장기간의 트레드밀 운동이 식이 선택 및 과산화지질 생성에 미치는 영향 = The effects of long-term treadmill exercise on macronutrient self-selection(MNSS) and malondialdehyde(MDA)

국문 초록 (Abstract)

장기간의 유산소 운동이 쥐의 식이선택에 미치는 영향을 규명하기 위하여 40마리의 쥐(Sprage-Dawley)를 대조군(0주군), 4주군, 8주군 그리고 12주군으로 나누어 각각 10마리씩 할당하였다. 할당된 쥐들은 12주간의 트레드밀 운동을 실시하여 4주마다 탄수화물, 단백질, 지방 섭취량 분석하였으며, 그 결과를 요약하면 다음과 같다.
1. 장기간의 유산소 운동은 트레이닝 전에 비하여 탄수화물 섭취량을 증가시키고, 지방 섭취량을 감소시키는데 이것은 지구성 운동으로 인한 효소의 적응현상으로 생각되며, 탄수화물 섭취량의 증가는 운동으로 인해 고갈된 탄수화물의 재보충을 위한 결과로 생각된다.
2. 장기간의 유산소 운동을 통하여 트레이닝 전에 비하여 과산화지진 생성의 증가가 나타났다. 이것은 트레이닝으로 인한 항산화 효소의 활성도가 증가하여 나타난 결과로 생각된다.

다국어 초록 (Multilingual Abstract)

The purpose of this study is to determine the effects of the aerobic exercise on macronutrient self-selection. Male Sprague-Dawley rats were placed on a macronutrient self-selection diet for 12 weeks. For this purpose mixed feeds were prescribed for the rats, while they were forced to run for 12 weeks.
1. The long-term aerobic exercise took the carbohydrate most while the pre-training(0 week) took fat most. The decrease of fat intake by the running exercise group suggests the possibility that the in-body enzymes should adapt themselves to the changing in-body condition caused by the endurance exercise. In contrast, it is conceived that more intake of the carbohydrate may be attributable to the need of supplementing the nutrient lost by the endurance exercise.
2. The long-term aerobic exercise 12 weeks associated with significantly changed concentrations of MDA. If so, the increased endurance in trained male should reflect lengthening of the time required for the oxidative processes to training intensity.
As discussed above, the endurance exercise group took carbohydrate and protein and less fat than control group. In particular, it was found that the amount of feed intakes was affected much by types, intensity and duration of the exercises. Future studies may consider age, sex, muscle fiber type, physical fitness level and training intensity.