Efficacy of Plyometric Training Isometric Strength Training on Quadriceps Strength and Functional Performance.

Study Overview
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Brief Summary
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This study aims to investigate the influence of an eight-week plyometric and quadriceps strength training program on muscular strength, sprint, and functional performance in collegiate football players.

Detailed Description
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Sixty collegiate football players aged 18-25 years were recruited, at the university campus. All of them were randomly divided into two experimental and control groups that participated in training for six weeks on alternate days (i.e., three sessions per week), and one control group (n=30) did not train. The control group was instructed to maintain regular activities and avoid any strenuous physical activity during the study. Under the Declaration of Helsinki, participants were informed about the study's possible risks and benefits, and all participants signed informed consent before participation in the study. The ethical sub-committee of the College of applied medical science, Majmaah, Saudi Arabia approved this study (Ethics Number: MUREC-Jan. 25/COM-2021 / 19-5).

Official Title
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Effects of Plyometric Training vs. Isometric Strengthening of Quadriceps on Strength, Sprint Test, and Single-Leg Triple Hop Test in Soccer Players

Conditions
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Football Players

Intervention / Treatment
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* Other: Isometric strength training for 8 week
* Other: Conventional training


Participation Criteria
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Eligibility Criteria
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Inclusion Criteria: • Young players aged between 18 and 25 years required frequent sprinting Exclusion Criteria: Current injury to the lower limb. Surgery affecting lower limb function. Any cardio-respiratory diseases. Impairments of the spine or lower extremities.

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 25 Years

Sexes Eligible for Study
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Male

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Prevention
Allocation: Randomized
Intervention Model: Parallel Assignment
Interventional Model Description: Randomized controlled trial
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Participants in this group will receive isometric strength training.<br>Isometric strength training of the quadriceps femoris muscle for 8 weeks. | Other: Isometric strength training for 8 week<br>* Plyometric training for 8 week<br>* Other names: plyometric training training;Other: Conventional training<br>* Conventional training for 8 week<br>|
| Sham Comparator: Participants in this group will receive plyometric training.<br>Participants in this group will receive plyometric training for 8 weeks. | Other: Isometric strength training for 8 week<br>* Plyometric training for 8 week<br>* Other names: plyometric training training;Other: Conventional training<br>* Conventional training for 8 week<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Maximal Voluntary Isometric Contraction Strength (STN) | Pretest and post intervention strength measure. | After 8 weeks of intervention | 
| Sprint Test (ST) | Pretest and post intervention sprint measure. | After 8 weeks of intervention | 
| Single-Leg Triple Hop Test (SLTH) | Pretest and post intervention single-leg triple hop measure. | After 8 weeks of intervention | 

 Terms related to the study
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Keywords Provided by Centre Hospitalier Valida
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Strength Resisted sprint training, Plyometric training, Function performance, Resisted sprint training