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RISS 인기검색어
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- 저자 : 이형국 ( Lee Hyung Kook ) (검색결과 65 건)
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서킷 보디빌딩 운동이 일반 대학생의 체격과 체력요소에 미치는 영향
이형국(Lee Hyung-Kook),신호수(Shin Ho-Su) 한국체육과학회 2003 한국체육과학회지 Vol.12 No.2
This study was an attempt to investigate the effects of 8-weeks circuit body building exercise(bench press, squat, barbell curl, leg extension, pull over, butterfly etc.) on changes of physique factors(weight, skinfold, body fat percentile and body length) and changes of physical fitness factors (left and right grip power, back power) in 28 college men The contents of circuit body building program performed during 8-weeks were as follows. First of all, they choose body building exercise events that were trained with the machine weight apparatus. They measured the personal 1 RM (1 repetition of maximum) respectively, and exercised workout 3 sets of 10-repetitions by 70 % of the 1 RM weight, 90 mins per day, and 3 days a week. Statistical analysis(repeated ANOVA) of the training effects was conducted by the SPSS/windows program for changes from initial, mid, and final term. A probability level of p<0.05 was accepts as the minimum value for statistical differences between groups. The results of the study were revealed that the weight, the physical fitness factors and the body fat factors showed somewhat positive changes but statistically not significant. Exceptionally, the circumferences of arm and forearm changed, they were increased statistically(p<0.05). We knew that 8 weeks circuit body building exercise as a subjects program for general physical education in college was insufficient to obtain training effects, because of the training term was too short to expect the training effects. Therefore, circuit body building exercise programs as cultural studies will be considered longer term exercise form than 8-weeks. And we recommended that circuit body building exercise must be performed habitually and continuously for their health improvement.
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단시간 단속적 최대하 운동시 휴식기 고농도 산소투여가 혈중 전해질 변인에 미치는 영향
이형국(Lee Hyung-Kook) 한국체육과학회 2005 한국체육과학회지 Vol.14 No.1
The purpose of this study is to investigate the effect of "High Density Oxygen Breathing" on blood electrolyte variables(Na?, K?, Cl?, Ca<SUP>2+</SUP>) at recovery during intermittent submaximal exercise on following exercise on 8 healthy male students. The VO₂max and VO₂max 85% was determined through the treadmill running by Bruce protocol. Main test was designed of pretest and post test. On the pretest, 3 min exercise, 1 min recovery, 3 min exercise, 1 min recovery, 3 min exercise, 1 min recovery were performed with VO₂max 85% on treadmill and no oxygen breathing. Post test was performed 3 days later with same procedure with high density oxygen breathing on each 1 min recovery. The blood of 8 subjects was sampled on the 3 times rest state(T2, T4, T6), after 3 times exercise(T1, T3, T5). With the collected blood samples, the concentration of blood electrolyte variables were analyzed by blood as analyzer. There were statistically tested by One-way analysis of variance with repeated measures(p<0.05) within the groups and paired t-test between the groups. The results of the present study were as follows: On blood sodium concentration, there are significant different between the groups at T1(p<.001), T2(p<.001), T4(p<.05), and T6(p<.05). Also there are significant different within the groups(p<.001, T<.05 respectively). On blood potassium concentration, there are at T1(p<.01), T2(p<.01), T3(p<.001), T4(p<.001), and T5(p<.001). Also there are significant different within the no O₂ supplement group(p<.001). On blood chloride concentration, there are at T1(p<.01), T2(p<.05), T3(p<.01), T4(p<.001), and T5(p<.01). Also there are significant different within the groups(p<.001, p<.05 respectively). On blood calcium concentration, there are significant different between the groups at T1(p<.001), T3(p<.001), T4(p<.001), and T5(p<.01). Also there are significant different within the groups(p<.001, p<.05 respectively). In conclusion, on the way to take short time intermittent submaximal exercise, an high density oxygen breathing group in a recess tends to be more stable in the variance of blood electrolyte variables than a group not given oxygen. This result is thought that maybe additional breathing oxygen in a recess has an effect on function of homeostasis of blood electrolyte variables. And henceforth, I expect to make the research of exercise chemistry about it.
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중강도 유산소 운동시 음악듣기 및 영상보기가 에너지 소모량, 심박수, 운동자각도 및 젖산농도 변화에 미치는 영향
이형국(Hyung Kook Lee) 한국발육발달학회 2014 한국발육발달학회지 Vol.22 No.1
Recently, it has become a common practice to listen music and watch images while exercising in gym. We used to choose the favorite equipment for aerobic exercise. The aim of this study was to compare the effects of listening music and watching images on total energy expenditure(tEE) and total heart rate(tHR), total perceived exertion rate(tPER) with Borg`s Scales(6-20), and blood lactate concentration difference(dLA) during moderate aerobic exercise. 14 healthy university male students were divided into 2 groups at random. They have exercised with 2 equip ment(treadmill, bicycle ergo meter) respectively and under 3 experimental conditions(no-music, music, images) repeatedly. Each exercise was performed during 20min with moderate intensity. In case of treadmill, tEE, tHR, tPER, and dLA were not significant difference between 3 conditions. But all of factors showed the highest in the case of no music condition. In case of bicycle ergo meter, there were significant difference on tEE(p<.05) and dLA(p<.05) in the case of listen to music condition. In the case of treadmill, there were unlike the findings of previous studies (Hasan et al, 2008; Brownley, et al 1995; Birnbaum et al., 2009). Inthis study, tEE at no music listening condition was measured the highest. That is because audio or visual stimulator may interrupt to focus performance in treadmill. In order to get listen to music` positive effect, it is good to use the equipment as bicycle ergo meter.
