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Article ; Online: Consistency of pacing profile according to performance level in three different editions of the Chicago, London, and Tokyo marathons

Fran Oficial-Casado / Jordi Uriel / Irene Jimenez-Perez / Márcio Fagundes Goethel / Pedro Pérez-Soriano / Jose Ignacio Priego-Quesada

Scientific Reports, Vol 12, Iss 1, Pp 1-

2022 Volume 9

Abstract: Abstract Running pacing has become a focus of interest over recent years due to its relationship with performance, however, it is still unknown the consistency of each race in different editions. The aim of this study is to analyze the consistency of ... ...

Abstract	Abstract Running pacing has become a focus of interest over recent years due to its relationship with performance, however, it is still unknown the consistency of each race in different editions. The aim of this study is to analyze the consistency of pacing profile in three consecutive editions of three marathon races. A database of 282,808 runners, compiled from three different races (Chicago, London, and Tokyo Marathon) and three editions (2017, 2018, and 2019) was analyzed. Participants were categorized according to their time performance in the marathon, every 30 min from 2:30 h to sub-6 h. The relative speed of each section for each runner was calculated as a percentage of the average speed for the entire race. The intraclass correlation coefficients (ICC) of relative speed at the different pacing section, taking into account the runner time categories, was excellent over the three marathon editions (ICC > 0.93). The artificial intelligence model showed an accuracy of 86.8% to classify the runners' data in three marathons, suggesting a consistency between editions with identifiable differences between races. In conclusion, although some differences have been observed between editions in certain sections and marathon runner categories, excellent consistency of the pacing profile was observed. The study of pacing profile in a specific marathon can, therefore, be helpful for runners, coaches and marathon organizers for planning the race and improving its organization.
Keywords	Medicine ; R ; Science ; Q
Subject code	629
Language	English
Publishing date	2022-06-01T00:00:00Z
Publisher	Nature Portfolio
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Consistency of pacing profile according to performance level in three different editions of the Chicago, London, and Tokyo marathons.

Oficial-Casado, Fran / Uriel, Jordi / Jimenez-Perez, Irene / Goethel, Márcio Fagundes / Pérez-Soriano, Pedro / Priego-Quesada, Jose Ignacio

Scientific reports

2022 Volume 12, Issue 1, Page(s) 10780

Abstract: Running pacing has become a focus of interest over recent years due to its relationship with performance, however, it is still unknown the consistency of each race in different editions. The aim of this study is to analyze the consistency of pacing ... ...

Abstract	Running pacing has become a focus of interest over recent years due to its relationship with performance, however, it is still unknown the consistency of each race in different editions. The aim of this study is to analyze the consistency of pacing profile in three consecutive editions of three marathon races. A database of 282,808 runners, compiled from three different races (Chicago, London, and Tokyo Marathon) and three editions (2017, 2018, and 2019) was analyzed. Participants were categorized according to their time performance in the marathon, every 30 min from 2:30 h to sub-6 h. The relative speed of each section for each runner was calculated as a percentage of the average speed for the entire race. The intraclass correlation coefficients (ICC) of relative speed at the different pacing section, taking into account the runner time categories, was excellent over the three marathon editions (ICC > 0.93). The artificial intelligence model showed an accuracy of 86.8% to classify the runners' data in three marathons, suggesting a consistency between editions with identifiable differences between races. In conclusion, although some differences have been observed between editions in certain sections and marathon runner categories, excellent consistency of the pacing profile was observed. The study of pacing profile in a specific marathon can, therefore, be helpful for runners, coaches and marathon organizers for planning the race and improving its organization.
MeSH term(s)	Artificial Intelligence ; Athletic Performance ; Chicago ; Humans ; London ; Marathon Running ; Tokyo
Language	English
Publishing date	2022-06-24
Publishing country	England
Document type	Journal Article
ZDB-ID	2615211-3
ISSN	2045-2322 ; 2045-2322
ISSN (online)	2045-2322
ISSN	2045-2322
DOI	10.1038/s41598-022-14868-6
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Are isokinetic leg torques and kick velocity reliable predictors of competitive level in taekwondo athletes?

