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

NCT06159036 | Completed

• 1 other identifier: APPROVAL ACT 07-19-2022_11UAM
• Study Type: interventional
• Target: 30
• Locations: 1 country
• Sites: 1

Brief Summary

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

Conditions

Volleyball; Player; Female

Keywords

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

Outcome Measures

Primary Outcomes (2)

• Independent variable: Inertial machine program

  Power (watt)

  12 weeks of intervention

• Dependent variable: countermovement jump, squat jump and abalakov.

  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 Outcomes (1)

• 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.

  12 weeks of intervention

Study Arms (2)

Group 1

EXPERIMENTAL

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

Device: Inertial Strength training

Group 2

ACTIVE COMPARATOR

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

Device: Inertial Strength training

Interventions

Inertial Strength training DEVICE

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

Also known as: Conventional strength training

Group 1; Group 2

Eligibility Criteria

• Age: 15 Years - 17 Years
• Gender Eligibility Details: According to the availability of the subjects.
• Healthy Volunteers: Yes
• Age Groups: Child (0-17)

You may not qualify if:

• 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.

Sponsors & Collaborators

• Universidad Autónoma de Manizales, Colombia: lead

Study Sites (1)

Universidad Autónoma de Manizales

Manizales, Caldas Department, 170000, Colombia

Location

Related Publications (4)

• 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.

  PMID: 25555023 RESULT

• 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.

  PMID: 23475167 RESULT

• 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.

  PMID: 32581845 RESULT

• 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.

  PMID: 28538317 RESULT

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: INVESTIGATOR
• Masking Details: 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.
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Model Details: 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

Study Record Dates

• First Submitted: February 3, 2023
• First Posted: December 6, 2023
• Study Start: September 26, 2022
• Primary Completion: November 24, 2022
• Study Completion: February 1, 2023
• Last Updated: December 6, 2023

Record last verified: 2023-12

Data Sharing

• IPD Sharing: Will not share

Locations

CO (1)