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3 km 군 구보시 착용 신발에 따른 에너지 소비량, 평균심박수, 평균보폭, 운동자각도, 그리고 혈중 젖산 비교
이형국(Hyung-Kook Lee) 한국발육발달학회 2021 한국발육발달학회지 Vol.29 No.1
The purpose of this study was to compare on total energy expenditure(TEE), mean heart rate(MHR), average stride(AS), total rated perceived exertion(TRPE), and lactic-acid(POSTLa) according to taking a military boots or sport shoe during 3km military jogging. 10 male Reserve Officer Training Corps(ROTC) university undergraduate cadets(21±0.5 year. 175±1.8 cm, 68±3.3 kg, 18±2.5 %BF) participated voluntarily on this experiment. They were to engage in a bout of 3km military jogging taking two types of military boots(normal or add sole) and sport shoe, respectively. Exercise physiological variables(,TEE, MHR, AS, POSTLa) and psychological variables (TRPE) data were collected. We analyzed it using oneway repeated measures ANOVA with SPSS/PC ver.24. Statistical significance was defined as p<.05. Significant differences among shoes for average stride(military boots: 100 +/-4.33 cm, military boots add sole: 102 +/- 3.7 cm, sport shoe: 107 +/- 3.2 cm; p<.001) and total RPE(military boots: 14.9 +/-1.10, military boots add sole: 13.7 +/- 1.25, sport shoe: 12.7 +/- 1.06; p<.001) were found, while there was no significant difference on TEE, MHR, and POSTLa among 3 footwear. Though footwear conditions did not affect exercise physiological factors, they did affect only a stride. Further research should be completed to analyze the more exercise physiology factors in order to better efficiency of shoes condition when they are training with a military jogging.
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걷기유형에 따른 심박수 및 에너지소비량 변화에 관한 연구
이형국(Lee hyung-kook) 한국콘텐츠학회 2009 한국콘텐츠학회 종합학술대회 논문집 Vol.7 No.1
There are many types of walking exercise. We have choice the way according to the walking exercise purpose. Nordic walking(NW) is one of walking types with nordic poles. Also, power walking(PW) has motion of large swing the arm in walking, and dumbbell walking(DW) way is walking with 3-pound dumbbell. This study compared the physiological response(heart rate, energy expenditure) of general walking(GW) to another types(nordic, power, and 3-pound hand weights walking way). Seven apparently male health volunteers between the ages 19 and 24 years participated. Each complete a treadmill test. The tests were assigned randomly, as submaximal walking trials on separate days. Each walking trial was conducted on a level treadmill, for 40 minutes(3-5mile/hour 5min warm-up, 6mile/hour speed for 15min walking and 7mile/hour speed for 15min Jogging exercise, and 5-3mile/hour cool down 5min), at an same pace. Heart rate in beats perminute(bpm), and energy expenditure in kcal per minute(㎉/min) were recorded each minute. Results between trials were compared using repeated measures analysis of variance and Tukey's post hoc tests. In slow walking, it was found that walking with 3-pound hand weight way resulted in and average of (127.8±8.27bpm) the highest score HR, Caloric expenditure(85.4±14.51㎉/min), responses compared to regular walking way(1l7.4±7.27 bpm and 70.4±10.99 ㎉/min) Nordic walking way(l21.4±1l.74 bpm, and 77.0±16.83 ㎉/min) is second, power walking way(1l8.5±9.98 bpm, and 68.7 ±20.62 ㎉/min) is next. In fast walking, it was found that walking way with 3-pound hand weight resulted in and average of (160.1±8.72 bpm) the highest score HR, caloric expenditure(126.1±13.86 ㎉/min), responses compared to regular walking way(148.4±1l.94 bpm, and 109.0±4.70 ㎉/min). Nordic walking way(156.7±10.82 bpm, and 113.5±14.51 ㎉/min) is second, power walking way(149.7±12.56 bpm, and 109.2±17.64 ㎉/min) is next. Thus, it is the unavoidable conclusion that, comparing with general walking, 3-pound hand weight walking, nordic walking, and power walking methods have the advantage of high exercise intensity and energy expenditure to meet the purpose of performers without the problem. Furthermore, 3-pound hand weight walking ways were proved to be a useful aerobic exercise method as whole body that achieves high-energy efficiency. To this extent, 3-pound hand weight walking ways can be recommended as a continuous and regulative aerobic exercise for some people.
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