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  • 1
    Online-Ressource
    Online-Ressource
    The Effects of Acute Intense Physical Exercise on Postural Stability in Children With Cerebral Palsy
    Human Kinetics ; 2016
    In:  Adapted Physical Activity Quarterly Vol. 33, No. 3 ( 2016-07), p. 271-282
    Details
    In: Adapted Physical Activity Quarterly, Human Kinetics, Vol. 33, No. 3 ( 2016-07), p. 271-282
    Kurzfassung: This study evaluated the effects of intense physical exercise on postural stability of children with cerebral palsy (CP). Center of pressure (CoP) was measured in 9 typically developing (TD) children and 8 with CP before and after a maximal aerobic shuttle-run test (SRT) using a single force plate. Anteroposterior and mediolateral sway velocities, sway area, and sway regularity were calculated from the CoP data and compared between pre- and postexercise levels and between groups. Children with CP demonstrated significantly higher pre-SRT CoP velocities than TD children in the sagittal (18.6 ± 7.6 vs. 6.75 1.78 m/s) and frontal planes (15.4 ± 5.3 vs. 8.04 ± 1.51 m/s). Post-SRT, CoP velocities significantly increased for children with CP in the sagittal plane (27.0 ± 1.2 m/s), with near-significant increases in the frontal plane (25.0 ± 1.5m/s). Similarly, children with CP evidenced larger sway areas than the TD children both pre- and postexercise. The diminished postural stability in children with CP after short but intense physical exercise may have important implications including increased risk of falls and injury.
    Materialart: Online-Ressource
    ISSN: 0736-5829 , 1543-2777
    URL: Article
    DOI: 10.1123/APAQ.2015-0115
    Sprache: Unbekannt
    Verlag: Human Kinetics
    Publikationsdatum: 2016
    SSG: 31
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 2
    Online-Ressource
    Online-Ressource
    Design and Accuray of an Instrumented Insole Using Pressure Sensors for Step Count
    MDPI AG ; 2019
    In:  Sensors Vol. 19, No. 5 ( 2019-02-26), p. 984-
    Details
    In: Sensors, MDPI AG, Vol. 19, No. 5 ( 2019-02-26), p. 984-
    Kurzfassung: Despite the accessibility of several step count measurement systems, count accuracy in real environments remains a major challenge. Microelectromechanical systems and pressure sensors seem to present a potential solution for step count accuracy. The purpose of this study was to equip an insole with pressure sensors and to test a novel and potentially more accurate method of detecting steps. Methods: Five force-sensitive resistors (FSR) were integrated under the heel, the first, third, and fifth metatarsal heads and the great toe. This system was tested with twelve healthy participants at self-selected and maximal walking speeds in indoor and outdoor settings. Step counts were computed based on previously reported calculation methods, individual and averaged FSR-signals, and a new method: cumulative sum of all FSR-signals. These data were compared to a direct visual step count for accuracy analysis. Results: This system accurately detected steps with success rates ranging from 95.5 ± 3.5% to 98.5 ± 2.1% (indoor) and from 96.5 ± 3.9% to 98.0 ± 2.3% (outdoor) for self-selected walking speeds and from 98.1 ± 2.7% to 99.0 ± 0.7% (indoor) and 97.0 ± 6.2% to 99.4 ± 0.7% (outdoor) for maximal walking speeds. Cumulative sum of pressure signals during the stance phase showed high step detection accuracy (99.5 ± 0.7%–99.6 ± 0.4%) and appeared to be a valid method of step counting. Conclusions: The accuracy of step counts varied according to the calculation methods, with cumulative sum-based method being highly accurate.
    Materialart: Online-Ressource
    ISSN: 1424-8220
    URL: Article
    DOI: 10.3390/s19050984
    Sprache: Englisch
    Verlag: MDPI AG
    Publikationsdatum: 2019
    ZDB Id: 2052857-7
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 3
    Online-Ressource
    Online-Ressource
    Validity of Instrumented Insoles for Step Counting, Posture and Activity Recognition: A Systematic Review
    MDPI AG ; 2019
    In:  Sensors Vol. 19, No. 11 ( 2019-05-28), p. 2438-
    Details
    In: Sensors, MDPI AG, Vol. 19, No. 11 ( 2019-05-28), p. 2438-
    Kurzfassung: With the growing interest in daily activity monitoring, several insole designs have been developed to identify postures, detect activities, and count steps. However, the validity of these devices is not clearly established. The aim of this systematic review was to synthesize the available information on the criterion validity of instrumented insoles in detecting postures activities and steps. The literature search through six databases led to 33 articles that met inclusion criteria. These studies evaluated 17 different insole models and involved 290 participants from 16 to 75 years old. Criterion validity was assessed using six statistical indicators. For posture and activity recognition, accuracy varied from 75.0% to 100%, precision from 65.8% to 100%, specificity from 98.1% to 100%, sensitivity from 73.0% to 100%, and identification rate from 66.2% to 100%. For step counting, accuracies were very high (94.8% to 100%). Across studies, different postures and activities were assessed using different criterion validity indicators, leading to heterogeneous results. Instrumented insoles appeared to be highly accurate for steps counting. However, measurement properties were variable for posture and activity recognition. These findings call for a standardized methodology to investigate the measurement properties of such devices.
