CN106491088B - A kind of balanced ability of human body appraisal procedure based on smart phone - Google Patents
A kind of balanced ability of human body appraisal procedure based on smart phone Download PDFInfo
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- CN106491088B CN106491088B CN201610970861.1A CN201610970861A CN106491088B CN 106491088 B CN106491088 B CN 106491088B CN 201610970861 A CN201610970861 A CN 201610970861A CN 106491088 B CN106491088 B CN 106491088B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/40—Detecting, measuring or recording for evaluating the nervous system
- A61B5/4005—Detecting, measuring or recording for evaluating the nervous system for evaluating the sensory system
- A61B5/4023—Evaluating sense of balance
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
- A61B5/6887—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient mounted on external non-worn devices, e.g. non-medical devices
- A61B5/6898—Portable consumer electronic devices, e.g. music players, telephones, tablet computers
Abstract
The invention belongs to medical instruments fields, are related to a kind of balanced ability of human body appraisal procedure based on smart phone, comprising the following steps: A, sample data acquisition and storage；B, balanced ability of human body evaluation criterion is established；C, user information input and preservation；D, centre-of-gravity path is shown；E, balanced capacity assessment and the preservation of user's performance information, and then assessment report is generated according to personal essential information and balanced ability of human body achievement.The present invention does not have to specially buy special balanced capacity test equipment, the assessment of balanced capacity can be completed using public common smart phone and invention is not influenced by time, steric requirements, it is balanced the test of ability at any time, it is easy to promote, long term monitoring can be carried out to the balanced capacity of oneself.
Description
Technical field
The invention belongs to the field of medical instrument technology, are related to a kind of balanced ability of human body appraisal procedure, in particular to a kind of
Balanced ability of human body appraisal procedure based on smart phone.
Background technique
Balanced capacity is one kind of physical fitness, refers to the ability for maintaining body gesture, especially on lesser supporting surface, control
The ability of centre of body weight processed.Balanced capacity is all static base powers with dynamic moving, all the time by the pass of people
Note, but can not fast and effeciently carry out objective evaluation at any time under conventional environment.Currently used balance performance monitor is main
There are Balance Performance Monitor (BPM), Balance Master, Equitest etc., wherein both rear price mistake
Height is difficult clinically to promote, unlikely be received by general public.BPM moderate cost can be applied in clinic, former
Reason is that people stands on monitor station, and pressure sensor generates pressure signal, each seed ginseng changed by computer to gravity center of human body
Number is analyzed, and balanced ability of human body is evaluated, and be will test result and graphically shown to user.Since required sets
Standby such as monitor station, computer is still more, for general public or needs to buy whole specialized equipment or can only arrive
Specified hospital goes to be assessed, these all significantly limit its use scope, causes masses that can not assess whenever and wherever possible certainly
Oneself balanced capacity.In the modern life, smart phone has become public universal portable means of communication.Meanwhile core
The arithmetic speed of processor is constantly speeded to be integrated with a large amount of of sensor, so that the application program based on smart phone is constantly gushed
It is existing, it is no longer limited to amusement and social activity, but expands to the every aspect of life.Based on this, as can developing a kind of based on intelligence
The balanced ability of human body appraisal procedure of energy mobile phone, and then realize and oneself balanced capacity is assessed by mobile phone whenever and wherever possible,
More preferably monitoring method will be provided for the improvement of balanced ability of human body.
Summary of the invention
The balanced ability of human body appraisal procedure based on smart phone that in view of the deficiencies of the prior art, the present invention provides a kind of,
Usable family is not influenced by spatio-temporal, carries out the assessment of Equilibrium ability at any time.
