首页
外语
计算机
考研
公务员
职业资格
财经
工程
司法
医学
专升本
自考
实用职业技能
登录
外语
Looking for a new weight loss plan? Try living on top of a mountain. Mountain air contains less oxygen than air at lower altitud
Looking for a new weight loss plan? Try living on top of a mountain. Mountain air contains less oxygen than air at lower altitud
admin
2017-06-27
39
问题
Looking for a new weight loss plan? Try living on top of a mountain. Mountain air contains less oxygen than air at lower altitudes, so breathing it causes the heart to beat faster and the body to burn more energy. A handful of studies have found that athletes training at high altitudes tend to lose weight. Doctor Florian Lippl of the University Hospital of Ludwig-Maximilians-University Munich wondered how the mountain air would affect overweight individuals if they weren’t doing any more physical activity than usual.
Lippl and his colleagues invited 20 overweight men to an environmental research station about 300 meters below the summit of Zugspitze, a mountain around 2,970 meters near the Austrian border. They were allowed to eat as much as they liked. The men also gave blood so that researchers could test for hormones (荷尔蒙) linked to appetite and fatness. At the end of the week, the men, whose mean weight starting out was 105 kg, had lost on average about 1.5 kg. The men’s blood pressure also dropped, which the researchers attributed to weight lost.
Exactly what caused the weight loss is uncertain. Loss of appetite is common at higher altitudes, and indeed the men ate significantly less than usual-about 700 calories fewer per day. Lippl also notes that because their consumption was being recorded, they may have been more self-conscious about what they ate. Regardless, eating less accounts for just 1 kg of the 1.5 kg lost, says Lippl. He thinks the increased metabolic (新陈代谢的) rate, which was measured, also contributed to weight loss but cannot separate the different effects with the given data.
Appetite loss at high altitudes could certainly be key, notes Damian Bailey, a physiologist at the University of Glamorgan, UK, who recently lost 11 kg during a 3-month expedition to the Andes in Chile.
Unfortunately, for the average person there’s no treatment that can resemble living at high altitude, says Lippl. The only alternative is a hypobaric chamber, which exposes subjects to low oxygen and isn’t practical as a therapy. He says, half-jokingly, "if fat people plan their holidays, they might not go to the sea, but maybe to the mountains."
What contributes the most to one’s heart rates, according to the first paragraph?
选项
A、Our bodyweight.
B、The consumption of energy.
C、The rates of our breathing.
D、The amount of oxygen provided.
答案
D
解析
该句中由so连接的因果关系句表明,山上的空气含氧量低导致心跳更快,由此可见,本题应选D。
转载请注明原文地址:https://kaotiyun.com/show/Hii7777K
0
大学英语四级
相关试题推荐
A、Shehasacomputerrelatedmajor.B、Shecanmendcomputers.C、Sheisgoodatlanguage.D、Sheisacollegestudentnow.A
Theappealofadvertisingtobuyingmotivescanhaveboth【B1】______andpositiveeffects.Consumersmaybe【B2】______tobuyapr
Ifyouareayoungcollegestudent,mostofyour【B1】______aboutyourhealthandhappinessinlifeareprobably【B2】______thepr
InAmericatherearenumeroustypesofdoctors,fromgeneralpractitioners(从业者)tospecialists.MostpeopleintheU.S.havea"p
TheLibraryofCongressisAmerica’snationallibrary.Ithasmillionsofbooksandotherobjects.Ithasnewspapers,popularpu
Corporationsasagroupofferavarietyofjobs.Mostlargecompaniessendpeopletocollegesto【B1】______graduatingstudentsw
Youngpeoplelegallybecomeadultsattheageof18.Theycan【B1】______andsigncontracts.Butadulthoodismorethanalegal【B
A、Henrydoesn’tlikethecolor.B、Someoneelsepaintedthehouse.C、Therewasnoladderinthehouse.D、Henrypaintedthehouse
Somepessimisticexpertsfeelthattheautomobileisboundtofallintodisuse.Theyseeadayinthenot-too-distantfuturewhe
A、Todobusinesseffectively.B、Tomeetothers’requirement.C、Toimprovelinguisticskills.D、TopromoteproficiencyinEnglish
随机试题
A.氯化钠注射液B.葡萄糖注射液C.右旋糖酐注射液D.氧氟沙星葡萄糖输液E.青霉素粉针电解质输液为()。
NaturallanguageinterfacesenabletheusertocommunicatewiththecomputerinFrench.English,German,orahumanlanguage.So
女性,30岁。进行性呼吸困难2个月,X线胸片示两肺弥漫性间质病变。血气分析:pH7.46,PaO252mmHg,PaCO230mmHg,BE-3.0mmol/L。适宜的吸氧浓度为
某孕妇,27岁。G1P0,40周妊娠,临产12小时。查体:LOA,骨盆测量径线正常,宫缩持续时间1分钟,间歇1~2分钟,宫缩间歇胎头缩回阴道,胎心150次/分,胎膜己破,宫口开大10cm,先露+2。该时期护士应实施的首要护理措施是
治疗子宫内膜异位症气滞血瘀证,应首选的方剂是
授信集中可以集中于()。
某工业企业(增值税一般纳税人)主要生产销售各种型号发电机组。2012年9月的有关资料如下:(1)本月发出7月份以预收货款方式销售给某机电设备销售公司的发电机组3台,每台不含税售价30000元。另向购买方收取装卸费3510元。(2)企业采取分期收款方式销
以()为依据,可以将艺术分为时间艺术(音乐、文学等)、空间艺术(绘画、雕塑等)和时空艺术(戏剧、影视等)。
AskanIcelanderwhoheis,hemaywelltellyouwithastraightfacethatheisthesonofaViking."ButtheVikingarelong
下列表述错误的一项是()。
最新回复
(
0
)