This study aimed to describe habitual sleep and nocturnal cardiac autonomic activity (CAA), and their relationship with training/match load in male youth soccer players during an international tournament. Eighteen elite male youth soccer players (aged 14.8 ± 0.3 years; mean ± SD) participated in the study. Sleep indices were measured using wrist actigraphy, and heart rate (HR) monitors were used to measure CAA during night-sleep throughout 5 consecutive days. Training and match loads were characterized using the session-rating of perceived exertion (s-RPE). During the five nights 8 to 17 players slept less than <8 h and only one to two players had a sleep efficiency <75%. Players’ sleep duration coefficient of variation (CV) ranged between 4 and 17%. Nocturnal heart rate variability (HRV) indices for the time-domain analyses ranged from 3.8 (95% confidence interval, 3.6; 4.0) to 4.1 ln[ms] (3.9; 4.3) and for the frequency-domain analyses ranged from 5.9 (5.6; 6.5) to 6.6 (6.3; 7.4). Time-domain HRV CV ranged from 3 to 10% and frequency-domain HRV ranged from 2 to 12%. A moderate within-subjects correlation was found between s-RPE and sleep duration [r = −0.41 (−0.62; −0.14); p = 0.003]. The present findings suggest that youth soccer players slept less than the recommended during the international tournament, and sleep duration was negatively associated with training/match load.
O potencial paisagístico do litoral cearense proporciona uma série de belezas naturais que incentivam o turismo em vários municípios, dentre eles, em Beberibe, encontra-se o seu Monumento Natural das Falésias de Morro Branco, que atraem pessoas do mundo todo para essa praia. Visto essa importância, o objetivo deste trabalho torna-se analisar as formas de uso e ocupação, além de apontar os conflitos entre a dinâmica natural e humana existentes nesta praia tão privilegiada por seu potencial paisagístico. No ponto de vista metodológico, através de estudos de hemeroteca, análises da dinâmica de ondas e de voos de drone, este escrito evidencia os danos que existem entre as intervenções antrópicas e a dinâmica natural da praia de Morro Branco. Os resultados constataram conflitos diversos, que corroboram com as hipóteses do trabalho, que apontam para uma gestão costeira ineficaz, dentre eles: as barracas de praia de fato estão em um espaço irregular, exposta a riscos constantes pelos eventos oceanográficos; a Unidade de Conservação das falésias, criada em 2004, sofre invasões por casas de veraneio; e o potencial paisagístico da praia, que sustenta o turismo, a principal economia local, pode estar comprometido pelas intervenções urbanas. Resguardado na legislação ambiental, o trabalho conclui que há a necessidade de repensar as intervenções antrópicas da Praia de Morro Branco, para garantir não só a dinâmica ambiental, como também o turismo costeiro que é primordial para população local. Disorderly anthropic intervention and coastal dynamics: a self-destructive conflict on the beach of Morro Branco A B S T R A C TThe landscape potential of the Ceará coast provides a series of native beauties that encourage tourism in several counties, among them, in Beberibe, it’s found the Natural Monument of the Cliffs of Morro Branco that attract people from all over the world. Seen this importance, the objective of this work is to analyze the forms of use and occupation, in addition to pointing out the conflicts between the natural and human dynamics that exists on this beach so privileged by its landscape potential. From a methodological point of view, through studies from a newspapers library, analyzes of the dynamics of waves and drone flights, this paper highlights the damage that exists between anthropic interventions and the natural dynamics of Praia de Morro Branco. The results showed several conflicts, which confirms the hypotheses of this work, that points out to an ineffective coastal management, among them: the beach huts are in fact in an irregular space, exposed to constant risks due to oceanographic events; the Conservation Unit of the Cliffs, created in 2004, suffers from summer houses invasion; and the landscape potential of the beach, which sustains tourism, the main local economy, may be compromised by urban interventions. Protected by the environmental legislation, the work concludes that there is a need to rethink the anthropic interventions on Praia de Morro Branco, to guarantee not only the environmental dynamics, but also coastal tourism, which is essential for the local populace. Keywords: Morro Branco, Cliffs, Coastal Landmarks and Environmental Dynamics.
O Rio Jaguaribe é o maior rio do Ceará. Trata-se de um rio efêmero, possivelmente o maior “oued” do globo. Nos documentos oficiais, consta que suas nascentes se situam no Município de Tauá, na Serra da Joaninha, mas essa localização ainda é motivo de controvérsias. Uma expedição científica foi realizada ao alto curso do rio, fazendo uso de computadores, geomática, modelos digitais de elevação e drenagem, instrumentos de exploração e realização de cálculos com precisão topográfica e geodésica através de técnicas de sensores remotos, aerofotogrametria com drones e sistemas de posicionamentos globais por satélites do tipo GPS e GLOSNAS, e precisaram que a nascente principal (isto é, a de maior distância até a foz) se situa na verdade na divisa entre os muncípios de Tauá, Pedra Branca e Independência, na Serra das Pipocas, a partir da nascente do Riacho Carrapateiras. Essa descoberta geográfica deve a partir de agora ser homologada pelo Instituto Brasileiro de Geografia e Estatística – IBGE, Instituto de Pesquisas do Ceará – IPECE e publicações escolares.
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