Elbow Analysis
A computer kinematic assessment is performed for elbow flexion/extension, and
forearm supination/pronation. The Examinee is asked to perform each maneuver
8-10 repetitions to full range and as quickly as possible. The events are video
taped in a precisely calibrated field for computer analysis. Each event is
analyzed for total dynamic range of motion and peak velocity quantity and
quality. Consistency of results [coefficient of variation] is considered for
determining Examinee effort. After a thorough discussion of expectations, and
agreement of understanding by the Examinee, the Examinee is asked to perform the
movement events.
Preparation
- APAS - CAPDV;
- Chair
- DV Camcorder with firewire connection to the data collection computer;
- Calibration frame.
 |
 |
| Large frame |
Small frame |
Room Setup
- Clear the working area of any obstructions that may block the camera
views.
- Place a reflective marker (fixed point) anywhere in the view where the
Examinee or Assistant/Examiner will not block it during motion.
Camera Setup
- Look through the viewfinder, make sure you can see the entire frame - plus
enough space surrounding frame - to film the entire sequence.
- Set focus to auto focus then back to manual focus.
- Set shutter speed at 1/250 s.
[ Last revised on 01/12/2004 ]
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Examples |
|
Description |
| Markers |
 |
Three markers |
| # |
Left |
Right |
Description |
| 1. |
L.SHOULDER |
R.SHOULDER |
Shoulder |
| 2. |
L.ELBOW |
R.ELBOW |
Elbow |
| 3. |
L.WRIST |
R.WRIST |
Wrist |
|
| Calibration |
 |
Large calibration frame |
Check computer screen and recheck the position of the cube, the cameras, and
the fixed point.
Capture data for 0.5 s.
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| Protocol |
 |
 |
Make sure Examinee is in center of view field. The Examinee must be aligned in the
field of the front portion of the calibration cube. If acceptable, proceed with
data collection.
Capture data for 25 s.
|
| |
Elbow Flexion |
Elbow Extension |
[ View typical results ] |
| |
Examples |
|
Description |
| Markers |
 |
Two markers |
| # |
Left |
Right |
Description |
| 1. |
L.RADIAL |
R.RADIAL |
Wand - radial marker |
| 2. |
L.ULNAR |
R.ULNAR |
Wand - ulnar marker |
|
| Calibration |
 |
Small calibration cube |
Check computer screen and recheck the position of the cube, the cameras, and
the fixed point.
Capture data for 0.5 s.
|
| Protocol |
|
 |
Make sure Examinee is in center of view field. The Examinee must be aligned in the
field of the front portion of the calibration cube. If acceptable, proceed with
data collection.
Capture data for 25 s.
|
| |
XYZ |
XUZ |
[ View typical results ] |
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Picture 18:
LeftElbow Flexion -
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Picture 19:
LeftElbow Extension -
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Picture 20:
RightElbow Flexion -
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Picture 21:
RightElbow Extension -
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Chart 7:
Elbow Flexion/Extension
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Table 7:
Elbow Flexion/Extension (F/E)
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Summary 6:
Kinematic Elbow Assessment
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See also
- Number of tests where Examinee performed subnormal:
2
of
4
- Number of tests where Examinee performed asymmetrically (one side worse than the other):
2
of
4
- Number of tests where Examinee performed worse on Left Side than on Right Side:
1
of
2
- Number of tests where Examinee performed worse on Right Side than on Left Side:
1
of
2
Significant Findings Kinematic Elbow Assessment:
