Participants were 15 professional sailors, ranging in age from 23-49 years (M age = 35.9 years; SD = 7.4), who competed in the 2005/06 VOR. After receiving approval from the Temple University Institutional Review Board, the researcher recruited participants who were subsequently required to provide informed consent to participate in the study. Using a semi-structured interview format, face-to-face interviews were completed with three sailors in Miami, FL, and with nine sailors in Valencia, Spain (three interviews with individual participants, one interview with two participants, and a focus group with four participants). Three interviews were completed via telephone. All interviews were transcribed verbatim. Each transcript was then analysed through an inductive open coding process. Data analysis revealed nine major themes (Background, Skiffs on Steroids, Boat Breakdowns, Managing Self, Pressure, Tragedy, Extreme, Team, and Reflecting) with associated subthemes, and three dimensions (Resonance, Edgework, and Performance Capacities) with associated subdimensions. A framework for understanding the experiences of the sailors was conceived in the form of a model depicting the dimensions of resonance (a passion for adventure and the VOR in particular), edgework (a desire and ability to perform in high-risk, life threatening situations), and performance capacities (team, individual, and boat). The model suggests an interplay between the dimensions of edgework and resonance, against which is set the performance dimension. This study is the first to take a glimpse inside the experiences of professional ocean racing sailors who compete in fully crewed around-the-world races. Findings confirm the widely held belief that the VOR is an extreme and unique event in the world of sport. / Kinesiology

Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal.

Se ha abordado el análisis e investigación en los protocolos notariales de datos sobre movimientos portuarios acaecidos en Santander durante el siglo XVIII. Se analizaron las múltiples interdependencias originadas como nacionalidades, intervinientes, tipología de embarcaciones, cargas transportadas y rutas adscritas

Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal

When difficulties appear concerning the environment and the social relationships in teams, leading others become very interesting as well as challenging. I am sharing in this research an understanding of the concept of hardship in order to point out a main leadership issue, which is to lead others in extreme situations. It is a new and innovative approach of leadership within the business area based on the literature and completed by sailors’ experiences of hardship.Offshore sailors have the use to handle hardship situations alone as well as in crews, and they cannot avoid it when they are far away from the coasts. Thus when a problem occurs they must fix it themselves. During offshore races and expeditions, sailors have to deal with teams issues and cannot quit for going back home. Thereby, a boat, which is going to sail for few months without stop, is a real laboratory of leadership and social relationships.The starting point of this approach concerns the art of leading oneself, which represents a prerogative for a great leadership in extreme conditions. Indeed when a leader loses his or her self-control in extremes situations, he or she will probably not be able to lead others. Thus, in order to illustrate the literature approach to this concept, this thesis has been completed with an auto-ethnographical approach. I as a sailor have experimented hardship alone on my boat during some offshore sailing trips. I present an analysis of these experiences to explain the issues of leading oneself in such conditions. Thanks to the participation of some sailors experts in hardship, I illustrate the possibility to lead others in hardship context with the inspiration of their experiences. It is possible to lead others in very extremes conditions, and offshore sailors that I called hardship experts could represent a real inspiration to leaders, for a real and great leadership.

