운동과 야식섭취가 주관적 식욕수준과 혈중 acylated ghrelin, peptide YY 및 melatonin 농도에 미치는 영향
Effects of exercise and night eating on subjective appetite ratings and circulating acylated ghrelin, peptide YY, and melatonin levels.
Night eating habit is known as a one of the important factors for obesity. Patients with night eating syndrome(NES) showed a phase delay in the timing of meals, and delayed circadian rhythms for melatonin which is a main output signal of the zeitgeber. In contrast, circulating levels of ghrelin, the primary hormone that stimulates food intake, were phase advanced. Thus, patients with NES demonstrated significant changes in the timing of various behavioral and physiological circadian markers involved in appetite and neuroendocrine regulation. In addition to its clear health benefit, physical exercise possibly helps to synchronize the circadian rhythms. However, whether physical exercise affects appetite in night eating is not reported. This study investigated the effects of physical exercise on the subjective appetite ratings and circulating acylated ghrelin and melatonin levels for appetite related hormones in night eating. The subjects divided into four groups according to their exercise and night eating habits. Subjective ratings for hunger, desire to eat, prospective consumption, and fullness were assessed to scale appetite before dinner. Then blood sample collected to determine circulating acylated ghrelin(AG), peptide YY(PYY), and melatonin levels. Physical characteristics were not different between night eating group(NEG) and control group(CON). Exercise group showed lower age, percentage of body fat, and blood glucose level than non-exercise group. Fullness was lower in NEG than CON. AG level was not affected from both factors. PYY level was higher, and melatonin was lower in exercise group than non-exercise group. NEG showed lower fullness that was potentially related to higher appetite than CON before dinner. Although exercise did not affect to subjective appetite ratings and energy intake, it was related higher PYY and lower melatonin levels.
목차
Ⅰ. 서론 1. 연구의 필요성 2. 연구의 목적 Ⅱ. 연구방법 1. 연구대상 2. 실험 절차 3. 생화학적 측정과 방법 4. 자료처리 Ⅲ. 결과 1. 연구대상자의 일반적 특성 2. 에너지 소비량과 섭취량 3. 주관적 식욕수준 4. 혈액성분 Ⅳ. 논의 Ⅴ. 결론 참고문헌 ABSTRACT
현대사회에 있어서 신체활동 연구의 주요 탐구과제는 ‘신체활동을 통한 교육’으로부터 ‘인간의 기본적인 움직임’을 목표로 하는 스포츠적인 움직임을 중심으로 한 생명 활동의 개념으로 급속히 변화되고 있는 추세이다. 이러한 환경변화에 대응하기 위하여 본학회는 ‘체육’적인 요소에서 ‘스포츠’적인 요소를 중심으로 한 학문적 정체성을 견고히 하고, 정기적인 학술지 발간과 학술활동을 통해 한국스포츠츠 문화의 발전과 학문적인 발전에 기여하는데 그 목적이 있다.