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kinematic_model [2023/08/07 00:04] – [Accuracy] oliver | kinematic_model [2023/08/07 00:05] (current) – [Classical SHR ratio] oliver | ||
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Typically the SHR is given as the ratio of the glenohumeral abduction angle and the scapula medio-lateral rotation angle during humeral abduction movements (movement mainly in frontal or scapula plane). In many publications, | Typically the SHR is given as the ratio of the glenohumeral abduction angle and the scapula medio-lateral rotation angle during humeral abduction movements (movement mainly in frontal or scapula plane). In many publications, | ||
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Typically the SHR ratio is presented as a function of the humeral elevation. | Typically the SHR ratio is presented as a function of the humeral elevation. | ||
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elevation. | elevation. | ||
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This is a different measure, which results in different numerical values, for the so called SHR ratio but it is robust against angle-offsets. A numerical feature of this definition is, that it can be implemented a way that the measure does not depend on the rotation order of the cardan angles. | This is a different measure, which results in different numerical values, for the so called SHR ratio but it is robust against angle-offsets. A numerical feature of this definition is, that it can be implemented a way that the measure does not depend on the rotation order of the cardan angles. |