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  1. Article ; Online: Application of Artificial Intelligence to Automate the Reconstruction of Muscle Cross-Sectional Area Obtained by Ultrasound.

    da Silva, Deivid Gomes / da Silva, Diego Gomes / Angleri, Vitor / Scarpelli, Maíra Camargo / Bergamasco, João Guilherme Almeida / Nóbrega, Sanmy Rocha / Damas, Felipe / Chaves, Talisson Santos / de Arruda Camargo, Heloísa / Ugrinowitsch, Carlos / Libardi, Cleiton Augusto

    Medicine and science in sports and exercise

    2024  

    Abstract: Purpose: Manual reconstruction (MR) of the vastus lateralis (VL) muscle cross sectional area (CSA) from sequential ultrasound (US) images is accessible, reproducible and has concurrent validity with magnetic resonance imaging. However, this technique ... ...

    Abstract Purpose: Manual reconstruction (MR) of the vastus lateralis (VL) muscle cross sectional area (CSA) from sequential ultrasound (US) images is accessible, reproducible and has concurrent validity with magnetic resonance imaging. However, this technique requires numerous controls and procedures during image acquisition and reconstruction, making it laborious and time-consuming. The aim of this study was to determine the concurrent validity of VL CSA assessments between MR and computer vision-based automatic reconstruction (AR) of CSA from sequential images of the VL obtained by US.
    Methods: The images from each sequence were manually rotated to align the fascia between images and thus visualize the VL CSA. For the AR, an artificial neural network model was utilized to segment areas of interest in the image, such as skin, fascia, deep aponeurosis, and femur. This segmentation was crucial to impose necessary constraints for the main assembly phase. At this stage, an image registration application, combined with differential evolution, was employed to achieve appropriate adjustments between the images. Next, the VL CSA obtained from the MR (n = 488) and AR (n = 488) techniques were used to determine their concurrent validity.
    Results: Our findings demonstrated a low coefficient of variation (CV) (1.51%) for AR compared to MR. The Bland-Altman plot showed low bias and close limits of agreement (+1.18 cm2, -1.19 cm2), containing more than 95% of the data points.
    Conclusions: The AR technique is valid compared to MR when measuring VL CSA in a heterogeneous sample.
    Language English
    Publishing date 2024-04-19
    Publishing country United States
    Document type Journal Article
    ZDB-ID 603994-7
    ISSN 1530-0315 ; 0195-9131 ; 0025-7990
    ISSN (online) 1530-0315
    ISSN 0195-9131 ; 0025-7990
    DOI 10.1249/MSS.0000000000003456
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 869: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  2. Article ; Online: Effects of Resistance Training Overload Progression Protocols on Strength and Muscle Mass.

    Chaves, Talisson Santos / Scarpelli, Maíra Camargo / Bergamasco, João Guilherme Almeida / Silva, Deivid Gomes da / Medalha Junior, Ricardo Alessandro / Dias, Nathalia Fernanda / Bittencourt, Diego / Carello Filho, Paulo Cesar / Angleri, Vitor / Nóbrega, Sanmy Rocha / Roberts, Michael D / Ugrinowitsch, Carlos / Libardi, Cleiton Augusto

    International journal of sports medicine

    2024  

    Abstract: The aim of this study was to compare the effects of progressive overload in resistance training on muscle strength and cross-sectional area (CSA) by specifically comparing the impact of increasing load (LOADprog) versus an increase in repetitions ( ... ...

    Abstract The aim of this study was to compare the effects of progressive overload in resistance training on muscle strength and cross-sectional area (CSA) by specifically comparing the impact of increasing load (LOADprog) versus an increase in repetitions (REPSprog). We used a within-subject experimental design in which 39 previously untrained young persons (20 men and 19 women) had their legs randomized to LOADprog and REPSprog. Outcomes were assessed before and after 10 weeks of training. Muscle strength was assessed using the one repetition maximum (1RM) test on the leg extension exercise, and the CSA of the vastus lateralis was assessed by ultrasonography. Both protocols increased 1RM values from pre (LOADprog: 52.90±16.32 kg; REPSprog: 51.67±15.84 kg) to post (LOADprog: 69.05±18.55 kg, REPSprog: 66.82±17.95 kg), with no difference between them (
    Language English
    Publishing date 2024-03-12
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 603122-5
    ISSN 1439-3964 ; 0172-4622 ; 0943-917X
    ISSN (online) 1439-3964
    ISSN 0172-4622 ; 0943-917X
    DOI 10.1055/a-2256-5857
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 1561: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

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  3. Article: Effects of resistance training with controlled versus self-selected repetition duration on muscle mass and strength in untrained men.

