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Maurelli, Olivier. "Effets d'une saison de compétition sur les caractéristiques musculaires, biologiques et psychologiques de joueurs de handball de niveau international". Electronic Thesis or Diss., Amiens, 2018. http://www.theses.fr/2018AMIE0062.
Pełny tekst źródłaThe objective of this thesis was to analyze the influence of a sports season on the physical, physiological and psychological characteristics of handball players of the Montpellier Agglomération Handball club, one of the best European clubs. At first (Study 1), we were interested in the evolution of the isokinetic muscular profile of the lower limbs during the pre-competitive preparation phase (Pc2P). Although this period is short (8 weeks), our results show that most of the values of strength, power (at 30±.s¡1, 60±.s¡1 and 240±.s¡1, in concentric and eccentric), and different ratios (agonist vs antagonist, dominant vs non-dominant as wellas mixed ratio) increase significantly during Pc2P. In a second phase (Study 2), we were interested in the evolution of the isokinetic muscular profile of the lower limbs during the competition period. Our results show that a competitive season does not significantly affect the evolution of most of isokinetic parameters. Finally, during our 3rd work, we studied the evolution of many markers (biological, physiological and psychological) during a sports season. The main results of our work show (i) a decrease in the mean values of VFC concerning HF and RMSSD values, coupled with a slight increase in HR in T4, suggesting a decrease inparasympathetic activity in the supine position, (ii) an increase in the values in the T4 fitness questionnaire and (iii) a decrease in the values of [C]sg , [F]sg , IGF-1 and Hematocrit, respectively in T5 and T4. Testosterone results show a significant increase in T5. They showed no significant change in CPK and IGFBP-3 values. This work emphasizes the need to develop the strength and power qualities most effectively during Pc2P and to target the most e-relevant markers for longitudinal tracking of handball players
Nédélec, Mathieu. "Fatigue et récupération en football". Thesis, Lille 2, 2012. http://www.theses.fr/2012LIL2S014.
Pełny tekst źródłaDuring periods when the schedule is particularly congested (i.e. two matches per week over several weeks), the recovery time allowed between two successive matches may be insufficient. As a result, players may experience underperformance and/or injury. The overall aim of the present thesis was to identify underlying factors (environmental and intrinsic factors, playing position) that contribute to fatigue and recovery time of professional soccer players after a match. Four experimental studies were conducted to investigate the influence of soccer running activity profile, playing actions performed during a match (i.e. contact, jump, shot/long pass, tackle, change of direction) and playing surface (natural grass versus artificial turf) on the recovery kinetics of physical performance, cognitive performance, subjective ratings and biochemical parameters. Results showed that soccer running performance does not appear to be the main cause for post soccer match-induced fatigue. Post-match fatigue and recovery time depend on playing actions performed during the match (contact, jump, shot/long pass and change of direction). Post-match fatigue depends on playing position (goalkeepers versus outfield players). Playing surface does not impact recovery kinetics among regular artificial turf players. Present results may promote the prescription of more efficient and individualized recovery practices after soccer match
Alaphilippe, Anne. "Suivi physiologique du jeune rugbyman de haut niveau : approche biométrique, biologique, biochimique et cardiovasculaire des effets de l'entraînement et des charges de compétitions". Thesis, Clermont-Ferrand 2, 2012. http://www.theses.fr/2012CLF20064/document.
Pełny tekst źródłaLajoie, Claude. "Détermination et étude physiologique de l'état stable maximal de lactatémie soutenable pendant 60 minutes chez des cyclistes de compétition". Thèse, Université du Québec à Trois-Rivières, 1998. http://depot-e.uqtr.ca/3554/1/000651926.pdf.
Pełny tekst źródłaPiaudel, Gwénaël. "Survie et adaptation de Campylobacter Jejuni à un choc froid aqueux : étude physiologique et de l'expression génétique". Rennes 1, 2005. http://www.theses.fr/2005REN1S059.
Pełny tekst źródłaElloumi, Mohamed. "Suivi hormonal, métabolique, nutritionel et comportemental du sportif de haut niveau : relation avec la compétition et la récupération". Clermont-Ferrand 2, 2004. http://www.theses.fr/2004CLF20047.
Pełny tekst źródłaGénin, Fabien. "Economie et conservation de l'énergie au cours du cycle saisonnier chez un primate, Microcebus murinus : approches physiologique, comportementale et écologique". Paris 13, 2002. http://www.theses.fr/2002PA132007.
Pełny tekst źródłaGeslin, Thomas. "Territorialité en périodes de reproduction et d'hivernage chez la gorgebleue à miroir (Luscinia svecica) : aspect écologique, démographique et physiologique". Rennes 1, 2002. http://www.theses.fr/2002REN10087.