The purpose of the present invention is what is be achieved through the following technical solutions, as follows now in conjunction with Detailed description of the invention: one kind is based on intelligence
The balanced ability of human body appraisal procedure of mobile phone, comprising the following steps:
A, the Data acquisition and storage of sample is carried out in data acquisition module: utilizing built-in acceleration sensor in mobile phone
And attitude angle transducer, the sensor access interface provided by mobile phone operating system obtain testee's mobile phone and accelerate in real time
Degree and attitude angle data, and it is subjected to real-time display with the testing time, while all data of this testee being stored in
In mobile phone；
B, it establishes balanced ability of human body evaluation criterion: first being maintained in motion process by n testee of step A random acquisition
Every initial data be stored in mobile phone, formed n sample data；Each sample data is handled again, is obtained every former
Beginning index and its correlation matrix therefrom choose the m item index that there is correlation to be greater than 0.5, test statistics and Bartlett
Sphericity examine together rate Sig judge whether to be appropriate for factorial analysis；If it is determined that being suitble to, then factorial analysis is carried out, is mentioned
The k factor is taken out, while using the weight of the coefficient matrix of the factor itself and the factor as standards of grading；If it is not, then weighing
It is new to choose original index, until it meets the condition of progress factorial analysis；
C, in user setting module carry out user information input and save: according to user input name, gender and
Mobile phone current time dynamically initializes menu；After detecting that user executes the stored operation of guarantor, transmit data to
Balanced capacity evaluation module saves；
D, centre-of-gravity path is shown in Posturography display module: first initializing radar Background and line chart back
Jing Tu, and set the coordinate value (x of gravity center of human body when testing original state0, y0, z0)；Again by attitude angle transducer obtain mobile phone around
The angle of the three axis rotation of xyz coordinate system, and spin matrix is calculated according to three goniometers；It is sat by spin matrix and gravity center of human body
Scale value obtains any time gravity center of human body in testing coordinate value (x, y) in the horizontal direction and gravity center of human body vertical
Height (z) on direction；The projection of center of gravity in the horizontal plane is drawn on radar Background respectively, is drawn on broken line Background
The variation of height of C.G., to completely show centre-of-gravity path；By user's items real time data and it is final maintain balance when
Between be transferred to balanced capacity evaluation module；E, balanced capacity assessment and user's performance information are realized in balanced capacity evaluation module
Preservation: call user setting module save personal essential information and Posturography display module obtain each item number of user
According to, obtain the m item original index of tested person, according in standards of grading coefficient matrix and each Factor Weight obtain total balance of the body
Ability achievement is realized the assessment of user equilibrium ability, and then is commented according to personal essential information and the generation of balanced ability of human body achievement
Estimate report.
In step A, the data are stored by multiple row, and first is classified as the testing time, other to be classified as related physical quantity.
Step B, the items original index is respectively X-axis acceleration average value, Y-axis acceleration average value, Z axis acceleration
Average value, orientation mean angular deviation, pitching mean angular deviation, overturning mean angular deviation and SVM average value.
The SVM is acceleration amplitude, is defined as follows, wherein ax, ay, azIndicate x, y, the acceleration in the direction z:
Step B, the condition of the judgement are as follows: KMO>0.6 and Sig<0.05.
Step D, it is and mobile phone and human body using human body both feet center as coordinate origin that gravity center of human body's coordinate value, which is set,
Coordinate system is identical.
Step D, the calculating process of the spin matrix are as follows:
When around z-axis rotation, z-axis spin matrix are as follows:
In formula: α is current time azimuth and the azimuthal difference of initial time；
When around x-axis rotation, x-axis spin matrix are as follows:
In formula: β is the difference of current time pitch angle and initial time pitch angle,
When around y-axis rotation, y-axis spin matrix are as follows:
In formula: θ is the difference of current time roll angle and initial time roll angle,
Then spin matrix are as follows: MXYZ=MXMYMZ(5)。
Step D, the height of coordinate value (x, y) and gravity center of human body in the vertical direction of the gravity center of human body in the horizontal direction
Spend the calculation formula of (z) are as follows:
Step E, the balanced ability of human body achievement are calculated by following steps:
E1. the m item original index of tested person is standardized, indicates flat since numerical value is bigger in this m index
Weighing apparatus ability is poorer, therefore it standardizes formula are as follows:
Wherein xnFor n-th original index of tested person, μ is the mean value of n-th all sample data of original index, σ n-th
The standard deviation of item all sample datas of original index；
E2. the standardized value of each index coefficient corresponding with its index (being provided by coefficient matrix) is multiplied, then is added to obtain
Each factor score fi, it may be assumed that
Wherein uniFor the coefficient of i-th of factor corresponding to n-th original index, m original index are shared；
E3. it according to Factor Weight, is weighted and summarizes, it may be assumed that
Wherein Si% is the weight of i-th of factor；
After obtaining the comprehensive score f of user, carries out hundred-mark system numerical value conversion and obtain user's achievement, the i.e. synthesis of balanced capacity
Score.
