Effect of Pulsed Electromagnetic Field Therapy as an Adjunct Modality to Warm-up Exercise

NCT ID: NCT06239103

Last Updated: 2024-02-02

Basic Information

• Recruitment Status: COMPLETED
• Clinical Phase: NA
• Total Enrollment: 20 participants
• Study Classification: INTERVENTIONAL
• Study Start Date: 2022-08-30
• Study Completion Date: 2022-09-14

Brief Summary

The goal of this clinical trial is to assess the effectiveness of pulsed electromagnetic field therapy as an adjunct to warm-up exercises, in healthy participants. Researchers will investigate both the immediate effect of one round of pulsed electromagnetic field therapy (PEMF) and after a warm-up exercise, on participants' range-of-motion (ROM) at the knee and quadriceps' muscle stiffness, measured through shear wave elastography, an ultrasound technique. This may be useful in future interventions to protect against sports injuries.

Participants will have their knee ROM and quadriceps' muscle stiffness measured thrice, once at baseline, once after PEMF/sham treatment, and once after 5 minutes of warm-up stationary bike exercises.

Researchers will compare with sham treatment to see if there are any significant effects from PEMF therapy.

Detailed Description

The goal of this clinical trial is to assess the effectiveness of pulsed electromagnetic field therapy as an adjunct to warm-up exercises, in healthy participants. Researchers will investigate both the immediate effect of one round of pulsed electromagnetic field therapy (PEMF) and after a warm-up exercise, on participants' range-of-motion (ROM) at the knee and quadriceps' muscle stiffness, measured through shear wave elastography, an ultrasound technique. This may be useful in future interventions to protect against sports injuries.

Participants will have their knee ROM and quadriceps' muscle stiffness measured thrice, once at baseline, once after PEMF/sham treatment, and once after 5 minutes of warm-up stationary bike exercises.

• Baseline measurement of knee ROM and quadriceps' muscle stiffness
• Receive PEMF for ten minutes around their knee joint
• Interim measurement of knee ROM and quadriceps' muscle stiffness
• Perform 5 minutes of warm-up exercise on a stationary bike
• Final measurement of knee ROM and quadriceps' muscle stiffness

Researchers will compare with sham treatment to see if there are any significant effects from PEMF therapy.

Conditions

Knee Range-of-motion; Quadriceps Muscle Stiffness

Study Design

• Allocation Method: RANDOMIZED
• Intervention Model: PARALLEL
• Primary Study Purpose: PREVENTION
• Blinding Strategy: TRIPLE

Study Groups

PEMF treatment arm

Participants receive PEMF therapy. During this, the participant is seated with their right leg extended and with the bore of the PEMF machine between their knee and hip joints, with their left leg at rest. PEMF was applied at 1 mT, 15 Hz for 10 minutes.

Group Type: EXPERIMENTAL

Pulsed electromagnetic field therapy

Intervention Type: DEVICE

Pulsed electromagnetic field therapy for 10 minutes, using a PEMF device, at 1 mT, 15 Hz.

Control arm

Participants receive sham therapy, where the PEMF machine does not apply the pulsed electromagnetic waves. However, during this, the participant is kept in the same position as those in the treatment arm.

Group Type: SHAM_COMPARATOR

Sham treatment

Intervention Type: DEVICE

Sham treatment, using the same PEMF device

Interventions

Pulsed electromagnetic field therapy

Pulsed electromagnetic field therapy for 10 minutes, using a PEMF device, at 1 mT, 15 Hz.

Intervention Type: DEVICE

Sham treatment

Sham treatment, using the same PEMF device

Intervention Type: DEVICE

Eligibility Criteria

Inclusion Criteria

• Aged between 18 and 40
• Obtained written informed consent

Exclusion Criteria

• History of major musculoskeletal or locomotor system disorder of lower limb
• History of traumatic or non-traumatic injury of lower limb
• History of surgical intervention of lower limb in the past 1 year
• Under any rehabilitation program at the time of investigation
• Contraindicated to physical exercises

• Minimum Eligible Age: 18 Years
• Maximum Eligible Age: 40 Years
• Eligible Sex: ALL
• Accepts Healthy Volunteers: Yes

Sponsors

Chinese University of Hong Kong

OTHER

Sponsor Role: lead

Responsible Party

Justine Tin Nok Chan

Medical Student Researcher

Responsibility Role: PRINCIPAL_INVESTIGATOR

Principal Investigators

Justine Tin Nok Chan

Role: PRINCIPAL_INVESTIGATOR

University of Cambridge

Locations

CUHK-ORT Sports Injury Research Laboratory

Hong Kong, , Hong Kong

Countries

Hong Kong

Other Identifiers

202.616-T

Identifier Type: -

Identifier Source: org_study_id