Recovery Kinetics After the Use of Small Sided Games With a Small and Large Number of Players and Large Pitch Area

Sided Games in Soccer Training Clinical Trial

Official title:

Investigation on Recovery Kinetics After the Use of Small Sided Games With a Small and Large Number of Players and Large Pitch Area

Clinical Trial Details — Status: Active, not recruiting

Administrative data

• NCT number: NCT03970707
• Other study ID #: REKI-SSG
• Status: Active, not recruiting
• Phase: N/A
• Start date: August 30, 2019
• Est. completion date: September 30, 2020

Study information

• Verified date: March 2020
• Source: University of Thessaly
• Contact: n/a
• Is FDA regulated: No
• Study type: Interventional

Clinical Trial Summary

Soccer is an intermittent sport in which the aerobic and anaerobic capacity of the players are both essential. Elite football players perform an average of 150-250 short and intense movements during a match, demonstrating the significant contribution of the anaerobic energy system. Sided-games is a tool to enhance the performance of the aerobic and anaerobic system. This training includes actions such as sprinting, changes of direction, accelerations, decelerations, jumps, and shooting, characterized by a strong eccentric component. Eccentric actions are associated with exercise-induced muscle damage (EIMD). Nevertheless, to date, EIMD responses following a session of sided games training have not yet been investigated. Therefore, the present study aims to examine the speed of recovery after training with a large-dimension pitch area with a small and large number of athletes in football.

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.

Recruitment information / eligibility

• Status: Active, not recruiting
• Enrollment: 10
• Est. completion date: September 30, 2020
• Est. primary completion date: August 30, 2020
• Accepts healthy volunteers: Accepts Healthy Volunteers
• Gender: Male
• Age group: 18 Years to 25 Years

Eligibility

Inclusion Criteria:

1. Absence of any musculoskeletal injury for at least 6 months prior to the study

2. No use of any drugs or ergogenic supplements for at least 6 months prior to the study

3. Absence of regular soccer training for the last 3 years

Exclusion Criteria:

1. Any recent incidence of musculoskeletal injury

2. Use of any drugs or ergogenic supplements for the last 6 months

3. Regular soccer training for the last 3 years-

Related Conditions & MeSH terms

• Sided Games in Soccer Training

Intervention

Other:
• Small Number of Players training protocol A
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.
• Large Number of Players training protocol B
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.

Locations

Country	Name	City	State
Greece	SmArT LABORATORY, SCHOOL OF PHYSICAL EDUCATION & SPORTS SCIENCES, UNIVERSITY OF THESSALY	Trikala

Sponsors (1)

Lead Sponsor	Collaborator
University of Thessaly

Country where clinical trial is conducted

Greece, 

References & Publications (5)

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. — View Citation

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. — View Citation

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. Review. — View Citation

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. — View Citation

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. — View Citation

Outcome

Type	Measure	Description	Time frame	Safety issue
Primary	Differences in changes in creatine kinase (CK) between the two training protocols	Creatine kinase (CK) is a muscle damage marker	Pre-protocol, Day 1, Day 2, Day 3
Primary	Differences in changes in delayed onset of muscle soreness (DOMS) between the two training protocols	Delayed onset of muscle soreness (DOMS) is a muscle damage marker	Pre-protocol, Day 1, Day 2, Day 3
Primary	Differences in changes in maximal concentric strength between the two training protocols	Maximal concentric strength is used as a muscle damage marker	Baseline, Day 1, Day 2, Day 3
Primary	Differences in changes in maximal eccentric strength between the two training protocols	Maximal eccentric strength is used as a muscle damage marker	Baseline, Day 1, Day 2, Day 3
Secondary	Differences in changes in countermovement jump between the two training protocols	Countermovement jump is used as a performance marker	Baseline, Day 1, Day 2, Day 3
Secondary	Differences in changes in Repeated Sprint Ability (RSA) between the two training protocols	Repeated Sprint Ability (RSA) is a performance marker	Baseline, Day 1, Day 2, Day 3
Secondary	Differences in changes in maximal concentric strength between the two training protocols	Maximal concentric strength is used as a performance marker	Baseline, Day 1, Day 2, Day 3
Secondary	Differences in changes in maximal eccentric strength between the two training protocols	Maximal eccentric strength is used as a performance marker	Baseline, Day 1, Day 2, Day 3
Secondary	Differences in changes in maximal isometric strength between the two training protocols	Maximal isometric strength is used as a neuromuscular fatigue marker	Baseline, Hour 1, Hour 2, Hour 3