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Immediate Effects of Two IASTM Tools on Lower-Leg Tissue Stiffness and Ankle Mobility

16 settembre 2026 aggiornato da: Žiga Kozinc, University of Primorska

Acute Effects of Instrument-Assisted Soft Tissue Mobilization Using Lower-Cost and Higher-Cost Tools Lower-Leg Tissue Stiffness and Ankle Dorsiflexion Range of Motion in Healthy Adults: A Randomized Controlled Trial

This randomized controlled trial will investigate the immediate effects of instrument-assisted soft tissue mobilization (IASTM) performed with two different commercially available tools on posterior lower-leg tissue stiffness and ankle dorsiflexion range of motion in healthy young adults. Participants will be randomly allocated to one of three parallel groups: IASTM using a higher-cost tool, IASTM using a lower-cost tool, or passive rest without IASTM.

Tissue stiffness at predefined posterior lower-leg sites and ankle dorsiflexion range of motion will be assessed before and immediately after the intervention or equivalent rest period. A single lower limb will be assessed in each participant. Participants receiving IASTM will additionally rate the pleasantness of the intervention and their perceived relaxation after the intervention.

The study will determine whether IASTM produces immediate changes in tissue stiffness and ankle dorsiflexion compared with passive rest and whether these effects differ between the two IASTM tools.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

Healthy adults aged 18 to 30 years will be randomly allocated to one of three parallel groups: higher-cost IASTM, lower-cost IASTM, or passive control. Only one lower limb will be assessed in each participant; the contralateral limb will not serve as a control.

Before and immediately after the intervention or control period, tissue stiffness will be assessed using MyotonPRO (Myoton AS, Tallinn, Estonia) at four predefined locations: the medial gastrocnemius, lateral gastrocnemius, soleus, and Achilles tendon. Gastrocnemius measurement locations will be identified at one-third of the respective anatomical reference distances described in the protocol. The soleus measurement will be performed medially at one-third of the distance from the medial malleolus toward the medial femoral condyle. The Achilles tendon will be assessed 2 cm proximal to the calcaneus. Two consecutive measurements will be obtained at each site at each assessment, and their mean will be used for analysis.

Ankle dorsiflexion range of motion will be assessed using a digital inclinometer positioned on the lateral aspect of the lower leg during a weight-bearing lunge performed while maintaining the assessed knee extended and the heel in contact with the floor.

Participants in either IASTM group will receive a six-minute standardized treatment of the posterior lower-leg region. The first minute will consist of familiarization with the instrument, desensitization, and application of IASTM cream. This will be followed by five minutes of treatment using long gliding strokes along the direction of the muscle fibers, with the instrument held at approximately a 45-degree angle. Treatment intensity will be adjusted to produce slight pain or moderate discomfort. The treatment protocol will be identical between IASTM groups except for the tool used.

Participants allocated to the control group will rest passively for an equivalent six-minute period without receiving IASTM. Participants receiving IASTM will rate intervention pleasantness and perceived relaxation immediately after treatment using 0-to-10 numerical rating scales.

Tipo di studio

Interventistico

Iscrizione (Stimato)

45

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Luoghi di studio

    • Urban Municipality of Koper
      • Izola, Urban Municipality of Koper, Slovenia, 6310
        • University of Primorska, Faculty of Health Sciences, Izola
        • Contatto:

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto

Accetta volontari sani

Sì

Descrizione

Inclusion Criteria:

  • Age 18 to 40 years
  • Healthy volunteer
  • Willing and able to provide written informed consent

Exclusion Criteria:

  • Current or previous lower-limb injury
  • Neuromuscular disorder
  • Neurological disorder

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Scienza basilare
  • Assegnazione: Randomizzato
  • Modello interventistico: Assegnazione parallela
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Sperimentale: Higher-Cost IASTM
Participants will receive a standardized six-minute IASTM intervention to the posterior lower-leg region using the higher-cost IASTM tool. The first minute will include familiarization, desensitization, and application of IASTM cream, followed by five minutes of standardized treatment.
A six-minute standardized IASTM intervention applied to the posterior lower-leg region using a higher-cost IASTM tool. The first minute consists of familiarization, desensitization, and application of IASTM cream, followed by five minutes of long gliding strokes along the direction of the muscle fibers. The instrument is held at approximately 45 degrees and treatment intensity is adjusted to slight pain or moderate discomfort.
Comparatore attivo: Lower-Cost IASTM
Participants will receive the same standardized six-minute IASTM intervention to the posterior lower-leg region using the lower-cost IASTM tool. Treatment duration, technique, instrument angle, treated region, and intensity will be matched to the higher-cost IASTM group.
The same six-minute standardized IASTM intervention as in the higher-cost tool condition, performed using a lower-cost IASTM tool. Treatment duration, treated region, stroke direction, instrument angle, and target intensity are standardized between the two IASTM interventions.
Nessun intervento: Passive Control
Participants will rest passively for six minutes without receiving IASTM. Measurements will be performed before and immediately after the rest period using the same procedures as in the intervention groups.

