The fitness movement that began in the late 1960s and early 1970s centered around aerobic exercise (有氧操). Millions of individual

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问题     The fitness movement that began in the late 1960s and early 1970s centered around aerobic exercise (有氧操). Millions of individuals became engaged in a variety of aerobic activities , and literally thousands of health spas developed around the country to capitalize (获利) on this emerging interest in fitness, particularly aerobic dancing for females. A number of fitness spas existed prior to this aerobic fitness movement, even a national chain with spas in most major cities. However, their focus was not on aerobics, but rather on weight-training programs designed to develop muscular mass strength and endurance in their primarily male enthusiasts. These fitness spas did not seem to benefit financially from the aerobic fitness movement to better health, since medical opinion suggested that weight-training programs offered few if any health benefits. In recent years, however, weight training has again become increasingly popular for males and for females. Many current programs focus not only on developing muscular strength and endurance but on aerobic fitness as well.
    Historically, most physical-fitness tests have usually included measures of muscular strength and endurance not for health-related reasons but primarily because such fitness components have been related to performance in athletics. However, in recent years evidence has shown that training programs designed primarily to improve muscular strength and endurance might also offer some health benefits as well. The American College of Sports Medicine now recommends that weight training be part of a total fitness program for healthy Americans. Increased participation in such training is one of the specific physical activity and fitness objectives of Healthy People 2000 National Health Promotion and Disease Prevention Objectives.
Early fitness spas were intended mainly for______.

选项 A、the promotion of aerobic exercise
B、endurance and muscular development
C、the improvement of women’s figures
D、better performance in aerobic dancing

答案B

解析 细节题。根据关键词early fitness spas定位句子A number of fitness spas existed prior to this aerobic fitness movement(有氧健身运动之前就有很多的健身场所了),进而得知他们的活动重点不在于有氧运动(their focus was not on aerobics),而在于(but rather on)为男性锻炼肌肉、力量和耐力而设的负重运动(weight—training programs develop muscular mass,strength and endurance in their primarily male enthusiasts)。选项B.endurance and muscular development耐力和肌肉锻炼可以替换。
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