Device and method for evaluating cervical spine proprioception
A device and a method for evaluating cervical spine proprioception are provided. The method includes: taking a first head movement under a movement posture as a reference, calculating angle differences between multiple head movements under the same movement posture and the first head movement, and averaging the angle differences to obtain an average angle difference; then operating a data terminal to calculate average angle differences under multiple movement postures, and averaging the average angle differences to obtain a resultant average angle difference; comparing the resultant average angle difference with a standard value, thereby evaluating cervical spine proprioception of the subject based on a difference between the resultant average angle difference and the standard value. The disclosure can accurately evaluate position errors of a cervical spine under different postures, thereby avoiding errors caused by manual measurement.
1 . A method for evaluating cervical spine proprioception, comprising:
step 1, wearing a forehead band ( 1 ) on a head of a subject, to locate a posture detection part ( 4 ) at an inner side of the forehead band ( 1 ) and on a forehead of the subject, and make an eye mask ( 5 ) on the forehead band ( 1 ) cover eyes of the subject, wherein the posture detection part ( 4 ) comprises a posture sensor, and the posture sensor is configured for connecting to a data terminal ( 9 ) in a wired or wireless manner;
step 2, starting, by an operator, the data terminal ( 9 ) to connect the data terminal ( 9 ) to the posture detection part ( 4 ), wherein the data terminal ( 9 ) is a computer or a mobile phone;
step 3, performing, by the subject, one head movement under a target movement posture at prompt of the detector operator;
step 4, operating, by the operator, the data terminal ( 9 ) to record an angle value of the one head movement under the target movement posture from the posture detection part ( 4 ); performing, by the subject, at least one head movement under the target movement posture under prompt of the operator, to thereby complete a plurality of head movements under the target movement posture, wherein the plurality of head movements under the target movement posture includes the one head movement under the target movement posture and the at least one head movement under the target movement posture, a total number of the plurality of head movements under the target movement posture is at least two; and operating, by the operator, the data terminal ( 9 ) to record an angle value of each of the at least one head movements under the target movement posture from the posture detection part ( 4 );
step 5, changing, by the subject, the target movement posture, and repeating the step 3 and the step 4 to complete a plurality of target movement postures, wherein the plurality of target movement postures comprise at least two of a forward flexion posture, a backward extension posture, a left rotation posture, a right rotation posture, a left flexion posture, or a right flexion posture;
step 6, operating, by the operator, the data terminal ( 9 ), thereby, taking, by the data terminal ( 9 ), the one head movement performed in the step 3 under each target movement posture of the plurality of target movement postures as a reference, calculate an angle difference between each of the plurality of head movements under each target movement posture of the plurality of target movement postures and the one head movement performed in the step 3 under each target movement posture of the plurality of target movement postures to thereby obtain angle differences under each target movement posture of the plurality of target movement postures, and averaging, by the data terminal ( 9 ), the angle differences to obtain an average angle difference under each target movement posture of the plurality of target movement postures; wherein a formula for averaging the angle differences is as follows:
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where a represents the average angle difference under each target movement posture of the plurality of target movement postures, n represents the total number of the plurality of head movements under the target movement posture, and θ represents an angle value measured by the posture detection part ( 4 );
step 7, operating, by the operator, the data terminal ( 9 ) to calculate a resultant average angle difference under the plurality of movement postures; wherein a formula for calculating the resultant average angle difference is as follows:
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where y represents the resultant average angle difference, p represents a total number of the plurality of movement postures, a 1 represents an average angle difference under a first target movement posture of the plurality of target movement postures, a 2 represents an average angle difference under a second target movement posture of the plurality of target movement postures, and a p represents an average angle difference under a p-th target movement posture of the plurality of target movement postures; and
step 8, operating, by the operator, the data terminal ( 9 ), thereby, comparing, by the data terminal ( 9 ), the resultant average angle difference with a standard value, and evaluating, by the data terminal ( 9 ), cervical spine proprioception of the subject based on a difference between the resultant average angle difference and the standard value.
2 . The method for evaluating cervical spine proprioception as claimed in claim 1 , wherein a calculation program is installed on the data terminal ( 9 ) and is configured for processing calculation of the formulas in the step 6 and the step 7.
3 . A device for evaluating cervical spine proprioception, comprising:
a forehead band ( 1 ) configured to be sleeved on a head of a subject, an eye mask ( 5 ) configured to cover eyes of the subject, a cloth bag ( 2 ), a posture detection part ( 4 ) configured to measure angle values of head movements of the subject, and an elastic block ( 3 ) configured to provide a pre-tightening force to tighten the forehead band ( 1 ), wherein the posture detection part ( 4 ) comprises a three-axis sensor;
wherein the cloth bag ( 2 ) is fixedly disposed on an inner side of the forehead band ( 1 ), the eye mask ( 5 ) is disposed on an outer surface of the cloth bag ( 2 ), the cloth bag ( 2 ) is located between the eye mask ( 5 ) and the forehead band ( 1 ), the elastic block ( 3 ) is disposed in the cloth bag ( 2 ), and the posture detection part ( 4 ) is disposed in the elastic block ( 3 ).
4 . The device for evaluating cervical spine proprioception as claimed in claim 3 , wherein the elastic block ( 3 ) is curved in shape.
5 . The device for evaluating cervical spine proprioception as claimed in claim 3 , wherein a covering part ( 51 ) of the eye mask ( 5 ) is disposed below the forehead band ( 1 ).
6 . The device for evaluating cervical spine proprioception as claimed in claim 5 , wherein two sides of the covering part ( 51 ) of the eye mask ( 5 ) are connected to two ends of an elastic band ( 6 ).
7 . The device for evaluating cervical spine proprioception as claimed in claim 6 , wherein the elastic band ( 6 ) is provided with a first buckle ( 7 ).
8 . The device for evaluating cervical spine proprioception as claimed in claim 3 , wherein the forehead band ( 1 ) is provided with a second buckle ( 8 ).