Titre : Perception visuelle

Perception visuelle : Questions médicales fréquentes

Termes MeSH sélectionnés :

Muscle Strength Dynamometer
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?\nComment la thérapie visuelle aide-t-elle ?\nLes lunettes corrigent-elles la perception ?\nQuand envisager une chirurgie oculaire ?\nQuels médicaments pour troubles visuels ?", "url": "https://questionsmedicales.fr/mesh/D014796?mesh_terms=Muscle+Strength+Dynamometer&page=3#section-traitements" }, { "@type": "MedicalWebPage", "name": "Complications", "headline": "Complications sur Perception visuelle", "description": "Quelles complications des troubles visuels ?\nComment les troubles visuels affectent-ils la vie quotidienne ?\nQuels risques de dépression avec troubles visuels ?\nLes troubles de la perception peuvent-ils s'aggraver ?\nQuelles sont les conséquences d'une agnosie visuelle ?", "url": "https://questionsmedicales.fr/mesh/D014796?mesh_terms=Muscle+Strength+Dynamometer&page=3#section-complications" }, { "@type": "MedicalWebPage", "name": "Facteurs de risque", "headline": "Facteurs de risque sur Perception visuelle", "description": "Quels facteurs de risque pour troubles visuels ?\nLe diabète augmente-t-il les risques visuels ?\nComment l'hypertension affecte-t-elle la vision ?\nLe stress influence-t-il la perception visuelle ?\nLes antécédents de traumatismes oculaires sont-ils un risque ?", "url": "https://questionsmedicales.fr/mesh/D014796?mesh_terms=Muscle+Strength+Dynamometer&page=3#section-facteurs de risque" } ] }, { "@type": "FAQPage", "mainEntity": [ { "@type": "Question", "name": "Comment évaluer la perception visuelle ?", "position": 1, "acceptedAnswer": { "@type": "Answer", "text": "Des tests de vision, comme l'optométrie, évaluent la perception visuelle." } }, { "@type": "Question", "name": "Quels examens pour troubles de la perception ?", "position": 2, "acceptedAnswer": { "@type": "Answer", "text": "L'IRM et l'électrorétinogramme aident à diagnostiquer les troubles de la perception." } }, { "@type": "Question", "name": "Quels signes indiquent un problème visuel ?", "position": 3, "acceptedAnswer": { "@type": "Answer", "text": "Des difficultés à voir, des illusions ou des distorsions visuelles peuvent indiquer un problème." } }, { "@type": "Question", "name": "Quand consulter un spécialiste de la vue ?", "position": 4, "acceptedAnswer": { "@type": "Answer", "text": "Consultez un ophtalmologiste si vous ressentez des changements soudains de vision." } }, { "@type": "Question", "name": "Quelles sont les causes de troubles visuels ?", "position": 5, "acceptedAnswer": { "@type": "Answer", "text": "Les causes incluent les maladies oculaires, les traumatismes et les troubles neurologiques." } }, { "@type": "Question", "name": "Quels symptômes de troubles de la perception ?", "position": 6, "acceptedAnswer": { "@type": "Answer", "text": "Les symptômes incluent la vision floue, les halos, et les difficultés de profondeur." } }, { "@type": "Question", "name": "Comment reconnaître une illusion visuelle ?", "position": 7, "acceptedAnswer": { "@type": "Answer", "text": "Les illusions visuelles se manifestent par des perceptions erronées d'objets ou de couleurs." } }, { "@type": "Question", "name": "Qu'est-ce que l'agnosie visuelle ?", "position": 8, "acceptedAnswer": { "@type": "Answer", "text": "L'agnosie visuelle est l'incapacité de reconnaître des objets malgré une vision intacte." } }, { "@type": "Question", "name": "Quels signes d'une fatigue visuelle ?", "position": 9, "acceptedAnswer": { "@type": "Answer", "text": "Les signes incluent des maux de tête, des yeux secs et une vision floue après un usage prolongé." } }, { "@type": "Question", "name": "Comment se manifeste la synesthésie visuelle ?", "position": 10, "acceptedAnswer": { "@type": "Answer", "text": "La synesthésie visuelle se manifeste par des associations involontaires entre couleurs et sons." } }, { "@type": "Question", "name": "Comment prévenir les troubles de la perception ?", "position": 11, "acceptedAnswer": { "@type": "Answer", "text": "Protégez vos yeux avec des lunettes de soleil et faites des examens réguliers." } }, { "@type": "Question", "name": "Quel rôle joue l'alimentation sur la vision ?", "position": 12, "acceptedAnswer": { "@type": "Answer", "text": "Une alimentation riche en vitamines A, C et E peut aider à maintenir une bonne