Titre : Zea mays

Zea mays : Questions médicales fréquentes

Termes MeSH sélectionnés :

Exercise
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"https://questionsmedicales.fr/mesh/D003313?mesh_terms=Exercise&page=2#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment identifier une variété de maïs ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "L'identification se fait par l'examen des caractéristiques morphologiques des épis et des grains." } }, { "@type": "Question", "name": "Quels tests pour détecter des maladies du maïs ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "Des tests de laboratoire comme l'analyse de l'ADN et l'observation des symptômes sur les feuilles." } }, { "@type": "Question", "name": "Quels signes indiquent une carence en nutriments ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Des feuilles jaunies, un retard de croissance et des épis mal formés peuvent indiquer une carence." } }, { "@type": "Question", "name": "Comment évaluer la qualité du maïs ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "La qualité se mesure par l'humidité, la taille des grains et l'absence de contaminants." } }, { "@type": "Question", "name": "Quels symptômes de maladies fongiques ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Des taches foliaires, des pourritures des racines et des épis déformés sont des symptômes courants." } }, { "@type": "Question", "name": "Quels symptômes d'une infestation d'insectes ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Des trous dans les feuilles, des épis mangés et une croissance ralentie sont des signes d'infestation." } }, { "@type": "Question", "name": "Comment reconnaître le flétrissement ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Le flétrissement se manifeste par des feuilles tombantes et une décoloration, souvent due à un stress hydrique." } }, { "@type": "Question", "name": "Quels signes de stress hydrique ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "Des feuilles enroulées, une croissance réduite et des épis petits peuvent indiquer un stress hydrique." } }, { "@type": "Question", "name": "Quels symptômes d'une maladie virale ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Des motifs de mosaïque sur les feuilles et une croissance anormale des épis sont des indicateurs." } }, { "@type": "Question", "name": "Comment détecter une intoxication par pesticides ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "Des symptômes comme le jaunissement des feuilles et la mort des plants peuvent indiquer une intoxication." } }, { "@type": "Question", "name": "Comment prévenir les maladies du maïs ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Utiliser des semences résistantes et pratiquer la rotation des cultures pour réduire les risques." } }, { "@type": "Question", "name": "Quelles pratiques pour éviter les infestations d'insectes ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Maintenir une bonne hygiène des cultures et utiliser des pièges à insectes pour surveiller les populations." } }, { "@type": "Question", "name": "Comment éviter le stress hydrique ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Planifier l'irrigation en fonction des besoins des cultures et des conditions climatiques." } }, { "@type": "Question", "name": "Quelles mesures pour la qualité du sol ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Effectuer des analyses de sol régulières et appliquer des amendements organiques pour améliorer la qualité." } }, { "@type": "Question", "name": "Comment prévenir les carences nutritionnelles ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Utiliser des engrais équilibrés et surveiller régulièrement l'état nutritionnel des plantes." } }, { "@type": "Question", "name": "Quels traitements pour les maladies fongiques ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "L'application de fongicides et la rotation des cultures sont des méthodes efficaces." } }, { "@type": "Question", "name": "Comment traiter les infestations d'insectes ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "Utiliser des insecticides spécifiques et introduire des prédateurs naturels pour contrôler les populations." } }, { "@type": "Question", "name": "Quelles solutions pour le stress hydrique ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Améliorer l'irrigation et utiliser des variétés résistantes à la sécheresse peuvent aider." } }, { "@type": "Question", "name": "Comment gérer les carences nutritionnelles ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "Appliquer des engrais appropriés et ajuster le pH du sol pour corriger les carences." } }, { "@type": "Question", "name": "Quels traitements pour les maladies virales ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Il n'existe pas de traitement spécifique, mais la prévention par la sélection de semences est cruciale." } }, { "@type": "Question", "name": "Quelles complications des maladies fongiques ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Les maladies fongiques peuvent entraîner une perte de rendement et des contaminations mycotoxiques." } }, { "@type": "Question", "name": "Quels risques d'infestation d'insectes ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Les infestations peuvent causer des dommages structurels aux plantes et réduire la qualité des grains." } }, { "@type": "Question", "name": "Quelles conséquences du stress hydrique ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Le stress hydrique peut entraîner une réduction significative des rendements et des pertes économiques." } }, { "@type": "Question", "name": "Quels effets des maladies virales ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Les maladies virales peuvent provoquer des déformations des épis et une baisse de la productivité." } }, { "@type": "Question", "name": "Quelles complications des carences nutritionnelles ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "Les carences peuvent entraîner des déformations des plantes et une susceptibilité accrue aux maladies." } }, { "@type": "Question", "name": "Quels facteurs augmentent le risque de maladies ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "L'humidité excessive, la densité de plantation et l'utilisation de semences non résistantes augmentent les risques." } }, { "@type": "Question", "name": "Comment le climat influence-t-il le maïs ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Des conditions climatiques extrêmes, comme la sécheresse ou l'humidité, peuvent affecter la croissance." } }, { "@type": "Question", "name": "Quels sols favorisent les maladies ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "Les sols mal drainés et riches en matière organique peuvent favoriser le développement de maladies." } }, { "@type": "Question", "name": "Comment la monoculture affecte-t-elle le maïs ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "La monoculture peut accroître la vulnérabilité aux maladies et réduire la biodiversité du sol." } }, { "@type": "Question", "name": "Quels sont les risques liés aux pesticides ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Une utilisation excessive de pesticides peut entraîner des résistances et des impacts environnementaux négatifs." } } ] } ] }

