A measurement technique is presented for recording positions of the bones of the shoulder mechanism, i.e., thorax, clavicula, scapula and humerus, in 3-D space, based on palpating and recording positions of bony landmarks. The palpation technique implies that only static positions can be measured. Accuracy of retrieving bony landmarks is checked on-line using rigid body assumptions. The measurement error is calculated afterwards and is comparable with cinegraphic methods. Axial rotation of the clavicula is estimated by minimizing rotations in the acromioclavicular joint. A number of motion definitions is compared by means of interindividual variation and subjective interpretability. Two useful definitions are proposed for describing motions of the shoulder mechanism. Four conditions have been recorded: abduction and anteflexion of the humerus both with and without additional weight in the hand. Abduction and anteflexion result in large differences in scapular and clavicular motions. The effect of additional weight in the hand on the position of the shoulder girdle is negligible.

1.
An
K-N.
,
Jacobsen
M. C.
,
Berglund
L. J.
, and
Chao
E. Y. S.
,
1988
, “
Application of a Magnetic Tracking Device to Kinesiologic Studies
,”
J. Biomechanics
, Vol.
21
(
7
), pp.
613
620
.
2.
An
K-N.
,
Browne
A. O.
,
Korinek
S.
,
Tanaka
S.
, and
Morrey
B. F.
,
1991
, “
Three-dimensional Kinematics of Glenohumeral Elevation
,”
J. Orthopaedic Res.
, Vol.
9
, pp.
143
149
.
3.
Bagg
S. D.
, and
Forrest
W. J.
,
1988
, “
A Biomechanical Analysis of Scapular Rotation During Arm Abduction in the Scapular Plane
,”
Am. J. Phys. Med. Rehab.
, Vol.
67
, pp.
238
245
.
4.
Browne
A. O.
,
An
K-N.
,
Tanaka
S.
, and
Morrey
B. F.
,
1990
, “
Glenohumeral Elevation Studied in Three Dimensions
,”
J. Bone Joint Surg.
, Vol.
72-B
(
5
), pp.
843
845
.
5.
Capozzo, A., Gazzani, F., and Macellari, V., 1988, “Skin Marker Artifacts in Gait Analysis,” Proc. 6th Meeting Eur. Soc. Biomech., C23.
6.
Casolo, F., Colnago, M., and Cosco, P. P., 1987, “A Technique for Dynamic Analysis of Joint Motion Using Bi-Planar Cineradiography, Preliminary Investigations on the Shoulder Complex,” In: Biomechanics XI-B, Groot, G. de, Hollander, A. P., Huijing, P., Ingen Schenau, G. J. van (eds.), Free University Press, Amsterdam, pp. 1062–1069.
7.
Conway
A. M.
,
1961
, “
Movements at the Sternoclavicular and Acromioclavicular Joints
,”
The Phys. Ther. Rev.
, Vol.
11
, pp.
421
432
.
8.
Doody
S. G.
,
Freeman
L.
, and
Waterland
J. C.
,
1970
a, “
Shoulder Movements During Abduction in the Scapular Plane
,”
Arch. Phys. Med. Rehab.
, Vol.
51
, pp.
595
604
.
9.
Doody
S. G.
,
Waterland
J. C.
, and
Freeman
L.
,
1970
b, “
Scapulohumeral Goniometer
,”
Arch. Phys. Med. Rehab.
, Vol.
51
, pp.
711
713
.
10.
Dvir
Z.
, and
Berme
N.
,
1978
, “
The Shoulder Complex in Elevation of the Arm: a Mechanism Approach
,”
J. Biomech.
, Vol.
11
, pp.
219
225
.
11.
Engin
A. E.
, and
Chen
S. M.
,
1986
, “
Statistical Data Base for the Biomechanical Properties of the Human Shoulder Complex—I: Kinematics of the Shoulder Complex
,”
ASME JOURNAL OF BIOMECHANICAL ENGINEERING
, Vol.
108
, pp.
215
221
.
12.
Engin
A. E.
, and
Chen
S. M.
,
1986
, “
Statistical Data Base for the Biomechanical Properties of the Human Shoulder Complex—II: Passive Properties Beyond the Shoulder Complex Sinus
,”
ASME JOURNAL OF BIOMECHANICAL ENGINEERING
, Vol.
108
, pp.
222
227
.
13.
Engin
A. E.
, and
Peindl
R. D.
,
1987
, “
On the Biomechanics of the Human Shoulder Complex—I. Kinematics for Determination of the Shoulder Complex Sinus
,”
J. Biomech.
, Vol.
20
, pp.
103
117
.
14.
