ms. In contrast, in the return phase, hip joint motion preceded spine joint motion by an average of 63.0ms. Additionally, when participants were instructed to use either a knee flexion or knee extension strategy to perform the reaching tasks there was no effect of movement strategy on timing of the spine and hip. There was also no effect of target height on the spine-hip ratio, but as movement speed increased, the spine/hip ratio decreased for all target locations due primarily to an increase in hip joint excursion. The findings indicate clear differences in onset timing of the spine and hip joints during reaching tasks that necessitate some forward bending of the trunk and that onset timing is reversed for the return to an upright posture.

Coordination and timing of spine and hip joints during full body reaching tasks. Publishing Authors By Initials

JS Thomas,GE Gibson,

For similar musculoskeletal system: skeleton: bone and bones: spine research abstracts see: musculoskeletal system: skeleton: bone and bones: spine research

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Coordination and timing of spine and hip joints during full body reaching tasks. Journal Published:

PUBLICATION TYPE: Research Support, N.I.H., Extr

Journal: Human movement science

VOLUME: 26

Page Numbers: 124-40

Journal Abbreviation:

ISSN: 0167-9457

DAY: 18

MONTH: 10

YEAR: 2006

Coordination and timing of spine and hip joints during full body reaching tasks. Information

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LANGUAGE: eng

NlmUniqueID: 8300127

Coordination and timing of spine and hip joints during full body reaching tasks. Keywords Mesh Terms:

KEYWORDS: Spine

MESH TERMS: physiology

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Grant and Affiliation Information for Coordination and timing of spine and hip joints during full body reaching tasks.

AFFILIATION: School of Physical Therapy, Ohio University, W277 Grover Center, Athens, OH 45701, USA. thomasj5@ohiou.edu

Country: Netherlands

AGENCY: United States NICHD

GRANT: R01-HD045512

ACRONYM: HD

MEDLINETA: Hum Mov Sci

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