Plantar Stimulation, Whole-Body Vibration, and Baduanjin for Muscle Activation
Trial statusRecruiting
Trial phaseNot applicable
Trial typeInterventional
Biological sexAll
Age18-25
SponsorNanfang Hospital, Southern Medical University
About this trial
This study will examine how different short-term exercise and vibration conditions affect lower-limb muscle activity in young adults with flat feet and young adults with normal feet.
Participants will complete several conditions, including whole-body vibration, whole-body vibration combined with plantar stimulation under different areas of the foot, and a Baduanjin heel-raise exercise. Surface electromyography sensors will be placed on the skin over selected lower-limb muscles to record muscle activity before and during each condition. Each participant will complete all study conditions in a balanced order.
This study does not aim to treat flat feet or evaluate long-term clinical benefits. The purpose is to collect preliminary information on immediate muscle activation and foot discomfort, which may help design future studies on foot-related exercise, plantar stimulation, and rehabilitation training.
Eligibility criteria
This trial accepts healthy volunteersQualifiers
College students aged 18 to 25, regardless of gender
agree to participate in the study and voluntarily sign the informed consent form
and are deemed suitable to participate in this study by the researchers.
Disqualifiers
Persons with severe cardiovascular diseases, motor dysfunction or cognitive disorders
persons who have suffered severe trauma or been hospitalized recently and are unsuitable for exercise testing
persons with congenital lower limb or spinal deformities affecting foot posture other than flatfoot
persons with a medical history of muscular, neurological or skeletal system disorders affecting foot posture other than flatfoot
Trial design
Design model
Crossover
Treatments tested in this trial
Whole-body Vibration Training,Whole-Body Vibration With Regional Plantar Stimulation,Baduanjin
Other interventionParticipants will complete three types of intervention conditions. In the whole-body vibration condition, participants will stand barefoot on a vibration platform with feet about 20 cm apart and knees flexed at 20°-25°. Vibration will be delivered at 20 Hz and 2 mm for 60 seconds. In the whole-body vibration with regional plantar stimulation condition, the same vibration parameters and posture will be used, while a plantar stimulation module is placed on the platform. Four plantar regions will be stimulated separately: the toe region, metatarsal head region, medial plantar region, and lateral plantar region. In the Baduanjin condition, participants will perform a heel-raise movement derived from Baduanjin under professional guidance, completing six repetitions within 60 seconds.
Treatment groups
30 Participants
are divided into 2 treatment groupsGroup A: Flatfoot GroupExperimental treatment 1 intervention
Group B: Normal Foot GroupActive comparator 1 intervention
Trial outcomes
Primary outcomes
1
Root Mean Square Value
Electrodes were placed per SENIAM standards (2000 Hz sampling, 20-450 Hz band-pass and 50 Hz band-stop filtering). Data were collected during a 30 s resting baseline and the 30-60 s stable phase of intervention. After offline full-wave rectification, RMS was calculated using a 200 ms sliding window (100 ms step). Mean RMS within each epoch was adopted as the representative value.
Time frame
Day 1: from the resting baseline immediately before each intervention condition through completion of that intervention condition.Other outcomes
1
Integrated Electromyography
discharge during the resting baseline phase (stable signals for 60 consecutive seconds) before each intervention mode and the entire intervention period (60 seconds) during intervention, namely the area under the curve of electromyographic signals after full-wave rectification, which reflects the overall activation level.
Time frame
Day 1: from the resting baseline immediately before each intervention condition through completion of that intervention condition.Sponsors and contacts
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Source ClinicalTrials.gov