• 생명과학회지
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• 제17권6호통권86호
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• pp.867-872
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• 2007

The aging is related to numerous changes in our body system which declines functional ability. The functional ability in advanced age can be evaluated by the 4 components of fitness (cardiorespiratory endurance, muscular strength and endurance, flexibility and body composition). The understanding and knowledge of changing 4 components of fitness and the role of exercise on the process of aging is of paramount importance. Despite exercise and physical activity have been shown to delay the process of aging, the exercise guidelines and recommendations for old adults are not well published. This review is to presents the age-related changes in each component of fitness and to present current guidelines and recommendations for exercise in older adults.

• 한국콘텐츠학회논문지
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• 제9권10호
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• pp.427-435
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• 2009

본 연구는 일반 성인 남성을 대상으로 걷기운동이 근기능의 변화에 어떤 영향을 미치는지 알아보기 주4회 8주간 속보 트레이닝 참여에 따른 하지근력의 최대 힘효율과 평균 파워의 변화를 살펴보았다. 그 결과 다음과 같은 결론을 얻었다. 첫째, $60^{\circ}/sec$의 최대 힘효율, 평균파워는 신근과 굴근에서 유의한 상호작용이 나타났으며, 8주 전후 트레이닝은 최대 힘효율, 평균파워는 증가하였다. 둘째, $120^{\circ}/sec$의 최대 힘효율, 평균파워는 신근과 굴근에서 유의한 상호작용이 나타났으며, 8주 전후 트레이닝은 최대 힘효율, 평균파워는 증가하였다. 셋째, $180^{\circ}/sec$의 최대 힘효율, 평균파워는 신근과 굴근에서 유의한 상호작용이 나타났으며, 8주 전후 트레이닝은 최대 힘효율, 평균파워는 증가하였다. 결론적으로 걷기 운동은 등속성 근기능의 굴근과 신근의 개선에 긍정적으로 작용하였다. 본 연구자는 차후 연구에서는 다양한 부하와 계획을 등속성 근기능의 평가가 필요하리라 사료된다.

• 한국전문물리치료학회지
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• 제29권2호
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• pp.156-164
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• 2022

Background: Low back pain (LBP) is a representative disease, and LBP is characterized by muscle dysfunction that provides stability to the lumbar spine. This causes physical functional problems such as decreased posture control ability by reducing the muscular endurance and balance of the lumbar spine. Pelvic compression using instruments, which has been used during recent stabilization exercises, focuses on the anterior superior iliac spine of the pelvis and puts pressure on the sacroiliac joint during exercise, making the pelvis more symmetrical and stable. Currently, research has been actively conducted on the use of pelvic compression belts and non-elastic pelvic belts; however, few studies have conducted research on the application effect of pelvic compression using instruments. Objects: This study aimed to investigate whether there is a difference in trunk muscular endurance and dynamic and static balance ability levels by applying pelvic stabilization through a pelvic compression device between the LBP group and the non-LBP group. Methods: Thirty-nine subjects currently enrolled in Daejeon University were divided into 20 subjects with LBP group and 19 subjects without LBP (NLBP group), and the groups were compared with and without pelvic compression. The trunk muscular endurance test was performed with 4 movements, the dynamic balance test was performed using a Y-balance test, and the static balance test was performed using a Wii balance board. Results: There was a significant difference the LBP group and the NLBP group after pelvic compression was applied to all tests (p < 0.05). In the static and dynamic balance ability test after pelvic compression was applied, there was a significant difference in the LBP group than in the NLBP group (p < 0.05). Conclusion: These results show that pelvic compression using instruments has a positive effect on both those with and without LBP and that it has a greater impact on balance ability when applied to those with LBP.

• 한국산학기술학회논문지
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• 제13권8호
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• pp.3405-3416
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• 2012

음악줄넘기가 남중생의 건강체력, 혈중지질 및 성장관련인자에 미치는 영향을 구명하기 위하여 G시에 거주하는 남자 중학생 20명을 대상으로 실시하였다. 운동프로그램은 12주간, 주 4회, 1일 45분, 1주기(1-6주)는 RPE 11-12(저강도), 2주기(6-12주)는 RPE 13-15로 실시하여 비교 분석한 결과 다음과 같은 결론을 얻었다. 첫째, 건강체력에서 각 집단 내의 음악줄넘기 실시 전 후의 변화에서 운동군은 제지방량, 근력, 근지구력, 심폐지구력, 유연성에서 유의하게 증가하였으나, 체지방률은 유의하게 감소하였다. 대조군은 근력, 근지구력, 심폐지구력에서 유의하게 증가하였으며, 각 집단 간의 변화량에 대한 차이검정에서는 제지방량, 체지방률, 근력, 유연성에서 유의한 차이가 나타났다. 둘째, 혈중지질에서 각 집단 내의 전 후의 변화에서 운동군은 HDL-C에서 유의하게 증가하였으나, 대조군은 TG에서 유의하게 감소하였으며, HDL-C는 유의하게 증가하였고, 각 집단 간의 변화량에 대한 차이검정에서는 모두 유의한 차이가 나타나지 않았다. 셋째, 성장관련인자에서 각 집단 내의 전 후의 변화에서 운동군은 성장호르몬, IGF-I에서 유의하게 증가하였다. 대조군은 IGF-I에서 유의하게 감소하였고, 각 집단 간의 변화량에 대한 차이검정에서는 IGF-I에서 유의한 차이가 나타났다. 이상의 연구결과에서 남자 중학생에게 음악줄넘기가 제지방량, 근력, 유연성, 성장호르몬, IGF-I에 긍정적인 효과가 있는 것으로 나타났다.

