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Role of waist circumference-to-height ratio in assessing adiposity,predicting type 2 diabetes mellitus and other cardiometabolic diseases
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作者 ZHANG Xinyi LU Xi +2 位作者 PAN Xiaohui SHEN Sumin TONG Nanwei 《中南大学学报(医学版)》 CAS CSCD 北大核心 2024年第7期1062-1072,共11页
Although body mass index(BMI)is widely used as a simple tool to assess obesity,it has certain limitations and inaccuracies.It is known that visceral adipose tissue is closely related to cardiometabolic risks and all-c... Although body mass index(BMI)is widely used as a simple tool to assess obesity,it has certain limitations and inaccuracies.It is known that visceral adipose tissue is closely related to cardiometabolic risks and all-cause mortality;however,precise measurement methods for visceral fat(magnetic resonance imaging and computed tomography)cannot be widely used.Thus,simple but accurate alternatives are valuable.Studies have shown that waist circumference-to-height ratio(WHtR)might be a superior and more accurate variable in assessing central or visceral adiposity as well as predicting risks of diabetes and other cardiometabolic diseases.Furthermore,WHtR cutoff values can be consistent across different races,age,and genders,making it a universal metric worth promoting and applying. 展开更多
关键词 waist circumference-to-height ratio body mass index DIABETES cardiometabolic diseases central adiposity
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对战振起标枪技术的生物力学分析
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作者 杨怀英 胡征元 +2 位作者 党立英 刘强 战振起 《山东体育学院学报》 1993年第3期39-44,48,共7页
采用高速摄影的方法,以250幅/秒的频率拍摄了战振起投掷标枪的动作技术影片。经过影片数据处理与结果分析认为:该队员交叉步步长(2.005米)偏大,从交叉步开始至结束躯干倾角变化5.5°,重心腾空较高;此过程重心起伏(25厘米;奥运选手4... 采用高速摄影的方法,以250幅/秒的频率拍摄了战振起投掷标枪的动作技术影片。经过影片数据处理与结果分析认为:该队员交叉步步长(2.005米)偏大,从交叉步开始至结束躯干倾角变化5.5°,重心腾空较高;此过程重心起伏(25厘米;奥运选手4厘米)较大,致使右脚着地冲力大;交叉步的制动影响了与投掷步的衔接,使水平速度损失21.2%,大于亚运选手的18.04%(其中技术较合理的吉田雅美速度下降幅度最小,为13.67%);体重身高指数(390克/厘米)太小,力量不足,出手速度小(20.19米/秒)。这是影响成绩提高的主要因素,其它投掷参数基本合理。 展开更多
关键词 动作技术 交叉步 投掷步 身体倾角 运动学参数 连续动作图 体重/身高指数
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