Made available in DSpace on 2016-12-06T17:07:11Z (GMT). No. of bitstreams: 1 PPGCMH Gustavo Ricardo Schutz.pdf: 1852152 bytes, checksum: a639167457cde844f824fd8ad28b069f (MD5) Previous issue date: 2006-08-25 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / This study aimed to develop instrumentation for images acquisition that makes possible movements quantification and kinematics analysis of the sailor s hiking positions in Laser boats. Two waterproof boxes were developed for cameras protection, confectioned with fiberglass and acrylic lens viewfinder. The camera and lens viewfinder components had been tested in a bidimensional kinematics analysis, and between the analyzed cameras, the digital standard cameras presented superior quality. The developed viewfinders haven t seemd to generate distortion for the reference measures reconstruction. The root mean square error and the maximum error for the combined cameras and with the lens viewfinders had been quantified. With the equipment a procedure for the boat equipment positioning was developed, with one camera located to the front and second, located in the mast. The camera located in the mast intervened with the sailor movement, and this way its use was discarded. With the images gotten from the camera located in the front it was observed movements quantification possibility made for the sailor. To make possible a posterior analysis kinematics of the sailor hiking positions was considered a procedure for calibration from the image picture. The procedure if showed efficient for a bidimensional hiking positions analysis. However, beyond the hip and knee joints extension, the sailor also executes the rotation of the trunk, what makes a three-dimensional hiking analysis more adjusted. / Este estudo teve como objetivo desenvolver uma instrumentação para aquisição de imagens que possibilite uma posterior quantificação dos movimentos e análise cinemática das posturas de escora do velejador em barcos da classe Laser. Foram desenvolvidas duas caixas estanque para proteção das câmeras, confeccionadas com fibra de vidro e com o visor da lente de acrílico. Foram testados os componentes câmera e visor da lente em uma análise cinemática bidimensional, tendo entre as câmeras analisadas, as câmeras de padrão digital apresentaram uma qualidade superior. Os visores desenvolvidos aparentaram não gerar distorção para a reconstrução das medidas de referência. Foram quantificados o erro quadrático médio e o erro máximo para as câmeras e combinadas com os visores da lente. Com o equipamento foi desenvolvido um método para o posicionamento do equipamento do barco, sendo uma câmera posicionada à frente e a segunda, posicionada no mastro. A câmera posicionada no mastro interferia na movimentação normal do velejador, e desta forma foi descartada sua utilização. Com as imagens obtidas pela câmera posicionada à frente observou-se a possibilidade da quantificação dos movimentos realizados pelo velejador. Para possibilitar uma posterior análise cinemática das posturas de escora do velejador foi proposto um procedimento para calibração a partir do quadro de imagem. O procedimento se mostrou eficiente para uma análise bidimensional das posturas de escora. Entretanto, além das extensões das articulações de quadril e joelho, o velejador executa também a rotação do tronco, o que torna uma análise tridimensional da escora mais adequada.

Wind propulsion is a traditional way to propel ships over the oceans. In the recent development towards more sustainable shipping, sailing is considered in the industry again with high momentum. For a modern merchant ship, the aerodynamic forces generated on the particular rigging are unusual. Tailored research and experiments are required to understand their influence on the ship’s sailing behaviour. This work concerns the aerodynamic interactions on a model-sized car carrier with four 360° rotatable, symmetric, rigid wings aligned along the centreline on deck. Differential pressures on the wings are measured to capture the generated normal forces. In a comprehensive post-processing, data recorded in systematic experiments at two apparent wind angles were evaluated. A comparison for the different wing positions on board the model shows stronger interactions in upwind sailing conditions than when reaching. The two-dimensional data prove a significant influence of the hull in the normal force profiles over the wing span. The results of this work indicate that the aerodynamic conditions while sailing have to be attentively considered for efficient wing trimming. / Under en lång tid användes främst vindkraft för framdrivningen av fartyg. Det är först på senare år att seglingskonceptet har fått ett nytt uppsving inom marinindustrin med tanke på dess hållbarhet. För fraktfartyg är de aerodynamiska krafterna vid segling ovanliga. Därför behövs särskild forskning och experimentella metoder för att förstå hur de påverkar fartygens seglingsbeteende. I detta arbete undersöks aerodynamiska interaktioner på en modell av ett biltransportfartyg med fyra symmetriska, 360° roterbara vingsegel på däck längs midskeppslinjen. I systematiska experiment på två kurser mot vinden mättes differenstryck över vingprofilen för att undersöka de genererade normalkrafterna. En jämförelse av data från de fyra olika vingpositionerna och båda kurserna mot vinden visar att de aerodynamiska interaktionerna är starkare på kryss än vid halvvind. De upmätta profilerna av tvådimensionella normalkraftkoefficienter över vingspannet visar på betydande aerodynamiska interaktioner med fartygets skrov. Resultaten av detta arbete visar hur viktigt det är med en grundlig undersökning av strömningsförhållandena för en effektiv segeltrim.

Title: Physiological response of competitors Fireball dinghy class in the model sailing race. Objectives: The main intention of the thesis is to detect the physical demands (difficulties) of sailing boat race categorized as Fireball double crew. The variables of physiological response to the load of competitors recorded are being measured using simulated race under laboratory conditions. At that point, this opportunity enabled us to carry out further comparisons and examine the physical demands of individual post at various directions of wind. Methods: The entire investigation of detecting physiological functions of competitors will be carried out noninvasively throughout the simulation of sailing using metabolic analyser tool and sport tester. From the feedback, we will obtained figures and originate the physiological response of human body to the load. Due to the investigation is being implemented on the double crew boat Fireball; both competitors (crew/helmsman) performing different tasks will be simulated and examined individually. Simulated race will last 24 minutes and competitors will have to face different wind courses, precisely cruising upwind, crosswind and tailwind. Results: From the measured results, we can state that most of the time during simulated race, the performance of racers...