• 대한물리의학회지
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• 제16권1호
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• pp.103-109
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• 2021

PURPOSE: This study examined the effects of the Visual Analog Scale (VAS) and knee function index on the knee strength and endurance in the national male field-hockey athletes. METHODS: Twenty-four male field-hockey athletes with a painful knee who trained at the national training center in 2019 were enrolled. The VAS and knee function index questionnaire were used to evaluate the degree of pain and functional state of the knee. The muscle strength and endurance of the knee were measured by Biodex (System 4, USA). The Pearson product moment correlation was performed to examine the effects of the VAS and knee function index the of knee on the strength and endurance. In addition, the VAS and knee function index and muscle strength and muscle endurance were examined to determine the relationship using Simple Linear Regression. The statistical significance level was α=.05. RESULTS: An analysis of the correlation between VAS and knee function index and muscle strength and muscle endurance revealed the VAS and knee function index to be statistically significant (r = .700). In addition, the extensor muscle strength, knee VAS (r = -.457), and knee function index (r = -.414) were also statistically significant. A 1-point increase in the VAS and knee function index was associated with an approximately 9.881 and 1.006 extensor muscle strength. CONCLUSION: The VAS and knee function index of field-hockey athletes are related to the strength of the knee extensors. Therefore, field-hockey athletes should develop a program to strengthen the extensor muscle strength of the knee.

• The Journal of Advanced Prosthodontics
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• 제5권4호
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• pp.388-395
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• 2013

PURPOSE. The purpose of this study was to estimate the effects of occlusal stability to identify action mechanisms of mouthguards, known to have a modulatory effect on limb muscle function. MATERIALS AND METHODS. This study included 20 male subjects to perform the isokinetic muscle tests and the Wingate anaerobic power test on both knee joints under five closed-mouth conditions: without or with 4 types of mouthguards with thickness of 2 mm based on premolar area: (1) full-coverage, (2) anterior partial-coverage, (3) right posterior partial-coverage, and (4) left posterior partial-coverage. The obtained results were subjected to One-way ANOVA with repeated measures, followed by post hoc test of the contrast method (${\alpha}$=.05). RESULTS. There was no significant difference between the closed position with and without a full-coverage mouthguard in all variables. However, significant differences were observed between with and without a partial-coverage mouthguard in muscular endurance during extension of the left knee, muscular power and endurance during flexion of the right knee. Additionally, significant differences were found between occlusal states with full- and partial-coverage mouthguards in muscular power and endurance during extension of the left knee. CONCLUSION. These findings indicate the elevation of vertical dimension by 2 mm or the inducement of occlusal stability had little effect on isokinetic muscle strength and anaerobic performance, while uneven distribution of occlusal force might have some positive effects.

• 한국교육논총
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• 제41권2호
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• pp.1-23
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• 2020

본 연구의 목적은 고등학생의 체력요인인 심폐지구력과 근력·근지구력, 순발력 그리고 체지방지수가 학업성취도인 국어와 영어 그리고 수학성취도에 어떤 관계가 있는지를 알아보는 것이다. 연구방법은 2014년과 2017년 전국 고등학교 641명의 남·여학생을 대상으로 심폐지구력과 유연성, 근력·근지구력, 순발력 그리고 체지방지수를 이용하였다. 본 연구의 결과로 2014년도에서는 20m왕복오래달리기와 국어, 수학성취도가 음의 상관관계(p<0.01), 앉아윗몸앞으로굽히기가 영어성취도와 양의 상관관계(p<0.01), 제자리멀리뛰기와 영어성취도가 양의 상관관계(p<0.01), 체지방지수는 영어성취도와 양의 상관관계로 나타났다(p<0.05). 2017년도에서는 20m왕복오래달리기와 영어성취도가 양의 상관관계(p<0.05). 오래달리기걷기와 국어성취도, 수학성취도는 음의 상관관계로 나타났다(p<0.01). 앉아윗몸앞으로굽히기와 국어, 영어, 수학성취도는 양의 상관관계(p<0.01), 팔굽혀펴기와 수학성취도는 양의 상관관계(p<0.01), 체지방지수와 영어성취도는 음의 상관관계로 나타났다(p<0.05). 본 연구의 결론은 다양한 신체활동은 체력요인뿐만 아니라 학업 성취도에 긍정적인 관계를 만들기 때문에 보다 효과적인 체력증진프로그램을 개발하고 시행하는 것이 국내학생들의 학습능력증진에 기여할 수 있다고 기대한다.