Engin
A. E.
, and
Tu¨mer
S. T.
,
1989
, “
Three-dimensional Kinematic Modelling of the Human Shoulder Complex—Part I: Physical Model and Determination of Joint Sinus Cones
,”
ASME JOURNAL OF BIOMECHANICAL ENGINEERING
, Vol.
111
, pp.
107
112
.
15.
Freedman
L.
, and
Munro
R.
,
1966
, “
Abduction of the Arm in the Scapular Plane and Glenohumeral Movements
,”
J. Bone Joint Surg.
, Vol.
48-A
, pp.
1503
1510
.
16.
Harryman
D. T.
,
Sidles
J. A.
,
Clark
J. M.
,
McQuade
K. J.
,
Tyler
D. G.
, and
Matsen
F. A.
,
1990
, “
Translation of the Humeral Head on the Glenoid with Passive Glenohumeral Motion
,”
J. Bone Joint Surg.
, Vol.
72-A
(
9
), pp.
1334
1343
.
17.
Harryman
D. T.
,
Sidles
J. A.
,
Harris
S. L.
, and
Matsen
F. A.
,
1992
, “
Laxity of the Normal Glenohumeral Joint: A Quantitative in Vivo Assessment
,”
J. Shoulder Elbow Surg.
, Vol.
1
, pp.
66
76
.
18.
Hatze
H.
,
1988
, “
High-precision Three-dimensional Photogram-metric Calibration and Object Space Reconstruction Using a Modified DLT-Method
,”
J. Biomech.
, Vol.
21
(
7
), pp.
533
538
.
19.
Hogfors
C.
,
Peterson
B.
,
Sigholm
G.
, and
Herberts
P.
,
1991
, “
Biomechanical Model of the Human Shoulder Joint—II. The Shoulder Rhythm
,”
J. Biomech.
, Vol.
24
(
8
), pp.
699
709
.
20.
Hvorslev, C. M., 1927, “Studien Ueber die Bewegungen der Schulter,” Skand. Arch. f. Physiol., Separatabdruck.
21.
Inman
V. T.
,
Saunders
J. B.
, and
Abbott
L. C.
,
1944
, “
Observations on the Function of the Shoulder Joint
,”
J. Bone Joint Surg.
, Vol.
26-A
, pp.
1
30
.
22.
Inman
V. T.
, and
Saunders
J. B.
,
1946
, “
Observations on the Functions of the Clavicle
,”
Calif. Med.
, Vol.
65
, pp.
158
166
.
23.
Jenkins, G. M., and Watt, D. G., 1969, Spectral Analysis and its Applications, Holden-Day.
24.
Johnson, G. R., and Stuart, P. R., 1993, “Non-invasive Measurement of Scapula Position and its Use to Study the Resting Position in Normal and Painful Shoulders,” Proc. 14th Congr. Int. Soc. Biomechanics, Paris, pp. 646–647.
25.
Johnston
T. B.
,
1937
, “
The Movements of the Shoulder Joint. A Plea for the Use of the Plane of the Scapula as the Plane of Reference for Movements Occurring at the Humeroscapular Joint
,”
Brit. J. Surg.
, Vol.
30
, pp.
252
260
.
26.
Kennedy
J. C.
, and
Cameron
H.
,
1954
, “
Complete Dislocation of the Acromioclavicular Joint
,”
J. Bone Joint Surg.
, Vol.
36-B
, pp.
202
208
.
27.
Kondo, M., Tazoe, S., and Yamada, M., 1984, “Changes of the Tilting Angle of the Scapula Following Elevation of the Arm,” In: Surgery of the Shoulder, Bateman, J. E., Welsh, R. P. (Eds.), C. V. Mosby Co., London, pp. 12–16.
28.
Lange
A. de
,
Huiskes
R.
, and
Kauer
J. M. G.
,
1990
, “
Measurement Errors in Roentgen-stercophotogrammetric Joint-motion Analysis
,”
J. Biomech.
, Vol.
23
(
3
), pp.
259
269
.
29.
Ljung, L., 1987, “System Identification: Theory for the User,” Prentice Hall, Englewood Cliffs, NJ.
30.
Pearl
M. L.
,
Harris
S.
,
Lippell
S. B.
,
Sidles
J. A.
,
Harryman
D. I.
, and
Matsen
F. A.
,
1992
, “
A System for Describing Positions of the Humerus Relative to the Thorax and its Use in the Presentation of Several Functionally Important Arm Positions
,”
J. Shoulder Elbow Surg.
, Vol.
1
(
2
), pp.
113
118
.
31.
