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

NCT02380664 | Completed

• 1 other identifier: DEP2011-29093
• Study Type: interventional
• Target: 180
• Locations: 0 countries
• Sites: N/A

Brief 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.

Conditions

Body Composition

Keywords

swimmers; adolescent swimmers; whole-body vibration; bone and bones; body composition

Outcome Measures

Primary Outcomes (1)

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

  Change from baseline in body composition at 3 years

Secondary Outcomes (1)

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

  Change from baseline in bone strength and structure at 3 years

Study Arms (4)

Swimmers

NO INTERVENTION

Swimmers that continue their normal swimming activity

WBV swimmers

EXPERIMENTAL

Swimmers that perform a whole-body vibration training

Device: Whole-body vibration (Powerplate®)

Plyometric swimmers

EXPERIMENTAL

Swimmers that perform a plyometric training

Behavioral: Jumping intervention

Sedentary controls

NO INTERVENTION

Controls that do not perform swimming or other physical activities

Interventions

Whole-body vibration (Powerplate®) DEVICE

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.

WBV swimmers

Jumping intervention BEHAVIORAL

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.

Plyometric swimmers

Eligibility Criteria

• Age: 12 Years - 18 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17), Adult (18-64)

You may qualify if:

• 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

You may not qualify if:

• Non-caucasian
• Smoking
• Taking medication affecting bone

Sponsors & Collaborators

• Universidad de Zaragoza: lead

Study Officials

• German Vicente-Rodríguez, PhD

  GENUD Research Group, Universidad de Zaragoza, Spain

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: NONE
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Lecturer

Study Record Dates

• First Submitted: February 23, 2015
• First Posted: March 5, 2015
• Study Start: January 1, 2012
• Primary Completion: November 1, 2015
• Study Completion: December 1, 2015
• Last Updated: March 26, 2025

Record last verified: 2025-03