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  1. Article ; Online: Training zones in competitive swimming: a biophysical approach.

    Fernandes, Ricardo J / Carvalho, Diogo D / Figueiredo, Pedro

    Frontiers in sports and active living

    2024  Volume 6, Page(s) 1363730

    Abstract: Since swimming performance depends on both physical conditioning and technical proficiency, training zones should be built based on physiology and biomechanics inputs to dispose of structured and effective training programs. This paper presents a zone- ... ...

    Abstract Since swimming performance depends on both physical conditioning and technical proficiency, training zones should be built based on physiology and biomechanics inputs to dispose of structured and effective training programs. This paper presents a zone-based swimming training, supported by the oxygen uptake (
    Language English
    Publishing date 2024-03-18
    Publishing country Switzerland
    Document type Journal Article
    ISSN 2624-9367
    ISSN (online) 2624-9367
    DOI 10.3389/fspor.2024.1363730
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: How Anthropometrics of Young and Adolescent Swimmers Influence Stroking Parameters and Performance? A Systematic Review.

    Alves, Miriam / Carvalho, Diogo D / Fernandes, Ricardo J / Vilas-Boas, João Paulo

    International journal of environmental research and public health

    2022  Volume 19, Issue 5

    Abstract: The purpose of this systematic review was to investigate the relationship between anthropometric characteristics, biomechanical variables and performance in the conventional swimming techniques in young and adolescent swimmers. A database search from 1 ... ...

    Abstract The purpose of this systematic review was to investigate the relationship between anthropometric characteristics, biomechanical variables and performance in the conventional swimming techniques in young and adolescent swimmers. A database search from 1 January 2001 to 30 June 2021 was done according to the PRISMA statement, with 43 studies being selected for analysis. Those manuscripts were divided in butterfly, backstroke, breaststroke and front crawl techniques as main categories. The results showed the importance of the anthropometric variables for the performance of the young swimmer, although there was a lack of variables common to the studies that analysed the butterfly, backstroke and breaststroke techniques. For the front crawl technique there is a consensus among studies on the advantage of having higher height and arm span values, variables that concurrently with high body mass and lean body mass values, contribute positively to better stroke length and stoke index values.
    MeSH term(s) Adolescent ; Anthropometry ; Biomechanical Phenomena ; Body Composition ; Humans ; Swimming
    Language English
    Publishing date 2022-02-22
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't ; Review ; Systematic Review
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph19052543
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article ; Online: Exploring the Applicability of Physiological Monitoring to Manage Physical Fatigue in Firefighters.

    Bustos, Denisse / Cardoso, Ricardo / Carvalho, Diogo D / Guedes, Joana / Vaz, Mário / Torres Costa, José / Santos Baptista, João / Fernandes, Ricardo J

    Sensors (Basel, Switzerland)

    2023  Volume 23, Issue 11

    Abstract: Physical fatigue reduces productivity and quality of work while increasing the risk of injuries and accidents among safety-sensitive professionals. To prevent its adverse effects, researchers are developing automated assessment methods that, despite ... ...

    Abstract Physical fatigue reduces productivity and quality of work while increasing the risk of injuries and accidents among safety-sensitive professionals. To prevent its adverse effects, researchers are developing automated assessment methods that, despite being highly accurate, require a comprehensive understanding of underlying mechanisms and variables' contributions to determine their real-life applicability. This work aims to evaluate the performance variations of a previously developed four-level physical fatigue model when alternating its inputs to have a comprehensive view of the impact of each physiological variable on the model's functioning. Data from heart rate, breathing rate, core temperature and personal characteristics from 24 firefighters during an incremental running protocol were used to develop the physical fatigue model based on an XGBoosted tree classifier. The model was trained 11 times with different input combinations resulting from alternating four groups of features. Performance measures from each case showed that heart rate is the most relevant signal for estimating physical fatigue. Breathing rate and core temperature enhanced the model when combined with heart rate but showed poor performance individually. Overall, this study highlights the advantage of using more than one physiological measure for improving physical fatigue modelling. The findings can contribute to variables and sensor selection in occupational applications and as the foundation for further field research.
    MeSH term(s) Humans ; Firefighters ; Fatigue ; Monitoring, Physiologic ; Efficiency ; Heart Rate
    Language English
    Publishing date 2023-05-27
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2052857-7
    ISSN 1424-8220 ; 1424-8220
    ISSN (online) 1424-8220
    ISSN 1424-8220
    DOI 10.3390/s23115127
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  4. Article ; Online: Swimming sprint performance depends on upper/lower limbs strength and swimmers level.

    Carvalho, Diogo D / Monteiro, Ana Sofia / Fonseca, Pedro / Silva, António J / Vilas-Boas, J Paulo / Pyne, David B / Fernandes, Ricardo J

    Journal of sports sciences

    2023  Volume 41, Issue 8, Page(s) 747–757

    Abstract: Swimming performance is likely influenced by strength, but differences between butterfly, backstroke, breaststroke and front crawl, as well as between novice and expert swimmers, are unclear. We have examined the associations between sprint performances, ...

