standing balance elderly ankle and hip strategy adaptation balanshandhaving ouderen enkel en heup strategie adaptatie
Conditions
Interventions
To study multi-joint coordination, balance disturbances are externally applied by pushing and pulling at the hips and shoulders. The disturbances contain multiple frequencies ranging from 0.05-5Hz, ma
Sponsors
University of Twente
Eligibility
Inclusion criteria
Inclusion criteria: Healthy young subjects aged between 20-30 years Healthy elderly subjects aged 70 years or older Ability to stand independently for approximately 5 consecutive minutes
Exclusion criteria
Exclusion criteria: Unable to give informed consent Current orthopeadic problems Neurological disorders A history of cardiac conditions that interfere with physical load Chronic joint pain, or rheumatoid arthritis Use of medication with an effect on balance control pregnancy
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Frequency Response Functions (FRF) describe the dynamic relation between the disturbances and the human responses (ankle and hip angle and corresponding joint torques) in means of amplitude and timing. | — |
Secondary
| Measure | Time frame |
|---|---|
| In addition a human balance control model is fit onto the experimentally derived FRF, to estimate parameters with a physiological meaning, for instance ankle and hip joint passive stiffness, reflexive properties and neural time delays. | — |
Contacts
Public ContactD. Engelhart
University of Twente, Department of Biomechanical Engineering, MIRA
Outcome results
None listed