Results 71 to 80 of about 317,057 (313)

Predicting high‐performance decathlon career best

open access: yesExperimental Physiology
The decathlon is a 10‐event discipline in the sport of track and field, typically offered only for men at the elite level of competition (heptathlon is the complementary event for women). It is composed of 10 distinct events contested over 2 days.
Perry Battles (he/him/his)   +2 more
doaj   +1 more source

Assessing Differences and Implications of Two Methods for Calculating Outcomes in the Lower Quarter Y-Balance Test [PDF]

open access: yesRehabilitacja Medyczna
Background : The Lower Quarter Y-balance test (YBT-LQ) is a widely used tool in the field of sports medicine and rehabilitation. Interestingly, there are inconsistencies in the literature regarding the methodology for calculating YBT-LQ outcomes ...
Natalia Sokulska   +2 more
doaj   +1 more source

Current Tracking Adaptive Control of Brushless DC Motors

open access: yesInternational Journal of Adaptive Control and Signal Processing, EarlyView.
In this paper, the current tracking for Brushless Direct Current motors is approached considering uncertainty in the parameters of the motor's model. An adaptive control scheme to compensate electrical parameters uncertainty is proposed without requiring any knowledge of the mechanical parameters.
Fernanda Ramos‐García   +3 more
wiley   +1 more source

Enhancing Corrosion Resistance and Mechanical Strength of 3D‐Printed Iron Polylactic Acid for Marine Applications via Laser Surface Texturing

open access: yesAdvanced Engineering Materials, EarlyView.
Laser surface texturing significantly improves the corrosion resistance and mechanical strength of 3D‐printed iron polylactic acid (Ir‐PLA) for marine applications. Optimal laser parameters reduce corrosion by 80% and enhance tensile strength by 25% and ductility by 15%.
Mohammad Rezayat   +6 more
wiley   +1 more source

The impact of track and field sports professionalization on age limits of athletes sports skills qualifications saving. [PDF]

open access: yesPedagogìka, Psihologìâ ta Mediko-bìologìčnì Problemi Fìzičnogo Vihovannâ ì Sportu, 2011
The age-related features of elite athletes were defined track-and-field events. It was established, that professionalization of track-and-field sport assists the expansion of the age limits elite athletes performances on a world of sporting arena.
Kozlova O.K.
doaj  

Performance in youth track and field is associated with birth quartile. A register-based study among athletes in Norway from 10 years to senior level

open access: gold, 2022
Hilde Gundersen   +6 more
openalex   +2 more sources

Additive Manufacturing of Gradient Stiffness Honeycombs Using Thermoplastic Polyurethane Composite Material Variations

open access: yesAdvanced Engineering Materials, EarlyView.
By combining porous, solid, and carbon fiber‐reinforced thermoplastic polyurethane within a single 3D printed honeycomb structure, this current work achieved precise control over spatial stiffness while ensuring strong interlayer adhesion. The findings demonstrate enhanced energy absorption and densification strain, outperforming traditional uniform ...
Savvas Koltsakidis   +2 more
wiley   +1 more source

Profile of 50 m Sprinting: The Influence of Carbon-Plated Spikes on Maximum-Velocity Performance

open access: yesSensors
The main goal of this study was to determine whether the type of spike can influence the final sprint result by comparing step by step the kinematics of four 50-m sprints.
Krzysztof Mackala   +4 more
doaj   +1 more source

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