Results 11 to 20 of about 1,554,477 (266)

Muscle Strength and Hamstrings to Quadriceps Ratio in Young Soccer Players: A Cross-Sectional Study

open access: yesJournal of Functional Morphology and Kinesiology, 2023
The aim of the present study was to examine and compare the concentric isokinetic peak torque of the knee flexors and extensors muscles, as well as their ratio, in young soccer players.
Athanasios Mandroukas   +2 more
doaj   +1 more source

Application of the latest CLSI EP guidelines in light-initiated chemiluminescent assay for testosterone [PDF]

open access: yesJournal of Medical Biochemistry
Background: A commercial light-initiated chemiluminescent assay (LiCA) for testosterone (T) measurement was developed. This study comprehensively evaluated the analytical performance of LiCA-T following the Clinical and Laboratory Standards Institute ...
Liang Ai   +5 more
doaj   +1 more source

Reliability of the Urine Lactate Concentration After Alternating-Intensity Interval Exercise

open access: yesProceedings, 2019
Aim: Our previous studies have shown that the post-exercise urine lactate concentration is a reliable exercise biomarker under controlled post-exercise hydration conditions.
Ioannis Kosmidis   +5 more
doaj   +1 more source

Investigation of Early Corrosion Behavior of Canister Candidate Materials in Oxic Groundwater by the EQCM Method

open access: yesScience and Technology of Nuclear Installations, 2022
This study investigated the corrosion mass changes of canister candidate materials (Cu, Ni, Ti, SS304) in an oxic groundwater solution using the electrochemical quartz crystal microbalance method in order to estimate corrosion thickness.
Gha-Young Kim   +4 more
doaj   +1 more source

Do Performance Parameters Compare Between an Anaerobic Set and the 100-M Event in Swimming?

open access: yesProceedings, 2019
AIM: Anaerobic interval sets are commonly used in the training program of swimmers competing in short-distance events. However, data regarding the way that these sets compare to the competitive events are lacking.
Elissavet Terzi   +5 more
doaj   +1 more source

The Effect of Maximal Interval Training Sets on Metabolic Markers in Adolescent Competitive Swimmers

open access: yesProceedings, 2019
AIM: Although high-intensity interval sets are routinely used in the training regimen of competitive swimmers, information about the acute metabolic effects of such sets is lacking.
Athanasios Kabasakalis   +3 more
doaj   +1 more source

The Effect of Interval Training Sets of Maximal Intensity on Metabolic Markers in Master Swimmers

open access: yesProceedings, 2019
Aim: Regular swimming training is gaining popularity among adults for health and competition. The acute effects of high-intensity interval swimming are largely unknown in such populations. Thus, the aim of the present study was to evaluate the effects of
Athanasios Kabasakalis   +3 more
doaj   +1 more source

Supercapacitors Performance Evaluation [PDF]

open access: yesAdvanced Energy Materials, 2014
The performance of a supercapacitor can be characterized by a series of key parameters, including the cell capacitance, operating voltage, equivalent series resistance, power density, energy density, and time constant. To accurately measure these parameters, a variety of methods have been proposed and are used in academia and industry.
Zhang, Sanliang, Pan, Ning
openaire   +4 more sources

Two or Four Weeks Acute: Chronic Workload Ratio Is More Useful to Prevent Injuries in Soccer?

open access: yesApplied Sciences, 2022
This study was conducted to determine if the acute: chronic workload ratio (ACWR) is related to the incidence of non-contact injuries. The purpose is to compare the external load of injured and non-injured soccer players with the same characteristics ...
Andreas Fousekis   +8 more
doaj   +1 more source

Surface Electromyographic Activity of the Rectus Abdominis and External Oblique during Isometric and Dynamic Exercises

open access: yesJournal of Functional Morphology and Kinesiology, 2022
Exercises for the abdominal muscles are widely used in athletic activities for strength training and prevention of low back disorders. The timing and volume of muscle activation for various movements have not yet been clarified.
Athanasios Mandroukas   +4 more
doaj   +1 more source

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