    Chaves, Talisson Santos / Pires de Campos Biazon, Thaís Marina / Marcelino Eder Dos Santos, Lucas / Libardi, Cleiton Augusto

    PeerJ

    2020  Volume 8, Page(s) e8697

    Abstract: The aim of this study was to compare the effect of self-selected repetition duration (SELF), with and without volume load (VL) equalized with controlled repetition duration (CON) on muscle strength and hypertrophy in untrained males. We used a within- ... ...

    Abstract The aim of this study was to compare the effect of self-selected repetition duration (SELF), with and without volume load (VL) equalized with controlled repetition duration (CON) on muscle strength and hypertrophy in untrained males. We used a within-subjects design in which 20 volunteers (age: 24.7 ± 2.9 years) had one leg randomly assigned to CON (i.e., 2 s concentric, 2 s eccentric) and the other to SELF or to self-selected repetition duration with equalized volume load (SELF-EV). One repetition maximum (1-RM) and muscle cross-sectional area (CSA) were measured at baseline (Pre) and after (Post) resistance training (RT; 2×/wk for 8 weeks). For the main study variables (1-RM and muscle CSA), a mixed-model analysis was performed, assuming repetition duration (SELF, SELF-EV and CON), and time (Pre and Post) as fixed factors and the subjects as random factor for each dependent variable (1-RM and CSA). All RT protocols showed significant increases in values of 1-RM from Pre (CON: 73.7 ± 17.6 kg; SELF: 75.9 ± 17.7 kg; and SELF-EV: 72.6 ± 16.9 kg) to Post (CON: 83.4 ± 19.9 kg, effect size (ES): 0.47; SELF: 84 ± 19.1 kg, ES: 0.43; and SELF-EV: 83.2 ± 19.9 kg, ES: 0.57,
    Language English
    Publishing date 2020-03-06
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2703241-3
    ISSN 2167-8359
    ISSN 2167-8359
    DOI 10.7717/peerj.8697
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: [No title information]

    Chaves, Talisson Santos / Scarpelli, Maíra Camargo / Bergamasco, João Guilherme Almeida / Silva, Deivid Gomes da / Medalha Junior, Ricardo Alessandro / Dias, Nathalia Fernanda / Bittencourt, Diego / Carello Filho, Paulo Cesar / Angleri, Vitor / Nóbrega, Sanmy Rocha / Roberts, Michael D. / Ugrinowitsch, Carlos / Libardi, Cleiton Augusto

    International Journal of Sports Medicine

    2024  

    Abstract: The aim of this study was to compare the effects of progressive overload in resistance training on muscle strength and cross-sectional area (CSA) by specifically comparing the impact of increasing load (LOADprog) ... ...

    Abstract The aim of this study was to compare the effects of progressive overload in resistance training on muscle strength and cross-sectional area (CSA) by specifically comparing the impact of increasing load (LOADprog) versus an increase in repetitions (REPSprog). We used a within-subject experimental design in which 39 previously untrained young persons (20 men and 19 women) had their legs randomized to LOADprog and REPSprog. Outcomes were assessed before and after 10 weeks of training. Muscle strength was assessed using the one repetition maximum (1RM) test on the leg extension exercise, and the CSA of the vastus lateralis was assessed by ultrasonography. Both protocols increased 1RM values from pre (LOADprog: 52.90±16.32 kg; REPSprog: 51.67±15.84 kg) to post (LOADprog: 69.05±18.55 kg, REPSprog: 66.82±17.95 kg), with no difference between them ( P +>+0.05). Similarly, both protocols also increased in CSA values from pre (LOADprog: 21.34±4.71 cm²; REPSprog: 21.08±4.62 cm²) to post (LOADprog: 23.53±5.41 cm², REPSprog: 23.39±5.19 cm²), with no difference between them ( P +>+0.05). In conclusion, our findings indicate that the progression of overload through load or repetitions can be used to promote gains in strength and muscle hypertrophy in young men and women in the early stages of training.
    Keywords muscle cross-sectional area ; 1-RM ; concentric muscle failure ; strength training
    Language English
    Publishing date 2024-01-29
    Publisher Georg Thieme Verlag
    Publishing place Stuttgart ; New York
    Document type Article
    ZDB-ID 603122-5
    ISSN 1439-3964 ; 0172-4622 ; 0943-917X
    ISSN (online) 1439-3964
    ISSN 0172-4622 ; 0943-917X
    DOI 10.1055/a-2256-5857
    Database Thieme publisher's database

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    Kategorien

    In stock of ZB MED Cologne/Königswinter

    Zs.A 1561: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (1.OG)
    ab Jg. 2022: Lesesaal (EG)

    Order via subito

    This service is chargeable due to the Delivery terms set by subito. Orders including an article and supplementary material will be classified as separate orders. In these cases, fees will be demanded for each order.

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