Pennock
G. R.
, and
Clark
K. J.
,
1990
, “
An Anatomy-based Coordinate System for the Description of the Kinematic Displacements in the Human Knee
,”
J. Biomech.
, Vol.
23
(
12
), pp.
1209
1218
.
32.
Peterson, B., Hogfors, C., Herberts, P., Selvik, G., and Sigholm, G., 1985, “The Shoulder Rhythm,” Abstract Book 10th Congr. Int. Soc. Biomech., Umea.
33.
Poppen
N. K.
, and
Walker
P. S.
,
1976
, “
Normal and Abnormal Motion of the Shoulder
,”
J. Bone Joint Surg.
, Vol.
58-A
, pp.
195
200
.
34.
Poppen
N. K.
, and
Walker
P. S.
,
1978
, “
Forces at the Glenohumeral Joint in Abduction
,”
Clin. Orthop. Rel. Res.
, Vol.
135
, pp.
165
170
.
35.
Pronk, G. M., 1984, “The Biomechanical Definition of the Motions of the Shoulder Girdle Bones,” Rep. N-231, Lab. WBMR, Delft Univ. of Technology, The Netherlands.
36.
Pronk, G. M., 1987, “Three-dimensional Determination of the Position of the Shoulder Girdle during Humerus Elevation,” Biomech. XI-B, Proc. 11th Congr. Int. Soc. Biomech., Groot G. de, Hollander, A. P., Huijing, P. A., Ingen Schenau, G. J. van (Eds.), Amsterdam, pp. 1070–1076.
37.
Pronk, G. M., 1991, “The Shoulder Girdle: Analyzed and Modelled Kinematically,” Doctoral thesis, Delft Univ. of Technology, The Netherlands.
38.
Pronk, G. M., and Padt, A. van der, 1986, “The Modelling of the Scapulothoracic Wall,” Rep., N-245, Lab. WBMR, Delft Univ. of Technology, The Netherlands.
39.
Pronk
G. M.
, and
Van der Helm
F. C. T.
,
1991
, “
The Palpator: an Instrument for Measuring the Positions of Bones in Three Dimensions
,”
J. Med. Eng. Techn.
, Vol.
15
(
1
), pp.
15
20
.
40.
Rockwood, C. A., 1975, “Dislocations About the Shoulder,” In: Fractures, Vol. 1, Rockwood, C. A., Green, D. P. (Eds.), Lippincott Co., Philadelphia, pp. 624–787.
41.
Saha, A. K., 1961, Theory of Shoulder Mechanism: Descriptive and Applied, Charles C Thomas, Springfield.
42.
Selvik
G.
,
1989
, “
A Roentgenstereophotogrammetric Method for the Study of the Kinematics of the Skeletal System
,”
Acta Orthop. Scand.
(Suppl.), Vol.
60
, pp.
1
51
.
43.
Steinhausen, 1899, “Beitra¨ge zur Lehre von dem Mechanismus der Bewegungen des Schultergu¨rtels,” Arch. Anat. Physiol., Physiol. Abt. Suppl., pp. 403–430.
44.
Tu¨mer
S. T.
, and
Engin
A. E.
,
1989
, “
Three-dimensional Kinematic Modelling of the Human Shoulder Complex—Part II: Mathematical Modelling and Solution via Optimization
,”
ASME JOURNAL OF BIOMECHANICAL ENGINEERING
, Vol.
111
, pp.
113
121
.
45.
Van der Helm
F. C. T.
,
1994
, “
A Finite Element Musculoskeletal Model of the Shoulder Mechanism
,”
J. Biomechanics
, Vol.
27
(
5
), pp.
527
550
.
46.
Van der Helm
F. C. T.
,
1994
, “
Analysis of the Kinematic and Dynamic Behavior of the Shoulder Mechanism
,”
J. Biomechanics
, Vol.
27
(
5
), pp.
551
569
.
47.
Wallace, W. A., 1982, “The Dynamic Study of Shoulder Movement,” In: Shoulder Surgery, Bailey, I., Kessel, L. (Eds.), Springer-Verlag, Berlin, pp. 139–143.
48.
Wallace, W. A., and Johnson, F., 1982, “A Biomechanical Appraisal of the Acromioclavicular Joint,” In: Shoulder Surgery, Bailey, I., Kessel, L. (Eds.), Springer-Verlag, Berlin, pp. 179–182.
49.
Weeren
P. R. van
,
Bogert
A. J. van
, and
Barneveld
A.
,
1988
, “
Quantification of Skin Displacement Near the Carpal, Tarsal and Fetlock Joints of the Walking Horse
,”
Equine Vet. J.
, Vol.
20
(
3
), pp.
203
208
.
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