Evolution of Gait Performance and Fear of Falling after a 10-Week Program of Exercise Training in Community Dwelling Older People

A pilot study was conducted to determine the effect of a 10-week, low intensity, exercise training program on fear of falling and gait in fifty (mean age 78.1 years, 79% women) community-dwelling volunteers. Fear of falling (measured by falls self-efficacy) and gait performance were assessed at baseline and one week after program completion. At follow-up, participants modestly improved their falls self-efficacy and gait speed. To investigate whether this effect differed according to participants' fear of falling, secondary analyses stratified by subject's baseline falls efficacy were performed. Subjects with lower than average falls efficacy improved significantly their falls efficacy and gait performance, while no significant change occurred in the others. Small but significant improvements occurred after this pilot training program, particularly in subjects with low baseline falls efficacy. These results suggest that measures of falls efficacy might be useful for better targeting individuals most likely to benefit from similar training programs.

Chimie et physique horticoles / par P.-P. Dehérain,...

Collection : Bibliothèque du jardinier

Effects of polymorphisms in beta1-adrenoceptor and alpha-subunit of G protein on heart rate and blood pressure during exercise test. The finnish cardiovascular study.

J Appl Physiol vol 100, no 2, pp 507-511, 2006

T-wave alternans predicts mortality in a population undergoing a clinically indicated exercise test.

Eur Heart J. 2007 Oct;28(19):2332-7. Epub 2007 Jul 25.

Heart rate variability derived from exercise ECG in the detection of coronary artery disease.

Physiol Meas. 2007 Oct;28(10):1189-200. Epub 2007 Sep 18.

Potassium channel KCNH2 K897T polymorphism and cardiac repolarization during exercise test: The Finnish Cardiovascular Study.

Scand J Clin Lab Invest. 2007 Aug 1;:1-11 [Epub ahead of print]

Promotion de l'activité physique au cabinet médical: manuel de référence à l'intention des médecins

[Table des matières] 1. Introduction: que vais-je apprendre? - quelques définitions - recommandations pour une activité physique favorable à la santé - comment mesure-t-on l'activité physique? - déterminants de l'activité physique. - 2. Épidémiologie de la sédentarité: prévalence de la sédentarité - coûts imputables à la sédentarité. - 3. Bénéfices pour la santé: un effet dose-réponse non linéaire - estimation des bénéfices de l'activité physique. - 4. Rôle du médecin de premier recours. - 5. Prise en charge: description générale d'un modèle de prise en charge - comment s'y prendre dans les détails - appréciation des risques liés à l'activité physique. - 6. Exemples d'outils: brochure pour les patients - podomètre: 10000 pas quotidiens pour sa santé! - 7. Autres ressources à disposition: site internet: www.paprica.ch. - Glossaire [Introduction (extrait)] Ce manuel décrit la perspective et le rôle du médecin de premier recours dans la promotion d'une activité physique bénéfique pour la santé. Il s'inscrit, avec la brochure d'accompagnement destinée aux patients, dans un concept global de promotion de l'activité physique au cabinet médical. Développé pour être le plus concis possible, ce manuel fait la synthèse des connaissances et des savoir-faire utiles à la pratique du conseil en activité physique au cabinet médical.

Effect of physical exercise on glycogen turnover and net substrate utilization according to the nutritional state.

To determine the metabolic effects of a single bout of exercise performed after a meal or in the fasting state, nine healthy subjects were studied over two 8-h periods during which net substrate oxidation was monitored by indirect calorimetry. On one occasion, exercise was performed 90 min after ingestion of a meal labeled with [U-13C]glucose [protocol meal-exercise (M-E)]. On the second occasion, exercise was performed after an overnight fast and was followed 30 min later by ingestion of an identical meal [protocol exercise-meal (E-M)]. Energy balances were similar in both protocols, but carbohydrate balance was positive (42.2 +/- 5.1 g), and lipid balance was negative (-11.1 +/- 2.0) during E-M, whereas they were nearly even during M-E. Total glycogen synthesis was calculated as carbohydrate intake minus oxidation of exogenous 13C-labeled carbohydrate (calculated from 13CO2 production). Total glycogen synthesis was increased by 90% (from 47.6 +/- 3.8 to 90.7 +/- 5.4 g, P < 0.0001) during E-M vs. M-E. Endogenous glycogen breakdown was calculated as net carbohydrate oxidation minus oxidation of exogenous carbohydrate and was increased by 44% (from 35.8 +/- 5.6 to 51.7 +/- 6.6 g, P < 0.004) during E-M. It is concluded that exercise performed in the fasting state stimulates glycogen turnover and fat oxidation.

Intoxication volontaire au mercure: conséquences biologiques et signification psychiatrique

A young patient suffering from schizophrenia had intense headaches and photophobia which were induced by intra-ocular injections of mercury. The clinical diagnosis was established once foreign bodies were visualized on regular X-rays of the patients skull. The mercury intoxication in combination with the secondary irreversible lesions to the eyes necessitated a bilateral enucleation and the use of a chelating treatment with sodium-dimercapto-1-propane sulfate (DMP). Automutilation is a very rare and dramatic complication of schizophrenia. The psychiatric handling and meaning of such dramatic automutilation is discussed in this case report together with a recent review of the toxicologic treatment of mercury intoxication in humans.

L'art de péter , essai théori-physique et méthodique, à l'usage des personnes constipées... Suivi de l'Histoire de Pet-en-l'Air & de la reine des Amazones... Nouvelle édition. Augmentée de la Société des francs-péteurs...

Comprend : Histoire du prince Pet-en-l'Air et de la reine des Amazones ; La Société des francs-péteurs