| Chen HH |
------>authors3_c= ------>paper_class1=1 ------>Impact_Factor=0.832 ------>paper_class3=2 ------>paper_class2=1 ------>vol=75 ------>confirm_bywho=None ------>insert_bywho=hchen ------>Jurnal_Rank=59.7 ------>authors4_c= ------>comm_author= ------>patent_EDate=None ------>authors5_c= ------>publish_day=1 ------>paper_class2Letter=None ------>page2=167 ------>medlineContent= ------>unit=000 ------>insert_date=20081204 ------>iam=1 ------>update_date=None ------>author=??? ------>change_event=1 ------>ISSN= ------>authors_c= ------>score=500 ------>journal_name=Aviat Space Environ Med ------>paper_name=An electromyographic assessment of the anti-G straining maneuver. ------>confirm_date=None ------>tch_id=096064 ------>pmid=14960053 ------>page1=162 ------>fullAbstract=BACKGROUND: The anti-G straining maneuver (AGSM), used by aircrew to enhance their +Gz tolerance and to reduce the potential risk of G-induced loss of consciousness, has been recognized as an effective technique. The purpose of this study was to establish an objective tool to evaluate the effectiveness of an aircrew member~s AGSM. METHODS: There were 20 healthy subjects who participated in the study, including 8 senior aviation physiological trainers and 12 trainees. The former were familiar with the anti-G maneuver and had experienced high +Gz exposure, the latter had never been exposed to any high +Gz stress before the study. The analytic method of electromyography (EMG) was used to investigate the physical characteristics of the L-1 AGSM. RESULTS: Comparison of the EMG data from the two groups indicated that the mean duration of a breathing cycle of the trainer group was significantly longer than that of the trainee group (p < 0.001). The buccinator was the muscle that had the most rapid firing rate in both groups (p < 0.001). The trainer group had a significantly faster firing rate of the buccinator than the trainee group (p = 0.03). In addition, the trainee group performed the AGSM with a firing sequence of muscles that was different from that of the trainer group. CONCLUSIONS: An automated and quantitative system based on EMG can be used during AGSM training to augment or replace the current subjective evaluation of the trainee~s performance. ------>tmu_sno=None ------>sno=20478 ------>authors2=Wu YC ------>authors3=Guo MD ------>authors4= ------>authors5= ------>authors6= ------>authors6_c= ------>authors=Chen HH ------>delete_flag=0 ------>SCI_JNo=None ------>authors2_c= ------>publish_area=0 ------>updateTitle=An electromyographic assessment of the anti-G straining maneuver. ------>language=2 ------>check_flag=None ------>submit_date=None ------>country=None ------>no=2 ------>patent_SDate=None ------>update_bywho=None ------>publish_year=2004 ------>submit_flag=None ------>publish_month=2 |