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| 1 | 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显示文摘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 pain.The 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 personnel.Methods:Eighteen participants underwent 12 weeks of functional strength training(n=12)or the control protocol(n=6)without additional strength training.Pre-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 m.sternocleidomastoideus,m.trapezius,and deep neck muscles.Furthermore,during a long-arm centrifuge(+1.4 and+3Gz)protocol,the muscular activity levels of the m.sternocleidomastoideus,m.trapezius and m.erector spinae muscles were assessed without a flight helmet,with a helmet,and with a helmet and night vision goggles.Each participant’s perception of muscular strain was noted immediately after the long-arm centrifuge protocol.Results: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 groups.Conclusions:Twelve weeks of functional strength training improves the maximal isometric strength and volume of neck and shoulder muscles and leads to lower relative muscle activation upon exposure to elevated Gz forces in a long-arm centrifuge. | Monika Rausch Frank Weber Sven Kühn Carla Ledderhos Christoph Zinner Billy Sperlich | 2021 | Military Medical Research2021，8，4： | 4 |
| 2 | Regulatorg mechanism in endoluminal release of serotorin and substance P from feline jejunum显示文摘 | Grontad K Dah/strom A Zinner MJ | 1987 | Dig Dis Sci1987，32，4： | 1 |
| 3 | A phase 3, muhicenter, open- label, randomized study of abarelix versus leuprolide acetate in men with prostate cancer显示文摘 | Mcleod D Zinner N Tomera K | 2001 | Urology2001，58，5： | 1 |
| 4 | Slow cooling of deep crustal granulite and Pb-loss in zircon 显示文摘 | Ashwal L D Tucker R D Zinner E K | 1999 | Geochimica et Cosmochimica Acta1999，63，18： | 1 |
| 5 | A phase 3, multicenter, open-label, randomized study of abarelix versus leuprolide acetate in men with prostate cancer显示文摘 | Mcleod D Zinner N Tomera K | 2001 | Urology2001，58，5： | 1 |
| 6 | The distribu- tion of aluminum-26 in the early Solar System-a reap- praisal 显示文摘 | MacPherson G J Davis A M Zinner E K | 1995 | Meteoritics1995，30，4： | 1 |
| 7 | A phase 3,multicenter,open-label,randomized study of abarelix versus leuprolide acetate in men with prostate cancer显示文摘 | McLeod D Zinner N Tomera K | 2001 | Urology2001，58，： | 1 |
| 8 | Regulatory mech-Anism in endoluminal release of serotonin and substance P from feline jejunum显示文摘 | Gronstad K Dahlstrom A Zinner MJ | 1987 | Dig Dis Sci1987，32，4： | 1 |
| 9 | Efficacy of solifenacin in patients previously treated with tolterodine extended release 4 mg:results of a 12-week,multicenter,open-label,flexible-dosestudv显示文摘 | Chancellor MB Zinner N Whitmore K | 2008 | ClinTher2008，30，： | 1 |
| 10 | RegUlatory mechanism in endoluminal release of serotonin and substance Pfrom feline jejunum显示文摘 | Gronstad K Dahlstrom A Zinner MJ et a1 | 1987 | Dig DiS Sci1987，32，4： | 1 |
| 11 | Emission Spectra of Europium ( II ) -diketona Complexes with n-bases显示文摘 | Trikha A K Zinner L B Zinner K | 1996 | Polyhedron1996，15，10： | 1 |
| 12 | Aphase 3, multicenter, open-label, randomized study of abarelix versus leuprolide acetate in men with prostate cancer 显示文摘 | McLeod D Zinner N Tomera K | 2001 | Urology2001，58，： | 1 |
| 13 | Luminescence and structure of europium compound 显示文摘 | Vicentini G Zinner L B Zukerman-Schpoctor J Zinner K | 2000 | Coordination Chemistry Reviews2000，196，： | 1 |
| 14 | Building the repertoire of dispensable chromosome regions in Bacillus subtilis entails major refinement of cognate large-scale metabolic model显示文摘 | Tanaka K Henry CS Zinner JF | 2013 | Nucleic Acids Research2013，41，1： | 1 |
| 15 | Efficacy of solifenacin inpatients previously treated with tolterodine extended release 4 mg: resultsof a 12-week, multicenter, open-label, flexible-dose study显示文摘 | Chancellor MB Zinner N Whitmore K | 2008 | Clin Ther2008，30，10： | 1 |
| 16 | Luminescence and structure of europium compounds显示文摘 | G Vicentini L.B Zinner J Zukerman-Schpector K Zinner | 2000 | Coordination Chemistry Reviews2000，，1： | 1 |
| 17 | A phase 3,multicenter,openlabel,randomized study of abarelix versus leuprolide acetate in men with prostate cancer显示文摘 | McLeod D Zinner N Tomera K | 2001 | Urology2001，58，5： | 1 |
| 18 | Efficacy of solife- nacin in patients previously treated with toherodine extended re- lease 4 rag: results of a 12-week, multicenter, open-label, flexi- ble-dose study 显示文摘 | Chancellor MB Zinner N Whitmore K | 2008 | Clin Ther2008，30，： | 1 |
| 19 | Presolar silicon carbide from the Indareh (EH4) meteorite: Comparision with silicon carbide populations from other meteorite classes 显示文摘 | Russell S S Ott U Alexander C M Zinner E K AMen J W Pillinger C T | 1997 | Meteoritics & Planet Sci1997，32，： | 1 |
| 20 | A phase 3, muticenter, open- lable,randominzed study of abarelix versus leuprolide acetate in men with prostate cancer显示文摘 | Meleod D Zinner N Tomerra K | 2011 | Urology2011，58，5： | 1 |
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