Comparison of the mechanical properties of the heel pad between young and elderly adults
Objective: To compare the mechanical properties of the human heel pad between young and aged adults. Design: A 7.5-MHz linear-array ultrasound transducer was incorporated into a specially designed device to measure the thickness of the heel pad under different loads. The heel pad was compressed with...
Gespeichert in:
| Veröffentlicht in: | Archives of physical medicine and rehabilitation 1998-09, Vol.79 (9), p.1101-1104 |
|---|---|
| Hauptverfasser: | , , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 1104 |
|---|---|
| container_issue | 9 |
| container_start_page | 1101 |
| container_title | Archives of physical medicine and rehabilitation |
| container_volume | 79 |
| creator | Hsu, Tsz-Ching Wang, Chung-Li Tsai, Wen-Chung Kuo, Jung-Kun Tang, Fuk-Tan |
| description | Objective: To compare the mechanical properties of the human heel pad between young and aged adults.
Design: A 7.5-MHz linear-array ultrasound transducer was incorporated into a specially designed device to measure the thickness of the heel pad under different loads. The heel pad was compressed with serial increments of 0.5kg to a maximum of 3kg and then relaxed sequentially. Then the load-displacement curve of the heel pad during a loading-unloading cycle was plotted.
Participants: Convenience sample of 33 volunteers without heel problems, aged 18 to 78 years, were divided into young (less than 40 years) and elderly (older than 60 years) groups.
Main Outcome Measures: Unloaded heel-pad thickness, compressibility index, stiffness, and energy dissipation ratio were calculated from the load-displacement curves. Student's t-test was used to compare the mechanical properties of the heel between these two groups.
Results: The average unloaded heel-pad thickness was 1.76 ± .20cm in the young group and 2.01 ± .24cm in the elderly group (
p < .001). The average compressibility index was 53.3% ±7.7% in the young group and 61.3% ± 5.5% in the elderly group (
p < .001). Energy dissipation ratio representing shock absorbency of the heel pad, was 23.7% ± 6.9% in the young group and 35.3% ± 10% in the elderly group (
p < .001).
Conclusion: Unloaded heel-pad thickness, compressibility index, and energy dissipation ratio of the heel pad were significantly increased in the elderly group, indicating loss of the elasticity of the heel pad. The loss of elasticity may be responsible for the higher incidence of heel injury in elderly individuals. |
| doi_str_mv | 10.1016/S0003-9993(98)90178-2 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_miscellaneous_73920725</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0003999398901782</els_id><sourcerecordid>73920725</sourcerecordid><originalsourceid>FETCH-LOGICAL-c441t-895308af4890d81d317b50017fc6806665ea3cd9d28f7264b88e78f0de212a943</originalsourceid><addsrcrecordid>eNqFkMtKAzEUhoMotVYfoZCFiC5Gc5lLshIp3qDgQoXuQpqcsZG51GRG6dubXuzWVUj-7-Sc8yE0puSaEprfvBJCeCKl5JdSXElCC5GwAzSkGWeJYHR2iIZ75BidhPAZr3nG6QANZJHKXNIhmk3aeqm9C22D2xJ3C8A1mIVunNEVXvp2Cb5zEP7CBUB81hbPofsBaPCq7ZsPrBuLobLgqxXWtq-6cIqOSl0FONudI_T-cP82eUqmL4_Pk7tpYtKUdomQGSdCl6mQxApqOS3mGYnLlCYXJM_zDDQ3VlomyoLl6VwIKERJLDDKtEz5CF1s_42zfvUQOlW7YKCqdANtH1TBJSMFyyKYbUHj2xA8lGrpXa39SlGi1kbVxqha61JSqI1RxWLdeNegn9dg91U7hTE_3-U6RGel141xYY8xLtb9I3a7xSDK-HbgVTAOGgPWeTCdsq37Z5BfnaiR9A</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>73920725</pqid></control><display><type>article</type><title>Comparison of the mechanical properties of the heel pad between young and elderly adults</title><source>MEDLINE</source><source>Elsevier ScienceDirect Journals Complete</source><source>EZB-FREE-00999 freely available EZB journals</source><creator>Hsu, Tsz-Ching ; Wang, Chung-Li ; Tsai, Wen-Chung ; Kuo, Jung-Kun ; Tang, Fuk-Tan</creator><creatorcontrib>Hsu, Tsz-Ching ; Wang, Chung-Li ; Tsai, Wen-Chung ; Kuo, Jung-Kun ; Tang, Fuk-Tan</creatorcontrib><description>Objective: To compare the mechanical properties of the human heel pad between young and aged adults.
