The cost of being stable: Does the effort for balance control affect the energy cost of walking in amputees and stroke patients?

The cost of being stable: Does the effort for balance control affect the energy cost of walking in amputees and stroke patients? - The effect of balance control on energy cost of walking

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

NL-OMON

Registry ID

NL-OMON38508

Enrollment

Registered

2013-05-28

Start date

2013-03-21

Completion date

Unknown

Last updated

2024-04-29

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

CVA patients

Interventions

For amputees: An external stabilization device consisting of spring like chords will be used to facilitate balance control during walking on a treadmill. A destabilizing task task, in which subjects

Eligibility

Age

18 Years to 99 Years

Inclusion criteria

Inclusion criteria: All subjects: above age 18 years and able to walk on a treadmill during five uninterrupted minutes from which the last three minutes without handrail support. Additionally they have to be able to walk an imposed step pattern. Stroke patients a score of 4 or higher on the Functional Ambulatory Category (FAC) Amputees a SIGAM mobility scale D-F (being able to walk more than 50 meters independently on an even surface with or without an assistive device), and a proper fitting prosthesis for at least six months.

Exclusion criteria

Exclusion criteria: All subjects: cognitive and communicative disorders that could interfere with the protocol, cardiovascular or pulmonary co-morbidities contra-indicating moderate exercise, visual impairments that could interfere with the protocol, and medication and/or co-morbidities that could interfere with balance control or energy expenditure. Amputees: stump problems (pain, swelling, pressure sores) and significantly fluctuating stump volume within the last six months.

Design outcomes

Primary

Measure	Time frame
Primary outcome parameter is energy cost of walking (in J*kg-1m-1), calculated from breath by breath gas analysis	—

Secondary

Measure	Time frame
The following balance control related outcome parameters will be calculated: steplength, stepwidth, trunk acceleration and the variability of these measures, as well as gait stability and regularity. Gait stability will be quantified with the Lyapunov exponent and gait regularity will be quantified with the sample entropy. Additionally muscle activity will be measured in stroke patients using surface electromyography.	—

Measure

Time frame

The following balance control related outcome parameters will be calculated: steplength, stepwidth, trunk acceleration and the variability of these measures, as well as gait stability and regularity. Gait stability will be quantified with the Lyapunov exponent and gait regularity will be quantified with the sample entropy. Additionally muscle activity will be measured in stroke patients using surface electromyography.

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Countries

Netherlands

Outcome results

None listed

Source: NL-OMON (via WHO ICTRP)