Compared with prior art, the invention has the benefit that 1. compared with existing balance performance monitor, the present invention is first not
With special balanced capacity test equipment is specially bought, commenting for balanced capacity can be completed using public common smart phone
Estimate；2. the present invention is not influenced by time, steric requirements, it is balanced the test of ability at any time, is easy to promote, it can be to oneself
Balanced capacity carry out long term monitoring.
Detailed description of the invention
Fig. 1 is the specifically used mode figure of user of the present invention；
Fig. 2 is the user equilibrium capability evaluation flow chart of the embodiment of the present invention；
The system function module figure of Fig. 3 embodiment of the present invention.
Specific embodiment
The specific embodiment that the invention will now be described in detail with reference to the accompanying drawings.
When implementing balanced ability of human body appraisal procedure of the present invention, operator tests posture and sees attached drawing 1.Human body test when,
It stands on one leg, another foot lifts, and vertically downward, another hand rest lives smart phone to a hand, makes mobile phone and gravity center of human body position
It sets in sustained height, and mobile phone screen is vertical with human body vertical direction, keeps the two relative position constant during the test.
Specific implementation process of the invention using Android Studio1.4 as shown in Fig. 2, developed.Its internal system
Functional block diagram is as shown in figure 3, include data acquisition module, Posturography display module, balanced capacity evaluation module and use
Family setup module.
A kind of balanced ability of human body appraisal procedure based on smart phone, comprising the following steps:
A, the acquisition and preservation of sample data are carried out in data acquisition module: firstly, using acceleration built-in in mobile phone
Sensor, attitude angle transducer are spent, the real-time acceleration of mobile phone, appearance are obtained by SensorEventListener interface method
State angular data utilizes the public method read test time of Date class；Recycle TextView class public method acceleration degree
Real-time display is carried out according to, attitude angle data and testing time, while using internal storage by this testee's
All data are stored in mobile phone with TXT file.Data are stored by multiple row, and first is classified as the testing time, other to be classified as correlative
Reason amount.
B, utilize computer software SPSS (SPSS is the software product for statistical analysis operation that IBM Corporation releases)
Data analysis is carried out, the standards of grading of balanced ability of human body are established:
Firstly, selecting 40 testees at random, it is acquired by step A, all data in motion process is being maintained (to add
Speed data and attitude angle data), and be stored in mobile phone；Again by the initial data of this 40 testees, it imported into SPSS
In data statistic analysis software, that is, formed 40 sample datas, single sample data are as shown in table 1, to each sample data into
Row processing, obtains the original index of the design: X-axis acceleration average value, Y-axis acceleration average value, Z axis acceleration average value,
Orientation mean angular deviation, pitching mean angular deviation overturn mean angular deviation, SVM average value (formula 1 is shown in SVM definition) as shown in table 2, SVM
Acceleration amplitude is calculated to characterize the severe degree of human motion, value shows that more greatly movement is more violent.It is defined as follows, wherein
ax, ay, azIndicate x, y, the acceleration in the direction z:
The original real time data measured of 1 single sample of table
The original index value of a sample of table more than 2
Then, the correlation matrix about original index is calculated in SPSS data statistic analysis software, therefrom chooses tool
There is correlation to be greater than 0.5 5 indexs (Y-axis acceleration average value, Z axis acceleration average value, pitching mean angular deviation, flip angle
Standard deviation, SVM average value), using in SPSS data statistic analysis software Kaiser-Meyer-Olkin test statistics and
The sphericity of Bartlett examines the rate Sig that accompanies to judge whether to be appropriate for factorial analysis, the KMO and Bartlett of factorial analysis
Inspection in value>0.5 KMO, Sig value<0.05, while specific gravity shared by each index is more than 0.6 in the factor extracted, therefore
It is appropriate for factorial analysis processing data.Carry out factorial analysis, extract 2 factors, and with the coefficient matrix of the factor itself and
Factor Weight is as standards of grading.
