Purpose. the aim of the study was to determine the level of physical fitness, internal load, and recovery regarding 5 consecutive official professional soccer games and to correlate the physical fitness with the internal load and recovery variables. Methods. the total of 11 male professional soccer athletes performed an incremental treadmill test, which allowed to assess their physical fitness, and then participated in 5 official soccer matches held within 8.3 ± 3.7 days. After each match, the perceived recovery, perceived muscle soreness, creatine kinase concentration, and session rating of perceived exertion were registered. the effect of the 5 consecutive games was tested with the repeated measures ANOVA and the correlations were examined with the spearman coefficient. the significance level was set at p < 0.05. Results. the internal load and recovery variables were similar throughout the games (p > 0.05). significant correlations were found between internal load and physical fitness ( = 0.66) and between strain and recovery ( = -0.61). Conclusions. the results suggest that soccer athletes with better aerobic fitness weary more during the game and present higher strain in the season; however, they recover faster between games.
Recentemente, têm-se procurado aprofundar os estudos sobre o fenômeno psicofisiológico que pode levar atletas ao abandono de sua atividade esportiva conhecido na literatura como burnout no contexto esportivo. O objetivo do presente estudo de revisão integrativa foi analisar as variáveis psicológicas e de desempenho associadas à síndrome de burnout em atletas adultos. Buscaram-se artigos nas bases de dados eletrônicas Pubmed,
Risk behaviors and signs of burnout are associated with substantial health losses and university dropouts. Physical activity can be an effective approach to reduce these factors. The objective of this study was to analyze aspects related to health behaviors, physical activity, and signs of burnout in university students and their association with physical activity. The probabilistic cluster sample consisted of 3,578 regularly enrolled undergraduate students from UFPR in Curitiba, based on a population sample of 24,032 university students. The students completed the MBI-SS and NCHA II instruments. Descriptive statistics were used to identify demographic indicators and characteristics of the university environment. For the proportion of subjects with respective confidence intervals (CI = 95%), contingency tables involving the chi-square test (χ2) were used. The prevalence of signs of burnout was estimated in punctual proportions accompanied by the respective confidence intervals (CI = 95%). To analyze the associations between the independent variables and signs of burnout, the Hierarchical Logistic Regression was used through an analysis adjusted by the other independent variables involved in the models (CI = 95%). Results showed that the prevalence of individuals who showed signs of burnout was 40.4%. The hierarchical multiple regression model pointed to: female sex (OR = 1.30; 1.11–1.51); age between 20–24 years (OR = 1.51; 1.25–1.83); and 25–29 years (OR = 1.69; 1.27–2.24); being single (OR = 2.67; 1.01–7.10); presenting regular/poor health perception (OR = 1.59; 1.13–2.22), belonging to Human Sciences courses (OR = 1.37; 1.14–1.64); attending 2nd or 3rd year (OR = 1.34; 1.12–1.61); poor academic performance (OR = 5.35; 4.11–6.96); mean (OR = 2.08; 1.78–2.43). We conclude that academics showed a high prevalence of health risk behaviors and correlate and diagnose emotional problems and signs of burnout. Signs of burnout were significantly associated with the practice of physical activity in its three dimensions; however, in the adjusted analysis for demographic indicators, the characteristics of the university environment, and health behaviors, physical activity was not significant for the model.
O objetivo desta revisão sistemática foi relatar os métodos utilizados na literatura para a identificação do limiar anaeróbio em nadadores e, verificar a existência de possíveis lacunas que justifiquem a realização de novos estudos. Buscaram-se artigos nas bases de dados eletrônicas Pubmed, Web Of Science, Scielo e Science Direct. O Protocolo de 200m é o mais utilizado, indicando ser o mais adequado para grupos de provas distintas. Porém, constatamos que a literatura carece de delineamentos adequados para cada estilo de nado, assim como para a especialidade de cada atleta. Concluímos que é possível utilizar diferentes métodos para identificação do limiar anaeróbio, proporcionando o uso deste para a prescrição e controle do treinamento de nadadores.
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