Physical capacity and body composition in 13-16 year old soccer players during three-year training cycle

AbstractThe primary aim of the investigation was to study the seasonal changes in body composition in elite European soccer players and identify key playing positional differences. Twenty-two players (age = 24 ± 3.7 years, body height = 180.45 ± 5.12 cm, body mass = 76.66 ± 5.34 kg) were tested. Players’ mass (kg), lean body mass (LBM), fat free mass (FFM), fat mass (FM), muscle girths (MG) and sum of 8 skinfolds (mm) were measured across 5 time points (T0 = Start of pre-season training; T1 = End of pre-season training; T2 = Mid-season; T3 = End of mid-season break; T4 = End of season). Players were divided into their tactical positional roles for analysis. The specific positions they were divided into included defenders (n = 8), midfielders (n = 8) and forwards (n = 6). Assessment of training and matchplay exposure were also recorded. Sites-4, Sites-7, Sites-8 and Fat Mass decreased dramatically from T0 to T1 and T2 in all playing positions (p < 0.01), while no remarkable differences were found between T2, T3 and T4. Except for defenders, calf girth and lean mass were higher in T2, T3 and T4 compared to T0 and T1 (p < 0.01). Midfielders were found to be leaner than forwards and defenders in all data collection time point sessions. Defenders showed higher values in calf girth and lean body mass than midfielders and forwards. It can be concluded from this investigation that there are large variances n positional body composition profiles amongst professional European soccer players. Furthermore, significant changes are prevalent and occur across the season from LBM, FFM, MG and skinfold assessment amongst European elite level soccer players.

Download Full-text

HEMATOLOGICAL PARAMETERS AND BODY COMPOSITION OF SOCCER PLAYERS

Revista Brasileira de Medicina do Esporte ◽

10.1590/1517-869220182403171040 ◽

2018 ◽

Vol 24 (3) ◽

pp. 202-205 ◽

Cited By ~ 1

Author(s):

Allana Kelly Bussollaro ◽

Barbara Nara de Freitas ◽

Raíssa Maria Fadel ◽

Gabriela Siqueira Lara ◽

Priscila Dabaghi Barbosa ◽

...

Keyword(s):

Body Composition ◽

Serum Iron ◽

Binding Capacity ◽

Hematological Parameters ◽

Soccer Players ◽

Mean Corpuscular Hemoglobin ◽

Corpuscular Hemoglobin ◽

Level Of Evidence ◽

Hematological Changes ◽

Post Hoc

ABSTRACT Introduction: Soccer players may experience hematological changes that could be detrimental to their health status. In addition, inadequate body composition may impair performance. Objective: To assess body composition and hematological changes over a year in soccer players. Methods: A retrospective observational study was conducted. Age, weight, height, body composition, blood count, serum iron, serum ferritin, serum transferrin and total iron binding capacity data were collected from the athletes’ medical records in the months of January, May and August of 2015 and January of 2016. Body mass index was also calculated. For the statistical analyses, the Anova and post-hoc Tukey’s post-hoc tests were used for the quantitative variables and the Chi-square test for the qualitative variables. The significance level adopted was p<0.05. Results: Data were evaluated for 51 athletes with a mean age of 23.53 ± 3.11 years, 77.10 ± 6.56 kg, 1.80 ± 0.07 and 15.6 ± 2.89% body fat (BF). We observed significant (p<0.05) changes in mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular hemoglobin concentration, cell size and eosinophils during the period evaluated. Among the athletes, 21.6% had decreased hematocrit levels and 3.9% had hemoglobin levels below the reference range. A BF% greater than 16% was significantly related to serum iron depletion (p = 0.01). Conclusion: Small significant hematological changes during the competitive year were observed, but without significant changes in body composition. Level of Evidence III; Study of nonconsecutive patients; without consistently applied reference ‘‘gold’’ standard.

Download Full-text

Aerobic exercise training at maximal fat oxidation intensity improves body composition, glycemic control, and physical capacity in older people with type 2 diabetes

Journal of Exercise Science & Fitness ◽

10.1016/j.jesf.2019.08.003 ◽

2020 ◽

Vol 18 (1) ◽

pp. 7-13 ◽

Cited By ~ 13

Author(s):

Yan Jiang ◽

Sijie Tan ◽

Zhaoyu Wang ◽

Zhen Guo ◽

Qingwen Li ◽

...