C, user information input is carried out in user setting module and is saved:
Firstly, using EditText public method complete information importing, and using RadioGroup public method according to
Name, gender and the mobile phone that user the inputs current time dynamically initialize menu；Recycle the class side View
After method detects that user executes the stored operation of guarantor, Activity class method combination self-defining data is utilized to connect class
ApplicationTrans transmits data to balanced capacity evaluation module, and thus module is saved.
D, centre-of-gravity path is shown in Posturography display module:
Firstly, customized RadarBackground class initializes radar Background, customized LineView class simultaneously loads cross
Gravity center of human body when initializing line chart Background to scroll control HorizontalScrollView, and setting test original state
Coordinate value (x0, y0, z0) (human body both feet center is coordinate origin, and mobile phone and human body have same coordinate system)；Again by attitude angle
Sensor obtains the angle that mobile phone is rotated around three axis of xyz coordinate system using SensorManager class method, and according to three angles
Degree calculates spin matrix, specific as follows:
When around z-axis rotation, z-axis spin matrix are as follows:
In formula: α is current time azimuth and the azimuthal difference of initial time.
When around x-axis rotation, x-axis spin matrix are as follows:
In formula: β is the difference of current time pitch angle and initial time pitch angle,
When around y-axis rotation, y-axis spin matrix are as follows:
In formula: θ is the difference of current time roll angle and initial time roll angle,
Then spin matrix are as follows: MXYZ=MXMYMZ (5)
By spin matrix and gravity center of human body's coordinate value, any time human body in testing is obtained using Matrix class method
The height (z) of coordinate value (x, y) and gravity center of human body in the vertical direction of center of gravity in the horizontal direction.Formula is as follows:
Then, these coordinate Value Datas are sent in real time with onDraw (Canvas using handler class method
Canvas it) in the view view class method of picture function, is drawn on radar Background respectively in conjunction with Paint and Canvas class method
The projection of center of gravity processed in the horizontal plane draws the variation of height of C.G., to completely show centre-of-gravity motion on broken line Background
Track, using BaseBundle and Intent class method transmission user's items real time data and the final time for maintaining balance to flat
Weigh capability evaluation module；
E, balanced capacity assessment and the preservation of user's performance information are realized in balanced capacity evaluation module:
Firstly, the personal essential information and Posturography using Intent class method call user setting module show mould
User's all data that block obtains；Math class method is recycled to obtain 5 original index of tested person, according in standards of grading
Coefficient matrix and each Factor Weight obtain balanced ability of human body achievement, realize the assessment of user equilibrium ability, specifically calculate
Journey is as follows:
A. 5 original index of tested person are standardized, due to the bigger expression balance of numerical value in this 5 indexs
Ability is poorer, therefore it standardizes formula are as follows:
Wherein xnFor n-th original index of tested person, μ is the mean value of n-th all sample data of original index, σ n-th
The standard deviation of the original all sample datas of item；
B. the standardized value of each index multiplication corresponding with its index, then be added to obtain each factor score fi, it may be assumed that
Wherein uniFor the coefficient of i-th of factor corresponding to n-th original index, as shown in table 3；
C. it according to Factor Weight, is weighted and summarizes, it may be assumed that
Wherein Si% is the i-th Factor Weight, i.e. variance percentage S in table 4i%；
It after the comprehensive score f for finally obtaining user, carries out hundred-mark system numerical value conversion and obtains user's achievement, is i.e. balanced capacity
Comprehensive score；
3 coefficient matrix of table
4 Factor Weight of table
It loads topology file main_value.xml and assessment is generated according to personal essential information and balanced ability of human body achievement
Report.
The result that balanced capacity is assessed in the method for the present invention is as shown in table 5 below:
Each index value of table 5 and scoring achievement
In obtained data, it is followed successively by by the descending sequence of each acceleration average value and attitude angle standard deviation tested
People D, tested person C, tested person E, tested person A, tested person B；And achievement is identical as this sequence.Due to each acceleration average value and appearance
State angular standard difference is big to indicate that body movement is most obvious in testing, and balanced ability of human body is relatively poor.To demonstrate this
The reasonability and effect of appraisal procedure.
