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Mobility Optimization Through Velocity Exercise (MOVE)

2 mei 2016 bijgewerkt door: Neil A Segal, University of Iowa

Optimizing Mobility in Older Adults With Knee Osteoarthritis

Knee Osteoarthritis (OA) accounts for a significant proportion of mobility limitations and is one of the most disabling problems facing the growing population of older adults. The purpose of this research is to reduce disablement of older adults with symptomatic knee osteoarthritis.

Studie Overzicht

Toestand

Voltooid

Conditie

Interventie / Behandeling

Gedetailleerde beschrijving

The long-term objective of this research is to reduce disablement of older adults with knee osteoarthritis (OA). This will be accomplished through assessing changes in functional limitations (standing and walking) that occur with 2 mobility-specific interventions. The principle of specificity of training indicates that exercises that closely approximate the goal functional activity are most effective in improving physical performance during that activity. However, there is uncertainty whether intervening to increase muscle power or to improve gait mechanics would be most effective for optimizing mobility in older adults with knee OA. Although gait training may be most specific for improving gait, this approach currently requires supervised physical therapy and expensive equipment. In contrast, power training may be less costly and more convenient if conducted at home. To optimize mobility in older adults with symptomatic knee OA, there is a need to study each of these mobility-specific interventions in a randomized controlled trial (RCT). Successful completion of this trial will inform rehabilitation for maintaining or improving mobility as well as explore the mechanism of effect.

Specific Aim 1: Assess the efficacy of two innovative interventions for improving mobility limitations, disability and quality of life in older adults with symptomatic knee OA.

Primary Hypothesis: For older adults with symptomatic knee OA, in comparison with usual care (control group), a 3-month a) patient-specific gait training intervention and b) mobility-specific power training intervention will reduce lower limb mobility limitations assessed using the Function component of the Late Life Function and Disability Index (LLFDI-Function).

Hypothesis 2: Improved mobility will be maintained at 6 and 12-month follow-up (3 and 9 months following transitioning to home-based training) for each of the 2 intervention groups who receive the combination of the home-based intervention and encouragement to continue participation.

Hypothesis 3: In comparison to baseline measures, at 3, 6, and 12-month follow-up, each of the 2 intervention groups will demonstrate improvements in a) disability (LDCW), b) quality of life assessed using the Knee Osteoarthritis Outcome Score questionnaire Quality of Life component(KOOS Knee QOL), and c) knee OA specific outcome scores using the pain subscale component of KOOS.

Studietype

Ingrijpend

Inschrijving (Werkelijk)

58

Fase

  • Niet toepasbaar

Contacten en locaties

In dit gedeelte vindt u de contactgegevens van degenen die het onderzoek uitvoeren en informatie over waar dit onderzoek wordt uitgevoerd.

Studie Locaties

  • Verenigde Staten
    • Iowa
      • Iowa City, Iowa, Verenigde Staten, 52242
        • University of Iowa

Deelname Criteria

Onderzoekers zoeken naar mensen die aan een bepaalde beschrijving voldoen, de zogenaamde geschiktheidscriteria. Enkele voorbeelden van deze criteria zijn iemands algemene gezondheidstoestand of eerdere behandelingen.

Geschiktheidscriteria

Leeftijden die in aanmerking komen voor studie

60 jaar en ouder (Volwassen, Oudere volwassene)

Accepteert gezonde vrijwilligers

Nee

Geslachten die in aanmerking komen voor studie

Allemaal

Beschrijving

Inclusion Criteria:

  • Age 60 or older
  • Symptomatic knee osteoarthritis (knee osteoarthritis diagnosed by x-ray and frequent knee symptoms)

Exclusion Criteria:

  • bilateral knee replacement
  • acute or terminal illness
  • unstable cardiovascular condition or other medical conditions that may impair ability to participate such as pulmonary disease requiring use of supplement oxygen, or current medical condition that affects walking, or lower limb musculoskeletal surgery in the past 6 months

Studie plan

Dit gedeelte bevat details van het studieplan, inclusief hoe de studie is opgezet en wat de studie meet.

Hoe is de studie opgezet?

