Blar i Brage NIH på forfatter "Fernandes, Ricardo J."
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Body roll amplitude and timing in backstroke swimming and their differences from front crawl at the same swimming intensities
Gonjo, Tomohiro; Fernandes, Ricardo J.; Vilas-Boas, João Paulo; Sanders, Ross (Peer reviewed; Journal article, 2021)The current study investigated body roll amplitude and timing of its peak in backstroke and compared them with front crawl swimming. Nineteen anatomical landmarks were digitised using 80 swimming trial videos (ten ... -
Critical evaluation of oxygen-uptake assessment in swimming
Sousa, Ana; Figueiredo, Pedro; Pendergast, David; Kjendlie, Per-Ludvik; Vilas-Boas, João P.; Fernandes, Ricardo J. (Journal article; Peer reviewed, 2014-03)Swimming has become an important area of sport science research since the 1970s, with the bioenergetic factors assuming a fundamental performance-influencing role. The purpose of this study was to conduct a critical ... -
Differences in the rotational effect of buoyancy and trunk kinematics between front crawl and backstroke swimming
Gonjo, Tomohiro; Fernandes, Ricardo J.; Vilas-Boas, J. Paulo; Sanders, Ross (Peer reviewed; Journal article, 2021)The purpose of the present study is to investigate differences between front crawl and backstroke swimming in hydrodynamic (produced by swimmers) and buoyant torque around the transverse axis. Ten swimmers performed 50 m ... -
Front Crawl Is More Efficient and Has Smaller Active Drag Than Backstroke Swimming: Kinematic and Kinetic Comparison Between the Two Techniques at the Same Swimming Speeds
Gonjo, Tomohiro; Narita, Kenzo; McCabe, Carla; Fernandes, Ricardo J.; Vilas-Boas, João Paulo; Takagi, Hideki; Sanders, Ross (Peer reviewed; Journal article, 2020)The purpose of this study was to investigate differences in Froude efficiency (ηF ) and active drag (DA) between front crawl and backstroke at the same speed. ηF was investigated by the three-dimensional (3D) motion analysis ... -
Upper body kinematic differences between maximum front crawl and backstroke swimming
Gonjo, Tomohiro; Fernandes, Ricardo J.; Vilas-Boas, João-Paulo; Sanders, Ross (Peer reviewed; Journal article, 2020)The purpose of this study was to investigate why front crawl is faster than backstroke from a kinematic perspective. Three-dimensional kinematics were obtained from one upper-limb cycle of ten male competitive swimmers ...