Pełny tekst źródłaMaurelli, Olivier. "Effets d'une saison de compétition sur les caractéristiques musculaires, biologiques et psychologiques de joueurs de handball de niveau international". Thesis, Amiens, 2018. http://www.theses.fr/2018AMIE0062/document.
Pełny tekst źródłaThe objective of this thesis was to analyze the influence of a sports season on the physical, physiological and psychological characteristics of handball players of the Montpellier Agglomération Handball club, one of the best European clubs. At first (Study 1), we were interested in the evolution of the isokinetic muscular profile of the lower limbs during the pre-competitive preparation phase (Pc2P). Although this period is short (8 weeks), our results show that most of the values of strength, power (at 30±.s¡1, 60±.s¡1 and 240±.s¡1, in concentric and eccentric), and different ratios (agonist vs antagonist, dominant vs non-dominant as wellas mixed ratio) increase significantly during Pc2P. In a second phase (Study 2), we were interested in the evolution of the isokinetic muscular profile of the lower limbs during the competition period. Our results show that a competitive season does not significantly affect the evolution of most of isokinetic parameters. Finally, during our 3rd work, we studied the evolution of many markers (biological, physiological and psychological) during a sports season. The main results of our work show (i) a decrease in the mean values of VFC concerning HF and RMSSD values, coupled with a slight increase in HR in T4, suggesting a decrease inparasympathetic activity in the supine position, (ii) an increase in the values in the T4 fitness questionnaire and (iii) a decrease in the values of [C]sg , [F]sg , IGF-1 and Hematocrit, respectively in T5 and T4. Testosterone results show a significant increase in T5. They showed no significant change in CPK and IGFBP-3 values. This work emphasizes the need to develop the strength and power qualities most effectively during Pc2P and to target the most e-relevant markers for longitudinal tracking of handball players
Bouzigon, Romain. "Développement d'une nouvelle technologie de cryothérapie Corps Entier". Thesis, Besançon, 2016. http://www.theses.fr/2016BESA2055/document.
Pełny tekst źródłaThis thesis has been completed as part of a CIFRE agreement between the research and development department of the Cryantal Company (Lognes, France) and the C3S (EA4660) and MOVE (EA6314) laboratories from the Universities of Franche-Comté and Poitiers. The aim of the thesis was the development of a new technology of whole-body Cryotherapy (WBC) chamber. The various studies that we conducted centred on : – the identification of technological and methodological requirements from field studies and the analysis of scientific literature; – the development of a WBC chamber prototype according to the identified requirements; – the technological validation of the prototype to its industrialization; and – the evolution of the prototype toward a marketable version. The thesis was divided into two parts. The first part highlights the practical applications and the technological requirements to identify the limits and the advantages of the existing methodologies and technologies in order to develop a new WBC chamber device. Studies performed in the field during competitions showed that WBC is well tolerated by athletes and can be used during heavy competition periods and/or during training periods. We also demonstrated that female athletes with lower body-mass indexes seem to be much more sensitive to cold than female athletes with higher body-mass indexes. The literature review reported a lack of data concerning the actual temperature inside the WBC chamber and cabin. The lack of methodological information for the exposure protocol was also pointed out. It creates the link between the field of application of the WBC and the different technology used. The second part presents the technological development of the new WBC chamber prototype, its validation, and its optimisation in order to be commercialized. This part includes a validation study of the prototype based on the effects of a 3-minute exposure on the skin temperature decrease of exposed individuals. The results showed a similar decrease to those observed with other WBC existing technologies. This is certainly due to the homogeneity of the temperature of exposure and the new technology developed. Preliminary measurements of the prototype allowed for the prospect of the commercialization of this new WBC chamber
Tallec, Tiphaine. "Effets d'un double gradient azote/soufre sur la structure des communautés végétales de prairies bas-normandes : dynamique de l'acquisition des ressources minérales et des interactions compétitives". Caen, 2008. http://www.theses.fr/2008CAEN2011.
Pełny tekst źródłaThe importance of soil S depletion, due to an increased export from plant harvest combined with a decreased atmospheric S deposition, requires to study its impact on the dynamics of grassland communities, under different N supplies. A pluri-scale study was carried out in situ, and in mesocosm consisting of populations or of model communities with 4 dominant species. Before and after defoliation, the relative production, the abundance and the competitiveness of the species were analyzed through their N and S use efficiency using a simultaneous 15N/34S labelling. Their response was conditioned by their physiological ability to mobilize resources, but also to compete for the latter in N-rich soil. A strong co-regulation between N and S metabolisms was highlighted. An increased S availability enhanced production for all scale situations. The S effects on Poaceae appeared only at high N availability, by a stimulation of their soil N use efficiency, optimizing N fertilizer use. Those on clover induced the stimulation (i) of the atmospheric N fixation, even at high N availability, (ii) of its vegetative multiplication and (iii) of N reserves accumulation in stolons. In situ and in community, S input increased the abundance of dominated species and, with high N fertilization, maintained or increased specific diversity. Overall, a rational S input appeared as an important tool for grassland management
Rama, Daniel. "Immunoanalyse des troponines I appliquée à l'identification de l'origine squelettique et-ou cardiaque des altérations cellulaires induites par l'exercice physique : étude de l'effet de l'entraînement et de la compétition de haut niveau". Montpellier 1, 1996. http://www.theses.fr/1996MON14001.
