발육,발달학 : 단기간의 70~80%RM Weight Training이 남자고교생의 1RM과 Insuline-Like Growth Factor-I에 미치는 영향 = Effects of Short-term 70-80% RM Weight Training on 1RM and Insuline-Like Growth Factor-I in Male High School Students

다국어 초록 (Multilingual Abstract)

The purpose of this study was to investigate the effects of short term weight training(WT) on 1RM and insulin-like growth factor-Ⅰ(IGF-Ⅰ) in male high school students. Twenty subjects participated in this study from N high school in B metropolitan city. Participants were randomly allocated to experimental group(n=10) and control group(n=10). Experimental group conducted 85～100 minutes of WT which consist of 5 items with 6～8 repetition, 3sets, four days a week, and with 70 to 80% of RM for 12 weeks.

The SPSS version 11.0 was used to analyze data. Gap between two groups was analyzed with t-test, and gap within two groups was identified by using paired t-test.

The results of this study were as follows;

1. The level of blood plasma IGF-I was significantly increased in experimental group after the program, but there was no significant difference between groups.

2. 1RM of squat, shoulder press, leg lunge, bench press, and dead lift were all significantly increased in experimental group after the program, and the experimental group was superior to the control group in whole items.

In conclusion, these results indicate that resistance training leads to favorable changes on 1RM and IGF-Ⅰ in male high school students, however further studies should be performed with different exercise duration and exercise intensity.

참고문헌 (Reference)

1 "중등체육교사 직무연수" 부산광역시 교육청 2002

2 "저항운동의 이해" 도서출판 홍경 2004

3 "저항성 트레이닝 및 디트레이닝 동안의 성장호르몬과 IGF-1의 변화" 43 (43): 473-481, 2004

4 "저항성 운동이 비만 여중생의 혈중지질 성장호르몬 및 인슐린양성인자-I에 미치는 영향" 10 (10): 57-68, 2001

5 "운동부하강도에 따른 중년 후반 남성들의 Growth Hormone, Insuline-like Growth Factor-I 변화" 10 (10): 259-274, 1999

6 "영양지표 로서의 Ⅰ형 인슐린양 성장인자 의 역할" 67-72, 1994

7 "다양한 강도의 저항운동이 testosterone, growth hormone, IGF-1, cortisol 반응에 미치는 영향" 43 (43): 713- 725, 2004

8 "노화와 성장호르몬 치료" 5-9, 1997

9 "노화관련 GH-axis 변화와 운동" 9 (9): 221-238, 1998

10 "규칙적인 무용활동이 아동기 여아의 성장호르몬 및 IGF-I의 분비에 비치는 영향" 736-753, 2001

11 "with special reference to IGFBP-3" 55-62, 1990

12 "growth homone and IGF-I responses to acute and chronic resistive exercise in men aged 55-70 years International Journal of Sports Medicine" 445-450, 1995

13 "changes in EMG and force and serum hormones during strength training in older women" 569-580, 2001

14 "and sympathetic response during prolonged exercide under hypoxia" 266-269, 1987

15 "and potential for abuse" 353-377, 1989

16 "The influence of insulin-like growth factor-I on protein tumover in young and mature animals" 111-118, 1993

17 "The effects of progressive resistance training on bone destiny Medicine and Science in Sports and Exercise" 25-30, 1999

18 "Taxtbook of Medicine Physiology" 1981

19 "Strength training for children and adolescents" 19 : 593-619, 2000

20 "Satellite cell activity is required for hypertrophy of overloaded adult rat muscle" 608-613, 1994

21 "Role of resistance training in heart disease" 30 : -402, 1998

22 "Responses of total and free insulin-like growth factor I and insulin-like-growth factor binding protein-3 after resistance exercise and training on elderly subjects" 51-56, 1999

23 "Response to resistance training in young women and men" 314-321, 1995

24 "Response of IGF-I to endogenous increases in growth hormone after heavy-resistance exercise European Journal of Endocrinology" 1310-1315, 1995

25 "Resistance training for health and disease Medicine and Science in Sports and Exercise" 10-11, 1999

26 "Plasticity of myonuclear number in hypertrophied and atrophied mammalian skeletal muscle fibers" 19951969-1976

27 "Plasticity of myonuclear number in hypertrophied and atrophied mammalian skeletal muscle fibers" 78 : 19951969-1976

28 "PlasmaInsuline-like Growth Factor-I and High Affinity after two weeks of strenuous physical training International Journal of Sports Medicine" Koppeschaar 238-241, 1997

29 "Overnight responses of the circulating IGF-I system after acute" 1319-1326, 2001

30 "Observations on the Soviet/Canadian transpolar ski trek status of secreated hormones and biologically active compounds Medicine of Sports Science" 106-138, 1992

31 "Muscle strength and serum hormone in moddle-aged and elderly man and women" 1993199-207

32 "Low volume circuit versus high volume periodized resistance training in women" 635-643, 2001

33 "Localized infusion of IGF-I results in skeletal muscle hypertrophy in rats" 84 : 1716-1722, 1998

34 "Insulin-like growth factor immunoreactivity increases in muscle after acute eccentric contractions" 410-414, 1993

35 "Infulence of intensive exercise on insuline-like growthfactor1 thyroid and stteroid hormones in female gymnasts" 95-99, 1991

36 "Influence of physical activity on insulin-like growth factor in healthy younger and older men Journal of Clinical Endocrinology and Metabolism" 1468-1473, 1994

37 "IGF-I binding and IGF-I expression in regenerating muscle of normal and hyperphysectomized rats" 79-86, 1992

38 "Hypothalamic - pituitary - adrenal and - gonadal axiss function after exercise in sedentary and endurance trained elderly males European Journal of Applied Physiology" 285-288, 1998

39 "Hormonal responses after various resistance exercise protocols" 644-654, 2003

40 "Exercise-induced changes in circulating growth factors with cyclic variation in plasma estradiol in women Journal of Applied Physiology" 19971946-1951

41 "Exercise and growth hormone; Does one affect the other?," -80, 1997

42 "Essentials of strength training and conditioning" 2000

43 "Endurance training and its effect upon the activity of the GH-IGFs system in the elderly International Joumal of Sports Medicine" 250-254, 1998

44 "Endurance training amplifies the pulsatile release in growth hormone effects of training intensity Journal of Applied Physiology" 2188-2196, 1992

45 "Endocrinology" -07458, 1996

46 "Effet of acute hypoxia on hormonal response to exercise" 587-592, 1997

47 "Effect of brief exercise on circulating insulin-like growth factor I Journal of Applied Physiology" 2490-2496, 1994

48 "Effect of brief exercise on circulating insulin-like growth factor I Journal of Applied Physiology" 2490-2496, 1994

49 "Differential tissue regulation of insulin-like growth factor-1 content and binding proterin after endotoxin" endocri (endocri): 1685-1692, 1994

50 "Acute hormone responses to heavy resistance lower and upper extremity exercise in young versus old men European Journal of Applied Physiology" 882-887, 1998

51 "Acute hormonal responses to two different fatiguing heavy -resistance protocols in male athletes Journal of Applied Physiology" 882-887, 1993

52 "Acute hormonal responses to heavy resistance exercise in younger and older men European Journal of Applied Physiology" 206-211, 1998

53 "Acute and chronic hormonal responses to resistance training designed to promote muscle hypertrophy" 96-107, 1999

54 "Activation of insulin like growth factors gene expression during work induced skeletal muscle growth" (vakofski) : 89-95, 1990

55 "ACSMs guidelines for exercise testing and prescription" Lippincott Williams & Wilkins 2002