Pedro Vieira Sarmet Moreira / Coral Falco / Luciano Luporini Menegaldo / Márcio Fagundes Goethel / Leandro Vinhas de Paula / Mauro Gonçalves

PLoS ONE, Vol 16, Iss 6, p e

2021 Volume 0235582

Abstract: The aim of this study is to analyze how isokinetic knee and hip peak torques and roundhouse kick velocities are related to expertise level (elite vs. sub-elite) in taekwondo athletes. Seven elite and seven sub-elite athletes were tested for kick-specific ...

Abstract	The aim of this study is to analyze how isokinetic knee and hip peak torques and roundhouse kick velocities are related to expertise level (elite vs. sub-elite) in taekwondo athletes. Seven elite and seven sub-elite athletes were tested for kick-specific variables (KSV, composed of kinematic variables and power of impact) and for concentric isokinetic peak torque (PT) at 60°/s and 240°/s. First, KSVs and PTs were compared between groups, then PTs were correlated with KSVs. Parametric variables with larger effect sizes (Cohen's d) were entered in a stepwise linear discriminant analysis (LDA), generating an equation to estimate competitive level. Between-group differences were found in hip flexors (p = 0.04, d = 0.92) and extensors (p = 0.04, d = 0.96) with PT at 240°/s. Hip flexion PT at 60°/s and 240°/s correlated negatively with kick time (R = -0.46, p = 0.0499 and R = -0.62, p = 0.01 respectively). Hip flexion torque at 60°/s correlated positively (R = 0.52, p = 0.03) with peak linear velocity of the foot (LVF) and power of impact (R = 0.51, p = 0.03). Peak torque of hip extension at 60°/s and hip abduction at 240°/s also correlated with LVF (R = 0.56, p = 0.02 and R = 0.46, p = 0.0499). Hip extension at 60°/s correlated positively with peak linear velocity of the knee (R = 0.48, p = 0.04). The LDA showed an accuracy of 85.7% (p = 0.003) in predicting expertise level based on hip flexion and extension torques at 240°/s and on knee extension velocity during the kick. The study demonstrates that hip muscle strength is probably the dominant muscular factor for determining kick performance. Knee angular velocity combined with hip torques is the best discriminator for competitive level in taekwondo athletes.
Keywords	Medicine ; R ; Science ; Q
Subject code	796
Language	English
Publishing date	2021-01-01T00:00:00Z
Publisher	Public Library of Science (PLoS)
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: A New Coupling Method for Accurate Measurement of Pedicle Screw Electrical Properties for Surgical Procedures

Pedro Fonseca / Márcio Fagundes Goethel / Ricardo Sebastião / Manoela Vieira Sousa / João Paulo Vilas-Boas / Miguel Velhote Correia / Manuel Gutierres

Applied Sciences, Vol 11, Iss 9861, p

2021 Volume 9861

Abstract: The objective of this study is to present a new coupling method in order to measure the electrical properties of titanium alloy pedicle screws used in spinal surgery and to compare it with other common methods of measurement. An experimental setup was ... ...

