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Modulation of Foot Mechanical Work d...
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Papachatzis, Nikolaos.
Modulation of Foot Mechanical Work during Walking with Added Mass.
紀錄類型:
書目-語言資料,手稿 : Monograph/item
正題名/作者:
Modulation of Foot Mechanical Work during Walking with Added Mass./
作者:
Papachatzis, Nikolaos.
面頁冊數:
1 online resource (60 pages)
附註:
Source: Masters Abstracts International, Volume: 57-01.
Contained By:
Masters Abstracts International57-01(E).
標題:
Biomechanics. -
電子資源:
click for full text (PQDT)
ISBN:
9780355526318
Modulation of Foot Mechanical Work during Walking with Added Mass.
Papachatzis, Nikolaos.
Modulation of Foot Mechanical Work during Walking with Added Mass.
- 1 online resource (60 pages)
Source: Masters Abstracts International, Volume: 57-01.
Thesis (M.S.)--University of Nebraska at Omaha, 2017.
Includes bibliographical references
INTRODUCTION: The human foot has notable anatomical components that act as a unit and give the human foot the ability to perform several functions during locomotion. When accounting for all structures distal to the hindfoot (e.g., muscles, tendons, and soft tissue deformation), the human foot overall dissipates/absorbs energy during walking. The purpose of this study was to determine how walking with varying levels of added mass affect the combined functional behavior of the foot. We hypothesized that the foot structures would increase the amount of dissipated/absorbed energy when walking with added mass.
Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2018
Mode of access: World Wide Web
ISBN: 9780355526318Subjects--Topical Terms:
565307
Biomechanics.
Index Terms--Genre/Form:
554714
Electronic books.
Modulation of Foot Mechanical Work during Walking with Added Mass.
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Modulation of Foot Mechanical Work during Walking with Added Mass.
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Source: Masters Abstracts International, Volume: 57-01.
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Adviser: Kota Z. Takahashi.
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Thesis (M.S.)--University of Nebraska at Omaha, 2017.
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Includes bibliographical references
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INTRODUCTION: The human foot has notable anatomical components that act as a unit and give the human foot the ability to perform several functions during locomotion. When accounting for all structures distal to the hindfoot (e.g., muscles, tendons, and soft tissue deformation), the human foot overall dissipates/absorbs energy during walking. The purpose of this study was to determine how walking with varying levels of added mass affect the combined functional behavior of the foot. We hypothesized that the foot structures would increase the amount of dissipated/absorbed energy when walking with added mass.
520
$a
METHOD: Eighteen healthy, young participants completed barefoot walking in three randomized loading conditions (0, +15, and +30% of added body mass). The walking speed was targeted at 1.25 m/s (2.8 mph). The mechanical power of the foot during the over-ground trials was quantified using a unified deformable segment analysis by modeling all structures distal to the calcaneus as a deforming body. We quantified the negative and positive mechanical work over stance, by integrating the positive and negative portions of the mechanical power data.
520
$a
RESULTS: Walking with added mass had a significant effect on the magnitude of positive work (p < 0.001), including a 19% increase between 0 and +30% added mass conditions (p < 0.001). There was no significant effect of added mass on negative work (p = 0.055) and on net work (p = 0.402).
520
$a
DISCUSSION: Experimental results failed to support our initial hypothesis, as the foot increased the magnitude of positive work, and preserved similar amounts of net negative work (i.e., energy dissipated/absorbed) across varying levels of added mass conditions. Overall, the foot appears to have similar characteristics of a shock absorber-spring complex. We speculate that this feature could be beneficial for different types of activities, and further investigation of this behavior will revise our fundamental understanding of lower limb function.
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Electronic reproduction.
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Ann Arbor, Mich. :
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ProQuest,
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2018
538
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Mode of access: World Wide Web
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Biomechanics.
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565307
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ProQuest Information and Learning Co.
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University of Nebraska at Omaha.
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click for full text (PQDT)
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