Pełny tekst źródłaGuillemot, Joannès. "Productivity and carbon allocation in European forests : a process-based modelling approach". Thesis, Paris 11, 2015. http://www.theses.fr/2015PA112091/document.
Pełny tekst źródłaThe processes that underlie forest productivity and C allocation dynamics in trees are still poorly understood. Forest growth has for long been thought to be C limited, through a hypothesized causal link between C supply and growth (source control). This C-centric paradigm underlies most of the C allocation rules formalized in process-based models (PBMs). However, the source limitation of growth has been questioned by several authors, arguing that meristem activities are more sensitive than C assimilation to environmental stresses (e.g., water deficit and low temperatures). Moreover, the effect of management, which strongly affects forest functioning and wood growth, is not accounted for in most of the PBMs used to project the future terrestrial C sink. Our main objective in this thesis was to move forward into our understanding of the constraints that affect - or will affect - the wood productivity in European forests, from present to the end of the 21 st century. We addressed this objective through the improvement of the representation of the forest productivity and C allocation in the CASTANEA PBM, building on a detailed analysis of the key drivers of annual wood productivity in French forests over the last 30 years (the species studied are Fagus sylvatica, Quercus ilex, Quercus petraea, Quercus robur and Picea abies). Our results supported the premise that the annual wood growth of the studied species is under a complex control including both source and sink limitations. The inter-site variability in the fraction of C allocatedto stand wood growth was predominantly driven by an age-related decline. At the tree level, we showed that annual wood growth was well predicted by the individual size. The size-asymmetry of growth, i.e., the advantage of big trees in the competition for resources, increased consistently with the whole stand productivity at both inter-site and inter-annual scales. On the basis of our findings, we developed a new C allocation scheme in the CASTANEA PBM, which integrate a combined source-sink limitation of wood growth. The new calibrated model captured both the inter-annual and inter-site changes in stand wood growth that was observed across national environmental gradients. The model was also successfully evaluated against a meta-analysis of carbohydrate reserve pools in trees and satellite-derived leaf area index estimates. Our results indicated that the representation of the environmental control of sink activity does not affect the qualitative predictions of the future of the European forest productivity previously obtained from source-driven PBMs. However, the current, source-driven generation of PBMs probably underestimates the spatial heterogeneity of the effects of climate change on forest growth that arise from sink limitations.Further, we successfully used our findings regarding the dependences of annual wood growth at tree level (i.e., empirical rules of tree growth competition) to calibrate a module for the simulation of the individual growth of trees in the CASTANEA model. The coupled model was used to assess the potential effects of management on forest functioning and wood growth across France. We identified the areas where management efforts may be concentrated in order to mitigate near-future drought impact on national forest productivity. Around a quarter of the French temperate oak and beech forests are currently in zones of high vulnerability, where management could thus mitigate the influence of climate change on forest yield
Kim, Hae Koo. "Modélisation du contrôle environnemental et génétique du tallage chez le sorgho". Montpellier 2, 2008. http://www.theses.fr/2008MON20074.
Pełny tekst źródłaThis thesis develops a conceptual modelling framework formalizing the environmental (E) and genetic (G) components of tillering control by carbohydrate (C) assimilate availability in sorghum (supply/demand ratio, S/D). This concept was elaborated and tested across five experiments and six contrasting genotypes in terms of tillering ability. The results showed that regulation of tillering was strongly related to its competition with main stem development and leaf morphogenesis, by influencing the appearance frequency of the lower-rank tillers. An indicator of internal competition for C, S/Dindex, was developed and allowed to explain tillering response across the range of G and E investigated. Once confirmed by analysis of sugar distribution within the plant, this indicator was applied (i) to support a genetic study, which identified three quantitative trait loci (QTLs) associated with tillering ability, two of which could be specifically associated with genetic components of S/Dindex (related to leaf width and a S/D threshold for tillering); and (ii) to improve and evaluate an existing plant model (EcoMeristem). Results of this study open new opportunities to investigate the following: (i) G and E bases of the relationship between C dynamics and tillering ability, (ii) the stability of model-based QTLs and (iii) further improvement of EcoMeristem and other models such as APSIM to connect them to genetic information and help develop new sorghum ideotypes
Larose, Laurence. "Modélisation de la croissance architecturale et radiale du pin blanc dans l’est du Canada selon des facteurs environnementaux et climatiques". Thèse, 2018. http://hdl.handle.net/1866/21272.
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