[Whole-body training using HUBER® system in physical therapy rehabilitation: a systematic review]. / Rééducation globale à l'aide du système HUBER® en kinésithérapie : une revue systématique de la littérature.

INTRODUCTION: HUBER®, an isometric strengthening device, has been promoted as rehabilitation tool for a wide population of patients presenting heterogenous profiles. METHODS: Medline and the Cochrane Central Register of Controlled Trials (CENTRAL) were searched. Only interventional studies aiming to assess the effectiveness of HUBER® device (any versions, any protocol of intervention used) on physical rehabilitation outcomes of adults were included. Quality of studies was assessed using Cochrane RoB tools. RESULTS: Out of 142 references, six interventional studies were included in this systematic review. The number of participants included per study varied from 12 to 53, length of intervention varied from 4 to 8 weeks and number of sessions per week varied from 2 to 4. Different profiles of participants were included. Globally, training sessions using the HUBER® device showed moderate beneficial effects on the following outcomes: morphological characteristics, strength, balance and muscle power. The overall quality of the included studies was, however, rated as moderate to low. CONCLUSION: Because of its capacity to collect various physiological parameters simultaneously, the HUBER® device seems to be an interesting rehabilitation tool.

INTRODUCTION: HUBER® est un dispositif de renforcement isométrique qui a été développé comme outil de rééducation pour des profils de patients présentant des pathologies variées. Méthodes : Medline et le registre Cochrane des essais contrôlés (CENTRAL) ont été consultés. Seules les études interventionnelles visant à évaluer l'efficacité du dispositif HUBER® (toutes versions, tout protocole d'intervention utilisé) sur les objectifs de la réadaptation physique des adultes ont été incluses. La qualité des études a été évaluée à l'aide des outils Cochrane RoB. Résultats : Sur 142 références identifiées par notre stratégie de recherche, six études interventionnelles répondaient à nos critères d'inclusion et ont été incluses dans cette revue systématique. Le nombre de participants inclus par étude variait de 12 à 53, la durée de la rééducation s'étendait de 4 à 8 semaines et le nombre de séances par semaine variait de 2 à 4. Différents profils de participants ont été inclus. Globalement, les entraînements utilisant le dispositif HUBER® ont montré des effets bénéfiques significatifs modérés sur les mesures suivantes : caractéristiques morphologiques, force, équilibre et puissance musculaire. La qualité globale des études incluses a toutefois été jugée modérée à faible. CONCLUSION: En raison de sa capacité à évaluer simultanément différents paramètres physiologiques, le dispositif HUBER® semble être un outil de rééducation intéressant.

Early infections by myxoma virus of young rabbits (Oryctolagus cuniculus) protected by maternal antibodies activate their immune system and enhance herd immunity in wild populations.

The role of maternal antibodies is to protect newborns against acute early infection by pathogens. This can be achieved either by preventing any infection or by allowing attenuated infections associated with activation of the immune system, the two strategies being based on different cost/benefit ratios. We carried out an epidemiological survey of myxomatosis, which is a highly lethal infectious disease, in two distant wild populations of rabbits to describe the epidemiological pattern of the disease. Detection of specific IgM and IgG enabled us to describe the pattern of immunity. We show that maternal immunity attenuates early infection of juveniles and enables activation of their immune system. This mechanism associated with steady circulation of the myxoma virus in both populations, which induces frequent reinfections of immune rabbits, leads to the maintenance of high immunity levels within populations. Thus, myxomatosis has a low impact, with most infections being asymptomatic. This work shows that infection of young rabbits protected by maternal antibodies induces attenuated disease and activates their immune system. This may play a major role in reducing the impact of a highly lethal disease when ecological conditions enable permanent circulation of the pathogen.

Exploration forays in juvenile European hares (Lepus europaeus): dispersal preludes or hunting-induced troubles?

BACKGROUND: Movements of animals have important consequences, at both the individual and population levels. Due to its important implications in the evolutionary dynamics of populations, dispersal is one of the most studied types of movement. In contrast, non-permanent extra home-range movements are often paid less attention. However, these movements may occur in response to important biological processes such as mating or predation avoidance. In addition, these forays are often preludes to permanent dispersal, because they may help individuals gain cues about their surroundings prior to settlement in a new place.In the European hare, exploration forays occur predominantly in juveniles, the time at which most hares disperse. In France, the timing of dispersal also overlaps with the hare hunting period. However, the determinants of such behaviour have not yet been studied. Herein, we investigate whether these non-permanent explorations are dispersal attempts/preludes or, in contrast, whether they are triggered by other factors such as disturbances related to hunting. RESULTS: Contrary to natal dispersal, we did not find strong male-bias in the propensity to engage in explorations. Exploration forays occurred less in juveniles than in adults and later in the season than natal dispersal. This was the case both for philopatric movements and for movements occurring after dispersal and settlement. These movements were also more likely to occur during the hare hunting period and the mating season. CONCLUSIONS: We suggest that explorations in hares are triggered by factors other than dispersal and that hares may respond to hunting disturbances. Overall, we emphasize the need to account for human-related predation risk as a factor driving space-use in harvested species.

A multi-event model to study stage-dependent dispersal in radio-collared hares: when hunting promotes costly transience.

Behavioral ecologists have often assumed that dispersal is costly mainly because of unfamiliarity with traversed habitats during dispersal and energy costs of the movement per se; thus, dispersers that have successfully settled should experience survival rates comparable to those of philopatric individuals. In this paper, we tested that hypothesis using 152 radio-collared European hares in a harvested population. We developed a multi-event capture recapture model, combining telemetry data and recoveries and separately modeling the foray probability, the settlement probability, and the permanent dispersal probability. The parameterization introduced here raises the possibility of separately testing effects on survival and dispersal probabilities at each stage of dispersal (departure, transience, and settlement). In accordance with our expectations, we reveal that dispersers incur higher mortality risks during transience and the early settlement period than philopatric individuals or settled dispersers. We also found that dispersers suffer from higher risks of being shot. Those results illustrate that unfamiliarity with the habitat during transience makes dispersal costly and that settled dispersers may enjoy survival rates comparable to those of philopatric individuals. Surprisingly, we also found that individuals have a higher probability of foraying during the hunting season. We suggest that hunting and related disturbances increase dispersal costs both by increasing mortality risk during transience and (perhaps) by increasing movement rates. We emphasize the need to take human pressures into account as factors that may drive the demographics of movements in populations.