CAJ | 학술논문

目的：研究相同递增负荷功率不同运动方式下,机体能量代谢及底物消耗的特征及差异。方法：利用相同的递增负荷方案对11名在校女大学生进行递增负荷至力竭的跑台及自行车运动,采用气体收集法测定能量代谢结果。结果：在相同递增负荷功率的自行车和跑台运动中：1）随着负荷的递增,糖消耗供能及供能百分比逐渐增大,脂肪消耗量及供能逐渐减少;脂肪消耗量在自行车50 W（37.7%±7.4%VO2max、58.3%±6.60%HRmax）、跑台75 W,即5.1km/h以及12.3%坡度（55.61%±10.55%VO2max、69.62%±5.46%HRmax）时最大,分别为4.77±1.27 mg/min/kg、6.51±2.57 mg/min/kg,对应负荷强度及最大消耗值具有显著性差异（P〈0.001）。2）跑台运动总时间、VO2max值及力竭负荷强度均高于自行车运动（P〈0.05）;在其他相同负荷强度时,跑台运动的脂肪消耗量及供能比例高于自行车运动（P〈0.05）。3）同级负荷时跑台运动的总能量输出高于自行车运动,随着运动负荷递增,脂肪供能下降水平及下降时机有明显差异。结论：在相同递增负荷功率不同运动方式至力竭运动中：1）不同运动方式下机体能量代谢特征及变化与负荷的递增、能量输出需求是一致的;2）尽管是相同的增负荷功率,但跑台运动中脂肪消耗及供能比例相对较大,具有持续、较强的脂肪消耗能力,而在各个负荷阶段的糖消耗水平基本一致;3）相同受试者采用不同运动方式健身时,其健身负荷强度具有一定的差异。
목적：연구상동체증부하공솔불동운동방식하,궤체능량대사급저물소모적특정급차이。방법：이용상동적체증부하방안대11명재교녀대학생진행체증부하지력갈적포태급자행차운동,채용기체수집법측정능량대사결과。결과：재상동체증부하공솔적자행차화포태운동중：1）수착부하적체증,당소모공능급공능백분비축점증대,지방소모량급공능축점감소;지방소모량재자행차50 W（37.7%±7.4%VO2max、58.3%±6.60%HRmax）、포태75 W,즉5.1km/h이급12.3%파도（55.61%±10.55%VO2max、69.62%±5.46%HRmax）시최대,분별위4.77±1.27 mg/min/kg、6.51±2.57 mg/min/kg,대응부하강도급최대소모치구유현저성차이（P〈0.001）。2）포태운동총시간、VO2max치급력갈부하강도균고우자행차운동（P〈0.05）;재기타상동부하강도시,포태운동적지방소모량급공능비례고우자행차운동（P〈0.05）。3）동급부하시포태운동적총능량수출고우자행차운동,수착운동부하체증,지방공능하강수평급하강시궤유명현차이。결론：재상동체증부하공솔불동운동방식지력갈운동중：1）불동운동방식하궤체능량대사특정급변화여부하적체증、능량수출수구시일치적;2）진관시상동적증부하공솔,단포태운동중지방소모급공능비례상대교대,구유지속、교강적지방소모능력,이재각개부하계단적당소모수평기본일치;3）상동수시자채용불동운동방식건신시,기건신부하강도구유일정적차이。
Objective： The characteristics and differences of body energy metabolism and substrate consumption in different forms of exercise with the same incremental load power will be studied in the research. Method： According to the same incremental load power program, 11 female college students are tested as subjects in incremental load to exhaustive exercise in forms of treadmill and cycling exercise with the use of gas collection method to identify the results of energy metabolism. Results：In treadmill and cycling exercise with the same incremental load power, 1 ）With the load increment, CHO consumption, energy supply and energy supply per- centage are gradually increasing , while fat consumption and the percentage of fat consumption for energy supply phase down;fat consumption reaches a maximum, 4. 77± 1.27 rng/min/kg in the cycling exercise with the load of 50w（37.7%±7.4% VO2 max,58.3%±6.60%HR- max） or 6.51 ± 2.57 mg/min/kg in the treadmill exercise with the load of 75w, namely, at the speed of 5.1km/h and the slope of 12. 3% （55. 61% ± 10. 55% VO2max, 69. 62% ± 5.46% HR max ） and there are significant differences in the corresponding load intensity and maximum consumption figure between the two forms of exercise （P〈0. 001）;2）The total time, VO2 max value and exhaustive load intensity in the treadmill exercise are longer or bigger than those in the cycling exercise （P〈0.05） ;on other occasions with the same load intensity, FAT consumption and energy supply percentage in the treadmill exercise are higher than those in the cycling exercise（P〈0.05） ;3）With the same load intensity the total energy output in the treadmill exercise is larger than that in the cycling exercise, meanwhile, significant differences are showed in terms of the decline level and decline time of FAT energy supply as load power is increasing. Conclusion：In different forms of exercise to exhaustive exercise with the same incremental load power, 1）the characteristics and changes of body energy metabolism in different forms of exercise are in line with load increment and the demand for energy output; 2） despite the same incremental load power, FAT consumption and energy supply percentage in the treadmill exercise are larger, which contributes more to fat-reducing and stronger FAT oxidizing ability and better reflects the body＇s aerobic capacity; 3）the same subject selects different fitness load intensity in different exercise.