- ICH GCP
- US Clinical Trials Registry
- Clinical Trial NCT03970707
Recovery Kinetics After the Use of Small Sided Games With a Small and Large Number of Players and Large Pitch Area
Investigation on Recovery Kinetics After the Use of Small Sided Games With a Small and Large Number of Players and Large Pitch Area
Study Overview
Status
Conditions
Intervention / Treatment
Detailed Description
Football is an intermittent sport that includes actions of variable intensities and combines elements of physical fitness with technical and tactical skills. The game is characterized by a combination of several short-term movements such as jumps and change of direction. Typically, a player in a soccer game changes his kinetic situation every 4-6 seconds. The mean and maximum heart rate during the fight is approximately 85% and 98% of the maximum heart rate, respectively, while the average oxygen uptake is 70% of the maximum, proving that the aerobic system contributes significantly during the game. In addition, the lactic acid value in the blood ranges from 2 to 14 mM, which proves that also the anaerobic energy system contributes significantly during a game. Based on the above, the training of soccer players must meet the physiological and physiological requirements of the game.
There are two approaches to developing fitness. In the first, there is a distinction between fitness training technical skills and tactics, while the second attempts to achieve all of them at the same time, and for that purpose, the sided games are used. The first approach refers to the literature as a traditional form of physical fitness training and contains the ball and run exercises. It is part of the training unit and separates the physical conditioning from the technique and tactics, resulting in longer training time. Moreover, although this training achieves the necessary physiological adaptations, the piece of game specialization is missing. For this reason, coaches have been interested in the sided games with restrictions, combining physical, technical, and tactical elements. The coach can modify these games to achieve the training goal each time. During training with racing blocks, a similar or even higher heart rate has been observed on soccer players compared with the short-term intermittent exercise. The intensity of the exercise on the sided games is controlled by several variables that the coach can modify according to the training goal. Many variables can affect the training load such as pitch area, the number of players, and other restrictions (e.g., goalkeepers, contact limitation, etc.). In the application of sided games with large dimension and a small number of players, the maximum heart rate can reach 84-90% while with a large number of players it can reach 84-88%. There is a lack of references regarding rehabilitation after the implementation of sided games, and especially after the execution of large-dimension pitch area with a small and large number of athletes. The aim of the proposed study is, therefore, to examine the speed of recovery after training with a large-dimension pitch area with a small and large number of athletes in football.
Study Type
Enrollment (Actual)
Phase
- Not Applicable
Contacts and Locations
Study Locations
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-
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Trikala, Greece, 42100
- SmArT LABORATORY, SCHOOL OF PHYSICAL EDUCATION & SPORTS SCIENCES, UNIVERSITY OF THESSALY
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Participation Criteria
Eligibility Criteria
Ages Eligible for Study
Accepts Healthy Volunteers
Genders Eligible for Study
Description
Inclusion Criteria:
- Absence of any musculoskeletal injury for at least 6 months prior to the study
- No use of any drugs or ergogenic supplements for at least 6 months prior to the study
- Absence of regular soccer training for the last 3 years
Exclusion Criteria:
- Any recent incidence of musculoskeletal injury
- Use of any drugs or ergogenic supplements for the last 6 months
- Regular soccer training for the last 3 years-
Study Plan
How is the study designed?
Design Details
- Primary Purpose: Screening
- Allocation: Randomized
- Interventional Model: Crossover Assignment
- Masking: None (Open Label)
Arms and Interventions
Participant Group / Arm |
Intervention / Treatment |
---|---|
Experimental: Small Number of Players training protocol A
Small Sided Game: 4 vs 4
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8 participants each side game (4vs4), size of pitch area 25*20 m.
In total, 6 consecutive 4-minutes bouts interspersed by a 3-minutes rest between each bout will be executed.
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Experimental: Large Number of Players training protocol B
Small Sided Game: 8 vs 8
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16 participants each side game (8vs8), size of pitch area 25*20 m.
In total, 3 consecutive 8-minutes bouts interspersed by a 1-minutes rest between each bout will be executed.
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No Intervention: Control
No training protocol will be performed, the participants will perform only the measurements for performance and muscle damage and neuromuscular fatigue
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What is the study measuring?
