• 대한물리의학회지
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• 제16권1호
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• pp.73-81
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• 2021

PURPOSE: This study examined effects of the untact trunk stabilization exercise program on muscle thickness, trunk strength, maximal expiratory flow, and static balance. METHODS: The subjects were 20 normal adults divided into 10 in the contact exercise group and 10 in the untact exercise group. The trunk stabilization exercise program was conducted for four weeks. The muscle thickness was measured using ultrasound. The maximal expiratory flow was measured using Personal Best Full Range Peak Flow Meter. The static balance was measured through Bio-rescue; and the trunk muscle strength was measured by bending the upper body forward and measuring the time for maintaining the posture. RESULTS: Both contact and untact exercise groups showed significant differences in muscle thickness, muscle strength, maximal expiratory flow, and static balance (p < .05). A significant difference in muscle thickness on ultrasound was observed between the contact and untact exercise groups (p < .05). CONCLUSION: Activation of the transverse abdominal muscle requires accurate instructions of the contact exercise, but despite environmental constraints, the untact exercise program is as effective as the contact exercise for improving muscle strength, maximum expiratory flow, and static balance.

• 대한물리의학회지
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• 제9권4호
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• pp.399-406
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• 2014

PURPOSE: The purpose of this study was to examine the effects of respiratory muscle training on respiratory function, respiratory muscle strength, and cough capacity in stroke patients. METHODS: This study used a nonequivalent control group pre-post test design. We recruited thirty-four stroke patients(16male, 18female), who were assigned to intervention (n=17), or control (n=17) groups. Both groups participated in a conventional stroke rehabilitation program, with the intervention groups also receiving respiratory muscle training 20 minutes a day, three times a week, for 4 weeks. Respiratory function (forced vital capacity) and respiratory muscle strength (maximal inspiratory pressure, maximal expiratory pressure) were assessed by spirometry. Cough capacity (peak expiratory flow) was assessed using a peak flow meter. The collected data were analyzed by independent and paired t-tests. RESULTS: The intervention group showed a significant increase in the forced vital capacity (FVC), maximal inspiratory pressure (MIP), maximal expiratory pressure (MEP) and peak expiratory flow (PEF) at the end of the program, while the control group showed no significant changes. CONCLUSION: This study showed that respiratory muscle training increased respiratory function, respiratory muscle strength, and cough capacity in stroke patients and prevented a decrease in cough capacity. These findings suggest that respiratory muscle training effect on respiratory function, respiratory muscle strength and cough capacity for rehabilitation in patients with stroke.

• 산업보건소식
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• 제16호
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• pp.13-19
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• 1985

• 대한물리의학회지
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• 제6권4호
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• pp.437-445
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• 2011

Purpose : The purpose of this study was to analysis on diaphragm thickness and lung function of stroke patients by walking ability. Methods : We recruited thirty-five adults after stroke(20 male, 15 female) for our study. The subjects were divided into two groups; independent walking group(11 male, 9 female) and non-independent walking group(9 male, 6 female). Assessment of diaphragm thickness was performed using ultrasound in B-mode with a 7.5 MHz linea probe. During the experiment, the subject was seated in the chair. All subjects performed maximal expiratory flow maneuvers using a spirometer in order to determine the forced expiratory volume in 1 second ($FEV_1$), forced vital capacity(FVC), peak expiratory flow(PEF) and $FEV_1$/FVC. Chest expansion was measured with a tape-measure placed circumferentially around the chest wall at the xiphoid process. The collected data analyzed by independent t-test. Results : The diaphragm thickness were significant differences between the independent walking and nonindependent walking group. Values of forced vital capacity, forced expiratory volume at one second, peak expiratory flow in pulmonary function tests were significant differences between the independent walking and non-independent walking group. However, chest expansion were not significant differences in both of the group. Conclusion : This study showed that walking ability of stroke patients have influenced on diaphragm thickness and pulmonary function.

