Immediate and 24-hour Effects of HyperVolt, Body Tempering, and Cupping Compared to Stretching on Hamstring Flexibility

Summary

The purpose of this study is to compare the effects of the HyperVolt percussive massage device, body tempering, and dry cupping to static stretching of the hamstrings of healthy adults aged 18-39 years on the active knee extension and back saver sit-and-reach test.While these modalities are frequently used in healthcare settings there is a paucity of research regarding effectiveness. If the effects on flexibility are comparable, patients could save time and money by performing static stretching.

Conditions

• Hamstring Contractures
• Muscle Tightness

Interventions

DEVICE

Hypervolt

HyperVolt Percussive Massage Device: this will be performed by a physical therapist while the participant is prone. The physical therapist will apply a vibrating device to the back of the thigh with moderate pressure while continuously moving the device for 5 minutes.

DEVICE

Body Tempering

Body Tempering:this will be performed by a physical therapist while the participant is prone. The physical therapist will apply a moderately heavy metal device to the back of the thigh while continuously moving the device for 5 minutes.

DEVICE

Dry cupping

Dry Cupping: This will be performed by a physical therapist while the participant is prone. The physical therapist will apply several negative pressure devices to the back of your thigh for 5 minutes.

OTHER

Static stretching

Participants will perform a static stretch on their lower extremity. This stretch will be performed by having the participant loop a strap around their heel and grasping it with both hands followed by pulling the strap to raise the fully extended leg into hip flexion. The participant will be instructed to lift the leg until they reach their maximal tolerable point and then to hold the position for 30 seconds. They will then lower the extremity to the table and rest for 15 seconds This self-stretch sequence will be performed for 7 cycles so that the total intervention was equal to the intervention time of the other group (5 minutes).7

Sponsors & Collaborators

• University of South Carolina

  lead OTHER

Principal Investigators

• Cathy F Arnot, DPT · University of South Carolina

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Max Age

39 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2023-04-03

Primary Completion

2023-11-30

Completion

2023-11-30

Countries

• United States

Study Locations