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Knee OsteoarthritisNCT02761590

Circuit Training on Knee Osteoarthritis Patients

A study testing Circuit training protocol in people with Knee Osteoarthritis, run by Universidade Federal de Sao Carlos at 1 site in Brazil.

Unknown status

Status not confirmed. The sponsor has not verified this record for over two years, so it may be out of date.

Official record
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Trial summary

Introduction: The increase in intermuscular adipose tissue (IMAT) can contribute to muscle weakness and consequently on progression of knee OA. The prescription of exercise protocols has been used as a treatment strategy to minimize some of the bouts. Read more about this study

Who is it for?
Ages 40 to 65 years
Conditions the study is for
Knee Osteoarthritis
What is being tested?
Circuit training protocol
Could I receive a placebo?
No, everyone receives an active treatment
How many people
60 participants
Where
1 siteBrazil
Study dates
Mar 2015to Feb 2019
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 40 to 65 years
  • All sexes
  • No healthy volunteers
  • Adult, Older adult

Who may be able to join

  • aged between 40 and 65
  • sedentary
  • radiographically and clinically diagnosed with knee OA

Who cannot join

  • performed physical therapy or exercise protocol up to 6 months prior to the beginning of the evaluations of this study
  • previous knee surgeries
  • previous history of trauma to the lower limb
  • corticosteroid infiltration in knees in the 30 days prior to baseline
  • prosthesis (partial or total) hip or knee arthritis
  • use of chondroprotective
Show all 14Show fewer
  • cognitive deficits that compromise the understanding of tests and exercises
  • body mass index (BMI) ≥30 kg / m²
  • heart disease uncontrolled
  • history of muscle injuries severe (above grade I)
  • motor deficits due to neuromuscular disease
  • cardiac pacemaker use
  • chronic diseases
  • impaired renal function, or any other medical condition that makes it impossible to participate in this study.

Trial locations and contacts

1 site in 1 country.

Brazil1 site
  • Federal University of São Carlos

    São Carlos, São Paulo, 13564-560

Other trials in Brazil

About this study

Official title: Influence of a Circuit Trining Protocol on Intermuscular Adipose Tissue of Knee Osteoarthritis Patients: a Randomized Controlled Trial

Introduction: The increase in intermuscular adipose tissue (IMAT) can contribute to muscle weakness and consequently on progression of knee OA. The prescription of exercise protocols has been used as a treatment strategy to minimize some of the bouts. Circuit training (CT) involves the combination of strength training and aerobic in the same session and has shown benefits in body composition and physical function. But the literature is unclear with respect to the influences of CT in the concentration of IMAT in the population with knee OA. Objective: To investigate the influence of a 14-week CT protocol in body composition and thigh IMAT concentration as well as cartilage degradation indicators and systemic inflammation and its impact on quality of life in patients with knee OA.

Read the detailed description

This study presents a randomized controlled trial design. They will be selected 40 participants diagnosed with knee OA grades II and III, aged 40 and 65 years and BMI <30 kg / m2 were randomly divided into two groups: participants underwent training (trained group - TG) and not subjected to training ( untrained group - NTG). The participants trained group will undergo a periodized CT protocol of 14 weeks load progression, 3 times a week, with sessions last 15 minutes in the first weeks and will arrive 35 minutes in final weeks, and added 10 minutes between heating and cooling down. All subjects will conduct pre and post CT variables: IMAT thigh (computed tomography); body composition (Dual-energy X-ray absorptiometry - DXA), inflammatory biomarker concentrations: IL-1β, IL-6, IL-10, TNF-α, leptin and adiponectin and joint degradation biomarkers (uCTX-II and sCOMP), performance tests functional (six-minute walk, 30 seconds chair stand test and stair climb test), muscle strength (maximum voluntary isometric contraction - MVIC), WOMAC and KOOS questionnaires, and catastrophizing pain scale. During the training protocol, uCTX-II variables, sCOMP and MVIC will also be evaluated. To compare the groups will be applied the unpaired t-test. When found significant main effects, the Bonferroni test will be used to identify the statistically significant differences. To compare the collections times (pre, during and post TC) for uCTX-II variables, sCOMP and MVIC will be held repeated measures ANOVA with post hoc Bonferroni, and the WOMAC variables, KOOS, DXA, IMAT, functional testing and inflammatory cytokines (pre and post CT) will be held the paired t test. A significance level of 5% (p ≤ 0.05) will be adopted.

