L3/L4 High Velocity Low Amplitude Technique Influence On Baropodometric Pressures In Healthy Young Adults

Escola Superior de Tecnologia da Saúde do Porto

Status: Not yet enrolling

Conditions: Healthy

Treatments: Other: HVLA L3/4; Other: Sham

Study type: Interventional

Funder types: Other

Identifiers

NCT04415996

OST1-004

Details and patient eligibility

About

In this double-blinded study, the objective is to determine the effects of bilateral High Velocity Low Amplitude (HVLA) technique on L3/L4 joint in baropodometric pressures in 60 healthy young adults.

Full description

The postural control it´s a fundamental aspect to understand the human´s capacity to perform activities. These balance is controlled by several mechanisms such as the proprioceptive system of muscles and articulation joints.

It is known that the High Velocity Low Amplitude (HVLA) technique shows biomechanical and neurophysiologic effects.

By saying that, it is importance to understand the effects of the lumbar manipulation on body´s weight distribution. Therefore, there is going to be measure several variables such as center of pressure oscillation , plantar pressure distribution and plantar contact area using a pressure platform.

Enrollment: 50 estimated patients

Sex: All

Ages: 18 to 25 years old

Volunteers: Accepts Healthy Volunteers

Inclusion criteria

• Individuals aged between 18-25 years old;
• Individuals with BMI between 18,5 and 24,9 kg/m2

Exclusion criteria

• Pregnancy;
• With the follow conditions: lumbar discal hernia, spondylolisthesis with neurologic influence, narrowing of medullar canal, rheumatic disease, orthopaedic or neurologic conditions such as diminished sensibility, lack or absence of muscular strength, absence of patellar and/or aquilus reflexes;
• History of chirurgical intervention either on lumbar or lower limbs in the past 6 months;
• History of any trauma on the lumbar spine or lower limbs in the past 6 months;
• Any type of treatment on the lumbar in the previous month: that implicates physiotherapy, osteopathy, chiropractic, myofascial treatment, acupuncture or others;
• Medication that affects the vestibular system (dizziness, vertigo and humming)
• Pain during que experimental study;
• Difference between the length of the lower limbs: above 1.5cm;

Trial design

Primary purpose: Other

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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50 participants in 2 patient groups

HVLA L3/4 Group

Experimental group

Description:

In each participant, blind assessors will perform pre-intervention measurements of dislocation of center of pressure (CoP), plantar pressure mean and plantar contact area in a baropodometric pressure platform. Next, the investigator will perform the HVLA technique in L3/L4 joint articulation. Then, the same measurements before described will be repeated, by the assessors 1 minute after the intervention.

Treatment:

Other: HVLA L3/4

Control Group

Sham Comparator group

Description:

In each participant, blind assessors will perform pre-intervention measurements of dislocation of center of pressure (CoP), plantar pressure mean and plantar contact area in a baropodometric pressure platform. Next, the investigator will perform a Sham technique. Then, the same measurements before described will be repeated, by the assessors 1 minute after the intervention.

Treatment:

Other: Sham