Power During Functional Tasks in Older Adults
- Conditions
- Aging
- Interventions
- Diagnostic Test: Muscle function test
- Registration Number
- NCT04019132
- Lead Sponsor
- Universitaire Ziekenhuizen KU Leuven
- Brief Summary
The primary aim of this study is to optimize the methodology to measure lower limb power in older adults, so that clinicians are able to detect functional problems in this population earlier.
- Detailed Description
Aging is associated with slower movement patterns, a higher fall risk and a restriction in functionality. This will lead to an increase in the number of dependent elderly and a high socio-economic burden. From the age of 40, a systematic loss of muscle mass and muscle force, also known as sarcopenia, will occur. In addition, performing daily tasks requires the production of muscle force at a certain speed. The product of force and speed, power, decreases even earlier and faster than muscle force.
This power is typically measured with specialized equipment, which limits the large-scale applicability. With the help of accelerometry there is the possibility to measure power during more functional tasks and movements, which benefits the applicability, but the reliability, reference values and link with other outcome measurements related to sarcopenia has to be investigated.
Recruitment & Eligibility
- Status
- COMPLETED
- Sex
- All
- Target Recruitment
- 284
- Age >20
- Unstable cardiovascular diseases
- Fever or acute infection
- Cognitive or physical malfunctioning that hinders the understanding or performance of tests and/or instructions
Study & Design
- Study Type
- OBSERVATIONAL
- Study Design
- Not specified
- Arm && Interventions
Group Intervention Description Middle-aged group 1 Muscle function test Adults between the age of 40 and 55 years Older adults Muscle function test Older adults aged \>65 years Young group Muscle function test Younger adults between the age of 20 and 40 years Middle-aged group 2 Muscle function test Adults between the age of 55 and 65 years
- Primary Outcome Measures
Name Time Method Reliability of power measurements measured with a 3D accelerometer 1 test moment of approximately 30 minutes, planned between September 2019 and July 2020 Reliability of power measurements (watt) measured with a 3D accelerometer (DynaPort MoveTest, McRoberts) worn during functional activities (stair climbing, sit-to-stand test) three times within a period of 2 weeks
Rate of power (force-velocity) development 1 test moment of approximately 1 hour, planned between September 2019 and July 2020 Participants perform a test protocol on a Biodex Dynamometer. The rate of power development (watt/s) is defined as the linear slope of the power-time curve and is measured from the onset of movement till peak power.
Lower limb muscle power during a stair climb test 1 test moment of approximately 1 hour, planned between September 2019 and July 2020 The power (watt) needed to perform stair climbing is calculated using a 3D accelerometer (DynaPort MoveTest, McRoberts), worn at the back of the participant
Physical activity 1 week Objective measurement of physical activity in a subgroup of older participants (n=50) by means of accelerometry
Number of steps/stairs a day 1 week Objective measurement of physical activity in a subgroup of older participants (n=50) by means of accelerometry
Lower limb muscle power during a sit-to-stand test 1 test moment of approximately 1 hour, planned between September 2019 and July 2020 The power (watt) needed to perform 5 sit-to-stand transitions and a 30 sec. sit-to-stand test is calculated using a 3D accelerometer (DynaPort MoveTest, McRoberts), worn at the back of the participant
Handgrip strength 1 test moment of approximately 1 hour, planned between September 2019 and July 2020 Handgrip strength (kg) evaluated with a Jamar dynamometer
Jumping height 1 test moment of approximately 1 hour, planned between September 2019 and July 2020 Jumping height (in cm) measured during a standardized jump test
- Secondary Outcome Measures
Name Time Method Balance 1 test moment of approximately 1 hour, planned between September 2019 and July 2020 Number of seconds a participant can hold a tandem stand, a semi-tandem stand or with the feet together
Maximal gait speed 1 test moment of approximately 1 hour, planned between September 2019 and July 2020 The average speed to walk 3m as fast as possible (in m/s)
Maximal isokinetic strength 1 test moment of approximately 1 hour, planned between September 2019 and July 2020 Maximal strength (Nm) is measured by means of unilateral isokinetic knee-extensor tests on a Biodex Dynamometer
Number of repetitions during a 30s sit-to-stand test 1 test moment of approximately 1 hour, planned between September 2019 and July 2020 Number of complete sit-to-stand transitions in 30 sec.
Usual gait speed 1 test moment of approximately 1 hour, planned between September 2019 and July 2020 The average speed to walk 4m at a usual pace (in m/s)
Maximal isometric strength 1 test moment of approximately 1 hour, planned between September 2019 and July 2020 Maximal strength (Nm) is measured by means of unilateral isometric knee-extensor tests on a Biodex Dynamometer
6min walk distance 1 test moment of approximately 1 hour, planned between September 2019 and July 2020 The walk distance (in m) covered in 6 min.
Trial Locations
- Locations (1)
KU Leuven - Department of Movement Sciences
🇧🇪Leuven, Vlaams-Brabant, Belgium