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Clinical Trial Details — Status: Completed

Administrative data

NCT number NCT05824780
Other study ID # UV-INV_ETICA-1523453
Secondary ID
Status Completed
Phase N/A
First received
Last updated
Start date March 6, 2023
Est. completion date October 20, 2023

Study information

Verified date November 2023
Source University of Valencia
Contact n/a
Is FDA regulated No
Health authority
Study type Interventional

Clinical Trial Summary

Weightlifting is an increasingly used intervention in the sport field to improve both function and performance outcomes. However, the effects in a pediatric and adolescent population are not well described, and require further research to elucidate the benefits and potential adverse effects compared to other strength training methods, such as plyometric training.


Description:

Highly trained male and female adolescent basketball athletes aged 12-16 years will be recruited for the study. Participants will be randomly assigned to a 4-week program (12 sessions) of weightlifting or plyometric training. The training programs will be identical in sets and repetitions, progressively evolving each week towards fewer sets and fewer repetitions. The training intensity will be the same in both groups, calculated from the RM, starting at 70% in the first week and progressing by 5% each week until a final intensity of 85% in the last week. Therefore, both interventions evolve towards sessions with fewer sets and repetitions and higher loads. The weightlifting intervention refers to the performance of highly technical and explosive multi-joint strength exercises. The program consists of six basic weightlifting maneuvers (hang power clean, overhead squat, hang power snatch, clean, split jerk, snatch), two of which are performed in each of the three weekly sessions. The order of execution of the exercises in the weekly sessions is always the same. To ensure the correct execution of the maneuvers, before starting the intervention, a brief familiarization program will be carried out. This consists of an explanation of the exercises by the research staff and practice by the participants with simultaneous correction. The plyometric program follows the same structure, consisting in a total of 6 exercises (Max countermovement jump, double leg side jump, maximum squat jump, dropjump (20cm), single leg hurdle jump, doble leg multi hop) performed in groups of 2 for each weekly training session. The design of the intervention program is based on previously published related articles.Training sessions will be supervised by a member of the research team with expertise in strength and conditioning in basketball athletes.


Recruitment information / eligibility

Status Completed
Enrollment 46
Est. completion date October 20, 2023
Est. primary completion date May 30, 2023
Accepts healthy volunteers Accepts Healthy Volunteers
Gender All
Age group 12 Years to 16 Years
Eligibility Inclusion Criteria: - Healthy highly-trained basketball athletes Exclusion Criteria: - Current injury or complaining limiting sports activity - No histoy of injury receiving non-operative treatment in the last 3 months - No history of injury receiving operative treatment in the last 9 months - Subjects who have previously carried out weightlifting training for at least 4 weeks of duration. - Subjects physically unable to perform a strength training program

Study Design


Related Conditions & MeSH terms


Intervention

Other:
Exercise training
4-week weightlifting strength training

Locations

Country Name City State
Spain Fernando Domínguez Navarro Valencia

Sponsors (2)

Lead Sponsor Collaborator
University of Valencia Universidad Europea de Valencia

Country where clinical trial is conducted

Spain, 

Outcome

Type Measure Description Time frame Safety issue
Primary Change from baseline Repetition Maximum at 5 weeks It refeers to the maximum weight that an athlete can lift correctly in one repetition. The maximum weight lifted is recorded in kg. (I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline
Primary Change from baseline Hand Grip at 5 weeks Measured with validated dynamometer equipment, it register the isometric strength that an athlethe perform in a hand grip contraction. Strength is recorded in kg. Three valid measures will be recorded and the mean value will be calculated. (I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline
Primary Change from baseline Lower-limb muscle strength at 5 weeks Force Frame system equipment will be used to assess the isometric strength for lower-limb (hip and knee) muscles. Strength values will be expressed in kg. Three valid measures will be recorded and the mean value will be calculated. I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline
Secondary Change from baseline Ankle Mobility at 5 weeks Check-your motion (R) device (validated) will be used to evaluate ankle dorsiflexion in weigth-bearing. position.Three valid measures will be recorded and the mean value will be calculated. Results will be expressed in cm (I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline
Secondary Change from baseline 20 meters Sprint at 5 weeks From motion cameras, the time (seconds) that an athlete takes to perform a straight line movement of 20 meters at maximum speed will be recorded. (I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline
Secondary Change from baseline Counter movement jump (CMJ) test at 5 weeks CMJ will be used as perfomance-based outcome. Athlete, in standing position, will perform a maximum vertical jump with both hands placed on the hips. The data will be collected with the Chronojump contact platform equipment, (Boscosystem®, Barcelona, Spain), registering the flight height (cm) and power (watts). Three valid measures will be recorded and the mean value will be calculated. (I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline
Secondary Change from baseline Hop test distance at 5 weeks This test will be used to evaluate longitudinal maximum hop performance, registering the distance reached in cm. The procedure will be performed unilaterally with both legs. A tape measure will be used to record the distance traveled. Three valid measures will be registered and the mean will be calculated (I) Baseline: previous week before starting intervention, and (II) 5 weeks after baseline
Secondary Weight Weight will be recorded from a validated electronic scale, expressed in kg. Baseline
Secondary Height The height of the athletes will be measured using the vertical tape measure of a manual scale. Baseline
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