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  1. Article ; Online: Effect of linear and undulating training periodization models on the repeated sprint ability and strength of soccer players

    Pamela R. G. Gonelli / Tiago V. Braz / Rozângela Verlengia / Ídico L. Pellegrinotti / Marcelo C. César / Márcio A. G. Sindorf / Alex H. Crisp / Marcelo S. Aoki / Charles R. Lopes

    Motriz: Revista de Educacao Fisica, Vol 24, Iss

    2018  Volume 4

    Abstract: Abstract Purpose: The aim of the study was to investigate the effect of linear and undulating strength-power training scheme on the repeated sprint ability (RSA) and lower body strength of soccer players. Method: Twenty soccer players (under-20 category) ...

    Abstract Abstract Purpose: The aim of the study was to investigate the effect of linear and undulating strength-power training scheme on the repeated sprint ability (RSA) and lower body strength of soccer players. Method: Twenty soccer players (under-20 category) were split into 2 groups: the linear load (LL, n=10) and the undulating load (UL, n=10). In the commencement and at the end of the 6-week pre-season period, the RSA test (6 x 35m) and the 1RM parallel squat test (1RMsquat) were conducted. The LL and UL performed the same type and number of sessions. The training stimulus in the strength training was different between LL (Weeks 1 and 2 = Muscular Endurance; Weeks 3 and 4 = Strength; Weeks 5 and 6 = Power) and UL (daily load variation in the same week). Results: A improvement in RSAmean and 1RMsquat was detected in LL and in UL. No significant difference was noted between LL vs UL for all variables. Conclusion: Both groups improved maximal muscle strength in parallel back squat and RSA. UL induced a greater gain in RSA.
    Keywords soccer ; strength ; speed ; athletic training ; Sports ; GV557-1198.995 ; Sports medicine ; RC1200-1245
    Subject code 796
    Language English
    Publishing date 2018-12-01T00:00:00Z
    Publisher Universidade Estadual Paulista (UNESP)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  2. Article ; Online: Interval training based on ventilatory anaerobic threshold increases cardiac vagal modulation and decreases high-sensitivity c-reative protein

    Nayara Y. Tamburus / Roberta F. L. Paula / Vandeni C. Kunz / Marcelo C. César / Marlene A. Moreno / Ester da Silva

    Revista Brasileira de Fisioterapia, Vol 19, Iss 6, Pp 441-

    randomized clinical trial in coronary artery disease

    2015  Volume 450

    Abstract: Background: Autonomic dysfunction and inflammatory activity are involved in the development and progression of coronary artery disease (CAD), and exercise training has been shown to confer a cardiovascular benefit. Objective: To evaluate the effects that ...

    Abstract Background: Autonomic dysfunction and inflammatory activity are involved in the development and progression of coronary artery disease (CAD), and exercise training has been shown to confer a cardiovascular benefit. Objective: To evaluate the effects that interval training (IT) based on ventilatory anaerobic threshold (VAT) has on heart rate variability (HRV) and high-sensitivity C-reactive protein (hs-CRP) levels, as well as the relationship between both levels, in patients with CAD and/or cardiovascular risk factors (RF). Method: Forty-two men (aged 57.88±6.20 years) were divided into two training groups, CAD-T (n= 12) and RF-T (n= 10), and two control groups, CAD-C (n= 10) and RF-C (n=10). Heart rate and RR intervals in the supine position, cardiopulmonary exercise tests, and hs-CRP levels were measured before and after IT. HRV was analyzed by spectral and symbolic analysis. The CAD-T and RF-T underwent a 16-week IT program of three weekly sessions at training intensities based on the VAT. Results: In the RF-T, cardiac sympathetic modulation index and hs-CRP decreased (p<0.02), while cardiac parasympathetic modulation index increased (p<0.02). In the CAD-T, cardiac parasympathetic modulation index increased, while hs-CRP, systolic, and diastolic blood pressures decreased (p<0.02). Both control groups showed increase in hs-CRP parameters (p<0.02). There was a strong and significant association between parasympathetic and sympathetic modulations with hs-CRP. Conclusion: The IT program based on the VAT promoted a decrease in hs-CRP associated with improvement in cardiac autonomic modulation.
    Keywords physical therapy ; coronary disease ; exercise ; C-reactive protein ; heart rate variability ; Therapeutics. Pharmacology ; RM1-950 ; Medicine ; R
    Subject code 796 ; 610
    Language Portuguese
    Publishing date 2015-12-01T00:00:00Z
    Publisher Associação Brasileira de Pesquisa e Pós-Graduação em Fisioterapia
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article ; Online: Supplementation with small-extracellular vesicles from ovarian follicular fluid during in vitro production modulates bovine embryo development.

    Juliano C da Silveira / Gabriella M Andrade / Maite Del Collado / Rafael V Sampaio / Juliano R Sangalli / Luciano A Silva / Fábio V L Pinaffi / Izabelle B Jardim / Marcelo C Cesar / Marcelo F G Nogueira / Aline S M Cesar / Luiz L Coutinho / Rinaldo W Pereira / Felipe Perecin / Flávio V Meirelles

    PLoS ONE, Vol 12, Iss 6, p e

    2017  Volume 0179451

    Abstract: Pregnancy success results from the interaction of multiple factors, among them are folliculogenesis and early embryonic development. Failure during these different processes can lead to difficulties in conception. Alternatives to overcome these problems ... ...

    Abstract Pregnancy success results from the interaction of multiple factors, among them are folliculogenesis and early embryonic development. Failure during these different processes can lead to difficulties in conception. Alternatives to overcome these problems are based on assisted reproductive techniques. Extracellular vesicles are cell-secreted vesicles present in different body fluids and contain bioactive materials, such as messenger RNA, microRNAs (miRNAs), and proteins. Thus, our hypothesis is that extracellular vesicles from follicular fluid from 3-6 mm ovarian follicles can modulate bovine embryo development in vitro. To test our hypothesis follicular fluid from bovine ovaries was aspirated and small-extracellular vesicles (<200 nm) were isolated for further analysis. Additionally, small-extracellular vesicles (EVs) were utilized for functional experiments investigating their role in modulating messenger RNA, microRNA as well as global DNA methylation and hydroxymethylation levels of bovine blastocysts. EVs from 3-6 mm follicles were used for RNA-seq and miRNA analysis. Functional annotation analysis of the EVs transcripts revealed messages related to chromatin remodeling and transcriptional regulation. EVs treatment during oocyte maturation and embryo development causes changes in blastocyst rates, as well as changes in the transcription levels of genes related to embryonic metabolism and development. Supplementation with EVs from 3-6 mm follicles during oocyte maturation and early embryo development (until the 4-cell stage) increased the levels of bta-miR-631 (enriched in EVs from 3-6 mm follicles) in embryos. Interestingly, the addition of EVs from 3-6 mm follicles induced changes in global DNA methylation and hydroxymethylation levels compared to embryos produced by the standard in vitro production system. Our results indicate that the supplementation of culture media with EVs isolated from the follicular fluid of 3-6 mm follicles during oocyte maturation and early embryo development can partially modify ...
    Keywords Medicine ; R ; Science ; Q
    Subject code 570
    Language English
    Publishing date 2017-01-01T00:00:00Z
    Publisher Public Library of Science (PLoS)
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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