A relação entre força muscular e capacidade anaeróbia em crianças treinadas do sexo masculino

• Ano de defesa: 2004
• Autor(a) principal: Alexandre dos Santos Cabral
• Tipo de documento: Dissertação
• Tipo de acesso: Acesso aberto
• Idioma: por
• Instituição de defesa: Universidade Federal de Minas Gerais; UFMG
• Palavras-chave em Português: FISIOLOGIA; CRIANÇAS; FORÇA; Aptidão fisica em crianças; Capacidade anaeróbica; Esportes Treinamento técnico; Treinamento com peso; Musculação; Crianças Desenvolvimento
• Link de acesso: http://hdl.handle.net/1843/KMCG-8LANN4

The aim was to study the correlation between muscle strength and performance of male children trained to perform short-term supramaximal exercise, evaluating on a cycle ergometer at maximum intensity with 15 s duration, through theses vertical jump and isokinetic muscle strength. We studied 16 healthy prepubertal boys, who play soccer field, with an average age of 12.1 ± 0.7 years. After carrying out anthropometric measurements, the volunteers underwent three stages of activity: exercise in subjective intensity maximum (Eisma) on a cycle ergometer, lasting 15s; concentric exercise of knee extension at the isokinetic angular velocities of 60 deg / sec and 180 degrees / sec (ISOTEST ISOTEST 60 and 180), vertical jump exercise type Squat Jump(SJ) and Counter Movement Jump (CMJ) on a contact mat. The variables measured were: in Eisma, average power (Pmed [W]), relative mean power (Pmed rel, [W kg -1]), Power (Ppeak [W]), relative peak power (PIPrel [W.kg-1]), time to reach peak power (Tppico [s]); ISOTEST in 60 and 180, Torque (Max Torque [Nm]), relative maximum torque (Torque max rel, [ %]), time to achieve the maximum torque (Ttorque Max [ms]), Job (Job [J]), Work Related (Job rel [%]) and average power Isokinetic (Pmed This [W] ) in SJ and CMJ, the height of jumps [cm]. Pearson correlations were significant, but moderate, between [La] and performance on a cycle ergometer (PIP x [La], r = 0.67 and x rel PIP [La], r = 0.74). Some performance parameters studied in ISOTEST ISOTEST 60 and 180, however, were highly correlated with performance on the cycle ergometeras: x Pmed Max Torque (r = 0.93), Max Torque x PIP (r = 0.94); Job x Pmed1 (r = 0.88), x Job PIP (r = 0.89); Pot med Iso Pmed x (r = 0.87), Pot med Iso x PIP (r = 0.89), and 180 in ISOTEST , x Pmed Max Torque (r = 0.86), x Potpico Max Torque (r = 0.89), Pot med Iso Pmed x (r = 0.84) and Iso Med Pot x PIP (r = 0.86) in ISOTEST 60. All these aforementioned correlations between performance on ISOTEST ISOTEST 60 and 180 with the performance Eisma were significant at p <0.0001. The isokinetic exercise performance was correlated with performance on Eisma, most of the time. Also moderate correlation was found between studied performance in vertical jumps (CMJ and SJ) and ISOTEST ISOTEST 60 and 180.The performance on tests of anaerobic capacity in cycle ergometer, whenapplied to pediatric populations, may be significantly influenced by factorsassociated with muscle strength and neural recruitment patterns and the abilility to generate metabolic energy anaerobically.