Question

帮个忙写一份实验报告，最好是英文的！中文也可以

Investigation on Changes in Body Mass Index Regarding Energy Intake and Consumption. 这是题目，这个是模拟实验！最好原创！但是会用到一个软件，软件看截图

好的话我给220点百度知道的分数！在线等急用！！！！！！！！！

Answer 1

神经病。

Answer 2

你们这是什么啊？？？

我们好像没学过啊

简单吗？？

简单的话 我可以弄弄

Answer 3

Study on body composition is to understand the human body physique, health and aging degree, in order to facilitate the proper implementation of effective methods tocontrol the body weight, body fat and lean body weight proportion of the two parts is suitable, and reduce the incidence of diseases related to obesity rate, enhance physical fitness, health promotion, improve the quality of life. Youth is the transition toadult children, life is the most important period in the growth and development of the human body, is the second peak, physique and the health standard of this period directly influence to the adult physique, intelligence and the ability to work, and with the adult aging, life also has a certain relationship. This study selected Beijing City seventy-one middle school students as the research object, to explore the 12~15 teenager boys and girls, the boys and girls age age 13~15 years old age 12~14 years old, with the body mass index (BMI) were divided into the underweight group, normal group, overweight and obesity group were four different shape, discuss the changecharacteristic of this period male, female four shapes of body composition, factors affecting body composition changes, and the establishment of body compositionassessment formula applicable. Using the method of questionnaire and measurement(body shape, skinfold thickness, bioelectrical impedance analysis and dual energy X-ray absorptiometry), were tested on the same subjects, and by dual energy X-ray absorptiometry measurement method in measuring results as criterion. So as to explore suitable (biological age boys aged 13~15 and 12~14 years old young girl) the use of simple, effective, accurate body fat content and the body fat rate evaluation method and prediction formula. Results: 1 12~15 years old male adolescents, body composition changes slightly different. Male, female body composition is directly proportional to BMI, changes were positively correlated with changes in BMI of themale, female body fat content and muscle mass and bone mineral. 2 with a body mass index (BMI) increased, percentage of body fat body and body fat rate assumes the trend of escalation, the lean and overweight and obesity group between body fat ratehad significant difference (P0.01). Boys and girls, rise and there are differencesbetween different, but the male, female fat distribution accumulation parts of the same. Effects of 3 adolescent body fat rate changes of male and female studentsfactors are different. Body fat rate and life habits of male and female students, dietary behaviors related to nutritional intake and daily physical activity and physical exercisebehavior factors, the boys were drinking more, eat more snacks, fast food, meatincreased frequency with increasing frequency and sitting for long time student body fat rate is high, the girls as water quantity, the staple food to eat pasta, eat eat like wolves and tigers, increased frequency of staple food, meat increased with increasing frequency and sitting for long time student body fat rate. 4 male, female body fat percentage relationship and genetic factors: father's body mass index (BMI) of the male student body mass index (BMI) has a significant impact; on the contrary, theirbody mass index (BMI) of the female body mass index (BMI) had no significant effect.5 BIA measurements of body fat and previous research skinfold thickness calculationformula and DEXA measurements of the rate of good correlation between BIA andDEXA, and measurement of body fat rate, good consistency, but the BIA and previousresearch skinfold thickness formula of teenagers' body fat rate and DEXA measurement of body fat percentage values are some error. Conclusion: in this study,body mass index (BMI) as the basis of the formula is established by using skinfold thickness, body fat rate law derived formula has good reliability and validity, the formula is as follows: the male biological age 13~15 body fat rate of =3.221+0.816 ×+0.936 × abdominal skinfold triceps skinfold -0.691 * Department scapular skinfold girls biological age 12~14 body fat rate = -1.017+0.474 × thigh skinfold +0.533 × triceps skinfold +0.335 * Department of abdominal skinfold +0.254 × calf skinfold