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Kinematic and Kinetic Analysis of Wa...

Jin, Li.

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Kinematic and Kinetic Analysis of Walking and Running across Speeds and Transitions between Locomotion States.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Kinematic and Kinetic Analysis of Walking and Running across Speeds and Transitions between Locomotion States./
作者:	Jin, Li.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2018,
面頁冊數:	175 p.
附註:	Source: Dissertation Abstracts International, Volume: 79-09(E), Section: B.
Contained By:	Dissertation Abstracts International79-09B(E).
標題:	Biomechanics. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10750105
ISBN:	9780355858945

Kinematic and Kinetic Analysis of Walking and Running across Speeds and Transitions between Locomotion States.
Jin, Li.

Kinematic and Kinetic Analysis of Walking and Running across Speeds and Transitions between Locomotion States. - Ann Arbor : ProQuest Dissertations & Theses, 2018 - 175 p.

Source: Dissertation Abstracts International, Volume: 79-09(E), Section: B.

Thesis (Ph.D.)--University of Oregon, 2018.

Walking and running are general locomotion activities for human beings. Basic gait patterns and whole body center of mass (COM) dynamic patterns are distinctly different between them. Lower extremity joint mechanics patterns could reflect musculoskeletal coordination characteristics. Change of locomotion tasks and speeds can affect lower extremity joint kinematic and kinetic characteristics, and progression of age may also affect these characteristics. Little is known about change of locomotion tasks and speeds effects on lower extremity joint level kinetic characteristics, and whether there is a connection between COM system and lower extremity system. To address this, twenty healthy subjects were recruited to participate in a series of treadmill tests, including walking (0.8--2.0 m/s, with 0.2 m/s intervals), running (1.8--3.8 m/s, with 0.4 m/s intervals) and gait mode transition from walking to running, and from running to walking (between 1.8--2.4 m/s, +/- 0.1 m/s 2). Three-dimensional kinematic and kinetic data were collected in all locomotion tests and used to calculate and analyze outcome variables for lower extremity joints and the COM system across different conditions. Results indicate that change of locomotion speeds significantly affect joint level kinetic characteristics within both walking and running locomotion states. Different locomotion task demands (walking vs. running) require fundamental alteration of lower extremity joint level kinetic patterns, even at the same locomotion speed. Progression of age also affects lower extremity joint level kinematic and kinetic patterns in walking and running across speeds. Additionally, stance phase an energy generation and transfer phenomenon occurred between the distal and proximal joints of the lower extremity in both walk-to-run and run-to-walk transitions. Lastly, a connection exists between whole body COM oscillation patterns and lower extremity joint level kinetic characteristics in running. These findings serve to further clarify the mechanisms involved in change of locomotion tasks and speeds effects on lower extremity joint kinetic patterns, and further establish a connection between the COM system and the lower extremity system. These findings may be beneficial for future foot-ankle assistive device development, potential optimization of gait efficiency and performance enhancement.

ISBN: 9780355858945Subjects--Topical Terms:

548685
Biomechanics.

Kinematic and Kinetic Analysis of Walking and Running across Speeds and Transitions between Locomotion States.
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