Sources (10000 au total)

The intensity of a resistance exercise session can be quantified by the work rate of exercise.

Athletes regularly perform resistance training, yet it is unknown how best to monitor its intensity. This study compared different resistance exercise intensity metrics to determine their sensitivity ... Following baseline testing for 10- and 3-repetition maximum (RM; squat and bench press), fourteen trained participants completed four volume-matched protocols in a randomised order: 3x10 with 85% 10RM... Internal intensity and work-rate metrics were highest for 3x1060s, followed by 3x10180s, 8x3120s and 8x3300s (p≤0.027). TI and II were higher for 8x3 than 3x10 protocols (p<0.001), but not different w... Work rate corroborated objective internal intensity metrics during resistance exercise, with the highest work rate session (3x1060s) also eliciting greater RPE scores than other protocols. In contrast...

Outcomes following supervised exercise and home-based exercise for patients with intermittent claudication.

Intermittent claudication (IC) is the most common symptom of peripheral arterial disease (PAD) which presents as a consequence of muscle ischaemia resulting from the atherosclerotic obstruction to art... Retrospective data were analysed to examine walking and ABPI outcomes for participants who completed a 12-week course of supervised or home-based exercise. All participants had a history of IC.... 46 participants (mean age 69±11 years; 76% male; 29% current smokers) referred for exercise were assessed, completed a 12-week course of exercise (home-based or supervised) and subsequently attended f... A 12-week course of supervised exercise results in significantly greater walking distance outcomes (COD and PWD) than unmonitored home-based exercise. In contrast with previous findings (Lane et al. 2... A 12-week programme of exercise favourably influenced walking and ABPI outcomes for patients with IC. Both home-based exercise and supervised individualised exercise increased walking distances, but t...

Physiological adaptations following vigorous exercise and moderate exercise with superimposed electrical stimulation.

Neuromuscular electrical stimulation (NMES) induces involuntary muscle contraction, preferentially promotes anaerobic metabolism, and is applicable for increasing exercise intensity. This study aimed ... Eight participants trained with a cycling ergometer at 100% of the ventilatory threshold (VT) (73.3% of peak oxygen consumption) (VOL), and another nine participants trained with the cycling ergometer... Rating of perceived exertion (RPE) in VOLES (12.00 ± 1.50) was significantly lower than in VOL (14.88 ± 1.81) (p < 0.05) during training sessions. Peak power output during the exercise tolerance test ... Our results suggest that both superimposing subtetanic NMES onto moderate-intensity voluntary exercise and vigorous voluntary intensity exercise induce the improvement in cardiovascular and metabolic ...

Relationship among subjective exercise experience, exercise behavior, and trait anxiety in adolescents.

To investigate the influence of subjective exercise experience on adolescent trait anxiety and to reveal the mediating effect of exercise behavior.... Using the Subjective Exercise Experience Scale (SEES), Physical Exercise Rating Scale (PARS-3), and Trait Anxiety Inventory (T-AI), a questionnaire survey was conducted among 500 adolescents in Southw... 1) Among adolescents, the exercise behavior of boys was significantly higher than that of girls (p < 0.05), and the subjective exercise experience of students aged 9 to 12 was significantly higher tha... The good subjective exercise experience not only has direct benefits for improving trait anxiety in adolescents but also helps to improve their exercise behavior, enrich daily physical exercise activi...