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Pre- and postoperative postural regulation following anterior cruciate ligament reconstruction
Thomas Bartels,Kay Brehme,Martin Pyschik,Stephan Schulze,Karl-Stefan Delank,Georg Fieseler,Kevin G. Laudner,Souhail Hermassi,René Schwesig 한국운동재활학회 2018 JER Vol.14 No.1
There are currently no longitudinal data describing the pre- and postop-erative postural regulation and stability of patients with anterior cruci-ate ligament (ACL) damage. Therefore, the aim of this study was to evaluate postural regulation and stability prior to and during rehabilita-tion following surgery of the ACL. Fifty-four physically active subjects (age: 30.5±10.9 years, 29 male subjects) were examined with the Inter-active Balance System pre-, 6, and at 12 weeks following surgical re-construction of the ACL using a hamstring tendon graft. The average period of time from injury to surgery was 27 days. Data were calculated with unifactorial and univariate analysis of variance. Significant effects were found for the somatosensory system (η2=0.115), stability indicator (η2=0.123), weight distribution index (η2=0.176), and synchronization (foot coordination) (η2=0.249). Involved side weight distribution (param-eter: left) increased significantly (patients with left-sided/right-sided in-jury: η2=0.234/0.272). Load distribution to the heel remained stable during all three examination periods (η2=0.035 and η2=0.071), although a remarkable load at forefoot was observed. In seven out of 10 parame-ters partial effects were seen during the first 6 weeks after surgery. The results of this study indicated that injury of the ACL and subsequent surgical reconstructions result in postural regulation, with improve-ments in somatosensory system function, postural stability, weight dis-tribution index, and foot coordination. Also, overloading of the injured side on the feet reduces significantly during rehabilitation. Thus, the ini-tial phase of rehabilitation (weeks 1 to 6) seems to be more effective than the second period (weeks 6 to 12) postoperatively.
Final report on APMP.M.F-K4.b key comparison for 2 MN force
Ueda, Kazunaga,Bartel, Thomas W,Liok, Goh Hok,Hsin-Tse, Lee,Man, John,Park, Yon-Kyu,Wong, Seung-yin Springer-Verlag 2012 METROLOGIA -BERLIN- Vol.49 No.-
<P>This report gives the results of the APMP.M.F-K4.b key comparison in 2 MN force range. This regional key comparison was conducted under the Asia Pacific Metrology Program (APMP) to establish a link to the global CCM.F-K4.b key comparison.</P><P>Seven institutes participated in this key comparison. The National Metrology Institute of Japan (NMIJ/AIST) served as the pilot institute. The Korea Research Institute of Standards and Science (KRISS) and the National Institute of Standards and Technology (NIST) together with NMIJ/AIST provided links to the CCM.F-K4.b key comparison. A pair of force transducers having 2 MN nominal capacities was circulated among the participants in a star formation.</P><P>This regional key comparison revealed that all measurement results of the seven participants are coherent with the CCM.F-K4.b key comparison reference value within their uncertainties and that these participants are equivalent to each other.</P><P>Main text.To reach the main text of this paper, click on Final Report. Note that this text is that which appears in Appendix B of the BIPM key comparison database kcdb.bipm.org/.</P><P>The final report has been peer-reviewed and approved for publication by the CCM, according to the provisions of the CIPM Mutual Recognition Arrangement (CIPM MRA).</P>