• Tuberculosis and Respiratory Diseases
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• 제45권5호
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• pp.1000-1011
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• 1998

연구배경: 기관지 천식 환자들과 만성폐쇄성폐질환의 진단이나 기도폐쇄 정도를 알기 위하여 통상적으로 노력성 호기곡선이나 최대호기류량곡선을 이용한 환기기능검사가 널리 이용되고 있다. 그러나 외래를 방문하는 환자들이나 자가 치료를 하는 환자들의 경과관찰에는 검사의 간편성으로 인해 peak flow meter를 이용한 peak expiratory flow(PEF)가 많이 이용된다. 이 경우 PEF의 변이성이 크기 때문에 절대값이나 증상이 없을 때의 최대값을 기준으로 비교하여 사용하기도 하는데 검사 판정의 객관성은 추정정상치가 가장 높을 것이다. 그러나 현재까지 국내에서는 최대호기류량곡선을 이용한 PEF(FEFmax)의 추정정상치의 보고는 다수 있으나 peak flow meter를 이용한 보고는 아직까지 없었다. 이에 실제 환자들이 스스로 쉽게 측정할 수 있는 PEF의 추정정상치를 산출하고 이 값이 $FEV_1$을 비롯한 다른 환기기능검사를 어느 정도 정확하게 예측할 수 있는 지를 조사 연구하였다. 방 법: 호흡기 증상이나 기왕 병력이 없는 건강한 남자 129명(나이 ; 19-74 세), 여자 125명(나이 ; 18-67세)을 대상으로 외래에서 mini-Wright peak flow meter(Clement Clarke International Ltd. England)를 이용하여 3 회 이상 PEF를 측정하였다. 아울러 Microspiro HI-501 portable spirometer(Chest Co., Japan)로 노력성호기곡선, 최대호기류량곡선을 측정 분석하여 $FEV_1$, FVC, $FEV_1/FVC$, $FEF_{25-75%}$, $FEF_{25%}$, $FEF_{50%}$, $FEF_{75%}$와 FEFmax를 구하여 각각의 추정정상치를 구하였고 PEF의 $FEV_1$ 및 FEFmax에 대한 설명력을 회귀분석을 통해 구하였다. 결 과: PEF(L/min)의 추정정상치는 남자가 -2.45$\times$Age(year) + 1.36 $\times$ Height(cm) + 427였고 ($R^2=0.28$), 여자에서는 -0.96 $\times$ Age(year) + 2.01 $\times$ Height(cm)+129였다($R^2=0.12$). 최대호기류량곡선에서 산출한 FEFmax는 PEF보다 납자에서는 $125{\pm}74.0$(L/min), 여자에서는 $118{\pm}52.2$(L/min) 적었다. PEF로 예측할 수 있는 $FEV_1$(ml)값은 남자에서 5.98 $\times$ PEF(L/min) + 303 이고 ($R^2=0.43$), 여자에서는 4.61 $\times$ PEF(L/min) +291 이었다($R^2=0.33$). 결 론: 건강한 성인 254명(남자 129명, 여자 125명)을 대상으로 peak flow meter로 측정한 PEF의 추정정상치를 연령과 신장을 변수로 하여 구하였다. 여기서 측정한 PEF로 $FEV_1$ 및 FEFmax를 어느 정도 예측할 수 있었다. 그리고 측정기계 및 방법에 따라서 PEF 값이 달라짐을 확인하였는데 이런 점을 유의한다면 PEF의 측정은 향후 환자 진료에 많은 도움이 될 것으로 생각한다.

• Clinical and Experimental Pediatrics
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• 제60권9호
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• pp.290-295
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• 2017

Purpose: Airway pathology in children with atopic asthma can be reflected by the concave shape of the maximal expiratory flow-volume (MEFV) curve and high fractional exhaled nitric oxide (FeNO) values. We evaluated the capacity of the curvilinearity of the MEFV curve, FeNO, and their combination to distinguish subjects with atopic asthma from healthy individuals. Methods: FeNO and angle ${\beta}$, which characterizes the general configuration of the MEFV curve, were determined in 119 steroid-naïve individuals with atopic asthma aged 8 to 16 years, and in 92 age-matched healthy controls. Receiver operating characteristic (ROC) curve analyses were performed to determine the cutoff points of FeNO and angle ${\beta}$ that provided the best combination of sensitivity and specificity for asthma detection. Results: Asthmatic patients had a significantly smaller angle ${\beta}$ and higher FeNO compared with healthy controls (both, P<0.001). For asthma detection, the best cutoff values of angle ${\beta}$ and FeNO were observed at $189.3^{\circ}$ and 22 parts per billion, respectively. The area under the ROC curve for the combination of angle ${\beta}$ and FeNO improved to 0.91 (95% confidence interval [CI], 0.87-0.95) from 0.80 (95% CI, 0.75-0.86; P<0.001) for angle ${\beta}$ alone and 0.86 (95% CI, 0.82-0.91; P=0.002) for FeNO alone. In addition, the combination enhanced sensitivity with no significant decrease in specificity. Conclusion: These data suggest that the combined use of the curvilinearity of the MEFV curve and FeNO is a useful tool to differentiate between children with and without atopic asthma.