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Change From Baseline in Medial Gastrocnemius Stiffness
Lasso di tempo: Baseline and immediately after the 6-minute intervention or rest period
Tissue stiffness will be measured using MyotonPRO and expressed in N/m. Two consecutive measurements will be obtained at each assessment and averaged.
Baseline and immediately after the 6-minute intervention or rest period
Change From Baseline in Lateral Gastrocnemius Stiffness
Lasso di tempo: Baseline and immediately after the 6-minute intervention or rest period
Tissue stiffness will be measured using MyotonPRO and expressed in N/m. Two consecutive measurements will be obtained at each assessment and averaged.
Baseline and immediately after the 6-minute intervention or rest period
Change From Baseline in Soleus Stiffness
Lasso di tempo: Baseline and immediately after the 6-minute intervention or rest period
Tissue stiffness will be measured using MyotonPRO and expressed in N/m. The measurement site will be located medially at one-third of the distance from the medial malleolus toward the medial femoral condyle. Two consecutive measurements will be obtained and averaged.
Baseline and immediately after the 6-minute intervention or rest period
Change From Baseline in Achilles Tendon Stiffness
Lasso di tempo: Baseline and immediately after the 6-minute intervention or rest period
Achilles tendon stiffness will be measured using MyotonPRO and expressed in N/m at a predefined site 2 cm proximal to the calcaneus. Two consecutive measurements will be obtained and averaged.
Baseline and immediately after the 6-minute intervention or rest period
Change From Baseline in Ankle Dorsiflexion Range of Motion
Lasso di tempo: Baseline and immediately after the 6-minute intervention or rest period
Ankle dorsiflexion range of motion will be measured in degrees using a digital inclinometer positioned on the lateral aspect of the lower leg during a weight-bearing lunge with the assessed knee maintained in extension and the heel in contact with the floor.
Baseline and immediately after the 6-minute intervention or rest period

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Perceived Pleasantness of IASTM
Lasso di tempo: Immediately after the 6-minute IASTM intervention
Participants receiving IASTM will rate the pleasantness of the intervention on an 11-point numerical rating scale ranging from 0 to 10, with 0 representing the lowest possible pleasantness and 10 representing the highest possible pleasantness.
Immediately after the 6-minute IASTM intervention
Perceived Relaxation After IASTM
Lasso di tempo: Immediately after the 6-minute IASTM intervention
Participants receiving IASTM will rate their perceived relaxation after the intervention on an 11-point numerical rating scale ranging from 0 to 10, with 0 representing the lowest possible relaxation and 10 representing the highest possible relaxation.
Immediately after the 6-minute IASTM intervention

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Sponsor

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

1 ottobre 2026

Completamento primario (Stimato)

15 dicembre 2026

Completamento dello studio (Stimato)

15 gennaio 2027

Date di iscrizione allo studio

Primo inviato

10 settembre 2026

Primo inviato che soddisfa i criteri di controllo qualità

10 settembre 2026

Primo Inserito (Effettivo)

16 settembre 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

17 settembre 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

16 settembre 2026

Ultimo verificato

1 settembre 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • UPFVZ-IASTM-2026

Piano per i dati dei singoli partecipanti (IPD)

Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?

SÌ

Descrizione del piano IPD

De-identified individual participant data underlying the results reported in the publication will be made available upon reasonable request. After publication of scientific manuscript, the data will also be uploaded to a trusted repository (Zenodo.org).

Periodo di condivisione IPD

Data will become available following publication of the main study results and will remain available for at least 5 years.

Criteri di accesso alla condivisione IPD

Data will be made available to researchers upon reasonable request to the corresponding author. Requests should include a brief description of the proposed analysis and intended use of the data. Data will be shared following approval by the study investigators and, where applicable, completion of an appropriate data-sharing agreement.

Tipo di informazioni di supporto alla condivisione IPD

  • STUDIO_PROTOCOLLO
  • LINFA
  • CODICE_ANALITICO

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

No

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .