scholarly journals Real-Time Detection of Seven Phases of Gait in Children with Cerebral Palsy Using Two Gyroscopes

Sensors ◽  
2019 ◽  
Vol 19 (11) ◽  
pp. 2517 ◽  
Author(s):  
Ahad Behboodi ◽  
Nicole Zahradka ◽  
Henry Wright ◽  
James Alesi ◽  
Samuel. C. K. Lee
Keyword(s):  
Cerebral Palsy ◽  
Angular Velocity ◽  
Real Time ◽  
Phase Detection ◽  
Typically Developing ◽  
Typically Developing Children ◽  
Real Time System ◽  
Viable Solution ◽  
Children With Cerebral Palsy ◽  
Gait Phase

A recently designed gait phase detection (GPD) system, with the ability to detect all seven phases of gait in healthy adults, was modified for GPD in children with cerebral palsy (CP). A shank-attached gyroscope sent angular velocity to a rule-based algorithm in LabVIEW to identify the distinct characteristics of the signal. Seven typically developing children (TD) and five children with CP were asked to walk on treadmill at their self-selected speed while using this system. Using only shank angular velocity, all seven phases of gait (Loading Response, Mid-Stance, Terminal Stance, Pre-Swing, Initial Swing, Mid-Swing and Terminal Swing) were reliably detected in real time. System performance was validated against two established GPD methods: (1) force-sensing resistors (GPD-FSR) (for typically developing children) and (2) motion capture (GPD-MoCap) (for both typically developing children and children with CP). The system detected over 99% of the phases identified by GPD-FSR and GPD-MoCap. Absolute values of average gait phase onset detection deviations relative to GPD-MoCap were less than 100 ms for both TD children and children with CP. The newly designed system, with minimized sensor setup and low processing burden, is cosmetic and economical, making it a viable solution for real-time stand-alone and portable applications such as triggering functional electrical stimulation (FES) in rehabilitation systems. This paper verifies the applicability of the GPD system to identify specific gait events for triggering FES to enhance gait in children with CP.

scholarly journals Effects of Task Constraints on Kinematic Characteristics of Body Segments in Children with Cerebral Palsy and Children with Typical Development during Hand-Reaching

2021 ◽  
Vol 11 (23) ◽  
pp. 11140
Author(s):  
Yun-Huei Ju ◽  
Rong-Ju Cherng
Keyword(s):  
Cerebral Palsy ◽  
Postural Control ◽  
Task Demands ◽  
Typical Development ◽  
Typically Developing ◽  
Typically Developing Children ◽  
Cross Sectional ◽  
Postural Alignment ◽  
Reaching Tasks ◽  
Children With Cerebral Palsy

Background: Children with cerebral palsy (CP) have difficulty in managing postural control during functional reaching tasks, although children with different postural control ability are able to come up with different motor solutions to cope with different task demands. This study examined the effect of task constraint on postural control performance in children with cerebral palsy and typical development (TD) in terms of different postural control abilities. Methods: A cross-sectional research design was used. Twelve children with spastic diplegic cerebral palsy (mean age: 107.8 months) and 16 typically developing children (mean age: 110.9 months) participated in this study. Individually, all subjects were seated in a height-adjusted chair and were requested to reach for target(s) located at three different directions (medial, anterior, and lateral). A six-camera Qualisys Motion Capture System was used to capture motion data. Kinematic data in terms of body alignment and angular changes were analyzed. Results: Children with cerebral palsy demonstrated different postural control strategies to complete different reaching tasks compared to typically developing children by preparing postural alignment in advance, coordinating different body orientation movements during reaching after showing difficulty in managing reach medially. Conclusions: Children with cerebral palsy perceive their insufficient ability and prepare their alignment in advance to adapt to the task demanded and decrease the postural challenges of the task. Even though children with cerebral palsy self-generate different motor solutions to reach without falling, these alternative strategies might not be the most efficient adaptation.

scholarly journals Comparing Levels of Mastery Motivation in Children with Cerebral Palsy (CP) and Typically Developing Children

2018 ◽  
Vol 72 (1) ◽  
pp. 41 ◽  
Author(s):  
Mahyar Salavati ◽  
Roshanak Vameghi ◽  
Seyed Hosseini ◽  
Ahmad Saeedi ◽  
Masoud Gharib
Keyword(s):  
Cerebral Palsy ◽  
Typically Developing ◽  
Mastery Motivation ◽  
Typically Developing Children ◽  
Children With Cerebral Palsy

Comparing Levels of Mastery Motivation in Children with Cerebral Palsy (CP) and Typically Developing Children

2018 ◽  
Vol 72 (1) ◽  
pp. 42
Author(s):  
Mahyar Salavati ◽  
Roshanak Vameghi ◽  
Seyed Hosseini ◽  
Ahmad Saeedi ◽  
Masoud Gharib
Keyword(s):  
Cerebral Palsy ◽  
Typically Developing ◽  
Mastery Motivation ◽  
Typically Developing Children ◽  
Children With Cerebral Palsy

scholarly journals Robot-Assisted Therapy Influence on Kinematic and EMG Activity in the Upper Limb for Children with Cerebral Palsy

2020 ◽  
Author(s):  
Sana Raouafi ◽  
Maxime Raison ◽  
Sofiane Achiche
Keyword(s):  
Cerebral Palsy ◽  
Motor Function ◽  
Upper Limb ◽  
Typically Developing ◽  
Typically Developing Children ◽  
Robot Assisted ◽  
Function Index ◽  
Children With Cerebral Palsy ◽  
Before And After ◽  
Inertial Measurements

Aim: To develop an index for quantitative assessment of the upper limb motor function in children with cerebral palsy before and after robot-assisted therapy. Method: An upper limb motor function index was developed using kinematic, surface electromyography and three-axis inertial measurements unit data collected from 15 children with cerebral palsy (CP) and 15 typically developed children. Children with CP underwent 18 robot-assisted therapy sessions with the REAplan device. All children were evaluated, using kinematic data from the REAplan, electromyography and three-axis inertial measurements unit readings from its accelerometer. A principal component analysis was conducted to produce an evaluation index, which is able to detect the deviation from the upper limb motor function of typically developing children group. Children with CP were evaluated twice before and after the intervention with Box and Blocks test and Finger-To-Nose test. The discriminative and concurrent validity of the upper limb motor function index were investigated. Results: The upper limb motor function index was higher in children with CP post therapy (p<0.001). Finger-To-Nose test values improved after robot-assisted therapy (p<0.03). A weak but positive correlation was observed between upper limb motor function index and clinical tests (r=0.012, p=0.95 and r=0.13, p= 0.54 for Box and Blocks test and Finger-To-Nose test respectively). Interpretation: The upper limb motor function index successfully differentiated between the typically developing children and children with CP and was effective in assessing the improvement of the upper limb motor function after robot-assisted therapy. The upper limb motor function index could be extended to assess and monitor rehabilitation therapies of other populations, such as those with stroke and Parkinson’s disease.

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