Abstract：
:Tension is necessary to maintain and restore the mechanical properties of soft connective tissues. Conversely, reduced tension states such as produced by immobilization weaken mechanical properties and facilitate joint contracture. We assessed the effect of low torque-long duration stretching to increase the range of motion (ROM) and to restore the mechanical properties of contracted joints in 66 rat knees immobilized for 40 days. After remobilization, we randomly divided the contracted knees into four treatment groups treated with repeated stretches of diverse torques and duration: stretching with low-torque and long-duration, high-torque and short-duration, high-torque and long-duration, low-torque and short duration. We included control and natural recovery groups. Phase lag in all treatment groups recovered to the same range as in the normal controls. Dynamic stiffness, which was not altered by joint immobilization, increased in all treatment groups. Deformation and load to failure improved substantially only in the low-torque and long-duration stretching group. Low-torque and long-duration repeated stretching leads to a greater restoration of ROM with more normal mechanical properties compared to high-torque and short duration stretching.
journal_name
Clin Orthop Relat Resjournal_title
Clinical orthopaedics and related researchauthors
Usuba M,Akai M,Shirasaki Y,Miyakawa Sdoi
10.1097/BLO.0b013e31803212bfsubject
Has Abstractpub_date
2007-03-01 00:00:00pages
70-8eissn
0009-921Xissn
1528-1132journal_volume
456pub_type
杂志文章abstract：BACKGROUND:Osteoarthritis is common and debilitating, in part because it often affects more than one large weightbearing joint. The likelihood of undergoing more than one total joint arthroplasty has not been studied in a heterogeneous, multicenter population in the United States. QUESTIONS/PURPOSES:We used prospectiv...
journal_title：Clinical orthopaedics and related research
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更新日期：2020-01-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
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更新日期：2011-05-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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更新日期：2010-07-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
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journal_title：Clinical orthopaedics and related research
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更新日期：1999-05-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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更新日期：1995-04-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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更新日期：2012-10-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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更新日期：2012-02-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1983-03-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1985-04-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1007/s11999.0000000000000125
更新日期：2018-05-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：10.1097/BLO.0b013e3180598ff2
更新日期：2007-08-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
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journal_title：Clinical orthopaedics and related research
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journal_title：Clinical orthopaedics and related research
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pub_type： 历史文章,杂志文章
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更新日期：1986-09-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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doi：10.1097/01.blo.0000129159.65684.b3
更新日期：2004-06-01 00:00:00
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journal_title：Clinical orthopaedics and related research
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更新日期：2005-01-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1986-11-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 临床试验,杂志文章,随机对照试验
doi：
更新日期：1997-01-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章
doi：
更新日期：1989-11-01 00:00:00
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journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
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更新日期：1998-10-01 00:00:00
abstract：:Design of a synthetic replacement or selection of a biologic substitute requires detailed knowledge of the mechanical properties of the normal ligament. Femur-anterior cruciate ligament-tibia unit (ACL) data have been frequently used for this purpose, although not always properly. Mechanical properties of the human AC...
journal_title：Clinical orthopaedics and related research
pub_type： 杂志文章,评审
doi：
更新日期：1985-06-01 00:00:00