Ce travail s’inscrit dans le projet VOILENav qui vise à améliorer la compréhension des phénomènes d’Interaction Fluide-Structure appliqués aux voiles. Des comparaisons numériques expérimentales sont réalisées sur des mesures « in situ » au près à l’aide d’un code fluide parfait. Un critère, fondé sur l’équilibre du couple aérodynamique avec le couple de redressement, est proposé, permettant de vérifier l’hypothèse d’un écoulement attaché. Les précédentes études sur un voilier instrumenté ont montré les limites d’une approche « in situ » de par l’instationnarité naturelle liée aux évolutions du vent et de l’état de mer. Les autres limites résident dans la mesure de ces dernières – et tout particulièrement la mesure du vent réel – ainsi que dans le spectre des conditions rencontrées au réel. Des essais en soufflerie sont ainsi réalisés dans le cadre de ces travaux pour répondre, par une approche systématique et contrôlée, aux interrogations soulevées par les mesures « in situ ». Deux campagnes expérimentales successives, soutenues par le programme d’échange Sailing Fluids ont été menées dans la soufflerie du Yacht Research Unit de l’Université d’Auckland se focalisant sur les essais de voiles au près puis au portant. Les essais au près sont réalisés sur trois modèles réduits de grand-voiles d’IMOCA60 dans des conditions de réglages statiques et dynamiques. Le meilleur réglage statique est obtenu grâce à l’utilisation d’un algorithme d’optimisation original puis l’influence de l’amplitude et de la fréquence du « pumping » sont étudiés. Les performances aérodynamiques du système soumis à un réglage dynamique sont supérieures à celles du réglage optimum statique et un maximum est observé autour d’une fréquence réduite de 0.25 à 0.3. Au portant, les effets de l’instationnarité naturelle du spinnaker connue sous le terme « curling » (repliement du bord d’attaque) sont étudiés. Quatre modèles de spinnakers de J80 de forme identique sont testés pour différents matériaux et différentes coupes. Les mesures en soufflerie montrent que, pour des angles de vent apparent supérieurs à 100°, l’apparition du « curling » conduit à une augmentation de la force propulsive pouvant atteindre 10%. Les effets de la vitesse et de l’angle de vent apparent sont également étudiés et permettent d’extraire une fréquence réduite de curling indépendante de la vitesse de l’écoulement de 0.4 pour un vent apparent de 120°. L’étendue de la gamme de mesures explorées et le soin particulier apporté aux données expérimentales font de ces travaux une base de données remarquable pour des comparaisons avec des simulations de l’Interaction Fluide-Structure. / This work is part of the VOILENav project which aims to improve the understanding of Fluid-Structure Interaction applied to sails. Full-scale numerical experimental comparisons are achieved in upwind conditions with an inviscid flow code. A criterion using the equilibrium between the righting and heeling moment is suggested to check the attached flow hypothesis. Previous fullscale studies on instrumented boat are limited by the natural unsteadiness of wind and sea conditions and the measurement of these conditions. True wind computation and the wide range of encountered sailing conditions are still challenging. Complementary wind tunnel tests are carried out in this PhD project, using controlled conditions, to address some issues observed at full-scale. Thanks to the Sailing Fluids collaboration, two experimental campaigns in the Twisted Flow Wind Tunnel of the Yacht Research Unit of the University of Auckland have investigated upwind and downwind conditions. Upwind tests investigate static and dynamic trimming on three model IMOCA60 mainsails. The optimum static trim is determined thanks to an innovative optimization algorithm then the pumping amplitude and frequency are investigated. Aerodynamic performances under dynamic trimming are better than the optimum static trim with a maximum located for a reduced frequency about 0.25 to 0.3. For the downwind test, the natural unsteadiness known as curling (repeated foldingunfolding of leading edge) is studied. Four model J80 spinnakers with identical design shape are tested with different materials and cuts. Wind tunnel measurements show that for apparent wind angles higher than 100°, the curling apparition increases the drive force by up to 10%. Wind speed and wind angle effects are investigated and show a reduced curling frequency of 0.4 independent from the flow velocity for an apparent wind angle of 120°. The variety of the experimental conditions tested makes this work a precious database for Fluid Structure Interaction numerical-experimental comparison in the future.

