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CompletedNCT02380664Updated Mar 26, 2025

Swimming Training Repercussion on Metabolic and Structural Bone Development; Benefits of the Incorporation of Whole Body Vibration or Plyometric Training: The RENACIMIENTO Project

An interventional study of Whole-body vibration (Powerplate®) and Jumping intervention in Body Composition, sponsored by Universidad de Zaragoza. Completed. Open to participants aged 12 Years to 18 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-03-26.

Sponsored by Universidad de Zaragoza · Not applicable, Interventional, and Prevention

From the registry’s dates

  • Registered 3 years 1 month after the study started (first participant enrolled Jan 2012, registered Feb 2015).
Phase
Not applicable
Study type
Interventional
Enrollment
180
Allocation
Randomized
Ages
12 Years to 18 Years
Sex
All
01

Study summary

Swimming training is associated with decreased bone mass and lower bone mass acquisition during growth periods, mainly when compared to other weight-bearing sports. Little information is available in adolescents pointing in the same direction but still controversial.

On the other hand, bone strength do not only depends on bone mass but on bone structure and microarchitecture. The cross sectional area, cortex thickness or trabecular density are important aspects of bone health. There are few studies on the effect of swimming on bone architecture of adolescents. This information is relevant for present and future health of adolescents practicing swimming and for all the organizations promoting this sport. Jumping and whole body vibration training programs seem to elicit important osteogenic effects; however, there is little information on this regard in adolescent population, even less in these adolescents with potentially decreased bone acquisition such as swimmers.

The main aims of this research project are therefore, to analyze the effect of swimming training on bone mass, metabolism, structure and architecture in adolescents analyzing possible relationships among them. Secondly, to test whether including short boots of jumping or whole body vibration may be able to palliate the possible deleterious effects of swimming and facilitate a normal or even healthier bone development. And finally to study the durability of training-related bone gains over time.

02

Conditions studied

  • Body Composition

Keywords

  • swimmers
  • adolescent swimmers
  • whole-body vibration
  • bone and bones
  • body composition
03

In context

Lead sponsor

Universidad de Zaragoza is the lead sponsor of 109 studies on the registry; 19 are open to participants now.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
12 Years to 18 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Inclusion criteria

  • Specific for the swimmers: With a history of training at least 3 years for more than 6 hours per week and currently still training
  • Specific for the control group: Subjects that do not perform more than 3 hours of physical activity per week

Exclusion criteria

Exclusion Criteria:

  • Non-caucasian
  • Smoking
  • Taking medication affecting bone
05

Study design

Phase
Not applicable
Primary purpose
Prevention
Allocation
Randomized
Intervention model
Parallel assignment
Masking
None (open label)
Enrollment
180 participants (actual)

Study arms

  • No intervention
    Swimmers

    Swimmers that continue their normal swimming activity

  • Experimental
    WBV swimmers

    Swimmers that perform a whole-body vibration training

    Device: Whole-body vibration (Powerplate®)

  • Experimental
    Plyometric swimmers

    Swimmers that perform a plyometric training

    Behavioral: Jumping intervention

  • No intervention
    Sedentary controls

    Controls that do not perform swimming or other physical activities

Interventions

  • DeviceWhole-body vibration (Powerplate®)

    Swimmers will perform a 15 minute whole-body vibration training 3 times per week. This intervention will be performed with a Powerplate®. The vibration protocol will be progressive starting with 30 Hz and an amplitude op 4 mm reaching at the end of the protocol 38 Hz and 4 mm amplitude.

  • BehavioralJumping intervention

    Swimmers will perform a jumping intervention, 15 minutes 3 times per week. Jumps will include drop jumps, one leg jumps, squat jumps and countermovement jumps.

06

What researchers measure

Primary outcomes

  1. Change in body composition during 3 years evaluated by dual energy X-ray

    Time frame: Change from baseline in body composition at 3 years

Secondary outcomes

  1. Change in bone strength and structure evaluated by peripheral quantitative computed tomography

    Time frame: Change from baseline in bone strength and structure at 3 years

07

Study locations

No study locations are listed for this record.

08

Updates

Tracking since Sep 25, 2026
No changes since tracking began. The registry record was last updated on Mar 26, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
09

Registry details

Key details

Study ID
NCT02380664
Lead sponsor
Universidad de Zaragoza
Responsible party
German Vicente-Rodríguez (Lecturer, Universidad de Zaragoza) — Principal investigator
First posted
Mar 5, 2015
Start date
Jan 2012
Primary completion
Nov 2015
Completion
Dec 2015
Last update
Mar 26, 2025

Study contacts

German Vicente-Rodríguez, PhD
principal investigator · GENUD Research Group, Universidad de Zaragoza, Spain
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Mar 2025. You cannot join it, but the record below documents what was studied.

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