The present invention realizes the acquisition of sample data, and analyzes the evaluation criterion that sample data establishes balanced ability of human body；It is logical
The real-time attitude data that sensor obtains in mobile phone are crossed, and obtain balanced ability of human body assessment knot according to established standards of grading
Fruit.
Claims (8)
1. a kind of balanced ability of human body appraisal procedure based on smart phone, which comprises the following steps:
A, the Data acquisition and storage of sample is carried out in data acquisition module: utilizing built-in acceleration sensor and appearance in mobile phone
State angle transducer, by mobile phone operating system provide sensor access interface obtain the real-time acceleration of testee's mobile phone and
Attitude angle data, and it is subjected to real-time display with the testing time, while all data of this testee are stored in mobile phone
In；
B, it establishes balanced ability of human body evaluation criterion: first remaining each in motion process by n testee of step A random acquisition
Item initial data is stored in mobile phone, forms n sample data；Each sample data is handled again, obtains every original finger
Mark and its correlation matrix therefrom choose the m item index that there is correlation to be greater than 0.5, the ball of test statistics and Bartlett
Shape degree examines the rate Sig that accompanies to judge whether to be appropriate for factorial analysis；If it is determined that being suitble to, then factorial analysis is carried out, k is extracted
A factor, while using the weight of the coefficient matrix of the factor itself and the factor as standards of grading；If it is not, then choosing again
Original index, until it meets the condition of progress factorial analysis；
C, user information input is carried out in user setting module and is saved: name, gender and the mobile phone inputted according to user
Current time dynamically initializes menu；After detecting that user executes the stored operation of guarantor, balance is transmitted data to
Capability evaluation module saves；
D, centre-of-gravity path is shown in Posturography display module: first initializing radar Background and line chart background
Figure, and set the coordinate value (x of gravity center of human body when testing original state0, y0, z0)；Again by attitude angle transducer obtain mobile phone around
The angle of the three axis rotation of xyz coordinate system, and spin matrix is calculated according to three goniometers；It is sat by spin matrix and gravity center of human body
Scale value obtains any time gravity center of human body in testing coordinate value (x, y) in the horizontal direction and gravity center of human body vertical
Height (z) on direction；The projection of center of gravity in the horizontal plane is drawn on radar Background respectively, is drawn on broken line Background
The variation of height of C.G., to completely show centre-of-gravity path；By user's items real time data and it is final maintain balance when
Between be transferred to balanced capacity evaluation module；
E, balanced capacity assessment and the preservation of user's performance information are realized in balanced capacity evaluation module: calling user setting mould
User's all data that the personal essential information and Posturography display module that block saves obtain, the m item for obtaining tested person are former
Beginning index obtains balanced ability of human body achievement with each Factor Weight according to the coefficient matrix in standards of grading, realizes that user is flat
The assessment of weighing apparatus ability, and then assessment report is generated according to personal essential information and balanced ability of human body achievement；
Wherein, the balanced ability of human body achievement is calculated by following steps:
E1. the m item original index of tested person is standardized, since the bigger expression of numerical value balances energy in this m index
Power is poorer, therefore it standardizes formula are as follows:
Wherein xnFor n-th original index of tested person, μ is the mean value of n-th all sample data of original index, and σ is n-th original
The standard deviation of all sample datas of beginning index；
E2. the standardized value of each index multiplication provided by coefficient matrix corresponding with its index, then be added to obtain each
Factor score fi, it may be assumed that
Wherein uniFor the coefficient of i-th of factor corresponding to n-th original index, m original index are shared；
E3. it according to Factor Weight, is weighted and summarizes, it may be assumed that
Wherein Si% is the weight of i-th of factor；
It after obtaining the comprehensive score f of user, carries out hundred-mark system numerical value conversion and obtains user's achievement, i.e., balanced capacity is comprehensive
Point.
2. a kind of balanced ability of human body appraisal procedure based on smart phone according to claim 1, it is characterised in that: step
In rapid A, the data are stored by multiple row, and first is classified as the testing time, other to be classified as related physical quantity.