Keyword(s):

Type 2 Diabetes ◽

Body Composition ◽

Glycemic Control ◽

Exercise Training ◽

Older People ◽

Aerobic Exercise ◽

Physical Capacity ◽

Aerobic Exercise Training ◽

Maximal Fat Oxidation

Download Full-text

Differences in anthropometric characteristics between young soccer players (U19) members of the best soccer clubs in Montenegro, Bosnia and Herzegovina, and Kosovo

Pedagogy of Physical Culture and Sports ◽

10.15561/18189172.2020.0103 ◽

2020 ◽

Vol 24 (1) ◽

pp. 21-25

Author(s):

J. Gardasevic ◽

D. Bjelica ◽

I. Vasiljevic

Keyword(s):

Body Composition ◽

Bosnia And Herzegovina ◽

Balkan Peninsula ◽

The Body ◽

Southern Region ◽

Soccer Players ◽

Test Results ◽

Fat Percentage ◽

Anthropometric Characteristics ◽

Post Hoc

Background and Study Aim: The aim of this research was to determine the differences between the young soccer players (U19) in terms of anthropometric characteristics and body composition. We considered players of three the most successful clubs in three countries of the southern region of the Balkan Peninsula. Material and Methods: The first sub-sample of the subjects was consisted of 17 players of OFC Titograd from Montenegro of the average age 17.12±.69. The second sub-sample was consisted of 14 players of FC Siroki Brijeg from Bosnia and Herzegovina of the average age of 18.14±.86. The last sub-sample of the examinees was consisted of 15 players of FC Feronikeli from Kosovo of the average age 18.07±.46. Anthropometric characteristics in the body composition were evaluated by a battery of 11 variables. The significance of the differences between the young soccer players in the anthropometric characteristics and variables for assessing body composition were determined by ANOVA and LSD Post Hoc test. Results: The young soccer players of the three mentioned clubs have statistically significant differences by the two variables that estimate the upper leg skinfold and fat percentage. The young soccer players of OFC Titograd are significantly better in variable upper leg skinfold than other players. The young soccer players of FC Feronikeli are significantly better in variable fat percentage than players of OFC Titograd. Conclusions: The results can be useful for coaches of other clubs for making a comparison of their soccer players with the young soccer players in this research.

Download Full-text

Composición corporal y rendimiento físico de jugadores de fútbol soccer universitario por posición de juego (Body composition and physical performance of college soccer by player´s position)

Retos ◽

10.47197/retos.v0i39.75075 ◽

2020 ◽

pp. 52-57

Author(s):

Oswaldo Ceballos-Gurrola ◽

Fernando Bernal-Reyes ◽

Marquelia Jardón-Rosas ◽

María Cristina Enríquez-Reyna ◽

Jesús Durazo- Quiroz ◽

...

Keyword(s):

Body Composition ◽

Physical Performance ◽

Body Mass ◽

Fat Mass ◽

Physical Characteristics ◽

Soccer Players ◽

Hip Circumference ◽

Soccer Teams ◽

Physical Abilities ◽

The Relationship

Se propuso determinar la relación que existe entre la composición corporal y el rendimiento físico de jugadores de fútbol soccer universitario. Participaron 26 jugadores de sexo masculino con edad promedio de 20.7 años (DT = 1.7), pertenecientes a los equipos representativos de fútbol soccer de dos universidades mexicanas. Se midieron características morfológicas, de composición corporal y físicas para las posiciones de defensa, mediocampo y delantero. Se determinó el nivel de asociación entre las variables. Los resultados muestran que los defensas presentan mayor masa corporal, diámetro de húmero y circunferencia de cadera que los delanteros (p < .05), no así respecto a los jugadores de mediocampo. No se presenta diferencia en la expresión de las capacidades físicas y del porcentaje de masa grasa de los jugadores por posición de juego (p > .05). La masa grasa se asoció de manera directa con la velocidad (.427*, p < .05). Se encontraron diferencias en la masa ósea y corporal por posición de juego entre defensas, mediocampistas y delanteros. Los hallazgos sugieren la influencia de la composición corporal en el rendimiento físico de los participantes. Abstract. The aim of the study was to determine the relationship between body composition and physical performance in college soccer players. Twenty-six male players with an average age of 20.7 years (SD = 1.7), belonging to the representative soccer teams of two Mexican universities participated in the research. Morphological, body composition, and physical characteristics were measured for the defense, midfield, and forward positions. The level of association between variables was determined. The results show that defenders have greater body mass, humerus diameter, and hip circumference than forwards (p <. 05), whereas no differences were found in comparison to midfielders. There is no difference in players’ expression of physical abilities and percentage of fat mass by playing position (p > .05). Fat mass was directly associated with speed (.427 *, p < .05). Differences were found in bone and body mass by playing position between defenders, midfielders, and forwards. The findings hint at an influence of body composition on participants’ physical performance.

Download Full-text