    Materialart: Online-Ressource
    ISSN: 1424-8220
    URL: Article
    DOI: 10.3390/s19112438
    Sprache: Englisch
    Verlag: MDPI AG
    Publikationsdatum: 2019
    ZDB Id: 2052857-7
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 4
    Online-Ressource
    Online-Ressource
    Acute Physical Exercise Affects Cognitive Functioning in Children With Cerebral Palsy
    Human Kinetics ; 2016
    In:  Pediatric Exercise Science Vol. 28, No. 2 ( 2016-05), p. 304-311
    Details
    In: Pediatric Exercise Science, Human Kinetics, Vol. 28, No. 2 ( 2016-05), p. 304-311
    Kurzfassung: Little is known about the effects of acute exercise on the cognitive functioning of children with cerebral palsy (CP). Selected cognitive functions were thus measured using a pediatric version of the Stroop test before and after maximal, locomotor based aerobic exercise in 16 independently ambulatory children (8 children with CP), 6–15 years old. Intense exercise had: 1) a significant, large, positive effect on reaction time (RT) for the CP group (preexercise: 892 ± 56.5 ms vs. postexercise: 798 ± 45.6 ms, p 〈 .002, d = 1.87) with a trend for a similar but smaller response for the typically developing (TD) group (preexercise: 855 ± 56.5 ms vs. postexercise: 822 ± 45.6 ms, p 〈 .08, d = 0.59), and 2) a significant, medium, negative effect on the interference effect for the CP group (preexercise: 4.5 ± 2.5%RT vs. postexercise: 13 ± 2.9%RT, p 〈 .04, d = 0.77) with no significant effect for the TD group (preexercise: 7.2 ± 2.5%RT vs. postexercise: 6.9 ± 2.9%RT, p 〉 .4, d = 0.03). Response accuracy was high in both groups pre- and postexercise ( 〉 96%). In conclusion, intense exercise impacts cognitive functioning in children with CP, both by increasing processing speed and decreasing executive function.
    Materialart: Online-Ressource
    ISSN: 0899-8493 , 1543-2920
    URL: Article
    DOI: 10.1123/pes.2015-0110
    Sprache: Unbekannt
    Verlag: Human Kinetics
    Publikationsdatum: 2016
    SSG: 31
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 5
    Online-Ressource
    Online-Ressource
    Use of clinical measures to document the effect of passive cycling on knee extensor spasticity and the ability to perform activities of daily living in spinal cord injury: a case report
    Ovid Technologies (Wolters Kluwer Health) ; 2018
    In:  International Journal of Rehabilitation Research Vol. 41, No. 1 ( 2018-03), p. 92-94
    Details
    In: International Journal of Rehabilitation Research, Ovid Technologies (Wolters Kluwer Health), Vol. 41, No. 1 ( 2018-03), p. 92-94
    Kurzfassung: The effects, on spasticity-related clinical measure results [initial knee flexion velocity during the pendulum test (F1-VEL); Spinal Cord Injury Spasticity Evaluation Tool (SCI-SET) scores], of a 5-week passive cycling program were assessed in a 67-year-old man with chronic, complete, thoracic-level SCI. Three weekly evaluations were performed before and after training, at the start, middle, and end of the training (ET), and 24 h following ET. The F1-VEL increased significantly from baseline, from ET to the 2-week follow-up evaluation. A trend was found for an improvement from baseline in SCI-SET scores, from middle of training onwards. These findings, which can inform clinical decisions and clinical trial development, suggest that the F1-VEL pendulum test result may be used to document the effect on knee extensor spasticity of a passive cycling program in chronic, complete, thoracic-level SCI. Whether this is also true for the SCI-SET requires future confirmation.
    Materialart: Online-Ressource
    ISSN: 0342-5282
    URL: Article
    DOI: 10.1097/MRR.0000000000000269
    Sprache: Englisch
    Verlag: Ovid Technologies (Wolters Kluwer Health)
    Publikationsdatum: 2018
    ZDB Id: 2030422-5
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
  • 6
    Online-Ressource
    Online-Ressource
    Impact of a short walking exercise on gait kinematics in children with cerebral palsy who walk in a crouch gait
    Elsevier BV ; 2016
    In:  Clinical Biomechanics Vol. 34 ( 2016-05), p. 18-21
    Details
    In: Clinical Biomechanics, Elsevier BV, Vol. 34 ( 2016-05), p. 18-21
    Materialart: Online-Ressource
    ISSN: 0268-0033
    URL: Article
    DOI: 10.1016/j.clinbiomech.2016.03.003
    Sprache: Englisch
    Verlag: Elsevier BV
    Publikationsdatum: 2016
    ZDB Id: 2004518-9
    SSG: 31
    Standort Signatur Einschränkungen Verfügbarkeit
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    Online-Ressource
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