Jump-Land Characteristics and Muscle Strength Development in Young Athletes: A Gender Comparison of 1140 Athletes 9 to 17 Years of Age

2007 ◽  
Vol 2007 ◽  
pp. 300-301
Author(s):  
T. Rowland
Keyword(s):  
Muscle Strength ◽  
Strength Development ◽  
Young Athletes ◽  
Gender Comparison

Jump-Land Characteristics and Muscle Strength Development in Young Athletes

2006 ◽  
Vol 34 (3) ◽  
pp. 375-384 ◽  
Author(s):  
Sue D. Barber-Westin ◽  
Frank R. Noyes ◽  
Marc Galloway
Keyword(s):  
Muscle Strength ◽  
Strength Development ◽  
Young Athletes

scholarly journals The Effectiveness of Biological Maturation and Lean Mass in Relation to Muscle Strength Performance in Elite Young Athletes

2020 ◽  
Vol 12 (17) ◽  
pp. 6696 ◽  
Author(s):  
Paulo Francisco de Almeida-Neto ◽  
Dihogo Gama de Matos ◽  
Adam D. G. Baxter-Jones ◽  
Gilmário Ricarte Batista ◽  
Vanessa Carla Monteiro Pinto ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Lean Mass ◽  
Lower Limb ◽  
Local Effect ◽  
Strength Development ◽  
Young Athletes ◽  
Cross Sectional ◽  
Strength Performance ◽  
Tennis Players ◽  
Lower Limb Strength

This study aimed to identify the interactional relationships between maturation (biological age (BA)) and lean mass on strength development in young athletes from different sports. Using a cross-sectional study design, a sample of 64 young athletes (rowers, swimmers, jiu-jitsu, volleyball, soccer and tennis players) of both sexes (13.6 ± 1.17 years) were recruited. Body composition was assessed using dual energy bone densitometry with X-ray source (DEXA). Strength of upper limbs (ULS), force hand grip (HG), vertical jump (VJ) and jump against movement (CMJ) were recorded. BA was estimated from anthropometrics. BA relationships were identified with upper limb strength in all athletes, and with the lower limb strength of tennis players, only (p < 0.05). An interaction effect between lean mass and BA was found (η2p = 0.753), as was a local effect within the regression models (ƒ2 ≥ 0.33). Athletes with a higher concentration of lean mass had superior upper and lower limb strength (p < 0.05). Lean mass showed a local effect (ƒ2) greater than that associated with BA. Although maturation is related to strength development, the strength of the relationship is mitigated by the accrual of lean mass. Specifically, the local effect of lean mass on muscle strength is broader than that of maturation, especially for lower limb strength.

Effect of muscle strength and endurance development on blood flow

1961 ◽  
Vol 16 (5) ◽  
pp. 873-877 ◽  
Author(s):  
Ellen R. Vanderhoof ◽  
Charles J. Imig ◽  
H. M. Hines
Keyword(s):  
Blood Flow ◽  
Muscle Strength ◽  
Training Program ◽  
Strength Development ◽  
Flow Response ◽  
Hand Grip ◽  
Vascular Bed ◽  
Flow Through ◽  
Test Exercise ◽  
Strength Improvement

Studies were carried out to investigate the effect of hand grip strength and/or endurance improvement on blood flow through the muscles involved. One group of subjects trained for strength development and another for endurance development throughout a 29-week period. At regular intervals blood flow was measured under resting conditions and also following three different test exercise stresses designed to test the functional capacity of the vascular bed. Subjects who participated in the strength training program made significant gains in strength but not in endurance, while those subjects who trained for endurance improved in both strength and endurance. Resting blood flow was not changed significantly as a result of either training program. Significant changes in the blood flow response to the test exercise stresses were noted; these changes were associated with endurance rather than strength improvement. Submitted on April 3, 1961

scholarly journals Relationship Between Muscle Strength And Body Composition In Young Athletes

2020 ◽  
Vol 52 (7S) ◽  
pp. 64-64
Author(s):  
Diana Marcela Zapata Torres ◽  
Johan E. Ortiz ◽  
Danny W. Sanjuanelo ◽  
Isabel C. Paz ◽  
Maria A. Contreras
Keyword(s):  
Body Composition ◽  
Muscle Strength ◽  
Young Athletes

scholarly journals Can the Neuromuscular Performance of Young Athletes Be Influenced by Hormone Levels and Different Stages of Puberty?

2020 ◽  
Vol 17 (16) ◽  
pp. 5637 ◽  
Author(s):  
Paulo Francisco de Almeida-Neto ◽  
Dihogo Gama de Matos ◽  
Vanessa Carla Monteiro Pinto ◽  
Paulo Moreira Silva Dantas ◽  
Tatianny de Macêdo Cesário ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Young People ◽  
Young Male ◽  
Lower Limbs ◽  
Young Athletes ◽  
Testosterone Levels ◽  
Neuromuscular Performance ◽  
Lower Limb Strength ◽  
Determining Factor ◽  
Hormonal Levels