Design: A 7.5-MHz linear-array ultrasound transducer was incorporated into a specially designed device to measure the thickness of the heel pad under different loads. The heel pad was compressed with serial increments of 0.5kg to a maximum of 3kg and then relaxed sequentially. Then the load-displacement curve of the heel pad during a loading-unloading cycle was plotted.
Participants: Convenience sample of 33 volunteers without heel problems, aged 18 to 78 years, were divided into young (less than 40 years) and elderly (older than 60 years) groups.
Main Outcome Measures: Unloaded heel-pad thickness, compressibility index, stiffness, and energy dissipation ratio were calculated from the load-displacement curves. Student's t-test was used to compare the mechanical properties of the heel between these two groups.
Results: The average unloaded heel-pad thickness was 1.76 ± .20cm in the young group and 2.01 ± .24cm in the elderly group (
p < .001). The average compressibility index was 53.3% ±7.7% in the young group and 61.3% ± 5.5% in the elderly group (
p < .001). Energy dissipation ratio representing shock absorbency of the heel pad, was 23.7% ± 6.9% in the young group and 35.3% ± 10% in the elderly group (
p < .001).
Conclusion: Unloaded heel-pad thickness, compressibility index, and energy dissipation ratio of the heel pad were significantly increased in the elderly group, indicating loss of the elasticity of the heel pad. The loss of elasticity may be responsible for the higher incidence of heel injury in elderly individuals.</description><identifier>ISSN: 0003-9993</identifier><identifier>EISSN: 1532-821X</identifier><identifier>DOI: 10.1016/S0003-9993(98)90178-2</identifier><identifier>PMID: 9749691</identifier><identifier>CODEN: APMHAI</identifier><language>eng</language><publisher>New York, NY: Elsevier Inc</publisher><subject>Adolescent ; Adult ; Aged ; Aging - physiology ; Biological and medical sciences ; Biomechanical Phenomena ; Compliance ; Elasticity ; Female ; Heel - diagnostic imaging ; Heel - physiology ; Humans ; Investigative techniques, diagnostic techniques (general aspects) ; Male ; Medical sciences ; Middle Aged ; Osteoarticular system. Muscles ; Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques ; Reference Values ; Space life sciences ; Ultrasonography ; Weight-Bearing - physiology</subject><ispartof>Archives of physical medicine and rehabilitation, 1998-09, Vol.79 (9), p.1101-1104</ispartof><rights>1998</rights><rights>1998 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c441t-895308af4890d81d317b50017fc6806665ea3cd9d28f7264b88e78f0de212a943</citedby><cites>FETCH-LOGICAL-c441t-895308af4890d81d317b50017fc6806665ea3cd9d28f7264b88e78f0de212a943</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://www.sciencedirect.com/science/article/pii/S0003999398901782$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>309,310,314,776,780,785,786,3537,23909,23910,25118,27901,27902,65534</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=2382072$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/9749691$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Hsu, Tsz-Ching</creatorcontrib><creatorcontrib>Wang, Chung-Li</creatorcontrib><creatorcontrib>Tsai, Wen-Chung</creatorcontrib><creatorcontrib>Kuo, Jung-Kun</creatorcontrib><creatorcontrib>Tang, Fuk-Tan</creatorcontrib><title>Comparison of the mechanical properties of the heel pad between young and elderly adults</title><title>Archives of physical medicine and rehabilitation</title><addtitle>Arch Phys Med Rehabil</addtitle><description>Objective: To compare the mechanical properties of the human heel pad between young and aged adults.
Design: A 7.5-MHz linear-array ultrasound transducer was incorporated into a specially designed device to measure the thickness of the heel pad under different loads. The heel pad was compressed with serial increments of 0.5kg to a maximum of 3kg and then relaxed sequentially. Then the load-displacement curve of the heel pad during a loading-unloading cycle was plotted.
Participants: Convenience sample of 33 volunteers without heel problems, aged 18 to 78 years, were divided into young (less than 40 years) and elderly (older than 60 years) groups.
Main Outcome Measures: Unloaded heel-pad thickness, compressibility index, stiffness, and energy dissipation ratio were calculated from the load-displacement curves. Student's t-test was used to compare the mechanical properties of the heel between these two groups.