vision." } }, { "@type": "Question", "name": "Comment réduire la fatigue visuelle ?", "position": 13, "acceptedAnswer": { "@type": "Answer", "text": "Faites des pauses régulières lors de l'utilisation d'écrans pour réduire la fatigue visuelle." } }, { "@type": "Question", "name": "Pourquoi éviter le tabac pour la vision ?", "position": 14, "acceptedAnswer": { "@type": "Answer", "text": "Le tabac augmente le risque de maladies oculaires comme la dégénérescence maculaire." } }, { "@type": "Question", "name": "L'exercice physique aide-t-il la vision ?", "position": 15, "acceptedAnswer": { "@type": "Answer", "text": "Oui, l'exercice régulier améliore la circulation sanguine, bénéfique pour la santé oculaire." } }, { "@type": "Question", "name": "Quels traitements pour troubles de la perception ?", "position": 16, "acceptedAnswer": { "@type": "Answer", "text": "Les traitements incluent la thérapie visuelle, les lunettes et parfois la chirurgie." } }, { "@type": "Question", "name": "Comment la thérapie visuelle aide-t-elle ?", "position": 17, "acceptedAnswer": { "@type": "Answer", "text": "La thérapie visuelle améliore la coordination œil-main et la perception visuelle." } }, { "@type": "Question", "name": "Les lunettes corrigent-elles la perception ?", "position": 18, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les lunettes corrigent les erreurs de réfraction et améliorent la perception visuelle." } }, { "@type": "Question", "name": "Quand envisager une chirurgie oculaire ?", "position": 19, "acceptedAnswer": { "@type": "Answer", "text": "La chirurgie est envisagée pour des problèmes structurels comme la cataracte ou le glaucome." } }, { "@type": "Question", "name": "Quels médicaments pour troubles visuels ?", "position": 20, "acceptedAnswer": { "@type": "Answer", "text": "Des médicaments peuvent traiter des conditions comme le glaucome ou les infections oculaires." } }, { "@type": "Question", "name": "Quelles complications des troubles visuels ?", "position": 21, "acceptedAnswer": { "@type": "Answer", "text": "Les complications incluent la perte de vision, l'isolement social et des troubles émotionnels." } }, { "@type": "Question", "name": "Comment les troubles visuels affectent-ils la vie quotidienne ?", "position": 22, "acceptedAnswer": { "@type": "Answer", "text": "Ils peuvent limiter les activités quotidiennes, affecter le travail et la mobilité." } }, { "@type": "Question", "name": "Quels risques de dépression avec troubles visuels ?", "position": 23, "acceptedAnswer": { "@type": "Answer", "text": "Les troubles visuels augmentent le risque de dépression en raison de l'isolement social." } }, { "@type": "Question", "name": "Les troubles de la perception peuvent-ils s'aggraver ?", "position": 24, "acceptedAnswer": { "@type": "Answer", "text": "Oui, sans traitement, certains troubles de la perception peuvent s'aggraver avec le temps." } }, { "@type": "Question", "name": "Quelles sont les conséquences d'une agnosie visuelle ?", "position": 25, "acceptedAnswer": { "@type": "Answer", "text": "L'agnosie visuelle peut entraîner des difficultés dans la reconnaissance d'objets et des interactions sociales." } }, { "@type": "Question", "name": "Quels facteurs de risque pour troubles visuels ?", "position": 26, "acceptedAnswer": { "@type": "Answer", "text": "Les facteurs incluent l'âge, les antécédents familiaux et les maladies chroniques." } }, { "@type": "Question", "name": "Le diabète augmente-t-il les risques visuels ?", "position": 27, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le diabète peut causer des complications oculaires comme la rétinopathie diabétique." } }, { "@type": "Question", "name": "Comment l'hypertension affecte-t-elle la vision ?", "position": 28, "acceptedAnswer": { "@type": "Answer", "text": "L'hypertension peut endommager les vaisseaux sanguins de l'œil, entraînant des troubles visuels." } }, { "@type": "Question", "name": "Le stress influence-t-il la perception visuelle ?", "position": 29, "acceptedAnswer": { "@type": "Answer", "text": "Oui, le stress peut affecter la concentration et la clarté de la perception visuelle." } }, { "@type": "Question", "name": "Les antécédents de traumatismes oculaires sont-ils un risque ?", "position": 30, "acceptedAnswer": { "@type": "Answer", "text": "Oui, les traumatismes oculaires augmentent le risque de troubles de la perception visuelle." } } ] } ] }

