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
Fifty volunteers were alphabetically divided into two equal groups. Group A to participate in a 7-week exercise program, and Gro
Fifty volunteers were alphabetically divided into two equal groups. Group A to participate in a 7-week exercise program, and Gro
admin
2010-06-30
27
问题
Fifty volunteers were alphabetically divided into two equal groups. Group A to participate in a 7-week exercise program, and Group B to avoid deliberate exercise of any sort during those 7 weeks. On the day before the exercise program began, all 50 men participated in a step-test. This consisted of stepping up and down on a 16-inch bench at 30 steps a minute for 5 minutes. One minute after completion of the step-test, a pulse rate of each subject was taken and recorded. This served as the pretest for the experiment. For the next 7 weeks, subjects in the experimental group (Group A) rode an exercycle for 15 minutes each day. The exercise schedule called for riders to ride relaxed during the first day’s ride, merely holding on to the handle bars and foot pedals as the machine moved. Then, for the next 3 days, they rode relaxed for 50 seconds of each minute, and pushed, pulled, and pedaled actively for 10 seconds of each minute. The ration of active riding was increased every few days, so that by the third week it was haft of each minute, and by the seventh week the riders were performing 15 solid minutes of active riding.
At the end of the 7 weeks, the step-test was again given to both groups of subjects, and their pulses taken. The post exercise pulse rates of subjects in the experimental group were found to have decreased an average of 30 heart beats per minute, with the lowest decrease of 28 and the highest decrease of 46. The pulse rates of subjects in the control group (Group B) remained the same or changed no more than 4 beats, with an average difference between the initial and final tests of zero.
What did Group A do in their program?
选项
A、They stepped up and down on a bench every day.
B、The didn’t do any exercise.
C、They rode on an exercycle every day.
D、They pushed handle bars every day.
答案
C
解析
由文章第一段第七句For the next 7 weeks, subjects in the experimental group (Group A) rode an exercycle for 15 minutes each day可知。
转载请注明原文地址:https://kaotiyun.com/show/BlJd777K
本试题收录于:
公共英语四级笔试题库公共英语(PETS)分类
0
公共英语四级笔试
公共英语(PETS)
相关试题推荐
Walking—likeswimming,Bicyclingandrunning—isanaerobicexercise,【C1】______buildsthecapacityforenergyoutputandphysical
Themostobviouspurposeofadvertisingistoinformtheconsumerofavailableproductsorservices.Thesecond【C1】______isto
A、Showingthefaultitemtothemanager.B、Explainingexactlywhatiswrongwiththeitem.C、Sayingfirmlythattheitemisofp
Formanyuniversitystudentstherearetwoalternatives:oneistofindajob,theotheristopursuefurtherstudy.Bothhavea
Whatarethespeakersdoing?
Dr.WilsonandMr.Wanghaveknowneachotherbefore.
OnepertinentquestioninthewakeoftheearthquakenearAcehandthetsunamiitgeneratedishowmuchnoticeofanapproaching
OnepertinentquestioninthewakeoftheearthquakenearAcehandthetsunamiitgeneratedishowmuchnoticeofanapproaching
OnepertinentquestioninthewakeoftheearthquakenearAcehandthetsunamiitgeneratedishowmuchnoticeofanapproaching
Somedoctorsaretakinganunusualnewapproachtocommunicatebetterwithpatients—theyareletting【C1】______readthenotestha
随机试题
行为科学最基本的理论核心是()
观察法
决定膀胱癌预后的是
通过横突孔的结构是
药物在体内的转化和排泄统称为
某患者,男性,57岁,因急性下壁心肌梗死入院。检查BP90/60mmHg,P42次/分,律齐,最可能的心律失常是()
2015年3月国务院《深化标准化工作改革方案》中规定,政府主导制定的标准由6类整合精简为4类,其中包括()。
中国已成为世界第二大经济体,人们的物质生活得到了极大的改善,是否因此就可以认为“提倡艰苦朴素”这一口号已经过时了?我们今天还要不要发挥艰苦奋斗的光荣传统呢?________。填入画横线部分最恰当的一句是:
洗钱罪的行为方式主要有 ( )。
Thirtyyearsago,anyoneblaminglonelinessforphysicalillnesswouldhavebeenlaughedat.Butasscientistsstudieddifferent
最新回复
(
0
)