Results: The average unloaded heel-pad thickness was 1.76 ± .20cm in the young group and 2.01 ± .24cm in the elderly group (
p < .001). The average compressibility index was 53.3% ±7.7% in the young group and 61.3% ± 5.5% in the elderly group (
p < .001). Energy dissipation ratio representing shock absorbency of the heel pad, was 23.7% ± 6.9% in the young group and 35.3% ± 10% in the elderly group (
p < .001).
Conclusion: Unloaded heel-pad thickness, compressibility index, and energy dissipation ratio of the heel pad were significantly increased in the elderly group, indicating loss of the elasticity of the heel pad. The loss of elasticity may be responsible for the higher incidence of heel injury in elderly individuals.</description><subject>Adolescent</subject><subject>Adult</subject><subject>Aged</subject><subject>Aging - physiology</subject><subject>Biological and medical sciences</subject><subject>Biomechanical Phenomena</subject><subject>Compliance</subject><subject>Elasticity</subject><subject>Female</subject><subject>Heel - diagnostic imaging</subject><subject>Heel - physiology</subject><subject>Humans</subject><subject>Investigative techniques, diagnostic techniques (general aspects)</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Middle Aged</subject><subject>Osteoarticular system. Muscles</subject><subject>Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques</subject><subject>Reference Values</subject><subject>Space life sciences</subject><subject>Ultrasonography</subject><subject>Weight-Bearing - physiology</subject><issn>0003-9993</issn><issn>1532-821X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1998</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFkMtKAzEUhoMotVYfoZCFiC5Gc5lLshIp3qDgQoXuQpqcsZG51GRG6dubXuzWVUj-7-Sc8yE0puSaEprfvBJCeCKl5JdSXElCC5GwAzSkGWeJYHR2iIZ75BidhPAZr3nG6QANZJHKXNIhmk3aeqm9C22D2xJ3C8A1mIVunNEVXvp2Cb5zEP7CBUB81hbPofsBaPCq7ZsPrBuLobLgqxXWtq-6cIqOSl0FONudI_T-cP82eUqmL4_Pk7tpYtKUdomQGSdCl6mQxApqOS3mGYnLlCYXJM_zDDQ3VlomyoLl6VwIKERJLDDKtEz5CF1s_42zfvUQOlW7YKCqdANtH1TBJSMFyyKYbUHj2xA8lGrpXa39SlGi1kbVxqha61JSqI1RxWLdeNegn9dg91U7hTE_3-U6RGel141xYY8xLtb9I3a7xSDK-HbgVTAOGgPWeTCdsq37Z5BfnaiR9A</recordid><startdate>19980901</startdate><enddate>19980901</enddate><creator>Hsu, Tsz-Ching</creator><creator>Wang, Chung-Li</creator><creator>Tsai, Wen-Chung</creator><creator>Kuo, Jung-Kun</creator><creator>Tang, Fuk-Tan</creator><general>Elsevier Inc</general><general>Elsevier</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>19980901</creationdate><title>Comparison of the mechanical properties of the heel pad between young and elderly adults</title><author>Hsu, Tsz-Ching ; Wang, Chung-Li ; Tsai, Wen-Chung ; Kuo, Jung-Kun ; Tang, Fuk-Tan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c441t-895308af4890d81d317b50017fc6806665ea3cd9d28f7264b88e78f0de212a943</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1998</creationdate><topic>Adolescent</topic><topic>Adult</topic><topic>Aged</topic><topic>Aging - physiology</topic><topic>Biological and medical sciences</topic><topic>Biomechanical Phenomena</topic><topic>Compliance</topic><topic>Elasticity</topic><topic>Female</topic><topic>Heel - diagnostic imaging</topic><topic>Heel - physiology</topic><topic>Humans</topic><topic>Investigative techniques, diagnostic techniques (general aspects)</topic><topic>Male</topic><topic>Medical sciences</topic><topic>Middle Aged</topic><topic>Osteoarticular system. Muscles</topic><topic>Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques</topic><topic>Reference Values</topic><topic>Space life sciences</topic><topic>Ultrasonography</topic><topic>Weight-Bearing - physiology</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hsu, Tsz-Ching</creatorcontrib><creatorcontrib>Wang, Chung-Li</creatorcontrib><creatorcontrib>Tsai, Wen-Chung</creatorcontrib><creatorcontrib>Kuo, Jung-Kun</creatorcontrib><creatorcontrib>Tang, Fuk-Tan</creatorcontrib><collection>Pascal-Francis</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Archives of physical medicine and rehabilitation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hsu, Tsz-Ching</au><au>Wang, Chung-Li</au><au>Tsai, Wen-Chung</au><au>Kuo, Jung-Kun</au><au>Tang, Fuk-Tan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Comparison of the mechanical properties of the heel pad between young and elderly adults</atitle><jtitle>Archives of physical medicine and rehabilitation</jtitle><addtitle>Arch Phys Med Rehabil</addtitle><date>1998-09-01</date><risdate>1998</risdate><volume>79</volume><issue>9</issue><spage>1101</spage><epage>1104</epage><pages>1101-1104</pages><issn>0003-9993</issn><eissn>1532-821X</eissn><coden>APMHAI</coden><abstract>Objective: To compare the mechanical properties of the human heel pad between young and aged adults.
