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

NCT ID: NCT06159036

Last Updated: 2023-12-06

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Clinical Phase

NA

Total Enrollment

30 participants

Study Classification

INTERVENTIONAL

Study Start Date

2022-09-26

Study Completion Date

2023-02-01

Brief Summary

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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

Detailed Description

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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

Conditions

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Volleyball Player Female

Keywords

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Keywords: Inertial machines Squat jump Countermovent Jump Abalakov

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

The athletes were divided into two experimental and control groups, for which the experimental group was asked to carry out a protocol that consisted of 12 weeks of intervention divided in a randomized manner, resulting in a pre and post intervention measurement
Primary Study Purpose

PREVENTION

Blinding Strategy

SINGLE

Investigators
One of the main researchers evaluated the post-test without knowing who belonged to the control and experimental group, in addition to this, the other investigator was asked to evaluate the pre-test so as not to have biases or generate some type of modification in the results obtained by both groups.

Study Groups

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Group 1

Strength training in inertial machines for 2 days and around 12 weeks.

Group Type EXPERIMENTAL

Inertial Strength training

Intervention Type DEVICE

Low speed strength training with classic movements, derived from Olympic lifting and jumping

Group 2

Control group developed conventional strength training with squats, deadlifts, hip thrust jumps for 2 days and around 12 weeks.

Group Type ACTIVE_COMPARATOR

Inertial Strength training

Intervention Type DEVICE

Low speed strength training with classic movements, derived from Olympic lifting and jumping

Interventions

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Inertial Strength training

Low speed strength training with classic movements, derived from Olympic lifting and jumping

Intervention Type DEVICE

Other Intervention Names

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Conventional strength training

Eligibility Criteria

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Inclusion Criteria

* 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.
Minimum Eligible Age

15 Years

Maximum Eligible Age

17 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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Universidad Autónoma de Manizales, Colombia

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Universidad Autónoma de Manizales

Manizales, Caldas Department, Colombia

Site Status

Countries

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Colombia

References

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Balsalobre-Fernandez C, Glaister M, Lockey RA. The validity and reliability of an iPhone app for measuring vertical jump performance. J Sports Sci. 2015;33(15):1574-9. doi: 10.1080/02640414.2014.996184. Epub 2015 Jan 2.

Reference Type RESULT
PMID: 25555023 (View on PubMed)

Penailillo L, Blazevich A, Numazawa H, Nosaka K. Metabolic and muscle damage profiles of concentric versus repeated eccentric cycling. Med Sci Sports Exerc. 2013 Sep;45(9):1773-81. doi: 10.1249/MSS.0b013e31828f8a73.

Reference Type RESULT
PMID: 23475167 (View on PubMed)

Beato M, Dello Iacono A. Implementing Flywheel (Isoinertial) Exercise in Strength Training: Current Evidence, Practical Recommendations, and Future Directions. Front Physiol. 2020 Jun 3;11:569. doi: 10.3389/fphys.2020.00569. eCollection 2020. No abstract available.

Reference Type RESULT
PMID: 32581845 (View on PubMed)

Martinez-Aranda LM, Fernandez-Gonzalo R. Effects of Inertial Setting on Power, Force, Work, and Eccentric Overload During Flywheel Resistance Exercise in Women and Men. J Strength Cond Res. 2017 Jun;31(6):1653-1661. doi: 10.1519/JSC.0000000000001635.

Reference Type RESULT
PMID: 28538317 (View on PubMed)

Other Identifiers

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APPROVAL ACT 07-19-2022_11UAM

Identifier Type: -

Identifier Source: org_study_id