华为和乐心运动手环测量直线和变向跑能量消耗的信效度

Reliability and Validity of Energy Expenditure Measurement of Honor and Lifesense Activity Wristbands during Running with and without Change of Directions

探究国内两款常用运动手环测量直线和变向跑EE的信效度.通过18名某体育学院男性健康大学生((22.4±2.5)岁,(177.1±7.2)cm,(69.3±8.4)kg)自愿参加两轮四级递增直线跑(跑台,8、10、12和14 km·h^(-1))和场地变向跑(20 m往返跑,6、8、10和12 km)测试.信度方面,华为测量直线和变向跑EE的信度高(直线:r=0.91、0.93、0.99、0.97,变向:r=0.82、0.88、0.94、0.97,p<0.05),乐心测量直线和变向跑EE的信度中等(直线:r=0.51、0.64、0.76、0.68,变向:r=0.40、0.42、0.56、0.63,除变向6 km·h^(-1)外,p均小于0.05);两款运动手环测量直线和变向跑EE的信度均随跑速增加而升高;两款运动手环测量直线跑EE的信度高于变向跑.效度方面,两款运动手环测量直线和变向跑EE的效度低(华为直线:平均绝对误差比MAPE=33.1、13.6、3.6、1.1%;华为变向:MAPE=1.1、22.2、2.3、5.4%;乐心直线:MAPE=38.7、17.5、2.3、4.8%;乐心变向:MAPE=1.7、13.9、7.5、8.9%);华为测量直线和变向跑EE的效度高于乐心;两款运动手环测量直线跑和变向跑EE的效度在特定速度下更高.两款运动手环测量直线和变向跑EE的信度中到高等,效度低;两款运动手环EE测量的信效度受品牌、价格、跑动速度和运动方式影响.使用者和厂家应认识到两款运动手环EE测量准确性上的局限性.

This study aims to evaluate the reliability and validity of EE measurement of the two commonly used activity wristbands(Honor and Lifesense)in China during running with and without change of directions.Method:18 male health collegiate students((22.4±2.5)yrs,(177±7)cm,(69.3±8.4)kg)volunteered to participate in two rounds of four-stage increasing straight running(treadmill,8,10,12 and 14km/h)and field running with change of directions(20 m shuttle run,6,8,10 and 12 km·h^(-1))tests.The test of each stage lasts 5mins and 1-minute interval between stages.In terms of reliability,the reliability of EE measurement of Honor during running with and without change of directions was good(straight line:r=0.91,0.93,0.99,0.97,with change of directions:r=0.82,0.88,0.94,0.97,p<0.05),the reliability of EE measurement of Lifesense was medium(straight line:=0.51,0.64,0.76,0.68;with change of directions:r=0.40,0.42,0.56,0.63;p<0.05 except running with change of directions at 6 km·h^(-1)).The reliability of EE measurement of the two activity wristbands increased with speed both in running with and without change of directions.The reliability of EE measurement of the two activity wristbands during running without change of directions was higher than that with change of directions.In terms of validity,the validity of EE measurement of both Honor and Lifesense was low(Honor in straight line:MAPE=33.1,13.6,3.6,1.1%;Honor in change of directions:MAPE=1.1,22.2,2.3,5.4%;Lifesense in straight line:MAPE=38.7,17.5,2.3,4.8%;Lifesense in change of directions:MAPE=1.7,13.9,7.5,8.9%).The validity of EE measurement by Honor was better than that of Lifesense.The validity of EE measurement of two activity wristbands were better at a given speed.The reliability of EE measurement of the two activity wristbands during running with and without change of directions is from medium to high,while the validity is low.And brand,price,speed and movement mode do have effects on both reliability and validity of two activity wristbands.The users and manufacturers should realize the limitations of these two activity wristbands about their EE measurement of accuracy/validity.