The Effectiveness of Two Different Combinations of Recovery Methods in Elite Professional Young Soccer Players: a RCT
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Soccer
- Sponsor
- University of Vic - Central University of Catalonia
- Enrollment
- 20
- Locations
- 1
- Primary Endpoint
- Neuromuscular or physical performance measures change: jump height
- Status
- Completed
- Last Updated
- 4 years ago
Overview
Brief Summary
The main objective of this project is to compare two recovery protocols, including nutritional and neuromuscular strategies on inmune, physiological and muscular responses.
Detailed Description
A randomized controlled trial will be performed and players will be assigned in one of the two groups after their participation in a football game. The investigators will take baseline measures before the game and post-competition measures immediately after (after recovery intervention) and at 24, 36, 48 hours after the recovery intervention.
Investigators
Eligibility Criteria
Inclusion Criteria
- •Elite young professional football players
- •75 minutes (at least) of game participation
Exclusion Criteria
- •Goalkeepers
- •Injured players
- •Players unable to perform at their best
- •Players under medication
Outcomes
Primary Outcomes
Neuromuscular or physical performance measures change: jump height
Time Frame: Baseline, Immediately after intervention, 24 hours after intervention, 48 hours after intervention, 72 hours after intervention
Counter Movement Jump (CMJ) will be performed to determine the maximum height in centimeters (cm). From standing position with the hands fixed on the hips, participants will be required to bend their knees to a freely chosen angle and perform a maximal vertical jump. Participants will be instructed to keep their body vertical throughout the jump, and to land with knees fully extended. Any jump that will be perceived to deviate from the required instructions will be repeated. Players will jump 3 times as high as possible and the average of the three jumps will be used in subsequent analysis. A 30-s passive recovery phase will be provided between jumps.
Neuromuscular or physical performance measures change: maximal voluntary isometric contraction (MVIC)
Time Frame: Baseline, Immediately after intervention, 24 hours after intervention, 48 hours after intervention, 72 hours after intervention
Isometric Hamstring Strength (IHS). Players will be in a supine position, with the tested leg strapped around the ankle (in a neutral position) and performed a hip extension (with a slight knee flexion 20º, while the non-dominant leg was resting on the floor). Players will place their hands on the wall to avoid sliding on the floor. A strain gauge will be placed between the ankle strap and the cord to evaluate the force (MVIC) exerted at a sampling frequency of 80Hz (Chronojump, Boscosystem®️, Barcelona, Spain). The tester will give all participants the same instructions; "to exert maximal force down to the floor" and continuous and standardized verbal motivation for 5 seconds. Each limb will be tested 3 times, in a randomized order. The assessment of both legs will be separated by 30 seconds while the time separating two trials of the same leg will be 60 seconds . The MVIC will be tested and measured in Newtons (N).
Biochemical/Physiological measures change: urea
Time Frame: Baseline, Immediately after intervention, 24 hours after intervention, 48 hours after intervention, 72 hours after intervention
Urea: umol/L or mg/dL
Biochemical/Physiological measures change: mioglobin
Time Frame: Baseline, Immediately after intervention, 24 hours after intervention, 48 hours after intervention, 72 hours after intervention
Mioglobin: n/mol/L
Biochemical/Physiological measures change: ions
Time Frame: Baseline, Immediately after intervention, 24 hours after intervention, 48 hours after intervention, 72 hours after intervention
Na and K ions: mmol/L
Biochemical/Physiological measures change: creatine kinase
Time Frame: Baseline, Immediately after intervention, 24 hours after intervention, 48 hours after intervention, 72 hours after intervention
Creatine Kinase (CK): units/L
Secondary Outcomes
- Range Of Movement (ROM) measures change: internal rotation of the hip(Baseline, Immediately after intervention, 24 hours after intervention, 48 hours after intervention, 72 hours after intervention)
- Subjective perceptual/well-being questionnaire measures change: RPE(After intervention, 24 hours after intervention, 48 hours after intervention, 72 hours after intervention)
- Subjective perceptual/well-being questionnaire measures change: recovery(Baseline, 24 hours after intervention, 48 hours after intervention, 72 hours after intervention)
- Range Of Movement (ROM) measures change: ankle dorsiflexion degrees(Baseline, Immediately after intervention, 24 hours after intervention, 48 hours after intervention, 72 hours after intervention)
- Subjective perceptual/well-being questionnaire measures change: McLean(Baseline, 24 hours after intervention, 48 hours after intervention, 72 hours after intervention)
- Range Of Movement (ROM) measures change: hamstrings extension ASLR(Baseline, Immediately after intervention, 24 hours after intervention, 48 hours after intervention, 72 hours after intervention)
- Range Of Movement (ROM) measures change: hamstrings extension Jurdan(Baseline, Immediately after intervention, 24 hours after intervention, 48 hours after intervention, 72 hours after intervention)