3. a kind of balanced ability of human body appraisal procedure based on smart phone according to claim 1, it is characterised in that: step
Rapid B, the items original index is respectively X-axis acceleration average value, Y-axis acceleration average value, Z axis acceleration average value, side
Parallactic angle standard deviation, pitching mean angular deviation, overturning mean angular deviation and SVM average value.
4. a kind of balanced ability of human body appraisal procedure based on smart phone according to claim 3, it is characterised in that: institute
Stating SVM is acceleration amplitude, is defined as follows, wherein ax, ay, azIndicate x, y, the acceleration in the direction z,
5. a kind of balanced ability of human body appraisal procedure based on smart phone according to claim 1, which is characterized in that step
Rapid B, the condition of the judgement are as follows: KMO>0.6 and Sig<0.05.
6. a kind of balanced ability of human body appraisal procedure based on smart phone according to claim 1, it is characterised in that: step
Rapid D, it is and the coordinate system phase of mobile phone and human body using human body both feet center as coordinate origin that gravity center of human body's coordinate value, which is set,
Together.
7. a kind of balanced ability of human body appraisal procedure based on smart phone according to claim 1, it is characterised in that: step
Rapid D, the calculating process of the spin matrix are as follows:
When around z-axis rotation, z-axis spin matrix are as follows:
In formula: α is current time azimuth and the azimuthal difference of initial time；
When around x-axis rotation, x-axis spin matrix are as follows:
In formula: β is the difference of current time pitch angle and initial time pitch angle,
When around y-axis rotation, y-axis spin matrix are as follows:
In formula: θ is the difference of current time roll angle and initial time roll angle,
Then spin matrix are as follows: MXYZ=MXMYMZ(5)。
8. a kind of balanced ability of human body appraisal procedure based on smart phone according to claim 7, which is characterized in that step
Rapid D, the meter of the height (z) of coordinate value (x, y) and gravity center of human body in the vertical direction of the gravity center of human body in the horizontal direction
Calculate formula are as follows:
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| CN107374586A (en) * | 2017-07-05 | 2017-11-24 | 杭州电子科技大学 | A kind of total balance of the body method for dynamically assessing and its device |
| CN107967931B (en) * | 2017-12-29 | 2024-01-26 | 新绎健康科技有限公司 | Body balance data collector |
| CN108447562B (en) * | 2018-02-28 | 2021-09-10 | 李赛一 | User exercise capacity assessment method and system |
| CN108606776A (en) * | 2018-03-27 | 2018-10-02 | 复旦大学附属华山医院 | A kind of balance test system |
| CN108877888B (en) * | 2018-07-03 | 2021-04-09 | 杭州易脑复苏科技有限公司 | Motion function evaluation method and device |
| CN109271918B (en) * | 2018-09-10 | 2021-11-16 | 西安理工大学 | Method for distinguishing people with balance ability disorder based on gravity center shift model |
| CN109528201A (en) * | 2018-10-30 | 2019-03-29 | 天津科技大学 | A kind of balanced capacity detection method |
| CN110931131B (en) * | 2019-12-30 | 2023-04-28 | 华中科技大学鄂州工业技术研究院 | Balance capability evaluation method and device |
| CN111700624B (en) * | 2020-07-27 | 2024-03-12 | 中国科学院合肥物质科学研究院 | Pattern recognition method and system for detecting motion gesture by intelligent bracelet |
| CN113143218B (en) * | 2021-05-14 | 2022-06-17 | 吉林大学 | Device and method for testing human body autonomic balance capability in multiple dimensions |
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| WO2009093632A1 (en) * | 2008-01-23 | 2009-07-30 | Panasonic Electric Works Co., Ltd. | Device for evaluating balance of center of gravity |
| US9451916B2 (en) * | 2011-08-02 | 2016-09-27 | Sway Medical Llc | System and method for assessing postural sway and human motion |
| CN104783804A (en) * | 2014-06-03 | 2015-07-22 | 合肥星服信息科技有限责任公司 | Balance sensing remote monitoring device for hypertension patient |
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