Ontwerpdetails

  • Primair doel: Behandeling
  • Toewijzing: Gerandomiseerd
  • Interventioneel model: Parallelle opdracht
  • Masker: Verviervoudigen

Wapens en interventies

Deelnemersgroep / Arm
Interventie / Behandeling
Experimenteel: Gait Training
Gait Training Intervention Group Participants
Ander: Gait Training
Gait training with a physical therapist 2/week for the first 3 months followed by 1/week for the following 3 months
Placebo-vergelijker: Control
Gait Training Control Group Participants
Ander: Control
There is no intervention associated with this arm of the study

Wat meet het onderzoek?

Primaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change in Basic Lower Limb Function (Late Life Function Index) Late Life Function and Disability Instrument
Tijdsspanne: 0,3,6, and 12 months

This is a questionnaire that evaluates self-reported difficulty in a person's ability to do discrete actions or activities primarily involving standing, stooping and fundamental walking activities without the help of others. Factors that may influence difficulty in task performance include pain, fatigue, fear, weakness, soreness, ailments, health conditions and disabilities.

Scored from 14 to 70 with scores approaching 70 signifying high levels in ability to perform activities primarily involving standing, stooping, and fundamental walking (without assistance), and scores approaching 14 signifying low levels in ability to perform activities primarily involving standing, stooping, and fundamental walking (without assistance).
0,3,6, and 12 months

Secundaire uitkomstmaten

Uitkomstmaat
Maatregel Beschrijving
Tijdsspanne
Change in Knee Osteoarthritis Injury and Outcome Scale (KOOS) Pain
Tijdsspanne: 0,3,6 and 12 months

This is a 42-item self-administered questionnaire that covers five patient-relevant dimensions, including pain and knee-related symptoms. This instrument has been found to be a reliable and responsive measure in older adults with knee OA as well as sensitive to changes in pain and knee-related symptoms over 6- and 12-mo periods.

Scored from 0 to 100 with 100 indicating no pain.
0,3,6 and 12 months
Change in KOOS Symptoms
Tijdsspanne: 0,3,6 and 12 months

This instrument has been found to be a reliable and responsive measure in older adults with knee OA as well as sensitive to changes in pain and knee-related symptoms over 6- and 12-mo periods.

Scored from 0 to 100 with 100 indicating no symptoms.
0,3,6 and 12 months
Change in Long Distance Corridor Walk (LDCW) Time, Secs
Tijdsspanne: 0,3,6 and 12 months
The LDCW included both 2-min walk distance and 400-m walk time. This measure has been shown to be predictive of changes in community mobility. Per the LDCW protocol, for participants unable to walk 400 m, gait speed was estimated from the 2-min walk distance, so that all participant data were on the same scale.
0,3,6 and 12 months
Change in Stair Climb Time, Secs
Tijdsspanne: 0,3,6, and 12 months
Functional limitations specific to ascending stairs were assessed with a times stair climb, using a standard eight-stair flight (stair height = 19 cm)
0,3,6, and 12 months
Change in Chair Stand Time
Tijdsspanne: 0,3,6,and 12 months
Measured as the total time (in seconds) required to stand five times from a seated position in a standardized chair without using arms.
0,3,6,and 12 months

Medewerkers en onderzoekers

Hier vindt u mensen en organisaties die betrokken zijn bij dit onderzoek.

Sponsor

University of Iowa

Medewerkers

National Institute on Aging (NIA)

Studie record data

Deze datums volgen de voortgang van het onderzoeksdossier en de samenvatting van de ingediende resultaten bij ClinicalTrials.gov. Studieverslagen en gerapporteerde resultaten worden beoordeeld door de National Library of Medicine (NLM) om er zeker van te zijn dat ze voldoen aan specifieke kwaliteitscontrolenormen voordat ze op de openbare website worden geplaatst.

Bestudeer belangrijke data

Studie start

1 augustus 2008

Primaire voltooiing (Werkelijk)

1 oktober 2010

Studie voltooiing (Werkelijk)

1 oktober 2011

Studieregistratiedata

Eerst ingediend

13 februari 2009

Eerst ingediend dat voldeed aan de QC-criteria

13 februari 2009

Eerst geplaatst (Schatting)

16 februari 2009

Updates van studierecords

Laatste update geplaatst (Schatting)

6 juni 2016

Laatste update ingediend die voldeed aan QC-criteria

2 mei 2016

Laatst geverifieerd

1 mei 2016

Meer informatie

Termen gerelateerd aan deze studie

Trefwoorden

Aanvullende relevante MeSH-voorwaarden

Andere studie-ID-nummers

  • 200807706
  • K23AG030945-01 (Subsidie/contract van de Amerikaanse NIH)

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