Design: A 7.5-MHz linear-array ultrasound transducer was incorporated into a specially designed device to measure the thickness of the heel pad under different loads. The heel pad was compressed with serial increments of 0.5kg to a maximum of 3kg and then relaxed sequentially. Then the load-displacement curve of the heel pad during a loading-unloading cycle was plotted.
Participants: Convenience sample of 33 volunteers without heel problems, aged 18 to 78 years, were divided into young (less than 40 years) and elderly (older than 60 years) groups.
Main Outcome Measures: Unloaded heel-pad thickness, compressibility index, stiffness, and energy dissipation ratio were calculated from the load-displacement curves. Student's t-test was used to compare the mechanical properties of the heel between these two groups.
Results: The average unloaded heel-pad thickness was 1.76 ± .20cm in the young group and 2.01 ± .24cm in the elderly group (
p < .001). The average compressibility index was 53.3% ±7.7% in the young group and 61.3% ± 5.5% in the elderly group (
p < .001). Energy dissipation ratio representing shock absorbency of the heel pad, was 23.7% ± 6.9% in the young group and 35.3% ± 10% in the elderly group (
p < .001).
Conclusion: Unloaded heel-pad thickness, compressibility index, and energy dissipation ratio of the heel pad were significantly increased in the elderly group, indicating loss of the elasticity of the heel pad. The loss of elasticity may be responsible for the higher incidence of heel injury in elderly individuals.</abstract><cop>New York, NY</cop><pub>Elsevier Inc</pub><pmid>9749691</pmid><doi>10.1016/S0003-9993(98)90178-2</doi><tpages>4</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0003-9993 |
| ispartof | Archives of physical medicine and rehabilitation, 1998-09, Vol.79 (9), p.1101-1104 |
| issn | 0003-9993 1532-821X |
| language | eng |
| recordid | cdi_proquest_miscellaneous_73920725 |
| source | MEDLINE; Elsevier ScienceDirect Journals Complete; EZB-FREE-00999 freely available EZB journals |
| subjects | Adolescent Adult Aged Aging - physiology Biological and medical sciences Biomechanical Phenomena Compliance Elasticity Female Heel - diagnostic imaging Heel - physiology Humans Investigative techniques, diagnostic techniques (general aspects) Male Medical sciences Middle Aged Osteoarticular system. Muscles Pathology. Cytology. Biochemistry. Spectrometry. Miscellaneous investigative techniques Reference Values Space life sciences Ultrasonography Weight-Bearing - physiology |
| title | Comparison of the mechanical properties of the heel pad between young and elderly adults |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-14T20%3A04%3A20IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Comparison%20of%20the%20mechanical%20properties%20of%20the%20heel%20pad%20between%20young%20and%20elderly%20adults&rft.jtitle=Archives%20of%20physical%20medicine%20and%20rehabilitation&rft.au=Hsu,%20Tsz-Ching&rft.date=1998-09-01&rft.volume=79&rft.issue=9&rft.spage=1101&rft.epage=1104&rft.pages=1101-1104&rft.issn=0003-9993&rft.eissn=1532-821X&rft.coden=APMHAI&rft_id=info:doi/10.1016/S0003-9993(98)90178-2&rft_dat=%3Cproquest_cross%3E73920725%3C/proquest_cross%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=73920725&rft_id=info:pmid/9749691&rft_els_id=S0003999398901782&rfr_iscdi=true |