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The effects of 12 weeks of functional strength training on muscle strength,volume and activity upon exposure to elevated Gz forces in high-performance aircraft personnel

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Military medical Research 2021年第4期8卷 481-489页

作者： Monika Rausch Frank Weber Sven Kühn Carla Ledderhos Christoph Zinner Billy Sperlich multinational medical coordination centre/european medical command Andernacher Strasse 10056070 KoblenzGermany. German Air Force Center of Aerospace Medicine 82256 FuerstenfeldbruckGermany. Department of Radiology Bundeswehr Central Hospital56072 KoblenzGermany. Department of Sport University of Applied Sciences for Police and Administration of Hesse65199 WiesbadenGermany. Integrative&Experimental Exercise Science&Training Institute of Sport ScienceUniversity of Wuerzburg97082 WuerzburgGermany

Background:Technological advancements in modern military and acrobatic jet planes have resulted in extraordinary psychophysiological loads being exerted upon flying personnel,including inducing neck and back *** purpose of this study was to examine the effects of 12 weeks of functional strength training on 1)the volume and strength of the neck and shoulder muscles and 2)muscular activity upon exposure to helmets of different masses and elevated Gz forces in a long-arm centrifuge in high-performance aircraft ***:Eighteen participants underwent 12 weeks of functional strength training(n=12)or the control protocol(n=6)without additional strength ***-and post-intervention tests included evaluations of isometric strength of the head extensor muscles,flexion,and lateral flexion and rotation,as well as magnetic resonance imaging(MRI)to measure the volume of the ***,***,and deep neck ***,during a long-arm centrifuge(+1.4 and+3Gz)protocol,the muscular activity levels of the ***,*** and *** spinae muscles were assessed without a flight helmet,with a helmet,and with a helmet and night vision *** participant’s perception of muscular strain was noted immediately after the long-arm centrifuge ***:The maximal isometric strength in all exercises and muscle volumes increased in the training group but not the control group(P<0.05).Relative muscle activity(%MVC)with a helmet decreased after the intervention in the training but not the control group(P=0.01).Relative muscle activity while wearing a helmet and night vision goggles was higher after intervention in the control group than in the training group(P<0.01).The perceived muscular strain of the neck muscles induced by the long-arm centrifuge did not differ between the ***:Twelve weeks of functional strength training improves the maximal isometric strength and volume of neck and shoulder m

关键词： Fighter pilots Long-arm centrifuge Muscular strain Strength training Neck muscle High-performance aircraft Gz forces

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Management Problems of Trans-Frontier Yellow Fever Cases in Burkina Faso 2010

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Advances in Infectious Diseases 2013年第2期3卷 84-88页

作者： Seydou Yaro Aline R. Ouoba Alidou Zango Jérémi Rouamba Aly Drabo Soumeya Ouangraoua Fati Samandoulougou-Kirakoya Jean Macq Annie Robert Jean Bosco Ouedraogo centre Muraz Bobo-Dioulasso Burkina Faso

This last decade, Burkina Faso has been confronted with yellow fever confirmed cases, mainly from Western part of the country. In 2010, National Reference laboratory of yellow fever received 970 sera of suspected cases from the 65 Health Districts of the country. We found 11 positive results by ELISA test researching specific IgM against yellow fever. An aliquot of these eleven positive sera were sent to Dakar for confirmation by sero neutralization and RT-PCR. Eight have been confirmed by regional laboratory of Pasteur Institute of Dakar and three were classified as doubtful. Confirmed cases were manly notified by Sindou (4/8) and Mangodara (3/8) Health Districts and the last one came from Nongr-masson health District situated in the central part of the country. Three out of the four confirmed cases in Sindou Health District were resident from neighboring village in Ivory Cost. Conformed cases coming from neighboring villages of Ivory Cost were difficult to manage because of the relative lack of coordination between the two health centers responsible in two different countries. The three cases were not notified to Ivory Cost Health authorities and, in addition, they didn’t benefit from the Burkina Faso response plan. The goal of this work is to present results from National Reference yellow fever laboratory in 2010 in Burkina Faso and stressing trans-frontier cases management problems in order to suggest a multinational mechanism of response to fight against this disease more effectively.

关键词： Yellow Fever Surveillance Reference Laboratory Trans-Frontier Burkina Faso

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