• 제목/요약/키워드: Borg-RPE

검색결과 17건 처리시간 0.02초

RPE에 의한 운동강도 예측인자의 남녀 대학생 비교 (Gender Comparison of Ratings of Perceived Exertion (RPE) as a Predictor of Exercise Intensity in College Students)

  • 김도연;이정아
    • 생명과학회지
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    • 제21권1호
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    • pp.9-14
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    • 2011
  • 심박수(heart rate) 및 산소 소비량(oxygen consumption) 등의 생리학적 변수는 운동자각도(RPE)와 밀접한 관련이 있으며, RPE의 남녀차이에 의한 예측 운동강도의 정확성은 아직 밝혀지지 않고 있고, 본 연구는 남녀 대학생의 심장 혈관 및 신진대사의 반응을 평가하고 남녀의 차이를 밝히는 데 있다. 남자대학생($25.1{\pm}1.56$ yr)과 여자대학생($25.0{\pm}4.12$ yr) 각각 10명이 본 연구에 자발적으로 참여를 하였고, 본 연구를 위하여 설정된RPE는 Borg의 15 범주에서 결정을 하였으며, 점증적 운동부하(graded exercise testing)는 Bruce Treadmill Protocol을 이용하였다. 남녀의 평균 slope (p=0.501)와 RPE의 plotting rates와 최대산소섭취율(% $VO_2$max)은 유의한 차이가 나타나지 않았다. 각자의 상대적 최대산소섭취량은 남학생의 경우52.36${\pm}$7.35 ml/kg/min, 여학생은 41.44${\pm}$6.71 ml/kg/min로 나타나 두 그룹간에 유의하게 큰 차이가 있었으며, 절대적 최대산소섭취량은 남학생은 4.05${\pm}$0.36 l/min, 여학생은 2.53${\pm}$0.39 l/min로 나타나 두 그룹간에 큰 차이가 나타냈다. 남학생과 여학생간의 slope, y-intercept, SEE는 통계적으로 유의한 차이는 없었다. 본 연구에서 운동강도에 따른 남학생과 여학생의 RPE 의 차이는 유의하게 나타나지 않았다. 이상의 결과로 보아 RPE는 운동중 산소섭취량에 대한 운동강도의 예측에 남녀별 차이가 없어 유효한 예측인자라고 사료된다.

숙련된 근력 사용자와 미숙련 근력 사용자간 단시간의 전신 근력활동이 정신적 작업에 미치는 영향 (The Effect of a Whole-body Activity in a Short Time Period on Mental Work between The Skilled and The Unskilled in Muscular Movement)

  • 김정만
    • 산업경영시스템학회지
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    • 제25권6호
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    • pp.42-47
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    • 2002
  • This paper examines the effects on mental task of changes in the intensity of physical activity. A treadmill-equipped instrument and perception tester were used to attain several levels of physical activity. In this paper, in order to determine the individual levels of physical activity of subjects, Borg-RPE scale, heart rate(HR) and respiratory quotient(RQ) were used. Also, an arithmetic addition test in whole-body activity on treadmill-equipped instrument as an indicator of mental task were performed. In the above experiments, the scores obtained in arithmetic addition test administered before and after physical activity at each intensity level used. Restricted within the limits of this paper, the results of these tests showed that the performance of mental task was Increased after physical activity.

Treadmill을 이용한 단시간 전신운동이 반응시간과 정신적 작업에 미치는 영향 (The Influences of Whole-body Activity on Reaction Time and Mental Work Using Treadmill-eqipped Instrument)

  • 김정만
    • 한국안전학회지
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    • 제16권4호
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    • pp.182-187
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    • 2001
  • This paper examines the effects on human reaction time and mental fatigue of changes in the intensity of physical activity. A treadmill-equipped instrument and perception tester were used to attain several levels of physical activity. In this paper, in order to determine the individual levels of physical activity of subjects, Borg-RPE scale, Heart Rate(HR) and Respiratory Quotient(RQ) were used. Also, a reaction test in whole-body activity on treadmill-equipped instrument and an addition test as an indicator of mental fatigue were performed. In the above experiments, the scores obtained in addition test administered before and after Physical activity at each intensity level used. Restricted within the limits of this paper, the results of these tests showed that mental fatigue decreased after physical activity.

