- ICH GCP
- US Clinical Trials Registry
- Klinisk utprøving NCT03848598
Is There a Mechanistic Reason for the Response or Non-response to Isometric Exercise in Tendinopathy?
In early phase tendinopathy, isometric exercises are seen as ideal to provide pain relief to patients. This approach is mainly based on a paper by Rio et al (2016), where they found that isometric exercises of a certain load magnitude and time (5 repetitions of 45 second hold at 70% of maximum) gave 100% pain relief for 45 minutes in patients with patellar tendinopathy. This then helps patients to perform their more heavy load exercises during rehabilitation, which would otherwise be too painful.
Unfortunately, the study of Rio et al only consisted of 6 participants, and recent papers have contradicted the findings. In Achilles tendinopathy, plantar fasciopathy and lateral elbow tendinopathy, the pain relief was not consistently present, with "responders" and "non-responders" being found in these studies. Also, a study yet to be published (poster at conference), replicating Rio et al, also found a heterogeneous response, debunking the "one size fits all" approach that seemed to work.
However, in our understanding, isometric exercises do have a crucial role in early tendinopathy management, but the way the exercise is performed, in which position, what magnitude of load, time under tension, … has an important influence. The same protocol (5 repetitions of 45 second hold at 70% of maximum) might lead to big inter-individual differences. Therefore, there might be a mechanistic reason why some patients respond, and others do not.
Fortunately, the P.I. of this current trial application has recently optimized an ultrasound-based method to quantify local tendon deformation during exercises. The main purpose of this trial is therefore to evaluate the local tendon deformation pattern of patients with tendinopathy during isometric exercises and evaluate whether there is an interindividual difference in pattern between "responders" and "non-responders".
Studieoversikt
Status
Forhold
Intervensjon / Behandling
Studietype
Registrering (Forventet)
Kontakter og plasseringer
Studiesteder
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Vlaams-Brabant
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Leuven, Vlaams-Brabant, Belgia, 3000
- University Hospitals
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Ta kontakt med:
- Stijn Bogaerts
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Deltakelseskriterier
Kvalifikasjonskriterier
Alder som er kvalifisert for studier
Tar imot friske frivillige
Kjønn som er kvalifisert for studier
Prøvetakingsmetode
Studiepopulasjon
Beskrivelse
Inclusion Criteria:
- Clinical diagnosis of patellar tendinopathy, consisting of
- pain located at the proximal part of the patellar tendon
- painful at palpation the proximal part of the patellar tendon
- Numeric Rating Scale > 1/10 with squat on decline (20°) board
Exclusion Criteria:
- previous treatment for patellar tendinopathy
- rupture of patellar tendon on ultrasound
- unclear differential diagnosis with patellofemoral pain
- concomitant neuromuscular disorders
Studieplan
Hvordan er studiet utformet?
Designdetaljer
Kohorter og intervensjoner
Gruppe / Kohort |
Intervensjon / Behandling |
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Responders
Patients suffering from patellar tendinopathy who have complete pain resolution after performing isometric exercises.
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Ultrasound-based speckle tracking to evaluate the local tendon tissue displacement during isometric exercise.
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Non-responders
Patients suffering from patellar tendinopathy who do not have complete pain resolution after performing isometric exercises.
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Ultrasound-based speckle tracking to evaluate the local tendon tissue displacement during isometric exercise.
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Hva måler studien?
Primære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
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Local tendon tissue displacement in three layers of the tendon (deep, middle and superficial layer); as measured by ultrasound-based speckle tracking
Tidsramme: Immediately during isometric exercise
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Millimeter
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Immediately during isometric exercise
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Sekundære resultatmål
Resultatmål |
Tiltaksbeskrivelse |
Tidsramme |
---|---|---|
Non-uniform displacement; as measured by ultrasound-based speckle tracking
Tidsramme: Immediately during isometric exercise
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% (measure for relative displacement of the superficial layer of the tendon versus the deep layer, and then divided by the mean total displacement of the three layers combined)
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Immediately during isometric exercise
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Samarbeidspartnere og etterforskere
Studierekorddatoer
Studer hoveddatoer
Studiestart (Forventet)
Primær fullføring (Forventet)
Studiet fullført (Forventet)
Datoer for studieregistrering
Først innsendt
Først innsendt som oppfylte QC-kriteriene
Først lagt ut (Faktiske)
Oppdateringer av studieposter
Sist oppdatering lagt ut (Faktiske)
Siste oppdatering sendt inn som oppfylte QC-kriteriene
Sist bekreftet
Mer informasjon
Begreper knyttet til denne studien
Nøkkelord
Ytterligere relevante MeSH-vilkår
Andre studie-ID-numre
- SBogaerts
Plan for individuelle deltakerdata (IPD)
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