Abstract	The objective of this study is to present a new coupling method in order to measure the electrical properties of titanium alloy pedicle screws used in spinal surgery and to compare it with other common methods of measurement. An experimental setup was devised to test the electrical resistance of two specimens of pedicle screws using four methods for coupling the sensing leads, including the use of multimeter probes, alligator clips, wrapped wires and encapsulation with thermo-retractable sleeves. The electrical resistance of the pedicle screw under testing was measured at a current of 10 mA for each coupling method, and the results compared. Our findings show that although widely used in electrical analysis, the alligator clips do not perform as well as the other methods, such as simple wrapping of wires around the screw or the direct application of multimeter probes. The use of thermo-retractable sleeves provides the lowest resistance and inter-quartile range and is closer to the tabled values for the screw’s titanium alloy. Additionally, only this method allows the measurement of identical resistivity values between different screw models manufactured with the same titanium alloy. We then concluded that the use of wrapped wires encapsulated with thermo-retractable sleeves allow more accurate measurements of the pedicle screw’s electrical properties.
Keywords	electrical resistance ; pedicle screw ; electrical stimulation ; intraoperative monitoring ; spine surgery ; pedicle instrumentation ; Technology ; T ; Engineering (General). Civil engineering (General) ; TA1-2040 ; Biology (General) ; QH301-705.5 ; Physics ; QC1-999 ; Chemistry ; QD1-999
Subject code	620
Language	English
Publishing date	2021-10-01T00:00:00Z
Publisher	MDPI AG
Document type	Article ; Online
Database	BASE - Bielefeld Academic Search Engine (life sciences selection)

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Article ; Online: Are isokinetic leg torques and kick velocity reliable predictors of competitive level in taekwondo athletes?

Moreira, Pedro Vieira Sarmet / Falco, Coral / Menegaldo, Luciano Luporini / Goethel, Márcio Fagundes / de Paula, Leandro Vinhas / Gonçalves, Mauro

PloS one

2021 Volume 16, Issue 6, Page(s) e0235582

Abstract	The aim of this study is to analyze how isokinetic knee and hip peak torques and roundhouse kick velocities are related to expertise level (elite vs. sub-elite) in taekwondo athletes. Seven elite and seven sub-elite athletes were tested for kick-specific variables (KSV, composed of kinematic variables and power of impact) and for concentric isokinetic peak torque (PT) at 60°/s and 240°/s. First, KSVs and PTs were compared between groups, then PTs were correlated with KSVs. Parametric variables with larger effect sizes (Cohen's d) were entered in a stepwise linear discriminant analysis (LDA), generating an equation to estimate competitive level. Between-group differences were found in hip flexors (p = 0.04, d = 0.92) and extensors (p = 0.04, d = 0.96) with PT at 240°/s. Hip flexion PT at 60°/s and 240°/s correlated negatively with kick time (R = -0.46, p = 0.0499 and R = -0.62, p = 0.01 respectively). Hip flexion torque at 60°/s correlated positively (R = 0.52, p = 0.03) with peak linear velocity of the foot (LVF) and power of impact (R = 0.51, p = 0.03). Peak torque of hip extension at 60°/s and hip abduction at 240°/s also correlated with LVF (R = 0.56, p = 0.02 and R = 0.46, p = 0.0499). Hip extension at 60°/s correlated positively with peak linear velocity of the knee (R = 0.48, p = 0.04). The LDA showed an accuracy of 85.7% (p = 0.003) in predicting expertise level based on hip flexion and extension torques at 240°/s and on knee extension velocity during the kick. The study demonstrates that hip muscle strength is probably the dominant muscular factor for determining kick performance. Knee angular velocity combined with hip torques is the best discriminator for competitive level in taekwondo athletes.
MeSH term(s)	Athletic Performance/physiology ; Biomechanical Phenomena ; Exercise/physiology ; Female ; Humans ; Leg/physiology ; Male ; Martial Arts/physiology ; Torque ; Young Adult
Language	English
Publishing date	2021-06-09
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ISSN	1932-6203
ISSN (online)	1932-6203
DOI	10.1371/journal.pone.0235582
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Effects of experimentally induced muscle pain on endurance performance: A proof-of-concept study assessing neurophysiological and perceptual responses.

Canestri, Raul / Franco-Alvarenga, Paulo Estevão / Brietzke, Cayque / Vinícius, Ítalo / Smith, Samuel A / Mauger, Alexis R / Goethel, Márcio Fagundes / Pires, Flávio Oliveira

Psychophysiology

2021 Volume 58, Issue 6, Page(s) e13810

Abstract: Pain arising from exercise potentiates fatigue and impairs the performance of endurance exercise. We assessed neurophysiological and perceptual responses to endurance exercise performed under experimentally induced muscle pain by a model that separates ... ...

