This study investigated friction characteristics in subjects with varying body mass index levels using a selfdeveloped stepping friction test platform.By integrating both static pressure parameters and dynamic measure...This study investigated friction characteristics in subjects with varying body mass index levels using a selfdeveloped stepping friction test platform.By integrating both static pressure parameters and dynamic measurements during walking,significant differences were observed among groups with different body weights.The height of the foot lift was lower,and gait asymmetry was greater in the underweight(UW)group compared to the normal weight(NW)and overweight(OW)groups.Compared to NW individuals,both UW and OW individuals exhibited greater asymmetry in foot load,indicating that those with abnormal weight tended to place more pressure on one foot.At low body weights,subjects exhibited the lowest coefficient of friction required.Upon analysing the contact force and coefficient of friction,it was found that abnormal gait mechanisms varied across different populations.Specifically,individuals with abnormal body weights exhibited greater gait variability and were at increased risk of slipping.The external manifestations of abnormal gait friction across different body weights and their relation to slipping were discussed.Based on a random forest model,an abnormal gait recognition system was developed.The recognition rate of abnormal body weight by this model reached 88.5%.Through this research,the relevant changes in gait under different body weights in the human body provide references for clinical diagnosis,rehabilitation,and sports training while also offering a scientific basis for selecting effective anti-slip measures to reduce injury risk.展开更多
2025年5月,JAMA发表的一篇《Higher BMI Linked with Increased Risk Across Numerous Conditions》文章指出,肥胖是多种不良健康状况的已知危险因素,预计在未来25年,肥胖人数在美国将继续增加。作者指出一项纳入约27600名参与者的研究...2025年5月,JAMA发表的一篇《Higher BMI Linked with Increased Risk Across Numerous Conditions》文章指出,肥胖是多种不良健康状况的已知危险因素,预计在未来25年,肥胖人数在美国将继续增加。作者指出一项纳入约27600名参与者的研究显示,肥胖与所有疾病结局事件的发生风险升高相关,包括慢性肾脏病、高血压和肺栓塞。3级肥胖(BMI≥40 kg/m^(2))与阻塞性睡眠呼吸暂停、2型糖尿病和代谢相关脂肪性肝病的相关性最强,与哮喘、骨关节炎和动脉粥样硬化性心血管疾病相关性最弱,但其风险比仍约为BMI正常人群的2倍。肥胖与减重已成为社会关注的热点问题。我国自2024年起持续推进“体重管理年”3年行动,国家卫健委提出将通过以下措施加强防控:(1)构建支持性社区及社会环境;(2)强化医疗机构健康宣教职能;(3)引导医疗卫生机构设立体重门诊。《中国全科医学》持续关注肥胖与减重的流行病学、临床干预等研究,诚邀学者投稿相关原创成果,共同推动该领域进展。展开更多
文摘This study investigated friction characteristics in subjects with varying body mass index levels using a selfdeveloped stepping friction test platform.By integrating both static pressure parameters and dynamic measurements during walking,significant differences were observed among groups with different body weights.The height of the foot lift was lower,and gait asymmetry was greater in the underweight(UW)group compared to the normal weight(NW)and overweight(OW)groups.Compared to NW individuals,both UW and OW individuals exhibited greater asymmetry in foot load,indicating that those with abnormal weight tended to place more pressure on one foot.At low body weights,subjects exhibited the lowest coefficient of friction required.Upon analysing the contact force and coefficient of friction,it was found that abnormal gait mechanisms varied across different populations.Specifically,individuals with abnormal body weights exhibited greater gait variability and were at increased risk of slipping.The external manifestations of abnormal gait friction across different body weights and their relation to slipping were discussed.Based on a random forest model,an abnormal gait recognition system was developed.The recognition rate of abnormal body weight by this model reached 88.5%.Through this research,the relevant changes in gait under different body weights in the human body provide references for clinical diagnosis,rehabilitation,and sports training while also offering a scientific basis for selecting effective anti-slip measures to reduce injury risk.
文摘2025年5月,JAMA发表的一篇《Higher BMI Linked with Increased Risk Across Numerous Conditions》文章指出,肥胖是多种不良健康状况的已知危险因素,预计在未来25年,肥胖人数在美国将继续增加。作者指出一项纳入约27600名参与者的研究显示,肥胖与所有疾病结局事件的发生风险升高相关,包括慢性肾脏病、高血压和肺栓塞。3级肥胖(BMI≥40 kg/m^(2))与阻塞性睡眠呼吸暂停、2型糖尿病和代谢相关脂肪性肝病的相关性最强,与哮喘、骨关节炎和动脉粥样硬化性心血管疾病相关性最弱,但其风险比仍约为BMI正常人群的2倍。肥胖与减重已成为社会关注的热点问题。我国自2024年起持续推进“体重管理年”3年行动,国家卫健委提出将通过以下措施加强防控:(1)构建支持性社区及社会环境;(2)强化医疗机构健康宣教职能;(3)引导医疗卫生机构设立体重门诊。《中国全科医学》持续关注肥胖与减重的流行病学、临床干预等研究,诚邀学者投稿相关原创成果,共同推动该领域进展。
