System and method for objectively evaluating shoulder joint stability
a shoulder joint and stability technology, applied in the field of system and method for objective evaluation of shoulder joint stability, can solve the problems of poor shoulder stability, shoulder instability, and inability to keep his or her arm still, and achieve the effect of evaluating shoulder stability
Active Publication Date: 2018-12-13
ANDREADIS ANTHONY
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Provides objective evaluation of shoulder stability by quantifying the ability to counteract external forces, offering a reliable and standardized assessment of joint stability.
Problems solved by technology
Unfortunately, various ailments stemming from injury, overuse and natural aging as well as neurological disorders can cause shoulder instability.
Conversely, a person with poor shoulder stability will have difficulty controlling normal shoulder motion particularly against a resistive force, and may, for example, not be able to keep his or her arm still while extended for an appreciable amount of time, particularly while holding an object.
However, current medical practices utilized to evaluate shoulder stability are subjective and limited by the examiner's level of experience and technical expertise.
These tests have low inter-rater reliability and have no normative measures aside from the subject's feedback.
They can assess structural integrity, but do not measure stress on those structures.
Currently there is no way for a clinician to obtain objective data on a subject regarding the subject's shoulder stability.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0010]Referring to FIG. 2, a subject 110 being evaluated for shoulder stability, according to an exemplary embodiment, is illustrated. The subject 110 is fitted with an accelerometer 120 strapped to the subject's shoulder area 50. The accelerometer 120 is a three-axis accelerometer. The accelerometer 120 measures acceleration forces in terms of g-forces along each of the three axes, x, y and z, of three-dimensional space. The subject 110 is instructed to hold a vibrating device 150 in his or her hand while the arm 115 of the subject 110 is outstretched, as shown. The subject is instructed to keep his or her arm as still as possible while holding the vibrating device 150. Joint stability relates to the body's ability to counteract external physical forces. In general, the stronger the stabilizing muscles are, the better they can counteract external forces, such as the forces from the vibrating device 150 which will result in less g-forces measured by the accelerometer 120 along each ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The present disclosure relates to objective evaluation of shoulder stability. An accelerometer is attached adjacent the subject's shoulder and the subject is provided with a vibrating device that is held in the hand of the subject's outstretched arm. The subject is instructed to keep his or her arm as still as possible while holding the vibrating device. Data is obtained from the accelerometer over a predetermined length of time. Using a processor, preferably wirelessly connected to the accelerometer, shoulder stability is evaluated in relation to the subject's ability to resist vibratory forces. In an embodiment, the processor evaluates shoulder stability by averaging measured g-forces obtained from the accelerometer along three axes. The average g-forces across each axis are averaged together to give an overall average. The overall average is compared with available normative values to determine the risk level.
Description
BACKGROUND OF THE INVENTION1. Field of the Invention[0001]The present invention relates to a system and method for objectively evaluating shoulder joint stability.2. Description of the Related Art[0002]FIG. 1 illustrates the anatomy of the human shoulder 50. As shown, the human shoulder 50 connects the clavicle (collar bone) 10, scapula (shoulder blade) 20, and humerus 30 (upper arm). Although not depicted, it is to be understood that the shoulder further includes various associated muscles, ligaments and tendons. Further, the area around the clavicle 10, scapula 20, and humerus 30 includes a ball and socket joint known as the glenohumeral joint or shoulder joint, which is the main joint of the shoulder. The shoulder joint permits the arm to rotate or to move outwardly and vertically from the body.[0003]Unfortunately, various ailments stemming from injury, overuse and natural aging as well as neurological disorders can cause shoulder instability. A person with normal shoulder stabil...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(United States)
IPC IPC(8): A61B5/00A61B5/11G01P15/18
CPCA61B5/4576A61B5/4528A61B5/1121A61B5/0051A61B5/7271A61B2562/0219A61B5/002A61B5/0022A61B5/742G01P15/18
Inventor ANDREADIS, ELIZABETH
Owner ANDREADIS ANTHONY