IASTM in New York

Instrument-assisted soft tissue mobilization for fascia and muscle that has been restricted so long that hands alone cannot reach it.

Freeing tissue that has stayed restricted.

IASTM stands for instrument-assisted soft tissue mobilization. Dr. Hochung Jeon uses specially shaped instruments to work along fascia, muscle, and tendon, finding the areas that have thickened and stopped sliding freely and mobilizing them. The instrument lets him feel and treat restriction at a depth and precision that fingertips alone struggle to reach.

IASTM is the broader instrument-assisted category, focused on mobilizing restricted tissue. ASTYM is one specific protocol within that family, aimed at tissue regeneration. They are related, they are not interchangeable, and which one you get depends on what your assessment finds.

Targets fascial restriction and chronic soft tissue dysfunction
Instruments reach restriction that hands cannot isolate
The broader instrument-assisted category, with ASTYM as one protocol inside it
Always paired with movement so the tissue keeps its new length
Close-up of a stainless steel soft tissue tool being drawn along a patient's shin at HJ Manhattan Physical Therapy

For chronic tightness that has stopped responding.

When an area has been tight for months, the fascia around it often thickens and stops gliding. That restriction is exactly what IASTM is built to mobilize.

Neck Pain
Shoulder Pain
Lower Back Pain
Hip Pain
Knee Pain
Elbow Pain
Wrist and Hand Pain
Foot and Ankle Pain
Sports Injuries
Musculoskeletal Pain
Fascial Restriction
Long-Standing Muscle Tightness

Scan, mobilize, then move.

Scanning the Tissue

Dr. Jeon runs the instrument over the area to locate the restriction. Restricted fascia feels distinctly different under the instrument, and that is how the treatment area gets defined.

Mobilizing the Restriction

Controlled strokes are worked along the restricted tissue to break up the thickening and restore glide between the layers that had stopped moving independently.

Movement and Home Plan

You move through the newly available range straight away and leave with a short plan that stops the tissue tightening back down between visits.

Tissue that slides again.

Restore the glide between tissue layers and everything built on top of it, from walking to lifting, gets easier.

Fascial Restriction Released

Thickened fascia is mobilized so the layers underneath can move independently again.

Easier, Fuller Movement

Range that felt blocked or heavy opens up as the restriction lets go of the tissue around it.

Relief in Long-Standing Areas

Chronic tightness that never responded to stretching or rest often shifts once the tissue is mobilized.

Better Response to Exercise

Tissue that can move responds to strengthening instead of just tightening up again afterward.

What patients say.

"Im giving 5 stars to amazing physical therapist Jeon..he is highly skilled, caring and compassionate. He is knowledgeable and his exprertise is exceptional."
Alma M. · Google Review

Request an Appointment

HJ Manhattan Physical Therapy accepts most major insurance plans, and your benefits are verified before care begins.

In New York you can see a physical therapist without a doctor's referral, limited to 10 visits or 30 days before a referral is required. Send your details and we will get back to you.

Prefer to call? (332) 296-2123