Abstract	Pain arising from exercise potentiates fatigue and impairs the performance of endurance exercise. We assessed neurophysiological and perceptual responses to endurance exercise performed under experimentally induced muscle pain by a model that separates muscle pain from muscle fatigue. After a series of pilot studies investigating different hypertonic saline volumes, 17 healthy males performed a preliminary VO
MeSH term(s)	Adult ; Bicycling/physiology ; Electroencephalography ; Electromyography ; Humans ; Male ; Motor Cortex ; Muscle Fatigue/physiology ; Myalgia/chemically induced ; Physical Endurance/physiology ; Physical Exertion/physiology ; Prefrontal Cortex ; Quadriceps Muscle ; Saline Solution, Hypertonic
Chemical Substances	Saline Solution, Hypertonic
Language	English
Publishing date	2021-03-13
Publishing country	United States
Document type	Journal Article ; Research Support, Non-U.S. Gov't
ZDB-ID	209486-1
ISSN	1540-5958 ; 0048-5772
ISSN (online)	1540-5958
ISSN	0048-5772
DOI	10.1111/psyp.13810
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Article ; Online: Neuromuscular performance of Bandal Chagui: Comparison of subelite and elite taekwondo athletes.

Moreira, Pedro Vieira Sarmet / Goethel, Márcio Fagundes / Gonçalves, Mauro

Journal of electromyography and kinesiology : official journal of the International Society of Electrophysiological Kinesiology

2016 Volume 30, Page(s) 55–65

Abstract: With the aim of comparing kinematic and neuromuscular parameters of Bandal Chagui kicks between 7 elite and 7 subelite taekwondo athletes, nine Bandal Chaguis were performed at maximal effort in a selective reaction time design, simulating the frequency ... ...

Abstract	With the aim of comparing kinematic and neuromuscular parameters of Bandal Chagui kicks between 7 elite and 7 subelite taekwondo athletes, nine Bandal Chaguis were performed at maximal effort in a selective reaction time design, simulating the frequency of kicks observed in taekwondo competitions. Linear and angular leg velocities were recorded through 3D motion capture system. Ground reaction forces (GRF) were evaluated by a force platform, and surface electromyographic (sEMG) signals were evaluated in the vastus lateralis, biceps femoris, rectus femoris, tensor fasciae lata, adductor magnus, gluteus maximus, gluteus medius, and gastrocnemius lateralis muscles of the kicking leg. sEMG data were processed to obtain the cocontraction indices (CI) of antagonist vs. overall (agonist and antagonist) muscle activity. CI was measured for the hip and knee, in flexion and extension, and for hip abduction. Premotor, reaction (kinetic and kinematic), and kicking times were evaluated. Timing parameters, except kinetic reaction time, were faster in elite athletes. Furthermore, CI and angular velocity during knee extension, foot and knee linear velocity, and horizontal GRF were significantly higher in elite than in subelite athletes. In conclusion, selected biomechanical parameters of Bandal Chagui appear to be useful in controlling the training status of the kick and in orienting the training goal of black belt competitors.
MeSH term(s)	Adult ; Athletes ; Biomechanical Phenomena/physiology ; Electromyography/methods ; Female ; Humans ; Kinetics ; Leg/physiology ; Male ; Martial Arts/physiology ; Muscle, Skeletal/physiology ; Photic Stimulation/methods ; Psychomotor Performance/physiology ; Quadriceps Muscle/physiology ; Random Allocation ; Range of Motion, Articular/physiology ; Reaction Time/physiology ; Young Adult
Language	English
Publishing date	2016-10
Publishing country	England
Document type	Comparative Study ; Journal Article
ZDB-ID	1073161-1
ISSN	1873-5711 ; 1050-6411
ISSN (online)	1873-5711
ISSN	1050-6411
DOI	10.1016/j.jelekin.2016.06.001
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Article ; Online: Reply to Borszcz & de Lucas: Comment on: "Effects of Carbohydrate Mouth Rinse on Cycling Time Trial Performance: A Systematic Review and Meta-Analysis".