Sources (10000 au total)

Effectiveness of the Copenhagen adduction modified position stage 1: EMG measurements and hand-held dynamometer analysis in young and healthy men.

To verify the effectiveness of the use of a modified position of the Copenhagen Adduction (CA) stage 1 compared to the original position.... Cross-sectional study.... Laboratory.... 31 healthy men aged 23.7 ± 1.9 years with no recent or chronic general pathology.... Differences between EMG amplitudes for the adductor longus (AL), rectus femoris (RF) and semi tendinous (ST) during dynamic contractions and adductor maximal isometric voluntary contraction (MIVC) for... No significant differences were observed for EMG amplitudes of the AL (p-value = 0.724) and for the RF muscle (p-value = 0.337) and for the adductor force (p-value = 0.361) between the two positions. ... Muscle activity of the AL muscle and adductor force being similar in both positions, the CA stage 1 modified position could be of interest for rehabilitation after adductor injury or strengthening of ...

Reliability and criterion validity of handheld dynamometry for measuring trunk muscle strength in people with and without chronic non-specific low back pain.

Evaluating trunk strength is an important aspect of the physical examination of people with low back pain (LBP). Thus, reliable, valid, and easily applied measurement tools are needed to quantify trun... To determine within-day and between-day test re-test reliability and criterion validity of a handheld dynamometer (HHD) to evaluate maximum isometric trunk strength in people with chronic LBP and asym... Reliability and criterion validity study.... Twenty adult participants with chronic, non-specific LBP and 35 asymptomatic individuals participated. Isometric trunk flexion, extension, and rotation strength were evaluated with the HHD (Active for... Good to excellent within-day and between-day reliability was observed for people with LBP and asymptomatic individuals with (ICC... A HHD is a reliable, valid, and clinically applicable tool for the measurement of trunk strength in adults with and without chronic LBP....

A Cross-Sectional Validation Study of Camry EH101 versus JAMAR Plus Handheld Dynamometers in Colorectal Cancer Patients and Their Correlations with Bioelectrical Impedance and Nutritional Status.

Reduced muscle strength (dynapenia) and mass (atrophy) are prognostic factors in oncology. Measuring maximal handgrip strength with dynamometers is feasible but limited by the cost of the reference de... A cross-sectional study was conducted on colorectal cancer outpatients treated with chemotherapy or under active surveillance in our center from September 2022 to July 2023. Accuracy, reliability, and... A total of 134 participants were included. The median of maximal strength for the JAMAR Plus had a non-significant difference of 1.4 kg from the Camry EH101. The accuracy and reliability of the device... The Camry EH101 was a cost-effective alternative to JAMAR Plus in our sample....

Comparison of two electronic dynamometers for measuring handgrip strength.

Handgrip strength (HGS) is a strong predictor and easily applicable assessment, indicating a person's physical condition and health. However, many dynamometers are available; therefore, it is essentia... Seventy participants, aged between 23-88 (five men and five women in each decade from 20 to 80+), performed three attempts with each dynamometer (30-sec break between attempts) in a randomized order a... The overall Intraclass correlation coefficient was excellent (0.98). An average (SD) difference of 0.68 (2.2) kg (p = 0.04) was seen for the comparison of the strongest attempt for Baseline BIMS minus... Findings indicate low measurement error with high agreement and criterion validity for the comparison of Baseline BIMS Digital Grip Dynamometer and Jamar+ and that results of the two dynamometers can ...

Dynamometer based hand grip strength as a clinical tool for objective assessment of post-operative residual muscle weakness.

Residual neuromuscular block continues to be a significant postoperative complication despite neuromuscular monitoring. This study aims to determine the applicability of a hand-held forced dynamometer... The study included patients undergoing surgery under general anaesthesia. A demonstration was given to the patient on the usage of a dynamometer for handgrip strength and a peak expiratory flow meter ... Muscle strength was 50 to 60%, 75% and 100% of baseline at 15, 45 and 210 minutes after extubation, respectively. PEFR was 50 to 60%, 75% and 100% of baseline at 15, 60 and 180 minutes after extubatio... A significant reduction in the postoperative muscle strength can be detected using an objective forced dynamometer to measure handgrip strength even when train of four count has returned to unity and ...

Reliability and validity of common hip adduction strength measures: The ForceFrame strength testing system versus the sphygmomanometer.

The criterion validity of the sphygmomanometer was evaluated, relative to the Force Frame strength testing system. Test-retest reliability was assessed for both hip adduction and abduction strength.... Test-retest reliability study and criterion validity study.... 50 asymptomatic, field-sport athletes.... Maximal isometric hip adduction and abduction strength were measured. Interclass correlation coefficient(ICC... Intra-rater reliability for bilateral adduction testing using both ForceFrame and sphygmomanometer values revealed good-excellent reliability for both the 0° (ICC... Excellent reliability in hip adduction squeeze strength testing for both modes. However, there exists a 'good to moderate'-'fair' relationship between the Force Frame and sphygmomanometer....

Comparison of strength testing modalities in dysferlinopathy.

Dysferlinopathy demonstrates heterogeneity in muscle weakness between patients, which can progress at different rates over time. Changing muscle strength due to disease progression or from an investig... Patients were evaluated at each study visit using functional scales, manual muscle testing, and handheld dynamometry (HHD) at all 15 sites. A fixed-frame system (Fixed) was used at a subset of seven s... HHD and Fixed captured significant change across 1 year in summed muscle strength score of four muscle groups (P < .01). Strength summed scores were significantly correlated with functional scales (rh... Although both HHD and Fixed demonstrate change over 12 months, HHD is a less expensive option that provides data on a continuous scale and may be easier to implement. Due to variability in strength me...