首页
登录
职称英语
Can exercise be a bad thing? Sudden death during or soon after strenuous exe
Can exercise be a bad thing? Sudden death during or soon after strenuous exe
游客
2024-08-08
29
管理
问题
Can exercise be a bad thing? Sudden death during or soon after strenuous exertion on the squash court or on the army training grounds is not unheard of. Even trained marathon runners are not i【66】to fatal heart attacks. But no one knows just【67】common these sudden deaths linked to exercise are. The registration and investigation of such c【68】is very patchy; only a national survey could determine the true in【69】of sudden deaths in sports. But the climate of medical opinion is shifting in【70】of exercise, for the person recovering from a heart attack as well as the average lazy individual. Training can help the victim of a heart attack by lowering the【71】of oxygen the heart needs at any given level of work【72】the patient can do more before reaching the point【73】chest pains indicate a heart starved of oxygen. The question is, should middle-aged people, in particular, be screened for signs of heart disease before【74】up vigorous exercise?
Most cases of sudden death in sport are caused by l【75】arrhythmias in the beating of the heart, often in people with【76】(diagnose) coronary heart disease. In North America a【77】over 35 is advised to have a physical check-up and even an exercise electrocardiogram. The British, on the whole, think all this testing is unnecessary. Not many people die from exercise,【78】all, and ECGs (心电图) are notoriously inaccurate. However, two medical cardiologists at the Victoria Infirmary in Glasgow, advocate screening by exercise ECG for people over 40, or younger people al【79】at risk of developing coronary heart disease. Individuals【80】(show) a particular abnormality in their ECGs have, they say, a 10 to 20 times greater risk of subsequently developing signs of coronary heart disease, or of sudden death. [br]
选项
答案
so
解析
根据句意,病人心脏降低了所需的氧气量和the patient can do more…应为因果关系。
转载请注明原文地址:https://tihaiku.com/zcyy/3710334.html
相关试题推荐
Itwasrecommendedthatpassengers______smokeduringtheflight.A、notB、neednot
Whatisthemangoingtododuringthesummer?[br][originaltext]W:Whatarey
Inthisexperiment,theyarewakenedseveraltimesduringthenight,andaskedt
Inthisexperiment,theyarewakenedseveraltimesduringthenight,andaskedt
DuringthelectureItriedto______downthemainpoints,buttheprofessorused
Iwasinastudentcoffeebarduringmyfirstweekatuniversitywhenalad
Iwasinastudentcoffeebarduringmyfirstweekatuniversitywhenalad
Iwasinastudentcoffeebarduringmyfirstweekatuniversitywhenalad
Imagineaworldinwhichtherewassuddenlynoemotion—aworldinwhichhuma
Imagineaworldinwhichtherewassuddenlynoemotion—aworldinwhichhuma
随机试题
Writeacommentofabout400wordsonthefollowingquestion..1.
在资本主义国家财政的最主要收入是()。A.税收 B.国有企业收入 C.发行
在Windows系统中,扩展名()表示该文件是批处理文件。A.com B.
证券公司证券投资咨询机构的研究部门或者研究子公司接受特定客户委托,按照协议约定就
从一般意义上讲,( )是为了满足投资者风险与收益目标所做的长期资产的配比。A.行
该患者情感属于A、情感淡漠 B、情感高涨 C、情感低落 D、情感暴发 E
18.请叙述动火工作负责人的安全职责。
下列关于货物运费到付时的开账方法,正确的说法有()。A.货物运费到付情况下,
组织职业生涯年度评审的具体方式一般为()。 A.谈话B.会议C.问卷调查
仅磷酸戊糖途径需要的A、磷酸果糖激酶-2 B、3-磷酸甘油醛脱氢酶 C、丙酮
最新回复
(
0
)