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강도가 점증하는 전신활동에 따른 반응시간의 변화와 정신작업의 정확도 (Variation of reaction time and accuracy of mental work with strength of whole-body activity gradually increasing)

  • 김정만
    • 한국산업정보학회논문지
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    • 제9권1호
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    • pp.56-62
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    • 2004
  • 산업현장에서는 높은 강도의 육체적 작업에 병행하여 정신적 작업이 요구되는 경우가 있다. 육체적 작업 후에 피로의 회복을 위한 충분한 시간이 주어지지 않는 경우, 이 피로에 수반되는 정신적 피로에 의해 정신적 작업의 정확도는 저하된다는 보고가 있다. 그러나 본 연구에서는 높은 강도의 근육활동에 숙련된 그룹과 숙련되지 못한 그룹 모두에서 본 연구를 위한 실험조건 하에서는 오히려 육체적 활동 후의 정신적 작업의 정확도가 증가한다는 것이 밝혀졌다. 또한 물리적 자극에 대한 이들 그룹의 반응시간을 측정하여 정신작업의 정확도와의 관계를 해석하였다. 그 결과 반응시간은 높은 강도의 근육활동에 숙련된 그룹에서만 운동강도에 따라 안정적으로 점증하였고, 모든 피실험자 그룹에 대해서 정신작업의 정확도와 반응시간은 밀접한 관계에 있지 않음을 알 수 있었다.

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Effect of Trunk Inclination Angles on Trunk Muscle Activity and Subjective Difficulties During Supine Bridge Exercise with a Suspension Device

  • Kim, Jwa-Jun;Park, Se-Yeon
    • PNF and Movement
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    • 제18권3호
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    • pp.315-321
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    • 2020
  • Purpose: Recent studies have indicated that applying different inclination angles and suspension devices could be a useful way of performing exercises that include the co-activation of the trunk muscles. Present study was to examine the influences of changes in the inclination angle during trunk muscle activity while engaging in a bridge exercise with a suspension device. Methods: 18 healthy, physically active male volunteers completed three trunk inclination angles (15°, 30°, and 45°) for bridge exercise variations. The surface electromyography responses of the rectus abdominis, internal oblique (IO), erector spinae (ES), and rectus femoris (RF), as well as the subjective difficulty (Borg RPE score), were investigated during these bridge exercises. Results: The bridge with a 45° inclination angle suspension significantly increased the muscular activities of the RA and RF and increased the Borg RPE scores (p<0.05). The bridge with a 15° suspension significantly elevated the ES activities when compared to the other conditions. Conclusion: The present study demonstrated that a higher inclination angle could not activate the overall trunk muscles during the bridge exercise. The RA and RF produced greater activation during the bridge exercise with the higher inclination angle. On the other hand, the activities of the erector spine were greater during the bridge exercise with the lower inclination angle. The present study suggests that applying a low trunk inclination angle for the supine bridge exercise is suitable for activating the erector spine muscles.

Effect of Different Air Hole Diameters of the Inspiratory Muscle Trainer on the Rating of Perceived Exertion and Inspiratory Muscle Activity during Breathing Exercise

  • Shin, Areum;Kim, Kisong
    • 대한통합의학회지
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    • 제7권2호
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    • pp.133-139
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    • 2019
  • Purpose : This study aims to investigate the rating of perceived exertion (RPE) and muscle activity of the inspiratory primary and accessory muscle during breathing exercise with different air hole diameters of the inspiratory muscle trainer (IMT). Methods : The Borg's scale and surface electromyography (EMG) was used to collect data of the RPE and muscle activity of the inspiratory primary the external intercostal (EI) and diaphragm (DIA) and accessory muscles anterior scalene (AS), sternocleidomastoid (SCM), pectoralis major (PM), and upper trapezius (UT) muscles during breathing exercise with different air hole diameters (6 mm, 4 mm, and 2 mm) of the IMT in healthy young male subjects. Results : The RPE and muscle activities of the AS, SCM, and UT are increased significantly in accordance to the decreasing diameter of air hole of air tip in IMT. However, there are no differences in the muscle activities of the PM, EI, and DIA based on differences of diameters of air hole of air tip in IMT. Conclusion : The smaller the diametr of IMT air-hole, RPE and muscle activities of AS, SCM and UT were increased. Therefore, further study would be necessary to investigate the proper intensity and relaxation posture for the exercise protocol to strengthen the inspiratory primary muscles.

