CAJ | 학술논문

目的探讨年龄与性别在健康人群不同步行速度下对体力活动能量消耗量(AEE)的影响,以及在同一速度下快走与慢跑两种运动方式的AEE特点.方法共选择60名受测者(20～50岁),根据性别分为男、女两组,每组30名,每组再根据年龄分为3个亚组,即20～30岁、31～40岁和41～50岁组,每亚组10人.采用气体代谢仪测量以3.5、4.5、5.5 km/h行走和以5.5、6.5、7.5 km/h跑步的AEE,其结果进行统计学比较.结果同一年龄段,男性与女性在不同速度下的AEE比较,差异均无统计学意义(P＞0.05);各组在不同行走速度下 AEE值组间比较,差异均有统计学意义,其中以4.5 km/h速度行走的31～40岁女性AEE均高于21～30岁女性和男性及41～50岁女性,21～30岁女性AEE低于41～50岁男性(P＜0.05);以7.5 km/h速度慢跑的21～30岁男性AEE高于 41～50岁女性(P＜0.05);以5.5 km/h速度快走与慢跑时,除了41～50岁男性组外,其余各组AEE比较,差异均有统计学意义(P＜0.05).结论随着步行速度的增长,各组AEE均增高,在行走时41～50岁人群AEE较21～30岁人群高,但在跑步时21～30岁人群AEE增长较快,31～40岁女性无论步行还是跑步时AEE均较高;性别对AEE的影响较年龄小;在相同时间、同一速度且无额外负荷的前提下,慢跑比快走消耗的能量更多.
목적 탐토년령여성별재건강인군불동보행속도하대체력활동능량소모량(AEE)적영향,이급재동일속도하쾌주여만포량충운동방식적AEE특점.방법 공선택60명수측자(20～50세),근거성별분위남、녀량조,매조30명,매조재근거년령분위3개아조,즉20～30세、31～40세화41～50세조,매아조10인.채용기체대사의측량이3.5、4.5、5.5 km/h행주화이5.5、6.5、7.5 km/h포보적AEE,기결과진행통계학비교.결과 동일년령단,남성여녀성재불동속도하적AEE비교,차이균무통계학의의(P＞0.05);각조재불동행주속도하 AEE치조간비교,차이균유통계학의의,기중이4.5 km/h속도행주적31～40세녀성AEE균고우21～30세녀성화남성급41～50세녀성,21～30세녀성AEE저우41～50세남성(P＜0.05);이7.5 km/h속도만포적21～30세남성AEE고우 41～50세녀성(P＜0.05);이5.5 km/h속도쾌주여만포시,제료41～50세남성조외,기여각조AEE비교,차이균유통계학의의(P＜0.05).결론 수착보행속도적증장,각조AEE균증고,재행주시41～50세인군AEE교21～30세인군고,단재포보시21～30세인군AEE증장교쾌,31～40세녀성무론보행환시포보시AEE균교고;성별대AEE적영향교년령소;재상동시간、동일속도차무액외부하적전제하,만포비쾌주소모적능량경다.
Objective To measure the activity energy expenditure(AEE) of healthy adults during level walking by using indirect calorimetry,and to analyze the characteristics and underlying influencing factors such as age and gender. Methods A total of 60 healthy adults aged 20-50 years (30 males and 30 femdes) participated in the study.All the subjects were divided into six groups by gender and age (the age span of each group was 10 years). The subjects were arranged to walk at speeds of 3.5,4.5,5.5km/h and run at 5.5,6.5,7.5km/h, respectively, on the treadmill. The resting energy expenditure ( REE ) and AEE were measured during walking and running at different speeds.There was a 5-minute rest among the test sessions. Results No difference in terms of AEE between the female and male at the same age ( P ＞ 0. 05 ). During 3.5km/h walking,AEE of 21-30 year-old females was lower than 31-40 yearold females and males( P ＜0.05 ) ;During 4.5km/h walking,AEE of 31-40 year-old females was higher than 21-30 yearold females and males and 41-50 year-old females; AEE of 21-30 year-old females was lower than 41-50 year-old males (P ＜ 0.05 ) ;During 5.5km/h walking,AEE of 31-40 year-old females was higher than 21-30 year-old females and males ( P ＜ 0. 05 ). During 6.5 km/h running, AEE of 31-40 year-old females was higher than 41-50 year-old females ( P ＜0.05), while during 7.5km/h running, AEE of 21-30 year-old males was higher than 41-50 year-old females (P ＜0.05 ). It was also found that the AEE of all groups except the 41-50 year-old females group was higher when walking at the speed of 5.5km/h than running at the same speed( P ＜ 0.05 ). Conclusions Age has more effect on REE and AEE than the gender. AEE of elder subjects is higher than that of the younger ones during walking, however, AEE of younger people increases faster than the elders during running. AEE of 31-40 year-old females is the highest in all groups both in walking and running. AEE in running is higher than in walking at the same speed.