    Abstract Swimming performance is likely influenced by strength, but differences between butterfly, backstroke, breaststroke and front crawl, as well as between novice and expert swimmers, are unclear. We have examined the associations between sprint performances, upper and lower limb strength, and anthropometric characteristics in 14 (six males and eight females) non-elite and 16 (nine males and seven females) elite-level swimmers. After an anthropometric characterisation, participants performed four 25 m maximal swims (one per technique) with 10 min intervals, right and left shoulder flexion/extension isokinetic testing at 90 and 300º/s angular velocities and three countermovement jumps. Pearson correlation analysis showed that sprint times were moderate-largely negatively correlated with upper and lower limb strength and power (r ± 95%CI = 0.39 ± 0.26-0.77 ± 0.13,
    MeSH term(s) Male ; Female ; Humans ; Swimming ; Upper Extremity ; Shoulder ; Lower Extremity ; Anthropometry
    Language English
    Publishing date 2023-07-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 995528-8
    ISSN 1466-447X ; 0264-0414
    ISSN (online) 1466-447X
    ISSN 0264-0414
    DOI 10.1080/02640414.2023.2239610
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 2388: Show issues Location:
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    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  5. Article ; Online: Repeatability of ventilatory, metabolic and biomechanical responses to an intermittent incremental swimming protocol.

    Monteiro, Ana Sofia / Carvalho, Diogo D / Elói, Ana / Silva, Francisco / Vilas-Boas, João Paulo / Buzzachera, Cosme F / Fernandes, Ricardo J

    Physiological measurement

    2022  Volume 43, Issue 7

    Abstract: ... ...

    Abstract Objective
    MeSH term(s) Biomechanical Phenomena ; Carbon Dioxide ; Lactic Acid ; Oxygen/analysis ; Oxygen Consumption/physiology ; Reproducibility of Results ; Swimming/physiology
    Chemical Substances Carbon Dioxide (142M471B3J) ; Lactic Acid (33X04XA5AT) ; Oxygen (S88TT14065)
    Language English
    Publishing date 2022-07-18
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1149545-5
    ISSN 1361-6579 ; 0967-3334
    ISSN (online) 1361-6579
    ISSN 0967-3334
    DOI 10.1088/1361-6579/ac7c51
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1559: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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    ab Jg. 2022: Lesesaal (EG)

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  6. Article ; Online: Shoulder Torque Production and Muscular Balance after Long and Short Tennis Points.

    Brito, André V / Carvalho, Diogo D / Fonseca, Pedro / Monteiro, Ana S / Fernandes, Aléxia / Fernández-Fernández, Jaime / Fernandes, Ricardo J

    International journal of environmental research and public health

    2022  Volume 19, Issue 23

    Abstract: Tennis is an asymmetric sport characterized by a systematic repetition of specific movements that may cause disturbances in muscular strength, power, and torque. Thus, we assessed (i) the torque, power, ratio production, and bilateral asymmetries in the ... ...

    Abstract Tennis is an asymmetric sport characterized by a systematic repetition of specific movements that may cause disturbances in muscular strength, power, and torque. Thus, we assessed (i) the torque, power, ratio production, and bilateral asymmetries in the shoulder's external and internal rotations at 90 and 180°/s angular velocities, and (ii) the point duration influence of the above-mentioned variables. Twenty competitive tennis players performed external and internal shoulder rotations; an isokinetic evaluation was conducted of the dominant and non-dominant upper limbs before and after five and ten forehands. A higher torque production in the shoulder's internal rotations at 90 and 180°/s was observed for the dominant vs. non-dominant sides (e.g., 63.1 ± 15.6 vs. 45.9 ± 9.8% and 62.5 ± 17.3 vs. 44.0 ± 12.6% of peak torque/body mass,
    Language English
    Publishing date 2022-11-28
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph192315857
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  7. Article ; Online: Adding protein to a carbohydrate pre-exercise beverage does not influence running performance and metabolism.

    Lopes, Ana M / Rios, Manoel / Beleza, Jorge / Carvalho, Diogo D / Monteiro, Sofia / Montanha, Tiago / Martins, Sandra / Tiago Guimarães, João / Fernandes, Ricardo J / Magalhães, José / Teixeira, Vitor H / Ascensão, António

    The Journal of sports medicine and physical fitness

    2022  

    Abstract: Background: To analyse whether pre-exercise CHO + PRO vs. CHO intake distinctly influences running performance and metabolic biomarkers along a various of exercise intensities.: Methods: In a randomised, double blind, counterbalanced, crossover and ... ...

