https://scholars.lib.ntu.edu.tw/handle/123456789/79910
DC Field | Value | Language |
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dc.contributor.author | Hsu, Chih-Chin | en_US |
dc.contributor.author | Tsai, Wen-Chung | en_US |
dc.contributor.author | Chen, Carl Pai-Chu | en_US |
dc.contributor.author | Shau, Yio-Wha | en_US |
dc.contributor.author | Wang, Chung-Li | en_US |
dc.contributor.author | Chen, Max Jin-Lung | en_US |
dc.contributor.author | KING-JEN CHANG | en_US |
dc.creator | Hsu, Chih-Chin; Tsai, Wen-Chung; Chen, Carl Pai-Chu; Shau, Yio-Wha; Wang, Chung-Li; Chen, Max Jin-Lung; Chang, King-Jen | - |
dc.date | 2005 | en |
dc.date.accessioned | 2009-01-21T08:52:45Z | - |
dc.date.accessioned | 2018-06-29T00:09:16Z | - |
dc.date.available | 2009-01-21T08:52:45Z | - |
dc.date.available | 2018-06-29T00:09:16Z | - |
dc.date.issued | 2005 | - |
dc.identifier.uri | http://ntur.lib.ntu.edu.tw//handle/246246/107073 | - |
dc.description.abstract | The plantar soft tissue properties under the metatarsal heads at different impact velocities in different age groups were measured. Each metatarsus of the left foot in healthy young adults (n = 9, 19 to 35 years old) and in healthy older persons (n = 10, 42 to 72 years old) was examined in vivo using a self-constructed loading-unloading device at low, medium and high impact status; the impact velocities of the device were about 2.5, 5 and 10 cm/s, respectively. The device comprised a 5- to 12-MHz linear-array ultrasound transducer, a miniature load cell and a fixation frame. From low to high impact status, the elastic modulus (E) in young adults significantly increased from about 300 kPa to about 500 kPa. However, the E in the older group did not show this trend. From low to high impact status, the energy dissipation ratio (EDR) of the metatarsus significantly increased from about 30% to about 60% in the young group and significantly increased from about 40% to about 70% in the older group. Most of the metatarsus in the older subjects had significantly greater E and EDR than those in the younger persons. ? 2005 World Federation for Ultrasound in Medicine & Biology. | - |
dc.format | application/pdf | en |
dc.format.extent | 310424 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language | en | en |
dc.language.iso | en_US | - |
dc.relation | Ultrasound in Medicine & Biology 31 (10): 1423-1429 | en |
dc.relation.ispartof | Ultrasound in Medicine & Biology | en_US |
dc.subject.classification | [SDGs]SDG3 | - |
dc.subject.other | Aging of materials; Biomechanics; Cells; Elastic moduli; Energy dissipation; Health care; Ultrasonic transducers; Aging; Impact velocity; Metatarsus; Ultrasonography; Tissue; adult; aged; aging; article; biomechanics; female; foot; forefoot; human; human experiment; male; metatarsal bone; normal human; priority journal; soft tissue; ultrasound; velocity; weight bearing; young modulus; Adult; Aged; Aging; Body Mass Index; Connective Tissue; Elasticity; Female; Foot; Humans; Male; Metatarsus; Middle Aged; Stress, Mechanical | - |
dc.title | Effects of aging on the plantar soft tissue properties under the metatarsal heads at different impact velocities | en |
dc.identifier.doi | 10.1016/j.ultrasmedbio.2005.05.009 | - |
dc.identifier.scopus | 2-s2.0-26444480183 | - |
dc.identifier.isi | WOS:000232618500016 | - |
dc.relation.pages | 1423-1429 | - |
dc.relation.journalvolume | 31 | - |
dc.relation.journalissue | 10 | - |
dc.identifier.uri.fulltext | http://ntur.lib.ntu.edu.tw/bitstream/246246/107073/1/10.pdf | - |
item.languageiso639-1 | en_US | - |
item.grantfulltext | open | - |
item.fulltext | with fulltext | - |
crisitem.author.dept | Surgery | - |
crisitem.author.dept | Surgery-NTUH | - |
crisitem.author.orcid | 0000-0002-3364-8183 | - |
crisitem.author.orcid | 0000-0001-9811-3422 | - |
crisitem.author.parentorg | College of Medicine | - |
crisitem.author.parentorg | National Taiwan University Hospital | - |
Appears in Collections: | 應用力學研究所 |
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