Power During Functional Tasks in Older Adults: Reliability, Reference Values and Relationship With Other Outcome Measurements Related to Sarcopenia
Overview
- Phase
- N/A
- Intervention
- Not specified
- Conditions
- Aging
- Sponsor
- Universitaire Ziekenhuizen KU Leuven
- Enrollment
- 284
- Locations
- 1
- Primary Endpoint
- Reliability of power measurements measured with a 3D accelerometer
- Status
- Completed
- Last Updated
- 3 years ago
Overview
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.
Investigators
Eligibility Criteria
Inclusion Criteria
- Not provided
Exclusion Criteria
- •Unstable cardiovascular diseases
- •Fever or acute infection
- •Cognitive or physical malfunctioning that hinders the understanding or performance of tests and/or instructions
Outcomes
Primary Outcomes
Reliability of power measurements measured with a 3D accelerometer
Time Frame: 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
Time Frame: 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
Time Frame: 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
Time Frame: 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
Time Frame: 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
Time Frame: 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
Time Frame: 1 test moment of approximately 1 hour, planned between September 2019 and July 2020
Handgrip strength (kg) evaluated with a Jamar dynamometer
Jumping height
Time Frame: 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 Outcomes
- Balance(1 test moment of approximately 1 hour, planned between September 2019 and July 2020)
- Maximal gait speed(1 test moment of approximately 1 hour, planned between September 2019 and July 2020)
- Maximal isokinetic strength(1 test moment of approximately 1 hour, planned between September 2019 and July 2020)
- Number of repetitions during a 30s sit-to-stand test(1 test moment of approximately 1 hour, planned between September 2019 and July 2020)
- Usual gait speed(1 test moment of approximately 1 hour, planned between September 2019 and July 2020)
- Maximal isometric strength(1 test moment of approximately 1 hour, planned between September 2019 and July 2020)
- 6min walk distance(1 test moment of approximately 1 hour, planned between September 2019 and July 2020)