Step aerobics의 RPE가 여고생의 면역기능에 미치는 영향 (The Effects of RPE of Step Aerobics on the Immunologic Function of High School Girls)

  • 권선옥;정선태
    • 생명과학회지
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    • 제20권2호
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    • pp.304-313
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    • 2010
  • J시 소재 K여자고등학교 1학년 중에서 %fat이 30% 이상인 24명을 유의추출법에 의해 운동그룹 A (8명), B (8명) 그룹과 통제그룹(8명)으로 3그룹으로 구분하여 Borg의 주관적운동강도를 이용, A그룹은 RPE 15-17 (hard-very hard; 힘듦-매우 힘듦)${\times}$3 sets, B그룹은 RPE 11-13 (fairly light-somewhat hard; 알맞음-약간 힘듦)${\times}$3 sets로 설정하여 step aerobics (step box: 길이 68 cm, 폭 28 cm, 높이 15 cm, 무게 450 g)를 1일 50-60분간, 주3회(월, 수, 금)로 총 8주간 실시하였다. 본 연구는 step aerobics의 RPE가 비만 여고생의 면역기능(Neutrophil, Lymphocyte, Monocyte, Eosinophil, Basophil, IgG, IgA, IgM)에 어떠한 영향을 미치는가를 알아보는 것이었다. 자료처리는 SPSS Ver. 14.0을 이용하여 집단과 시기 간 상호작용의 효과를 알아보기 위하여 repeated two-way ANOVA를, 집단 내 운동 전 후는 paired t-test를 실시하였고, 집단 간은 변화율(% diff.)을 구하여 one-way ANOVA를 실시하여 다음과 같은 결론을 얻었다. WBC에서, 집단 내 비교에서 A그룹은 Neutrophil, Monocyte, Basophil, Eosinophil 모두 증가하였으나 Lymphocyte는 변화가 없었고, B그룹은 Eosinophil은 감소하였으나 Neutrophil, Lymphocyte, Monocyte, Basophil 모두 변화가 없었으며, 통제군은 Neutrophil, Basophil, Eosinophil은 감소하였으나 Lymphocyte와 Monocyte는 변화가 없었다. 집단 간 비교의 Neutrophil은 A그룹이 B그룹과 통제군보다 더 많이 증가하였고, Lymphocyte는 집단 간 차이가 없었으며, Monocyte는 A, B그룹이 통제군보다 많이 증가하였다. Basophil과 Eosinophil은 A그룹이 B그룹과 통제군보다 더 많이 증가하였다. Immunoglobin에서, 집단 내 비교에서 A그룹은 IgG는 증가하였으나 IgA와 IgM는 변화가 없었고, A그룹은 IgA는 증가하였으나 IgG는 감소하였고 IgM은 변화가 없었다. 통제군은 IgG은 감소하였으나 IgA와 IgM은 변화가 없었다. 집단 간 비교의 IgA는 A그룹이 통제군보다 증가하였고, IgG는 A그룹이 B그룹과 통제군보다 증가하였으나 IgM은 집단 간 차이가 없었다. 요약하면 세 집단 모두 운동프로그램 전 후의 WBC와 Ig 수준이 연령에 맞게 참고치 내의 수준에 머물렀지만 step aerobics를 RPE 15-17로 실시한 A그룹의 경우가 가장 많은 측정항목에서 증가를 보였고, 이 결과는 참고치 범위 내에서 면역기능의 항진을 보여주는 것으로 면역기능의 향상을 위한 step aerobics의 RPE 강도는 힘듦-매우 힘듦(15-17)의 수준으로 실시하는 것이 효과적인 것으로 생각된다.

