| Autor: |
Akira Sugi, MD, Keisuke Matsuki, MD, PhD, Ryunosuke Fukushi, MD, Takeshi Shimoto, PhD, Toshiaki Hirose, MD, PhD, Yuji Shibayama, MD, PhD, Naoya Nishinaka, MD, PhD, Kousuke Iba, MD, PhD, Toshihiko Yamashita, MD, PhD, Scott A. Banks, PhD |
| Jazyk: |
angličtina |
| Rok vydání: |
2021 |
| Předmět: |
|
| Zdroj: |
JSES International, Vol 5, Iss 6, Pp 1001-1007 (2021) |
| Druh dokumentu: |
article |
| ISSN: |
2666-6383 |
| DOI: |
10.1016/j.jseint.2021.07.005 |
| Popis: |
Background: It is often assumed that body posture, standing vs. supine, changes shoulder muscle activation and range of motion, but these altered shoulder mechanics have not been objectively assessed. We expected the supine posture might facilitate scapular rotation and change subacromial pressure. The purpose of this study is to evaluate the influence of body posture on shoulder kinematics during arm elevation. Methods: Ten males and eight females with a mean age of 33 years participated in this study. Shoulder kinematics were assessed during scapular plane elevation in the standing and supine postures by using single-plane fluoroscopic images. Kinematics were measured using 3-dimensional to 2-dimensional model-image registration techniques: matching the 3-dimensional bone model derived from computed tomography onto each fluoroscopic image. Glenohumeral superior/inferior translation, acromiohumeral distance, and scapular rotations were compared between the postures. The effect of sex also was evaluated. Results: With the arm at the side position, the humeral head in the supine posture was located 0.5 mm superior compared to the standing posture (P |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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