    Abstract Background: To analyse whether pre-exercise CHO + PRO vs. CHO intake distinctly influences running performance and metabolic biomarkers along a various of exercise intensities.
    Methods: In a randomised, double blind, counterbalanced, crossover and placebo control design, 10 middle distance runners were tested in 3 occasions. After 10 h of fasting, participants ingested isovolumic beverages (0.75 + 0.25g·BW-1 of CHO + PRO, 1.0g·BW-1 of CHO and placebo control) 30 min before a treadmill running incremental protocol of 4 min steps until exhaustion. Venous blood was collected at fasting, 30 min after beverage ingestion and after the 3rd and 7th running steps. Oxygen uptake-related variables, including respiratory exchange ratio, heart rate, plasma glucose, insulin, glucagon, free fatty acids, blood lactate concentrations, gastrointestinal discomfort and rate of perceived exertion were measured.
    Results: The addition of PRO to CHO had no influence on the measured variables, which did not differ between conditions along all incremental protocol intensities. The intake of CHO + PRO (compared to CHO) tended to decrease glycaemia (106.5 ± 21.3 vs. 113.6 ± 26.5) and to increase insulinaemia (14.4 ± 15.1 vs. 12.7 ± 10.8) at intensities close to maximum oxygen uptake.
    Conclusions: The addition of PRO to a pre-exercise CHO beverage had no impact on running performance and related metabolic variables at a wide spectrum of exercise intensities.
    Language English
    Publishing date 2022-04-12
    Publishing country Italy
    Document type Journal Article
    ZDB-ID 410823-1
    ISSN 1827-1928 ; 0022-4707
    ISSN (online) 1827-1928
    ISSN 0022-4707
    DOI 10.23736/S0022-4707.22.13714-X
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    In stock of ZB MED Cologne/Königswinter

    Zs.B 326: Show issues Location:
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  8. Article ; Online: Post-swim oxygen consumption: assessment methodologies and kinetics analysis.

    Monteiro, Ana Sofia / Carvalho, Diogo D / Azevedo, Rui / Vilas-Boas, João Paulo / Zacca, Rodrigo / Fernandes, Ricardo J

    Physiological measurement

    2020  Volume 41, Issue 10, Page(s) 105005

    Abstract: Objective: This study aimed at comparing different recovery-based methods to assess the highest exercise oxygen uptake value ([Formula: see text]O: Approach: Eighteen competitive swimmers performed a 5 × 200 m front crawl intermittent protocol (0.05 ... ...

    Abstract Objective: This study aimed at comparing different recovery-based methods to assess the highest exercise oxygen uptake value ([Formula: see text]O
    Approach: Eighteen competitive swimmers performed a 5 × 200 m front crawl intermittent protocol (0.05 m · s
    Main results: [Formula: see text]O
    Significance: The backward extrapolation of the first 20 s of recovery is the best method to assess the [Formula: see text]O
    MeSH term(s) Exercise Test ; Humans ; Kinetics ; Oxygen ; Oxygen Consumption ; Physical Exertion ; Respiratory Function Tests ; Swimming/physiology
    Chemical Substances Oxygen (S88TT14065)
    Language English
    Publishing date 2020-11-06
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1149545-5
    ISSN 1361-6579 ; 0967-3334
    ISSN (online) 1361-6579
    ISSN 0967-3334
    DOI 10.1088/1361-6579/abb143
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1559: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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    ab Jg. 2022: Lesesaal (EG)

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  9. Article ; Online: In-Water and On-Land Swimmers' Symmetry and Force Production.

    Carvalho, Diogo D / Soares, Susana / Zacca, Rodrigo / Marinho, Daniel A / Silva, António J / Pyne, David B / Vilas-Boas, J Paulo / Fernandes, Ricardo J

    International journal of environmental research and public health

    2019  Volume 16, Issue 24

    Abstract: Although performance and biomechanical evaluations are becoming more swimming-specific, dryland testing permits monitoring of a larger number of performance-related variables. However, as the degree of comparability of measurements conducted in-water and ...

    Abstract Although performance and biomechanical evaluations are becoming more swimming-specific, dryland testing permits monitoring of a larger number of performance-related variables. However, as the degree of comparability of measurements conducted in-water and on land conditions is unclear, we aimed to assess the differences between force production in these two different conditions. Twelve elite swimmers performed a 30 s tethered swimming test and four isokinetic tests (shoulder and knee extension at 90 and 300°/s) to assess peak force, peak and average torque, and power symmetry index. We observed contralateral symmetry in all the tests performed, e.g., for 30 s tethered swimming and peak torque shoulder extension at 90°/s: 178 ± 50 vs. 183 ± 56 N (
    MeSH term(s) Adolescent ; Adult ; Biomechanical Phenomena ; Child ; Female ; Humans ; Knee/physiology ; Male ; Shoulder/physiology ; Swimming/physiology ; Torque ; Water
    Chemical Substances Water (059QF0KO0R)
    Language English
    Publishing date 2019-12-10
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1660-4601
    ISSN (online) 1660-4601
    DOI 10.3390/ijerph16245018
    Database MEDical Literature Analysis and Retrieval System OnLINE

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