Being tested
Circuit training protocol
Keywords
intermuscular fat, circuit training, adipokines, inflammation, computed tomography scan
Medical subject headings
Osteoarthritis, Knee, Inflammation

What participants receive

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

  • Circuit training protocolOther

    The construction of own model of periodization to be used complies with the biological principle of interdependence volume vs. intensity, and duration of 14 weeks, proposing a week of recuperative exercises after two weeks of stress, gradually increasing the intensity with respective volume settings. This model is based on the concepts described by Turner et al. which concludes in favor of the organization of training adapted to the reality of the public to be trained.

Study groups in NCT02761590
Study groupRoleWhat they receive
Circuit training protocolExperimentalThe CT protocol will be held in three sessions per week for 14 weeks. The volume of work is defined by the training section of time and intensity of effort by the heart rate response to exercise. The construction of own model of periodization to be used complies with the biological principle of interdependence volume vs. intensity, and duration of 14 weeks, proposing a week of recuperative exercises after two weeks of stress, gradually increasing the intensity with respective volume settings. This model is based on the concepts described by Turner et al. that concludes in favor of the organization of training adapted to the reality of the public to be trained.
Receives: Other: Circuit training protocol
Strength training protocolActive comparatorThe strength training protocol was performed in three sessions per week for 14 weeks and divided into three levels. The initial load set for each exercise was based on the one repetition maximum test (1 RM). Strengthening exercises were performed in two sets of 15 repetitions, using 25% 1RM for hip adductors and abductors, and 50% 1RM for the quadriceps and hamstrings, using ankle weights. Exercises for the trunk were performed in 3 10-second series, increasing the duration when participants were able.
Receives: Other: Circuit training protocol
Educational ProtocolNo interventionIn order to provide care, social interaction, and health education, an educational protocol was conducted. This protocol consisted in interactive presentations of 60 minutes, twice a month for 14 weeks, totaling 7 meetings. The topics addressed pathophysiology of osteoarthritis, and American College of Rheumatology (ACR) recommendations on nutrition, posture, and lifestyle.

What is being measured

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

  1. Change from baseline Intermuscular adipose tissue (IMAT) at 14 weeks

    The concentration of intermuscular fat tissue will be measured by computed tomography. The images will be obtained through a CT scanner Multislice (Brilliance CT 16-slice, Phillips), located at the University Hospital of San Carlos. The examination will be conducted by experienced personnel under the supervision of a radiologist, developer of this study.

    The suggested protocol will provide an image related to the mid-thigh area of both legs. Quantification of intermuscular fat quadriceps muscle will be carried out by a slice thickness of 10 mm corresponding to half the distance between the greater trochanter and the intercondylar notch of the femur. The analyzes of the areas will be manually performed using the software OsiriX., And the area of interest selected by a scan, in accordance with the density of tissue decay rates for quantification of adipose tissue present in cm2.

    Measured: baseline and post intervention (week 14 - the analysis will be conducted on the first week immediately after the end of the training

Secondary outcomes (3)
  1. Body composition

    For body composition analysis as it is used absorptiometry apparatus of X-ray Dual Energy (DXA, Hologic Discovery A, Benford, MA) using the three compartment model (lean mass, adipose tissue and body mineral density ), thus allowing to estimate the total body composition and body segment.

    The participant will be placed in the supine position and should remain without moving during the examination. To obtain better image, the subject should not use any type of metal, either as accessories or clothing. The results are transmitted to a connected to the machine computer and the examination of the report will provide data expressed in grams and percentage, are used to analyze data related to adipose tissue (g) Lean Mass (g) of the total composition (g) and percentage arms of adipose tissue (right and left), trunk and legs (right and left), gynoid regions and android beyond the total body composition.