• 한국직업건강간호학회지
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• 제8권1호
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• pp.5-21
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• 1999

The purpose of this study is to evaluate the physical fitness status and health promoting life styles of the workers. For the purpose, 108 workers who attended the exercise program in Inchon branch of KISCO were selected as the subjects. From Oct. 20th to Nov. 30th, in 1998, they were firstly assessed their physical fitness. The items include cardio-respiratory endurance, flexibility, muscular strength, muscular endurance, agility, power, balance, body composition, etc. Secondly, the health promoting life styles were asked by questionnaires about daily life and dietary habits. Both of them were evaluated by 5 or 3 levels as A(very good) to E(very poor) or A (good) to C(poor). Those data were analyzed percentile, mean, standard deviation by SAS program. Major findings are as follows ; 1. The health promoting life styles were generally good, but 43.5% of the subjects didn't exercise at all. Most of them(93.5%) thought about their physical fitness status as lower than average level. About half of them(48.1%) didn't drink alcohol, non smokers were 70.4% of them. But they had poor dietary habits(lower than average level : 79.6%), females were a little bit better than males. The aged group had the poor body compositions, 21.4% of females and 10.0% of males were obese. 2. Physical fitness status of the workers were assessed as two areas, one is health related, the other is physical function related area. In the health related area, females were better than males, in view of age, forties aged group had the highest scores of all items except cardio-respiratory endurance. Among 'A' and 'B' level, muscular endurance was showed most frequently, followed by muscular strength, flexibility, cardiorespiratory endurance. In physical function related status, balance was ranked highly in the portion of over 'B', followed by power, agility. In view of sex, males were better than females for all items except balance, and there were various figures in the status by age groups. 3. Comprehensive assessment scores were poor(under 'D' leves were most frequent), females were better than males, and teenage group had the worst scores. In ages of the physical fitness, generally they had 1 year under their real ages, and females were better than males. In view of age, forties aged group was ranked highly and teenagers had lowest scores.

• 한국체육학회지인문사회과학편
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• 제51권5호
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• pp.639-647
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• 2012

본 연구는 최근 3개월 동안 저항운동 경력이 없는 남학생 14명을 선정하여 2주간 체력을 안정화 시킨 후, 운동 강도(90, 75, 60% 1RM)와 세트 간 휴식시간(1, 3, 5분)을 조합한 9가지 운동 프로그램을 1주일 간격으로 적용하였다. 근기능 지표들(근수축력, 반복횟수, 총운동량)의 변화를 분석함으로써 적절한 운동 강도와 휴식시간의 효용성을 분석한 결과는 다음과 같다. 운동 강도별 세트 간 휴식시간에 따른 대흉근의 근수축력은 90, 60% 1RM 강도에서 유의하게 감소하였으나, 60% 1RM 강도에서 세트 간 5분 휴식 시에는 유의하게 증가하는 것으로 나타났고, 상완삼두근의 근수축력은 90% 1RM에서 세트 간 휴식시간에 따라 유의하게 감소하는 것으로 나타났다. 반복횟수와 총운동량은 세트 간 휴식시간에 따라 모든 강도에서 유의하게 감소하였으나, 강도가 낮아지고 휴식시간이 길어질수록 유의하게 증가하는 것으로 나타났다. 이상의 결과를 종합하면, 처음 저항운동을 시작하는 사람이나 비단련자의 경우에는 근기능 향상 및 정확한 자세와 기술을 습득할 수 있도록 운동 강도를 낮추거나 휴식시간을 길게 유지하는 방법이 효과적일 것이다.

• 대한물리의학회지
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• 제16권2호
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• pp.101-113
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• 2021

PURPOSE: The purpose of this study was to investigate the differences and correlation between body composition, exercise performance, and behavior based on playing football in childhood. METHODS: 16 subjects who played football in childhood participated in the study. Body composition and exercise performance were measured, and problem behavior was assessed for each of them. All subjects were asked to play football 50 min/day, one day/week for 8-weeks. RESULTS: Muscle mass, muscular strength, balance, and cardiopulmonary endurance, anxiety depression, atrophy depression, attention problems, rule violations, DSM somatization problems, DSM rebellious behavior problems, and sociality significantly increased after 8-weeks. There was a negative (-) correlation between anxiety depression and atrophy depression, and DSM somatization problem and muscular strength, attention problem and balance, and rule violation and cardiopulmonary endurance, after playing football. CONCLUSION: These results confirmed that playing football in childhood had a positive effect on body composition, and that exercise performance and problem behavior were related.