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akfce.elbow

Page
Published on Thursday, September 4, 1997 by Gideon Ariel

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 ]

Elbow Flexion/Extension

  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.

 

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 ]

Forearm Supination/Pronation

  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 ]

Typical Results

Picture 18: LeftElbow Flexion -
Picture 19: LeftElbow Extension -
Picture 20: RightElbow Flexion -
Picture 21: RightElbow Extension -
Chart 7: Elbow Flexion/Extension
Table 7: Elbow Flexion/Extension (F/E)
Range of Motion
[degrees]
F+
Left
E-
Left
F+
Right
E-
Right
Norm (mean) 140 0 140 0
Examinee Sample (mean) 152.7 50.6 146.7 10.6
Standard Deviation (sd) 5.13 4.7 3.42 1.66
Range of Motion (rom) 102.1 102.1 136.2 136.2
Trial Consistency (sd/rom) 5% 4.6% 2.5% 1.2%
Degrees of Freedom (df) 9 8 8 8
H0: Examinee = Norm Accept Reject Accept Reject
Probability (p0) 0.00001 0.00000 0.00018 0.00000
Level of Confidence 99% 99% 99% 99%
H1: Side = Opposing Side Accept Reject Reject Accept
Probability (p1) 0.00459 0.00000 0.00459 0.00000
Summary 6: Kinematic Elbow Assessment
description side norm mean sd rom cons df0 h0 p0 conf h1 p1
Elbow Flexion Left 140 152.7 5.13 102.1 5% 9 Accept 0.00001 99% Accept 0.00459
Elbow Extension Left 0 50.6 4.7 102.1 4.6% 8 Reject 0.00000 99% Reject 0.00000
Elbow Flexion Right 140 146.7 3.42 136.2 2.5% 8 Accept 0.00018 99% Reject 0.00459
Elbow Extension Right 0 10.6 1.66 136.2 1.2% 8 Reject 0.00000 99% Accept 0.00000

See also

akfceFunctional Capacity Evaluation
akfce.caseCase Information
akfce.cervicalCervical Assessment
akfce.elbowElbow Analysis
akfce.emgEMG Protocol
akfce.evalEvaluation
akfce.fceFunctional Capacity Evaluation
akfce.finger.indexFinger Analysis
akfce.finger.thumbThumb Analysis
akfce.gaitGait Analysis
akfce.gripGrip Settings
akfce.interviewExaminee Interview
akfce.jobJob description
akfce.shoulderShoulder Analysis
akfce.strengthStrength Protocol
akfce.wristWrist Analysis
gaitData collection protocols for gait analysis
sportsData collection protocols for sports
Wizard windowQuestions and answers

  • 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:

Reference: /wizard/manual/protocols/akfce.elbow.html
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