129 documents found, page 1 of 13
Trend forecasting in swimming world records and in the age of world record holders
Costa, Mário; Quinta-Nova, L.C.; Ferreira, Sandra; Costa, Aldo M.; Santos, Catarina CostaThis study aimed to forecast trends in swimming world records (WRs) and in the age of record holders. A total of 566 individual freestyle WRs (290 for males and 276 for females) were retrieved from open access websites. The frequency of observations in WRs in each decade and event was computed for males and females. The swimmers’ chronological age was converted into decimal age at the time of breaking the world...
The impact of revolutionary aircraft designs on global aviation emissions
Abrantes, Ivo; Ferreira, Ana F.; Magalhães, Leandro; Costa, Mário; Silva, AndréThe discussion about the environmental impact caused by aviation has gained greater prominence due to the increased demand for this sector and, consequently, the increase in the number of flights. Environmental concerns have stimulated the development of novel approaches to reduce pollutants and CO2 emissions. This study aims to assess the impact of disruptive concepts on commercial aircraft by reducing CO2 emi...
Validation of the Aquanex system to assess in-water forces during aquatic exercise
Santos, Catarina; Costa, Mário; Almeida, Daniel; Garrido, Nuno; Barbosa, Tiago; Rosa, SérgioThe aim of this study was to perform a validation of the Aquanex system to assess in-water forces during aquatic exercise. One sensor (Type A) that composes the differential pressure system (Aquanex v.4.1, STR, USA) was placed inside a wind tunnel (Axial Propellor Fan, England), this last being considered as the gold standard technique for measurement. A frequency inverter was used to control a range of twenty-...
Resumos do XLVI Congresso Técnico e Científico da Associação Portuguesa de Técn...
Costa, Aldo Matos da; Costa, Mário; Garrido, Nuno DomingosO congresso anual da APTN é uma evidência clara do seu papel multidimensional, quer em prol do desenvolvimento desportivo da natação portuguesa, quer na promoção da relevância social dos técnicos de natação. Quem é profissional do desporto sabe, e reconhece, a importância da prática baseada em evidência científica – um compromisso que nos permite uma tomada de decisão coerente, segura e responsável. Aliás, como...
Proceedings of the XLV Technical and Scientific Congress of the Portuguese Asso...
Costa, Aldo Matos da; Costa, Mário; Garrido, Nuno DomingosSince the beginning, APTN has believed in the value of corporate education, which means that it has always sought to maintain a constant stimulus to critical thinking, engagement, and sharing of best practices. This is a very strong institutional purpose, and therefore APTN is proud to continuously organize an annual technical-scientific congress in cities where sports, in general, have reached high levels of d...
The acute effects of a swimming session on the shoulder rotators strength and b...
Batalha, Nuno; Parraca, Jose; Marinho, Daniel; Conceição, Ana Teresa; Louro, Hugo; Silva, António; Costa, MárioThe purpose of this study was to analyze the acute effects of a standardized water training session on the shoulder rotators strength and balance in age group swimmers, in order to understand whether a muscle-strengthening workout immediately after the water training is appropriate. A repeated measures design was implemented with two measurements performed before and after a standardized swim session. 127 parti...
Análise cinética e cinemática do chuto frontal a diferentes cadências musicais:...
Santos, Catarina; Costa, MárioEstudos prévios na hidroginástica objetivaram, de uma forma dissociada, analisar variáveis cinéticas e cinemáticas em diferentes exercícios base (p.e., Costa, 2011; Santos, Rama, Marinho, Barbosa, & Costa, 2019). Contudo, o comportamento cinemático associado à força aplicada permanece inexplorado. O objetivo deste estudo foi analisar e associar as variáveis cinéticas e cinemáticas no chuto frontal realizado a d...
The acute effects of a swimming session on the shoulder rotators strength and b...
Batalha, Nuno; Parraca, José; Marinho, Daniel; Conceição, Ana; Louro, Hugo; Silva, António; Costa, MárioThe purpose of this study was to analyze the acute effects of a standardized water training session on the shoulder rotators strength and balance in age group swimmers, in order to understand whether a muscle-strengthening workout immediately after the water training is appropriate. A repeated measures design was implemented with two measurements performed before and after a standardized swim session. 127 parti...
The Effectiveness of a Dry-Land Shoulder Rotators Strength Training Program in ...
Batalha, Nuno; Paixão, Carlos; Silva, António; Costa, Mário; Mullen, John; Barbosa, TiagoCompetitive swimmers usually undergo large mileage of daily training, in which propulsive force is produced mainly by the upper limbs. Some studies claim that dry-land shoulder rotators injury prevention programs before the in-water swim practice are paramount. However, the effect of shoulder strengthening prior to water training is unclear. This study aimed to analyse the acute effects of training programs con...
The coaches' perceptions and experience implementing a long-term athletic devel...
Costa, Mário; Santos, Catarina Costa; Quinta-Nova, L.C.; Costa, Aldo M.; Silva, António; Barbosa, TiagoThe aim of this study was to analyze the association between coaches’ experience and their perceptions on the implementation of a long-term athletic development (LTAD) model created in 2016 by the Portuguese Swimming Federation. Eighty-six swimming coaches were assembled in groups according to their experience level: “novice” (n = 24), “intermediate” (n = 26), and “experienced” (n = 36), and they answered a que...