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

University of Zaragoza

Status: Completed

Conditions: Body Composition

Treatments: Behavioral: Jumping intervention; Device: Whole-body vibration (Powerplate®)

Study type: Interventional

Funder types: Other

Identifiers

NCT02380664

DEP2011-29093

Details and patient eligibility

About

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.

Enrollment: 180 patients

Sex: All

Ages: 12 to 18 years old

Volunteers: Accepts Healthy Volunteers

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

• Non-caucasian
• Smoking
• Taking medication affecting bone

Trial design

Primary purpose: Prevention

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: None (Open label)

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180 participants in 4 patient groups

Swimmers

No Intervention group

Description:

Swimmers that continue their normal swimming activity

WBV swimmers

Experimental group

Description:

Swimmers that perform a whole-body vibration training

Treatment:

Device: Whole-body vibration (Powerplate®)

Plyometric swimmers

Experimental group

Description:

Swimmers that perform a plyometric training

Treatment:

Behavioral: Jumping intervention

Sedentary controls

No Intervention group

Description:

Controls that do not perform swimming or other physical activities