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Júlio A. Costa
University of Porto
PsychologyPhysical therapyNocturnalAthletesHeart rate variability
8Publications
2H-index
13Citations
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Publications 11
Newest
#1Joana P. NetoH-Index: 5
Last. Pedro BarquinhaH-Index: 39
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This work explored hybrid films of silver nanowires (AgNWs) with indium-doped zinc oxide (IZO) for developing high-performance and low-cost electrocorticography (ECoG) electrodes. The hybrid films achieved a sheet resistance of 6 {Omega}/sq while maintaining a transparency of {approx}60% at 550 nm. Electrodes with 500 m diameter were fabricated with these films and reached an impedance of 20 k{Omega} at 1 kHz and a charge storage capacity of 3.2 mC/cm2, a 2x and 320x improvement over IZO electro...
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INTRODUCTION: The rate of perceived exertion (RPE) is widely adopted to quantify internal training load (ITL) in professional football. The aim of this study was to systematically review the use RPE-based methods in professional football. EVIDENCE ACQUISITION: Observational studies conducted during training routines of professional football players over a minimum of one-week were selected based on the preferred reporting items for systematic reviews and meta-analyses statement. EVIDENCE SYNTHESI...
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#1Vincenzo Rago (University of Porto)H-Index: 2
#2João BritoH-Index: 18
Last. António Rebelo (University of Porto)H-Index: 21
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ABSTRACTThe aim of this article was to systematically review the methods adopted to collect and interpret external training load (ETL) using microtechnology incorporating global positioning system ...
1 CitationsSource
AbstractCosta, JA, Brito, J, Nakamura, FY, Figueiredo, P, and Rebelo, A. Using the rating of perceived exertion and heart rate to quantify training intensity in female soccer players: validity and utility. J Strength Cond Res XX(X): 000–000, 2019—The aims of this study were as follows: (a) to analyz
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#1Ovídio CostaH-Index: 11
#2Júlio A. CostaH-Index: 2
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Purpose: To analyze whether exercise training conducted at night disturbs sleep and affects nocturnal cardiac autonomic control in high-level female athletes. Methods: A total of 18 high-level fema...
3 CitationsSource
#1Júlio A. Costa (University of Porto)H-Index: 2
#2Pedro FigueiredoH-Index: 17
Last. João BritoH-Index: 18
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Purpose: This study provides insights into the individual sleep patterns and nocturnal cardiac autonomic activity responses of elite female soccer players during an international tournament. Materials and methods: Twenty elite female soccer players (aged 25.2±3.1 years) wore wrist actigraph units and heart rate (HR) monitors during night-sleep throughout 9 consecutive days (6 day-time training sessions [DT], 2 day-time matches [DM], and 1 evening-time match [EM]) of an international tournament. ...
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#1Júlio A. Costa (University of Porto)H-Index: 2
#2João BritoH-Index: 18
Last. António Rebelo (University of Porto)H-Index: 21
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ABSTRACTThe aim of the current study was to analyze the influence of the timing of training and matches, and match location, on sleep pattern and nocturnal cardiac autonomic activity in female soccer players. A total of 17 female soccer players (age: 21.6 ± 2.3 years; mean ± SD) wore wrist actigraph units and heart rate (HR) monitors during night-sleep throughout 18 night-training days (NTD), 18 resting days (RD), and 6 match-days (MD; 3 away-matches [AM] and 3 home-matches [HM]) of the competit...
2 CitationsSource
AbstractNakamura, FY, Antunes, P, Nunes, C, Costa, JA, Esco, MR, and Travassos, B. Heart rate variability changes from traditional vs. ultra–short-term recordings in relation to preseason training load and performance in futsal players. J Strength Cond Res XX(X): 000–000, 2018—The aims of this study
5 CitationsSource
#1Júlio A. Costa (University of Porto)H-Index: 2
#2João BritoH-Index: 18
Last. António Rebelo (University of Porto)H-Index: 21
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Purpose: To assess the sensitivity of nocturnal heart-rate-variability-monitoring methods to the effects of late-night soccer training sessions in female athletes. Methods: Eleven female soccer pla...
5 CitationsSource
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