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Immediate Effects of Two IASTM Tools on Lower-Leg Tissue Stiffness and Ankle Mobility
Sponsor: University of Primorska
Summary
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.
Official title: 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
Key Details
Gender
All
Age Range
18 Years - 40 Years
Study Type
INTERVENTIONAL
Enrollment
45
Start Date
2026-10-01
Completion Date
2027-01-15
Last Updated
2026-09-17
Healthy Volunteers
Yes
Conditions
Interventions
Instrument-Assisted Soft Tissue Mobilization Using a Higher-Cost Tool
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.
Instrument-Assisted Soft Tissue Mobilization Using a Lower-Cost Tool
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.
Locations (1)
University of Primorska, Faculty of Health Sciences, Izola
Izola, Urban Municipality of Koper, Slovenia