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Knee OsteoarthritisNCT01538407

Strengthening Exercise and Quadriceps Force During Walking

A study testing Strength Training in people with Knee Osteoarthritis, run by Frederiksberg University Hospital at 2 sites in 2 countries.

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

This is a longitudinal, randomized, controlled interventional multi centric study on the effects of lower leg strengthening exercise on quadriceps force during walking in people with knee osteoarthritis. At each study centre twenty subjects will be included, for a total of 40 participants. Read more about this study

Who is it for?
Ages 18 to 70 years
Conditions the study is for
Knee Osteoarthritis
What is being tested?
Strength Training
Could I receive a placebo?
No, everyone receives an active treatment
How many people
30 participants
Where
2 sitesin 2 countries
Study dates
Mar 2012to Oct 2013
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 70 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • A medical doctor will perform the screening of potential participants. Subjects must meet the following inclusion criteria to be eligible for study entry:
  • Knee OA diagnosed according to the American College of Rheumatology criteria (26), with clinical symptoms and radiographically verified tibio-femoral osteoarthritis in one or both knees.
  • Aged between 40 and 65 yrs.
  • Untrained (i.e. less than 2 hours of exercise per week)
  • Subject must not be using assistive walking device
  • Willing and able to complete study visits and procedures
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  • Willing to hold activity and exercise level generally consistent during the study except that encompassed in the study.
  • In general good health, in the opinion of the investigator, based on medical history and physical examination and, if necessary, laboratory values. Laboratory tests are prescribed by the medical doctor at the screening visit.
  • A body mass index (BMI) of 19<BMI≤32kg/m2
  • Speaks, reads and writes Danish and/or English language

Who cannot join

  • Subjects who meet any of the following exclusion criteria will be ineligible for study entry:
  • Subjects depending on walking device
  • Pregnant or breastfeeding
  • Radiographic evidence of Patello-femoral knee OA only (and no tibio-femoral OA).
  • History of symptoms of autoimmune disorders (e.g., inflammatory bowel disease, multiple sclerosis, lupus, rheumatoid arthritis)
  • Planned surgical procedure during the duration of the study
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  • History or diagnosis of musculoskeletal injuries or pathologies, including but not limited to:
  • Anterior cruciate ligament injuries
  • Meniscal injuries related to trauma (degenerative changes allowed)
  • Patellofemoral Pain Syndrome
  • Low back pain
  • History, diagnosis, or signs and symptoms of clinically significant cardiovascular disease, including but not limited to:
  • Ischemic heart disease
  • Arthrosclerosis
  • Peripheral artery disease
  • History, diagnosis, or signs and symptoms of diabetes
  • History, diagnosis, or signs and symptoms of neurological disorders including but not limited to
  • Stroke
  • Parkinson's disease
  • Multiple sclerosis

Trial locations and contacts

2 sites in 2 countries.

2 sites in 2 countries

United States1 site
  • The College of Health and Human Performance, Department of Exercise and Sport Science, Minges Coliseum

    Greenville, North Carolina, 27858

Other trials in United States

Denmark1 site
  • The Parker Institute, Frederiksberg University Hospital

    Copenhagen, 2000

Other trials in Denmark

About this study

Official title: A Study of Strengthening Exercise on Quadriceps Force During Walking

This is a longitudinal, randomized, controlled interventional multi centric study on the effects of lower leg strengthening exercise on quadriceps force during walking in people with knee osteoarthritis. At each study centre twenty subjects will be included, for a total of 40 participants. Subjects will be randomized equally (1:1) into 1 active arm and 1 control arm.

The objective of the study is to evaluate the effect of twelve weeks of quadriceps strengthening on the mechanical output of the quadriceps during locomotion. A secondary purpose is to explore the relationship between quadriceps strengthening and compressive knee loadings. The hypothesis is that quadriceps strength training will not change quadriceps force, power, and work in locomotion in people with knee osteoarthritis.

Primary outcome is quadriceps force during walking, secondary outputs are quadriceps power and work and knee compressive loads during walking. Explorative measures are isometric and concentric isokinetic leg muscle strength, radiographic score of the knee (Kellgren and Lawrence), a one-leg rise from chair test (maximum number of reps) and a lateral step-up test (maximum number of reps).

Being tested
Strength Training
Keywords
Strength training, Biomechanics, Quadriceps, Gait
Medical subject headings
Osteoarthritis, Knee

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • Strength TrainingOther

    The exercises will be performed in standard strength training equipment. Prior to each of the strengthening exercise sessions, a warm up phase is performed by 5-10 minutes of ergometer cycling at a moderate intensity. Muscle strengthening exercises will be performed according to the standard progressive resistance and overload principle. The exercise programme consists of three exercises performed with three sets of 10 repetitions at 60%-85% of patient's 10RM. Training load will be progressed by means of bi-weekly estimates of muscle strength to ensure a constant load of 60%-85% RM. Exercises are: 1. Leg extension, 2. Leg press, and 3. Forward lunges.

Study groups in NCT01538407
Study groupRoleWhat they receive
Control groupNo interventionNo intervention group
Strength training groupActive comparatorThe knee extension strength training intervention period is 12 weeks with training sessions three times per week.
Receives: Other: Strength Training

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Change from baseline in peak quadriceps force during walking at 12 weeks

    Estimates of the quadriceps muscle forces during locomotion are calculated using a biomechanical model based on data from gait analysis

    Measured: Baseline and at 12 weeks

Secondary outcomes (2)
  1. Change from baseline in quadriceps power and work during walking at 12 weeks

    Estimated from gait analysis

    Measured: Baseline and after 12 weeks

  2. Change from baseline in knee compressive force during walking at 12 weeks

    Estimated from biomechanical modelling of data from gait analysis

    Measured: Baseline and after 12 weeks

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted24 Feb 2012 (estimated)
  2. Study startMar 2012
  3. Primary completionOct 2013
  4. Study completionOct 2013

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Randomised
Intervention model
Parallel groups
Masking
Single blind
Who is masked
Outcomes assessor
Enrolment
30 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT01538407
Sponsor's protocol ID
117.0
Status last verified
Jan 2014
First submitted
20 Feb 2012
Last updated
22 Jan 2014
Results posted
No
Data monitoring committee
No

Publications

  • DeVita P, Aaboe J, Bartholdy C, Leonardis JM, Bliddal H, Henriksen M. Quadriceps-strengthening exercise and quadriceps and knee biomechanics during walking in knee osteoarthritis: A two-centre randomized controlled trial. Clin Biomech (Bristol). 2018 Nov;59:199-206. doi: 10.1016/j.clinbiomech.2018.09.016. Epub 2018 Sep 15.

    PubMed 30273922

Questions about this trial

What is this clinical trial studying?

A study testing Strength Training in people with Knee Osteoarthritis, run by Frederiksberg University Hospital at 2 sites in 2 countries.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 10 inclusion and 20 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 22 Jan 2014. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 2 sites in United States, Denmark. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Change from baseline in peak quadriceps force during walking at 12 weeks (time frame: Baseline and at 12 weeks). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT01538407, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 22 Jan 2014.

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