    Measured: baseline and post intervention (week 14 - the analysis will be conducted on the first week immediately after the end of the training

  2. Inflammation and degradation of cartilage biomarkers

    Serum concentrations of IL-1-β, IL-6, TNF-α, IL-10, leptin, adiponectin and sCOMP will be measured by the ELISA (Enzyme-Linked Immuno Sorbent Assay) according to the manufacturers recommendations. Patients will be instructed to perform blood collection in the morning and remain at rest for 30 minutes before collection, especially for the evaluation of sCOMP. To assess the concentration of uCTX-II, participants will be instructed not to perform physical activities in a previous 24-hour period prior to collection, and collect urine in two specific containers (with a capacity of 80 ml each) a sample of the first urine day.

    Measured: baseline and post intervention (week 14 - the analysis will be conducted on the first week immediately after the end of the training

  3. Muscle strength

    The maximum voluntary isometric contraction (MVIC) extension and knee flexion will be measured using a dynamometer handheld (Lafayette Instruments, Lafayette, IN, USA). Previously the tests, familiarization will be performed. To evaluate the strength of the knee extensors, participants remain seated with angle of the hip in 90 ° of flexion and knee angle of 0 ° (full extension), not elastic bands being positioned on the hip to avoid compensation, and evaluation the knee flexors, participants will be asked to stay in the supine position, with hip and knee flexed to be tested at 90 °, legs and ankles relaxed on the bench, extended contralateral leg on the stretcher and arms extended beside the body.

    Measured: baseline and post intervention (week 14 - the analysis will be conducted on the first week immediately after the end of the training

Timeline

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

  1. First posted4 May 2016 (estimated)
  2. Study startMar 2015
  3. Primary completionDec 2018 (estimated)
  4. Study completionFeb 2019 (estimated)

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
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
Double blind
Who is masked
Investigator, Outcomes assessor
Enrolment
60 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT02761590
Sponsor's protocol ID
UFSCar - 2016
Status last verified
Oct 2018
First submitted
28 Apr 2016
Last updated
11 Oct 2018
Results posted
No
Data monitoring committee
Yes
Individual data sharing
Undecided

Publications

  • de Almeida AC, Aily JB, Pedroso MG, Goncalves GH, Pastre CM, Mattiello SM. Reductions of cardiovascular and metabolic risk factors after a 14-week periodized training model in patients with knee osteoarthritis: a randomized controlled trial. Clin Rheumatol. 2021 Jan;40(1):303-314. doi: 10.1007/s10067-020-05213-1. Epub 2020 Jun 8.

    PubMed 32514678
  • de Almeida AC, Aily JB, Pedroso MG, Goncalves GH, de Carvalho Felinto J, Ferrari RJ, Pastre CM, Mattiello SM. A periodized training attenuates thigh intermuscular fat and improves muscle quality in patients with knee osteoarthritis: results from a randomized controlled trial. Clin Rheumatol. 2020 Apr;39(4):1265-1275. doi: 10.1007/s10067-019-04892-9. Epub 2019 Dec 21.

    PubMed 31865505
  • de Almeida AC, Pedroso MG, Aily JB, Goncalves GH, Pastre CM, Mattiello SM. Influence of a periodized circuit training protocol on intermuscular adipose tissue of patients with knee osteoarthritis: protocol for a randomized controlled trial. BMC Musculoskelet Disord. 2018 Nov 30;19(1):421. doi: 10.1186/s12891-018-2325-y.

    PubMed 30497420

Questions about this trial

What is this clinical trial studying?

A study testing Circuit training protocol in people with Knee Osteoarthritis, run by Universidade Federal de Sao Carlos at 1 site in Brazil.

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 3 inclusion and 14 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: status not confirmed, as of the sponsor's last update on 11 Oct 2018. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Brazil. 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?

Results are not available in the source record.

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 Intermuscular adipose tissue (IMAT) at 14 weeks (time frame: baseline and post intervention (week 14 - the analysis will be conducted on the first week immediately after the end of the training). 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 NCT02761590, which also lists 3 linked publications.

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 11 Oct 2018.

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