Effect of tool weight and hand posture on the postural tremor of the upper extremity

  • Kim, Jae Young;Song, Ho Young;Yun, Myung Hwan;Yun, Myun W
    • 대한인간공학회지
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    • 제15권2호
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    • pp.177-184
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    • 1996
  • In light-weight hand tools, static posture may result in postural fatigue. Psotural tremor of the upper extremity in a static posture was measured to provide guidelines for hand tool weight. Postural tremor was measured on five levels of tool weitht : no weight, 400g, 800g, 1200g, and 1600g. Three types of camcorder recording postures were selected. For each condition, postural tremor was measured together with ENG of biceps, deltoid and pectoralis major, and Borg's CR-20 ratings of perceved exertion. Results of the experiment are as follows : frequency analysis of tremor revealed increased amplitude of frequency bands of 2-4Hz and 10-14Hz. Postural tremor of the upper extremeity maintained the initial level until fatigue developed. After the development of fatigue, the rate of change of postural tremor significantly increased. Different tool weights and hand postures showed different rates of tremor increase. Time tp fatigue and corresaponding endurance time were positively correlated with Borg's RPE scores.

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Comparison of the effects of different-sized airways in inspiratory trainers on maximal inspiratory pressure and rating of perceived exertion scale in healthy young people

  • Hwang, Young-In;Kim, Ki-Song
    • Physical Therapy Rehabilitation Science
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    • 제7권1호
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    • pp.18-22
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    • 2018
  • Objective: This study aimed to investigate the effect of different-sized airways of the inspiratory muscle trainer (IMT) on maximal inspiratory pressure (MIP) and the rating of perceived exertion, as measured by the modified Borg scale (m-Borg). Design: Cross-sectional study. Methods: Twenty healthy subjects (10 men, 10 women) volunteered for the study. The spirometry was used to measure MIP. The trial order of the three spirometry conditions was chosen randomly. After measuring the MIP and before taking the final break, each of the conditions were immediately measured using the m-Borg. All subjects used the IMT with an airway diameter of 5-, 6-, and 7-mm. Results: The MIP significantly decreased with the decreasing airway diameter of the IMT (p<0.001), and the differences in all three conditions (7- and 6-mm, 6- and 5-mm, and 7- and 5-mm airways) were significant (p<0.05). The RPE significantly increased with the decreasing airway diameter of the IMT (p<0.001), and the differences in all three conditions (7- and 6-mm, 6- and 5-mm, and 7- and 5-mm airways) were significant (p<0.05). Conclusions: Decreasing the airway diameter of the IMT decreased the MIP and increased the m-Borg. In regards to physical exercise within the clinical setting, the m-Borg could be a useful as a prior monitoring method to prevent dyspnea for patients with narrowed airways (blocked with secretion or sputum in pulmonary disease) and the different-sized airways of the IMT could be applied as a useful tool to improve MIP for prevention of pulmonary disease.

Effect of Neck Position on Muscle Fatigue during Shaker Exercise

  • Park, Eun-Jung;Koo, Jung-Wan
    • 대한인간공학회지
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    • 제32권6호
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    • pp.541-547
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    • 2013
  • Objective: The aim of this study is to find the influence on muscle fatigue by changing an angle of neck while Shaker exercise. Background: Shaker exercise is commonly applied to dysphagia patients for strengthen suprahyoid muscle(SHM) and relaxing upper esophageal sphincter. Method: Experiments were conducted by measuring muscle fatigue with surface electromyography(SEMG) in case of neck $15^{\circ}$ and $50^{\circ}$ flexion, in addition to original method. For the study 30 undergraduate students were participated as subjects. Muscle fatigue was measured with variations of median frequency(MF) and median frequency slope(MFS) by attaching SEMG to 3 muscles. At the same time, perceived exertion was measured by using Borg's rating of perceived exertion(RPE). Results: A MF was increased when low angle in SHM, both male and female. It means that muscle fatigue was significantly decreased(p<.05). RPE was significantly increased when low angle(p<.01). Perceived exertion explained 15.2% of the variation of MF in SHM. And regression equation was, MF in SHM = 59.918 + (4,910 * RPE). Conclusion: The outcome shows that it is possible to use the efficient method which makes muscle fatigue decrease by reducing the angle of neck flexion. Application: The results might contribute to develop the effective Shaker exercise method.