The main goal of this randomized controlled trial (RCT) is to evaluate the chronic effects of using instep weights on technical, physical (conditional), and perceptual parameters in amateur male soccer players. The secondary objective will be to propose a training methodology using instep weights to enhance athletic performance. The following hypotheses are formulated based on the objectives outlined previously. Hypothesis 1: the use of instep weights will enhance performance in ball striking speed, change of direction ability, and repeated sprint capacity. Hypothesis 2: the use of instep weights will negatively affect performance in ball striking accuracy and ball control. Hypothesis 3: the use of instep weights will not produce adverse effects on perceived exertion, groin pain or reduce maximal adductor, quadriceps and hamstring muscle contraction values.
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AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Hip and Groin Outcome Score (HAGOS)
Timeframe: Pre-intervention (first day of week 1), mid-intervention (first day of week 5), and post-intervention (first day of week 9)
Subjective perceptual well-being questionnaire measures change: RPE
Timeframe: The questionnaire will be administered within the first 15-20 minutes following the conclusion of each training session.
Ball Striking Accuracy Test
Timeframe: Pre-intervention (first day of week 1), mid-intervention (first day of week 5), and post-intervention (first day of week 9)
Ball Striking Velocity Test
Timeframe: Pre-intervention (first day of week 1), mid-intervention (first day of week 5), and post-intervention (first day of week 9)
Change of Direction (COD) and Ball Control
Timeframe: Pre-intervention (first day of week 1), mid-intervention (first day of week 5), and post-intervention (first day of week 9)
Repeated Sprint Ability (RSA)
Timeframe: Pre-intervention (first day of week 1), mid-intervention (first day of week 5), and post-intervention (first day of week 9)
Adductors Maximum Voluntary Contraction (MVC)
Timeframe: Pre-intervention (first day of week 1), mid-intervention (first day of week 5), and post-intervention (first day of week 9)
Knee extensors Maximum Voluntary Contraction (MVC)
Timeframe: Pre-intervention (first day of week 1), mid-intervention (first day of week 5), and post-intervention (first day of week 9)
Knee flexors Maximum Voluntary Contraction (MVC)
Timeframe: Pre-intervention (first day of week 1), mid-intervention (first day of week 5), and post-intervention (first day of week 9)
Body mass
Timeframe: Pre-intervention (first day of week 1), mid-intervention (first day of week 5), and post-intervention (first day of week 9)