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- Relationship between Objective and Subjective Fatigue Monitoring Tests in Professional SoccerPublication . Lourenço, João; Gouveia, Élvio Rúbio; Sarmento, Hugo; Ihle, Andreas; Ribeiro, Tiago; Henriques, Ricardo; Martins, Francisco; França, Cíntia; Ferreira, Ricardo Maia; Fernandes, Luís; Teques, Pedro; Duarte, DanielStudying fatigue is challenging because it is influenced by physiological, psychological, and sociological states. Fatigue can be assessed objectively or subjectively, but the literature has difficulty understanding how an analytical test relates to a response via a questionnaire. Thus, the purpose of this study was to evaluate the relationships between objective fatigue variables (Squat Jump (SJ) and Countermovement Jump (CMJ)) measured on day-2 to the game and subjective fatigue (Rating Perceived Exertion (RPE) measured on day-3 to the game and Hooper Index (HI) measured on day-2). The sample comprised 32 professional football players from the First Portuguese League aged 25.86 ± 3.15 years. The Spearman correlations and regression analyses were used to study the relationships between the variables. The results showed statistically significant (p < 0.05) but small correlations (0.113–0.172) between several objective metrics and the subjective metrics evaluated. In addition, we found two weak models with statistical significance (p < 0.05) between the dependent objective variables (contact time, height, and elasticity index) and the HI (R 2 = 3.7%) and RPE (R 2 = 1.6%). Also, nine statistically significant (p < 0.05) but weak models were observed between the subjective dependent variables (HI and RPE) and contact time (R 2 = 1.8–2.7%), flight time (R 2 = 1.1–1.9%), height (R 2 = 1.2–2.3%), power (R 2 = 1.4%), pace (R 2 = 1.2–2.1%), and elasticity index (R 2 = 1.6%). In conclusion, objective and subjective fatigue-monitoring tests in professional soccer do not measure identical but rather complementary aspects of fatigue, and therefore, both need to be considered to gain a holistic perspective.
- The attitude of portuguese physical education teachers toward physical fitnessPublication . Marques, Adilson; Balsa, Diogo; Domingos, Marta; Cavalheiro, Rafael; Carreira, Tiago; Moreira, Tiago; Ribeiro, Tiago; Gouveia, Élvio R.In this study, we aimed to examine how Portuguese physical education teachers per ceive the development of physical fitness through fitness tests in schools. The participants were 764 Portuguese teachers teaching at middle-school and high-school levels. The Physical Education Teacher Attitudes Toward Fitness Tests Scale (PETAFTS) was used to collect the data. The means and confidence intervals for each attitude subdomain and the overall attitude were computed. A one-way ANOVA was used to examine the group differences in three subdomains of the attitudes of teachers by different variables. The overall attitude of teachers toward fitness tests was slightly positive according to a 7-point Likert scale (5.52, 95% CI: 5.47, 5.58). The results suggested that female teachers found fitness tests more useful, but male teachers significantly enjoyed implementing them. The data collected also showed that younger teachers found the implementation of fitness tests significantly more enjoyable than older teachers. In conclusion, future research should prioritise specific intervention content considering gender and the age of teachers to reinforce the development of physical fitness through fitness tests in schools.
- Changes in Estimated Body Composition and Physical Fitness of Adolescent Boys after One Year of Soccer TrainingPublication . França, Cíntia; Martinho, Diogo V.; Gouveia, Élvio Rúbio; Martins, Francisco; Marques, Adilson; Ribeiro, Tiago; Nascimento, Marcelo de Maio; Lopes, Helder; Rodrigues, Ana; Ihle, AndreasSports participation is one of the most popular forms of physical activity among youngsters. This study aimed to examine the changes in the estimated body composition, strength, and flexibility of adolescent boys after 12 months of soccer training compared with those of age-matched controls with non-sports participation. We assessed 137 boys (62 soccer players and 75 controls) at baseline (TM1) and 12 months later (TM2). The differences in estimated body composition, strength, and flexibility were investigated using a repeated measure analysis of variance. The analysis revealed a significant main effect of soccer training on fat mass (F = 73.503, p ≤ 0.01, η2 = 0.59) and fat-free mass (F = 39.123, p ≤ 0.01, η2 = 0.48). Over time, the soccer group decreased their fat mass and increased their fat-free mass, while the opposite results were observed for the controls. Among physical fitness tests, a substantial effect of soccer training was evidenced for the sit-up performance (F = 16.224, p ≤ 0.01, η2 = 0.32). Regarding the time factor, significant effects were noted for height and handgrip strength. No significant differences were detected for flexibility. Overall, the benefits of soccer training were exhibited by the larger improvements in fat mass, fat-free mass, sit-ups, and handgrip strength performance, underlining the important role of soccer participation during adolescence.