Plyometric Exercises Versus Isometric Exercises With Theraband Elastic Band in Water Polo Players

NCT03872076 | Completed

• 1 other identifier: WATPLIO
• Study Type: interventional
• Target: 25
• Locations: 1 country
• Sites: 1

Brief Summary

Introduction: The improvement of strength affects muscle volume, dynamic stability and sports performance in water polo athletes. Plyometric exercises can improve biomechanics, performance and the most explosive actions during sports. The work done with elastic bands will increase the effectiveness and the resistance on the isometric exercises developed. Objectives: To evaluate the effectiveness of plyometric exercises in the increase of quadriceps muscle strength, volume and stability dynamic in female athletic of water polo players from 18 to 25 years old. Study Design: A randomized, multicentric, single-blind clinical study with a follow-up period. Methodology: 25 water polo players will be recruited and randomly assigned to the two study groups: experimental (plyometric exercises plus isometric exercises with elastic bands) and control (isometric exercises with elastic bands). The intervention will last for 8 weeks, with 3 weekly sessions, of 15 minutes each. The study variables will be: strength (measured with the RM test), muscle volume (using anthropometry), and dynamic stability (through the SEBT test). The analysis of normality will be carried out with the Shapiro Wilk test. In case of homogeneity of the groups, we will use parametric tests: t-student test of repeated measures (difference between evaluations) and ANOVA of repeated means (intra and intersubject effect). Expected Results: It is expected to observe improvement in muscle strength and quadriceps volume, as well as dynamic stability.

Conditions

Muscle Loss

Keywords

Strengthening; Stability; Muscle Volume; Physical Effort; Randomized clinical trial

Outcome Measures

Primary Outcomes (1)

• Change from baseline maximum strength in quadriceps after treatment and at month

  Researchers will use the 1RM test to measure maximum strength by trial and error, taking into account the nRM (number of repetitions) performing a repetition for each series without exceeding 15 maximum repetitions, or even be effective in less than 10 maximum repetitions increasing the load in each series progressively, depending on the abilities of the athletes. We will perform 5 minutes of light activities, then one minute of stretching, heating of eight repetitions to 50% of 1RM, followed by three repetitions at 70% of 1RM. After 5 minutes of the interval, the 1RM test will be performed. The weight will increase progressively 5kg, three to five times until the maximum RM. The assessment of quadriceps muscle strength will be assessed through the full squat exercise. The unit of measurement is the Kg, indicating a greater amount of Kg, a greater maximum force in quadriceps

  Screening visit, within the first seven days after treatment and after one month follow-up visit

Secondary Outcomes (2)

• Change from baseline muscle volume in quadriceps after treatment and at month

  Screening visit, within the first seven days after treatment and after one month follow-up visit

• Change from baseline dynamic stability after treatment and at month

  Screening visit, within the first seven days after treatment and after one month follow-up visit

Study Arms (2)

Plyometric exercises

EXPERIMENTAL

The subjects included in the experimental group will carry out an intervention using plyometric exercises and isometric exercises with elastic band for the quadriceps muscle. Each session will last 15 minutes, taking place for 3 days a week, in a period of 8 weeks. The intervention will be made at the beginning of the training session.

Other: Experimental

Isometric exercises

ACTIVE COMPARATOR

The subjects included in the experimental group will carry out an intervention of isometric exercises with elastic bands for the quadriceps muscle. Each session will last 8 minutes, taking place for 3 days a week, in a period of 8 weeks. The intervention will be made at the beginning of the training session.

Other: Control

Interventions

Experimental OTHER

The Drom Jump technique with the legs flexed will be performed with the patient standing in front of a bench 30 cm high by 100 cm wide. The physiotherapist will be placed lateral to the athlete. The subject will be asked to jump up from the box or bench, with the hip and knees in semi-reflexion, with his hands on his hip and he will be asked for an explosive jump, followed by a jump downwards falling the floor of the same way. The technique of lateral jumps on cones will be carried out by means of unipodal jumps, achieving a distance of 50 cm between cones. The physiotherapist will stand in front of the athlete. The subject will be asked to perform a lateral unipodal explosive jump by flexing the hip and knee.

Also known as: Plyometric exercises

Plyometric exercises

Control OTHER

Elastic bands will be combined with isometric exercises in 3 sets of 10 repetitions each. The exercises they will perform are front squat. On the one hand, separating the legs at the height of the shoulders with hip and knee flexion, with the elastic band above the knees, maintaining the position 20 seconds. In the following exercise, with the elastic band on the ankle, in unipodal support at the same time that the contralateral limb is free of support, the hip will be flexed at 45º with full knee extension, requesting the athlete to keep the tension 20 seconds, performing 3 sets of 10 repetitions.

Also known as: Isometric exercises

Isometric exercises

Eligibility Criteria

• Age: 18 Years - 25 Years
• Sex: female
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Female
• Swimmers with more than 2 years of sports practice
• Age range of 18 to 25 years
• Currently participate in national championships.

You may not qualify if:

• Have some type of musculoskeletal injuries at the time of the study
• Not signed the informed consent document.

Sponsors & Collaborators

• Investigación en Hemofilia y Fisioterapia: lead

Study Sites (1)

Universidad Europea de Madrid

Madrid, Comunity of Madrid, 28670, Spain

Location

MeSH Terms

Conditions

Muscular Atrophy

Interventions

Plyometric Exercise; Exercise

Condition Hierarchy (Ancestors)

Neuromuscular Manifestations; Neurologic Manifestations; Nervous System Diseases; Atrophy; Pathological Conditions, Anatomical; Pathological Conditions, Signs and Symptoms; Signs and Symptoms

Intervention Hierarchy (Ancestors)

Exercise Therapy; Rehabilitation; Aftercare; Continuity of Patient Care; Patient Care; Therapeutics; Physical Therapy Modalities; Physical Conditioning, Human; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Study Officials

• Rubén Cuesta-Barriuso, PhD

  Universidad Europea de Madrid

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: PREVENTION
• Intervention Model: PARALLEL
• Sponsor Type: NETWORK
• Responsible Party: SPONSOR

Study Record Dates

• First Submitted: March 10, 2019
• First Posted: March 12, 2019
• Study Start: March 12, 2019
• Primary Completion: May 15, 2019
• Study Completion: June 20, 2019
• Last Updated: January 27, 2020

Record last verified: 2020-01

Locations

ES (1)