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Whole Body Vibration and External Load Exercise Training on Cardiovascular and Autonomic Function in Obese Individuals

NCT02679898 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 60

Last updated 2016-02-11

No results posted yet for this study

Summary

Obesity is directly related to arterial dysfunction and negatively associated to muscle strength. High-intensity resistance exercise is the favored modality to offset muscle weakness, yet, adverse effects on arterial function (pulse wave velocity, wave reflection, and aortic and brachial blood pressures) have been observed. Conventional unloaded-whole body vibration training (WBVT) has improved arterial function in overweight/obese women but appears to be low-intensity. Nevertheless, the effects of moderate-intensity (by adding external load) WBVT on arterial and muscle function are unknown. Therefore, the purpose of this study was to examine whether loaded-WBVT would induce greater benefits than unloaded-WBVT on arterial and muscle function in young overweight/obese women. Furthermore, we examined whether these changes were similar to healthy lean young women.

Conditions

Interventions

OTHER

Unloaded-Whole Body Vibration (WBVT)

The unloaded-WBVT intervention consists of four leg exercises performed dynamically over a vibrating platform 3 times/week for 6 weeks. Dynamic movements were performed with controlled movements starting from an upright position into a 90 and 120 degree knee angle, wide-stance squat, and maximal heel elevation. The training volume increased progressively by increasing the intensity of the vibration (30-35 Hz; low-high amplitude), duration of exercise (30-60 sec), number of sets per exercise (2-8), and total during of training session, while decreasing the rest periods (60-30 sec).

OTHER

Loaded-Whole Body Vibration (WBVT)

The loaded-WBVT intervention consists of four leg exercises performed dynamically over a vibrating platform 3 times/week for 6 weeks. Importantly, an external load was applied to a weight vest to account for the necessary weight to perform a specific number of repetitions (progressed from 15-8 repetitions maximum during the 6 weeks). Dynamic movements were performed with controlled movements starting from an upright position into a 90 and 120 degree knee angle, wide-stance squat, and maximal heel elevation. The training volume increased progressively by increasing the intensity of the vibration (30-35 Hz; low-high amplitude), duration of exercise (30-60 sec), number of sets per exercise (2-8), and total during of training session, while decreasing the rest periods (60-30 sec).

Sponsors & Collaborators

  • Florida State University

    lead OTHER

Principal Investigators

  • Arturo Figueroa · Florida State University

Study Design

Allocation
RANDOMIZED
Purpose
BASIC_SCIENCE
Masking
SINGLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
25 Years
Sex
FEMALE
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2013-09-30
Primary Completion
2015-08-31
Completion
2015-08-31

Countries

  • United States

Study Locations

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Entities

Diseases

Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02679898 on ClinicalTrials.gov