The Efficacy of Focus Extracorporeal Shock Wave Therapy on Hamstring Tightness

The Efficacy of Focus Extracorporeal Shock Wave Therapy on Hamstring Tightness in Healthy Subjects

Status

Completed

Phases

Study type

Interventional

Source

ClinicalTrials.gov

Registry ID

NCT05702697

Enrollment

124

Registered

2023-01-27

Start date

2020-09-01

Completion date

2021-08-01

Last updated

2023-01-27

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Hamstring Tightness

Brief summary

To study efficacy of focus extracorporeal shock wave therapy on the flexibility of hamstring muscles in healthy subjects

Interventions

DEVICEfocus extracorporeal shock wave therapy

F-EWST with 0.15 mJ/mm2 intensity and 6 Hz frequency for 3 weeks. The shocking head was placed at the muscle positions of the long head of the bicep femoris, semitendinosus, and semimembranosus for 1,000, 500, and 500 shocks, respectively, accounting for 2,000 shocks in total/ session/week.

BEHAVIORALHome stretching program

The leaflet on hamstring stretching exercises (in a sitting posture)

Study design

Allocation

RANDOMIZED

Intervention model

PARALLEL

Primary purpose

TREATMENT

Masking

DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender

ALL

Age

18 Years to 65 Years

Healthy volunteers

Yes

Inclusion criteria

* Limited hamstring flexibility; passive knee extension degree \>20 * No underlying disease

Exclusion criteria

* Patients with history of physical therapy in past 3 month * Patient with analgesic drug such as muscle relaxant or NSAID. * Patient with limited hamstring flexibility due to neurological or musculoskeletal diseases. * Patient with cardiac pacemaker, pregnancy, hypercoagulable conditions, severe osteoporosis, malignancy or active infection around intervention site. * Patient with history of chronic knee or back pain * Patient cannot follow home stretching exercise program

Design outcomes

Primary

Measure	Time frame	Description
Passive knee extension test	Immediately after every F-ESWT treatment, for 3sessions	The clinician extends the knee until reaching the maximal tolerable stretch of the hamstring muscle as indicated by the patient with the ipsilateral hip remaining in 90 of flexion. The knee angle is then measured with a goniometer

Secondary

Measure	Time frame
Back-saver sit-and-reach test (BSSR)	Immediately after every F-ESWT treatment, for 3sessions
Sit and reach test (SRT)	Immediately after every F-ESWT treatment, for 3sessions
Toe touch test (TT)	Immediately after every F-ESWT treatment, for 3sessions

Countries

Thailand

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026