Background: Endocrine mechanisms can be a determining factor in the neuromuscular performance of young athletes. Objective: The objective of the present study was to relate maturational and hormonal markers to neuromuscular performance, as well as to verify whether young athletes with different testosterone levels show differences in muscle strength. Methods: The sample consisted of 37 young male Brazilian athletes (11.3 ± 0.94 years) who were members of a sports initiation project. Hormonal markers were analyzed biochemically by blood samples, and maturation markers by mathematical models based on anthropometry. Body composition was verified by tetrapolar bioimpedance. The performance of upper and lower limb strength and body speed were analyzed. Results: Hormonal and maturational markers were related to neuromuscular performance (p < 0.05). Young people with higher testosterone levels showed higher muscle strength (p < 0.05). Artificial neural networks showed that testosterone predicted the performance of upper limbs by 49%, and maturation by 60%. Maturation foreshadowed the performance of lower limbs by 30.3%. Conclusion: Biological maturation and hormonal levels can be related to neuromuscular performance, and young people with higher testosterone levels show superior muscle strength in relation to the others.

scholarly journals Dynamics of Power Indicators Growth in Bodybuilders of 18-19 Years Old at the Stage of Specialized Basic Training

2021 ◽  
Vol 6 (6) ◽  
pp. 331-336
Author(s):  
O. S. Slavityak ◽  
◽  
N. V. Kovaleva ◽  
O. Yu. Bychkov ◽  
A. O. Tvelina ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Training Program ◽  
Control Method ◽  
Training Programs ◽  
Training Session ◽  
Growth Dynamics ◽  
Strength Development ◽  
Basic Training ◽  
Research Results ◽  
Muscle Groups

The purpose of the study was the analysis of the growth dynamics of power indicators of athletes-bodybuilders at the stage of specialized basic training. Materials and methods. The study was conducted from March to the end of June (4 months) 2021. It involved 60 athletes aged from 18 to 19 years. Three research groups were formed, 20 athletes in each. These groups of athletes were divided by the usual sample method and by age. Qualification and anthropometric characteristics did not differ significantly. The only difference was in the proposed training programs. Theoretical analysis of scientific and methodological literature was carried out. Test control method for determining the maximum muscle strength of athletes to assess the initial level of muscle strength development in the surveyed contingent and determine the characteristics of its dynamics, was used. The obtained data were used to calculate the indicators of the value of the training load of athletes. In addition, method for quantitative assessment of athletes' physical load was used. The mathematical processing of research results was carried out using the software packages IBM SPSS Statistics 20. Results and discussion. The research results indicate that the values of the training loads indicators of bodybuilders and the nature of their changes in conditions of the same level of athletes' fitness and the structure of the training session depend on the characteristics of the selected training means (training programs). The analysis of the results obtained shows that under the conditions of the second variant of the training program, the indicators of the working mass of the athletes' equipment change more significantly during the entire research period. A similar tendency is observed when monitoring the load volume indicators, despite the fact that the most significant increase in this indicator among bodybuilders when performing formative exercises was obtained under the conditions of using the third variant of the training program, using the “premature fatigue” method. Conclusion. The growth rates of the strength capabilities of the main muscle groups turned out to be the highest among bodybuilders of the second main group due to the long-term use of the “premature fatigue” method. When performing exercises of a formative nature, the growth rate of strength capabilities was 30.9% (p <0.05), while when performing exercises of a basic nature, such an increase was three times less (by 10.5%, p <0.05)

scholarly journals ISOKINETIC MUSCLE STRENGTH AND EXERCISE FOR OSGOOD SCHLATTER DISEASE IN YOUNG ATHLETES

2019 ◽  
Vol 0 (32) ◽  
pp. 0-0
Author(s):  
Canan GÖNEN AYDIN ◽  
Deniz KARGIN ◽  
Mehmet Özbey BÜYÜKKUŞCU ◽  
Burak FARIZ ◽  
Dilek ÖZTAŞ ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Young Athletes ◽  
Isokinetic Muscle Strength

Muscle strength

2013 ◽  
Author(s):  
Mark B. A. De Ste Croix
Keyword(s):  
Body Composition ◽  
Muscle Strength ◽  
Strength Test ◽  
Muscle Size ◽  
Strength Development ◽  
Strength Testing ◽  
Factors Associated ◽  
Rate Of Recovery ◽  
Over Time ◽  
Age And Sex

Despite a relatively limited understanding of the factors associated with strength development, advances in equipment, and increased understanding of growth and maturation issues, have provided new insights into paediatric muscle strength development. Strength testing of children is performed routinely by researchers to monitor the determinants and development of strength throughout childhood, and also by physiotherapists to assess the degree of muscle disability and to diagnose the rate of recovery. It is important for strength test administrators to be equipped with knowledge of the normal age and sex-associated variations in strength and the factors attributable to that variation. Over time, the use of differing techniques to adjust for body size has changed our perspective of the historical concept of the age- and sex-associated differences in muscle strength. Likewise, the development of more sophisticated techniques to determine muscle size and body composition has allowed researchers to explore the factors associated with the development of strength during growth with a greater degree of validity.

Muscle strength

2013 ◽  
Author(s):  
Nathalie J. Farpour-Lambert ◽  
Cameron J.R. Blimkie
Keyword(s):  
Muscle Strength ◽  
Children And Adolescents ◽  
Paediatric Population ◽  
Strength Development ◽  
Strength Assessment ◽  
Assessment Techniques ◽  
Adults And Children

This chapter focuses on laboratory-based strength assessment techniques and considerations for the paediatric population. The theoretical and practical considerations underlying strength assessment in adults and children and adolescents have been previously and thoroughly reviewed. This chapter will supplement, with emphasis on paediatric considerations, but not replicate, the material covered in these references. The topic of strength development and its correlates or determinants during childhood are beyond the scope of this chapter.

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