Primary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Differences in changes in delayed onset of muscle soreness (DOMS) between the two training protocols
Time Frame: Pre-protocol, Day 1, Day 2, Day 3
|
Delayed onset of muscle soreness (DOMS) is a muscle damage marker
|
Pre-protocol, Day 1, Day 2, Day 3
|
Differences in changes in maximal concentric strength between the two training protocols
Time Frame: Baseline, Day 1, Day 2, Day 3
|
Maximal concentric strength is used as a muscle damage marker
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Baseline, Day 1, Day 2, Day 3
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Differences in changes in maximal eccentric strength between the two training protocols
Time Frame: Baseline, Day 1, Day 2, Day 3
|
Maximal eccentric strength is used as a muscle damage marker
|
Baseline, Day 1, Day 2, Day 3
|
Differences in changes in creatine kinase (CK) between the two training protocols
Time Frame: Pre-protocol, Day 1, Day 2, Day 3
|
Creatine kinase (CK) is a muscle damage marker
|
Pre-protocol, Day 1, Day 2, Day 3
|
Secondary Outcome Measures
Outcome Measure |
Measure Description |
Time Frame |
---|---|---|
Differences in changes in countermovement jump between the two training protocols
Time Frame: Baseline, Day 1, Day 2, Day 3
|
Countermovement jump is used as a performance marker
|
Baseline, Day 1, Day 2, Day 3
|
Differences in changes in Repeated Sprint Ability (RSA) between the two training protocols
Time Frame: Baseline, Day 1, Day 2, Day 3
|
Repeated Sprint Ability (RSA) is a performance marker
|
Baseline, Day 1, Day 2, Day 3
|
Differences in changes in maximal concentric strength between the two training protocols
Time Frame: Baseline, Day 1, Day 2, Day 3
|
Maximal concentric strength is used as a performance marker
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Baseline, Day 1, Day 2, Day 3
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Differences in changes in maximal eccentric strength between the two training protocols
Time Frame: Baseline, Day 1, Day 2, Day 3
|
Maximal eccentric strength is used as a performance marker
|
Baseline, Day 1, Day 2, Day 3
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Differences in changes in maximal isometric strength between the two training protocols
Time Frame: Baseline, Hour 1, Hour 2, Hour 3
|
Maximal isometric strength is used as a neuromuscular fatigue marker
|
Baseline, Hour 1, Hour 2, Hour 3
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Collaborators and Investigators
Sponsor
Investigators
- Principal Investigator: Ioannis G Fatouros, PhD, DPESS, School of Physical Education, Sport & Dietetics, University of Thessaly
Publications and helpful links
General Publications
- Mohr M, Krustrup P, Bangsbo J. Match performance of high-standard soccer players with special reference to development of fatigue. J Sports Sci. 2003 Jul;21(7):519-28. doi: 10.1080/0264041031000071182.
- Ade JD, Harley JA, Bradley PS. Physiological response, time-motion characteristics, and reproducibility of various speed-endurance drills in elite youth soccer players: small-sided games versus generic running. Int J Sports Physiol Perform. 2014 May;9(3):471-9. doi: 10.1123/ijspp.2013-0390. Epub 2014 Feb 7.
- Fatouros IG, Chatzinikolaou A, Douroudos II, Nikolaidis MG, Kyparos A, Margonis K, Michailidis Y, Vantarakis A, Taxildaris K, Katrabasas I, Mandalidis D, Kouretas D, Jamurtas AZ. Time-course of changes in oxidative stress and antioxidant status responses following a soccer game. J Strength Cond Res. 2010 Dec;24(12):3278-86. doi: 10.1519/JSC.0b013e3181b60444.
- Hill-Haas SV, Dawson B, Impellizzeri FM, Coutts AJ. Physiology of small-sided games training in football: a systematic review. Sports Med. 2011 Mar 1;41(3):199-220. doi: 10.2165/11539740-000000000-00000.
- Owen AL, Wong DP, Paul D, Dellal A. Physical and technical comparisons between various-sided games within professional soccer. Int J Sports Med. 2014 Apr;35(4):286-92. doi: 10.1055/s-0033-1351333. Epub 2013 Sep 10.
Study record dates
Study Major Dates
Study Start (Actual)
Primary Completion (Anticipated)
Study Completion (Anticipated)
Study Registration Dates
First Submitted
First Submitted That Met QC Criteria
First Posted (Actual)
Study Record Updates
Last Update Posted (Actual)
Last Update Submitted That Met QC Criteria
Last Verified
More Information
Terms related to this study
Other Study ID Numbers
- REKI-SSG
Plan for Individual participant data (IPD)
Plan to Share Individual Participant Data (IPD)?
Drug and device information, study documents
Studies a U.S. FDA-regulated drug product
Studies a U.S. FDA-regulated device product
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