Effects of a Strength Training Program in Inertial Machines on Bosco Test in Youth Volleyball Players

December 4, 2023 updated by: Universidad Autónoma de Manizales, Colombia

Effects of a Strength Training Program in Inertial Machines on Squat Jump, Countermovement Jump and Abalakov in Youth Volleyball Players

Objective: To determine the effect of strength training in inertial machines, on SJ CMJ and CMJ with arms; in youth volleyball players from the city of Cartago.

Methodology: A quasi-experimental study of quantitative order was carried out and takes up an empirical-analytical approach, quasi-experimental with pre-test - post-test evaluation. 32 female volleyball players, belonging to the minor category of the Fénix G Club of the city of Cartago Valle

Results: Both groups showed significant improvements in jump height, flight time, strength and power in the protocol that was carried out during the 12 weeks of intervention, but there was no statistically significant difference between the control groups (P = 0.356). , experimental (P = 0.984)

Conclusions:

Keywords: Inertial machines, Squat jump, Countermovent Jump, Abalakov

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Objective: To determine the effect of strength training in inertial machines, on SJ CMJ and CMJ with arms; in youth volleyball players from the city of Cartago.

Methodology: A quasi-experimental study of quantitative order was carried out and takes up an empirical-analytical approach, quasi-experimental with pre-test - post-test evaluation. 32 female volleyball players, belonging to the minor category of the Fénix G Club of the city of Cartago Valle. The techniques that were used were: survey to determine previous injuries, adaptations that athletes may have against strength training and practice time in volleyball, observations were also developed to determine the levels of jumpability of each player, taking into account the Bosco's battery (3). For this we used:

  • My jumps 2 application for IOS devices, it was used to determine the height of the CMJ, SJ, CMJ or ABK, this app was validated in 2015 by the creator, Dr. Carlos Balsalobre (15).
  • Wheeler YOYO XS inertial machine contains an encoder validated by the company Chronjump (16) with this device the training program was carried out with the volleyball players, the program was subjected to expert judgment.

For the collection of information on sociodemographic variables, a data record was carried out (Weight, Height, History of injuries, etc.), in addition to this, a record per athlete for the values of each jump performed.

Results: Both groups showed significant improvements in jump height, flight time, strength and power in the protocol that was carried out during the 12 weeks of intervention, but there was no statistically significant difference between the control groups (P = 0.356). , experimental (P = 0.984)

Conclusions:

Keywords: Inertial machines, Squat jump, Countermovent Jump, Abalakov

Study Type

Interventional

Enrollment (Actual)

30

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Colombia
    • Caldas
      • Manizales, Caldas, Colombia, 170000
        • Universidad Autónoma de Manizales

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

Yes

Description

Inclusion criterio

  • That they express their participation voluntarily in the investigation by filling out their informed consent in the informed settlement.
  • Sports aptitude in the execution of the tests at the time of the intervention and/or evaluation, do not present any surgical intervention in any particular area or region of the lower limbs.
  • Practice time in volleyball of at least 2 years and 1 year in strength training

Exclusion Criteria:

  • Presenting serious sports injuries 6 months before or during the data collection phase (pre-test and post-test) and application of training with inertial machines.
  • not complete with at least 8 weeks of strength training on the inertial machine.

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Experimental: Group 1
Strength training in inertial machines for 2 days and around 12 weeks.
Device: Inertial Strength training
Low speed strength training with classic movements, derived from Olympic lifting and jumping
Other Names:
  • Conventional strength training
Active Comparator: Group 2
Control group developed conventional strength training with squats, deadlifts, hip thrust jumps for 2 days and around 12 weeks.
Device: Inertial Strength training
Low speed strength training with classic movements, derived from Olympic lifting and jumping
Other Names:
  • Conventional strength training

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Independent variable: Inertial machine program
Time Frame: 12 weeks of intervention
Power (watt)
12 weeks of intervention
Dependent variable: countermovement jump, squat jump and abalakov.
Time Frame: 12 weeks of intervention
Squat position with arms at the waist looking for a countermovement and height, the following jump squat position hold for 5 seconds and look for height without taking the hands off the waist, finally the abalakov is a jump with loose arms performing a countermovement and looking height.
12 weeks of intervention

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
To compare the differences pre and post strength training in inertial versus conventional machines, pre-post control experiment on the SJ, CMJ and ABK in youth volleyball players.
Time Frame: 12 weeks of intervention
Squat position with arms at the waist looking for a countermovement and height, the following jump squat position hold for 5 seconds and look for height without taking the hands off the waist, finally the abalakov is a jump with loose arms performing a countermovement and looking height.
12 weeks of intervention

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Universidad Autónoma de Manizales, Colombia

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

September 26, 2022

Primary Completion (Actual)

November 24, 2022

Study Completion (Actual)

February 1, 2023

Study Registration Dates

First Submitted

February 3, 2023

First Submitted That Met QC Criteria

December 4, 2023

First Posted (Actual)

December 6, 2023

Study Record Updates

Last Update Posted (Actual)

December 6, 2023

Last Update Submitted That Met QC Criteria

December 4, 2023

Last Verified

December 1, 2023

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • APPROVAL ACT 07-19-2022_11UAM

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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