Biomechanical analysis of axial distraction mobilization of the glenohumeral joint - A cadaver study

Ar Tyan Hsu, Jing Fang Chiu, Jia-Hao Chang

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

The axial distraction mobilization techniques are frequently employed for treating patients with joint hypomobility. However, there is a lack of basic biomechanical studies and description of this procedure. The purpose of this study was to analyze humeral head displacement while performing an axial distraction mobilization of the glenohumeral joint. Twelve experienced orthopedic physical therapists participated. Distraction mobilization techniques were performed in three different positions of glenohumeral abduction on a fresh cadaveric specimen. Outcome measures were displacements of the humeral head center during distraction mobilization. Result indicated that displacement of the humeral head was largest in the resting position (27.38 mm) followed by the neutral (22.01 mm) and the end range position (9.34 mm). There were significant differences for both the displacement of the humeral head (p < 0.002) and the distraction forces used (p < 0.015) among the three joint positions. Greater gain in mobility was obtained in distraction at the end range position. In conclusion, during distraction mobilization, the force applied by the therapist and displacement of the humeral head depends on the joint position tested. Our results also provide rationales for choosing end range distraction mobilization for improving joint mobility.

Original languageEnglish
Pages (from-to)381-386
Number of pages6
JournalManual Therapy
Volume14
Issue number4
DOIs
Publication statusPublished - 2009 Aug 1

Fingerprint

Humeral Head
Shoulder Joint
Cadaver
Joints
Physical Therapists
Orthopedics
Outcome Assessment (Health Care)

Keywords

  • Distraction
  • Mobility
  • Mobilization
  • Shoulder

ASJC Scopus subject areas

  • Physical Therapy, Sports Therapy and Rehabilitation

Cite this

Biomechanical analysis of axial distraction mobilization of the glenohumeral joint - A cadaver study. / Hsu, Ar Tyan; Chiu, Jing Fang; Chang, Jia-Hao.

In: Manual Therapy, Vol. 14, No. 4, 01.08.2009, p. 381-386.

Research output: Contribution to journalArticle

@article{8ec2c5bf9ac9459e805212b60181c1e1,
title = "Biomechanical analysis of axial distraction mobilization of the glenohumeral joint - A cadaver study",
abstract = "The axial distraction mobilization techniques are frequently employed for treating patients with joint hypomobility. However, there is a lack of basic biomechanical studies and description of this procedure. The purpose of this study was to analyze humeral head displacement while performing an axial distraction mobilization of the glenohumeral joint. Twelve experienced orthopedic physical therapists participated. Distraction mobilization techniques were performed in three different positions of glenohumeral abduction on a fresh cadaveric specimen. Outcome measures were displacements of the humeral head center during distraction mobilization. Result indicated that displacement of the humeral head was largest in the resting position (27.38 mm) followed by the neutral (22.01 mm) and the end range position (9.34 mm). There were significant differences for both the displacement of the humeral head (p < 0.002) and the distraction forces used (p < 0.015) among the three joint positions. Greater gain in mobility was obtained in distraction at the end range position. In conclusion, during distraction mobilization, the force applied by the therapist and displacement of the humeral head depends on the joint position tested. Our results also provide rationales for choosing end range distraction mobilization for improving joint mobility.",
keywords = "Distraction, Mobility, Mobilization, Shoulder",
author = "Hsu, {Ar Tyan} and Chiu, {Jing Fang} and Jia-Hao Chang",
year = "2009",
month = "8",
day = "1",
doi = "10.1016/j.math.2008.06.003",
language = "English",
volume = "14",
pages = "381--386",
journal = "Musculoskeletal Science and Practice",
issn = "2468-8630",
publisher = "Elsevier BV",
number = "4",

}

TY - JOUR

T1 - Biomechanical analysis of axial distraction mobilization of the glenohumeral joint - A cadaver study

AU - Hsu, Ar Tyan

AU - Chiu, Jing Fang

AU - Chang, Jia-Hao

PY - 2009/8/1

Y1 - 2009/8/1

N2 - The axial distraction mobilization techniques are frequently employed for treating patients with joint hypomobility. However, there is a lack of basic biomechanical studies and description of this procedure. The purpose of this study was to analyze humeral head displacement while performing an axial distraction mobilization of the glenohumeral joint. Twelve experienced orthopedic physical therapists participated. Distraction mobilization techniques were performed in three different positions of glenohumeral abduction on a fresh cadaveric specimen. Outcome measures were displacements of the humeral head center during distraction mobilization. Result indicated that displacement of the humeral head was largest in the resting position (27.38 mm) followed by the neutral (22.01 mm) and the end range position (9.34 mm). There were significant differences for both the displacement of the humeral head (p < 0.002) and the distraction forces used (p < 0.015) among the three joint positions. Greater gain in mobility was obtained in distraction at the end range position. In conclusion, during distraction mobilization, the force applied by the therapist and displacement of the humeral head depends on the joint position tested. Our results also provide rationales for choosing end range distraction mobilization for improving joint mobility.

AB - The axial distraction mobilization techniques are frequently employed for treating patients with joint hypomobility. However, there is a lack of basic biomechanical studies and description of this procedure. The purpose of this study was to analyze humeral head displacement while performing an axial distraction mobilization of the glenohumeral joint. Twelve experienced orthopedic physical therapists participated. Distraction mobilization techniques were performed in three different positions of glenohumeral abduction on a fresh cadaveric specimen. Outcome measures were displacements of the humeral head center during distraction mobilization. Result indicated that displacement of the humeral head was largest in the resting position (27.38 mm) followed by the neutral (22.01 mm) and the end range position (9.34 mm). There were significant differences for both the displacement of the humeral head (p < 0.002) and the distraction forces used (p < 0.015) among the three joint positions. Greater gain in mobility was obtained in distraction at the end range position. In conclusion, during distraction mobilization, the force applied by the therapist and displacement of the humeral head depends on the joint position tested. Our results also provide rationales for choosing end range distraction mobilization for improving joint mobility.

KW - Distraction

KW - Mobility

KW - Mobilization

KW - Shoulder

UR - http://www.scopus.com/inward/record.url?scp=67349235556&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67349235556&partnerID=8YFLogxK

U2 - 10.1016/j.math.2008.06.003

DO - 10.1016/j.math.2008.06.003

M3 - Article

C2 - 18805038

AN - SCOPUS:67349235556

VL - 14

SP - 381

EP - 386

JO - Musculoskeletal Science and Practice

JF - Musculoskeletal Science and Practice

SN - 2468-8630

IS - 4

ER -