La problématique de la performance des marins en navigation extrême, n’a été que très peu étudiée avec des méthodes scientifiques rigoureuses de façon systématique et sous un angle de vue global en conditions écologiques. Nos travaux se sont attachés à évaluer le comportement humain en conditions écologiques avec une approche environnementaliste et transactionnelle. L’objectif principal de cette thèse a été de comprendre quel est l’impact des facteurs environnementaux tels que la force du vent et la quantité de sommeil ainsi que d’une stimulation cognitive à l’aide d’un vidéo self-modeling sur la perception de l’anxiété, de la fatigue et la tolérance à l’effort à vitesse maximale aérobie. Les résultats de la première étude, en condition écologique, où l’influence du vent et de la privation du sommeil ont été modélisées grâce à l’outil des fonctions transferts, a permis de comprendre que le marin opère une régulation liée temporellement à son engagement et aux efforts ou privations comme par exemple celle du sommeil. Cette régulation est liée à la perception de l’anxiété et l’intensité de l’effort perçu et est influencée par les facteurs environnementaux comme le vent ou la privation de sommeil. Cette étude a aussi montré qu’il existe une relation entre la durée de l’engagement, mesurée par le nombre de jours passés en mer, et la quantité de sommeil nécessaire, permettant ainsi de résister aux conditions environnementales. Une seconde étude en milieu extrême, cette fois en équipage de deux personnes, en utilisant le même protocole a confirmé que la quantité de sommeil était le meilleur activateur pouvant agir sur l’anxiété et permettre au mieux sa régulation. Une troisième étude nous a permis de montrer que la tolérance à un effort, mesuré par la perception de l’effort, n’était pas couplée exclusivement à une réponse physiologique mais aussi à des facteurs cognitifs. Le résultat principal de cette étude pilote a été de montrer que l’utilisation du feedback vidéo comme stimulation cognitive diminue significativement la perception de l’effort à partir 50% de la durée de l’épreuve. Contrairement à ce qui aurait pu être attendu, aucun effet n’a été observé sur la fréquence cardiaque. L’ensemble de ces résultats tend à montrer l’importance de l’interaction environnement – individu en milieu extrême, ainsi que lors d’une épreuve menée jusqu’aux limites de l’épuisement. Ces résultats ouvrent des perspectives intéressantes dans les domaines de l’entraînement sportif et de la rééducation. / The problem of performance in extreme sailing navigation has been very little studied using rigorous scientific methods consistently and at an angle of view in global environmental conditions. Our work sought to evaluate human behavior in ecological conditions with environmentalist and transactional approach. The main objective of this thesis was to understand what the impact of environmental factors such as wind strength and the amount of sleep as well as cognitive stimulation using a video self-modeling on perception of anxiety, fatigue and exercise tolerance in maximal aerobic speed. The results of the first study, ecological condition, where the influence of wind and sleep deprivation were modeled using the tool transfers functions, has to understand that the sailor makes a time- dependent regulation of its commitment and efforts and hardships such as that of sleep. This regulation is related to the perception of anxiety and intensity of perceived fatigue and is influenced by environmental factors such as wind or sleep deprivation. This study also showed that there is a relationship between the duration of the engagement, as measured by the number of days at sea, and the amount of sleep needed, allowing withstand environmental conditions. A second study in extreme conditions, this time with a crew of two people using the same protocol confirmed that the amount of sleep was the best activator can act on anxiety and allow its better regulation. A third study, we showed that the tolerance to stress, as measured by perceived exertion, was not exclusively coupled to a physiological response but also cognitive factors. The main result of this pilot study was to show that the use of video feedback as cognitive stimulation significantly reduces the perception of effort from 50 % of the duration of the event. Contrary to what might be expected, no effect was observed on heart rate. All of these results suggest the importance of the interaction environment - individual in extreme environments, and in a test conducted to the limits of exhaustion. These results open interesting perspectives in the fields of sports training and rehabilitation.