Isokinetic Strength Differences In Elite Youth Soccer Players With Respect To Field Position

Malý, Tomáš; Zahálka, František; Malá, Lucía; Cabell, Lee; Bujnovsky, David

doi:10.1249/01.mss.0000487370.63765.26

Cited by 5 publications

(10 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Players require specific skills and superior physical conditioning in order to effectively execute these tasks. Differences in the evaluation of player parameters have been shown to correlate with playing positions, as observed in many studies with respect to different parameters: Differences in total distance covered [ 5 , 10 , 11 ], differences in sprint distance [ 10 , 12 , 13 ], isokinetic strength [ 14 , 15 , 16 ], morphological and body composition [ 17 , 18 ], power assessment [ 19 , 20 ] and VO2max uptake [ 21 , 22 ].…”

Section: Introductionmentioning

confidence: 99%

Physical Fitness Characteristics of High-level Youth Football Players: Influence of Playing Position

Bujnovky

Malý

Ford

et al. 2019

Sports

Self Cite

View full text Add to dashboard Cite

The aim of this study was to determine whether the speed, agility, aerobic and anaerobic capacities of football players varied by playing positions. Elite youth football players (n = 123, age = 15.7 ± 0.5 years) who played in six different positions, as goalkeepers (GK), full backs (FB), central defenders (CD), wide midfielders (WM), central midfielders (CM), and attackers (AT), were assessed. Multivariate analysis of variances was used to compare the following variables: Linear running sprint for 5 m (S5) and 10 m (S10), flying sprint for 20 m (F20), agility 505 test with turn on the dominant (A505D) and non-dominant leg (A505N), agility K-test, Yo-Yo intermittent recovery (YYIR1) test and repeat sprint ability (RSA) test. The results showed significant influence of playing positions on linear-running sprint performance (F1,123 = 6.19, p < 0.01, ηp2 = 0.23). Midfielders reached significantly higher performance levels (CM = 2.44 ± 0.08 s, WM = 2.47 ± 0.13 s) in the A505N test compared to GK (2.61 ± 0.23 s). Outfield players had significantly higher performance in both YYIR1 and RSA tests compared to GK (p < 0.01). The results of this study may provide insightful strategies for coaches and clinical practitioners for developing position-specific conditioning programs.

show abstract

Section: Introductionmentioning

confidence: 99%

Physical Fitness Characteristics of High-level Youth Football Players: Influence of Playing Position

Bujnovky

Malý

Ford

et al. 2019

Sports

Self Cite

View full text Add to dashboard Cite

show abstract

“…A study with female volleyball players found no differences between sexes when comparing BCM [ 8 ]. Therefore, it is speculated that the sport adaptations are similar to male athletes because differences in body composition decrease when individuals are trained, especially in athletes who practice the same sport [ 20 ]. Piccoli et al [ 25 ] compared the BIA measures of bodybuilders with a non-athlete and found reductions in the average resistance / height component of BIVA and small differences in the average reactance / height component.…”

Section: Discussionmentioning

confidence: 99%

“…The modality practiced was categorized into team sports (basketball, flag football, field soccer, futsal, handball, field hockey and volleyball), and individual and / or double sports (track and fields, badminton, judo, swimming, skateboarding and table tennis). Team sports are characterized by intermittent loads, with the aerobic system predominating [ 20 ]. On the other hand, individual or collective sports mainly use the anaerobic system, which can influence the shape and body size characteristics [ 12 ].…”

Section: Methodsmentioning

confidence: 99%

Bioelectrical impedance vector analysis (BIVA) in university athletes

Martins

Gobbo

Silva

2021

Journal of the International Society of Sports Nutrition

View full text Add to dashboard Cite

Background Bioelectrical impedance vector analysis (BIVA) is able to identify differences in hydration status and body composition components, such as body cell mass (BCM) by means of plotting individuals in ellipses, when comparing groups with different characteristics. Objective Compare the confidence and tolerance ellipses of BIVA in individual and team sports athletes with a non-athlete reference population. Design and participants One hundred sixty-seven college athletes (team sports: 117 athletes, individual sports: 50 athletes) aged between 18 and 35 years. Bioelectrical impedance was used to measure resistance (R) and reactance (Xc) values that were used in the BIVA analysis to identify hydration status and BCM, respectively. Hotelling’s t-test was used to identify differences between groups in the confidence ellipses and the comparison was made with a non-athlete Italian reference population. Results There were no differences between male team sports and individual athletes (p = 0.151) and for female athletes (p = 0.624). Most athletes were located in the 50% tolerance ellipses, indicating adequate hydration. Compared to the Italian a non-athlete population, athletes of both sexes presented left impedance vector deviation in the minor axis (Xc) of the tolerance ellipses, indicating higher BCM. Conclusion There were no differences in BIVA between team and individual sports athletes, but most athletes presented an adequate hydration state and, compared to a non-athlete population, the athletes of the present study presented higher BCM.

show abstract

“…This is also reflected further up the talent identification process as Gil et al [7] found that selected goalkeepers were bigger and generally older than nonselected goalkeepers and players. Whilst Mala et al [18] also found keepers were heavier and taller, additional findings showed the goalkeepers they tested had greater absolute amounts of lean body mass, vital for strength and power performances. However, Gil et al [6] measured amateur and youth level goalkeeper's fat percentages and body mass index (BMI) finding that ~10% of goalkeepers tested had higher BMI and body fat percentage scores than sedentary men.…”

Section: Physical Demandsmentioning

confidence: 92%

“…Agility and speed are required for the quick movement of the goalkeeper [5,14] although Gil et al [7] found that goalkeepers performed worse in agility tests over 15 and 30m than outfield players (Goalkeepers: 15m agility 3.03±0.15m/s; 30m agility 6.07±0.35m/s; Outfield players: 15m agility 2.88±0.12m/s; 30m agility 5.81±0.28m/s; 15m agility p<0.01, 30m agility p<0.05) further suggesting that a series of 10 cones placed 3m apart with players slaloming through them was not specific enough to the goalkeepers activity. Mala et al [18] found that goalkeepers had significant differences between dominant and non-dominant legs which can be detrimental to both diving and for jumping [23].…”

Section: Physical Demandsmentioning

confidence: 99%

A review of the key demands for a football goalkeeper

West

2018

International Journal of Sports Science & Coaching

View full text Add to dashboard Cite

This review evaluates previously published findings relating to the needs of a football goalkeeper during match performance. Whilst there has been much interest in some aspects of goalkeepers training, performance analysis and needs analysis, these have been from closed skill penalty situations or reported as comparisons with outfield players. This paper identifies important demands, assesses the implications for coaching and as a result highlights where the focus for effective future research should be to further enhance the development of goalkeeping performance.

show abstract

Isokinetic Strength Differences In Elite Youth Soccer Players With Respect To Field Position

Cited by 5 publications

References 0 publications

Physical Fitness Characteristics of High-level Youth Football Players: Influence of Playing Position

Physical Fitness Characteristics of High-level Youth Football Players: Influence of Playing Position

Bioelectrical impedance vector analysis (BIVA) in university athletes

A review of the key demands for a football goalkeeper

Contact Info

Product

Resources

About