Brietzke, Cayque / Franco-Alvarenga, Paulo Estevão / Goethel, Márcio Fagundes / Santos, Tony Meireles / Pires, Flávio Oliveira

Sports medicine (Auckland, N.Z.)

2019 Volume 50, Issue 3, Page(s) 633–637

MeSH term(s)	Bicycling ; Carbohydrates ; Humans ; Mouthwashes
Chemical Substances	Carbohydrates ; Mouthwashes
Language	English
Publishing date	2019-11-06
Publishing country	New Zealand
Document type	Letter ; Comment
ZDB-ID	605911-9
ISSN	1179-2035 ; 0112-1642
ISSN (online)	1179-2035
ISSN	0112-1642
DOI	10.1007/s40279-019-01212-8
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Article ; Online: Influence of the fixation region of a press-fit hip endoprosthesis on the stress-strain state of the "bone-implant" system.

Levadnyi, Ievgen / Awrejcewicz, Jan / Goethel, Márcio Fagundes / Loskutov, Alexander

Computers in biology and medicine

2017 Volume 84, Page(s) 195–204

Abstract: Although significant progress has been made in the development of total hip replacement, behaviour of the femoral component of an endoprosthesis in relation to the type of its fixation in the bone is still not fully understood. In this paper, behaviour ... ...

Abstract	Although significant progress has been made in the development of total hip replacement, behaviour of the femoral component of an endoprosthesis in relation to the type of its fixation in the bone is still not fully understood. In this paper, behaviour of the femoral bone and the stem prosthesis is studied taking into account different types of prosthesis fixation in the medullary canal of the femur under the action of functional loads. For an analysis, a three-dimensional model of a femur has been developed based on the results of a computed tomography. The stress-strain state governing behaviour of the femoral bone and the stem prosthesis has been estimated with the use of the finite element method (FEM). The FEM analysis has shown that for the diaphyseal fixation, the area of contact between the surface of the endoprosthesis and the bone is insufficient and leads to large stresses in the implant accompanied by stress concentration in the distal femur. An increase in the area of contact between the implant and the bone raises the stiffness of the "bone-implant" system, which, in turn, reduces stresses in the implant. The applied metaphyseal-type fixation yielded an improvement of results regarding behaviour of the femoral bone and the stem prosthesis. Namely, the study yielded the distribution of stress in the bone similar to the physiological stress state.
Language	English
Publishing date	2017-05-01
Publishing country	United States
Document type	Journal Article
ZDB-ID	127557-4
ISSN	1879-0534 ; 0010-4825
ISSN (online)	1879-0534
ISSN	0010-4825
DOI	10.1016/j.compbiomed.2017.03.030
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Article ; Online: Ice Massage on the Calf Improves 4-km Running Time Trial Performance in a Normothermic Environment.

Franco-Alvarenga, Paulo Estevão / Cechetti, Matheus Dos Santos / Barcelos, Dores / Canestri, Raul / Brietzke, Cayque / Vinicius, Ítalo / Goethel, Márcio Fagundes / Ferreira, Guilherme Assunção / Pires, Flávio Oliveira

Research quarterly for exercise and sport

2022 Volume 94, Issue 4, Page(s) 1126–1132

Abstract: Purpose: ...

Abstract	Purpose:
MeSH term(s)	Humans ; Male ; Young Adult ; Exercise ; Heart Rate/physiology ; Ice ; Leg ; Massage/methods ; Running/physiology
Chemical Substances	Ice
Language	English
Publishing date	2022-09-19
Publishing country	United States
Document type	Journal Article
ZDB-ID	225654-x
ISSN	2168-3824 ; 0270-1367
ISSN (online)	2168-3824
ISSN	0270-1367
DOI	10.1080/02701367.2022.2120948
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