• 대한물리의학회지
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• 제11권1호
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• pp.35-43
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• 2016

PURPOSE: The purpose of this study was to investigate the effects of passive stretching exercises of the scalene muscles known as respiratory accessory muscles, on forced vital capacity. METHODS: Ten of the participants were randomly selected as an experiment group to perform passive stretching exercises on the scalene muscles. Ten additional students were selected randomly as a control group. The forced vital capacity was assessed by using a digital spirometer (Pony FX, COSMED Inc, Italy) both before and after the passive stretching exercises were performed. Subsequently, passive stretching exercises of the scalene muscles were performed in the experimental group. There were no interventions to the control group. RESULTS: As for the forced vital capacity (FVC), the experiment group showed significant increase in items of forced vital capacity (FVC), forced expiratory volume in 1 second ($FEV_1$), peak expiratory flow (PEF), forced expiratory volume in 1 second/vital capacity ($FEV_1/VC$), and maximal expiratory flow 75%(MEF 75%) after the scalenemuscles passive stretching exercises were performed. The control group, however, showed no change. CONCLUSION: This study demonstrated that passive stretching exercises of the scalene muscles could be helpful for forced vital capacity improvement.

• 정형스포츠물리치료학회지
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• 제14권2호
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• pp.25-32
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• 2018

Purpose: This study aimed to investigate the relationship between trunk control and pulmonary function and respiratory muscle strength in stroke patients. Methods: This study included 30 patients who had been clinically diagnosed with strokes, and trunk control abilities were measured using the trunk impairment scale (TIS). The subjects were classified into a group with high trunk control ability (TIS score ${\geq}20$) and a group with low trunk control ability (TIS score < 20). The patients' forced vital capacity (FVC), forced expiratory volume in one second (FEV1), peak expiratory flow (PEF), maximal inspiratory pressure (MIP), and maximal expiratory pressure (MEP) were measured. To compare the pulmonary function and respiratory muscle strength between the two groups, the measurement data were analyzed using an independent T-test, and the relationship between TIS and respiratory function was analyzed using a Pearson correlation. Results: The high trunk control ability group had significantly higher pulmonary function and respiratory muscle strength than the low trunk control ability group. Significant positive correlations were found between trunk control and FVC, FEV1, PEF, MIP, and MEP. Conclusions: This study demonstrated that trunk control affects pulmonary function and respiratory muscle strength in stroke patients.

• 대한후두음성언어의학회지
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• 제14권2호
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• pp.88-93
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• 2003

성악훈련을 받고있는 여학생들은 호흡훈련과 호흡훈련 보조기구를 이용하여 훈련을 하면서 발성연습을 하면 최대호기압과 최대흡기압이 증가하여 호흡근육의 근력이 증가하였다는 것을 알 수 있었으나 호흡기능에는 변화가 없어 호흡훈련에 의해 폐기능이 증진되지는 않는다는 결론을 얻게 되었다. 최대발성지속시간 역시 크게 증가하여 성악을 공부하는 학생들이 이 방법대로 훈련을 하는 것이 효과적이지 않을까 추정된다.

• 국제물리치료학회지
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• 제9권4호
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• pp.1663-1668
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• 2018

This study was conducted to examine the effects of Evjenth-Hamberg stretching of the sternocleidomastoid, upper trapezius, and pectoralis major on the lung function of adults with forward neck posture. The subjects were 20 adult students in P university located in Pohang, Korea, whose degree of head forward displacement measured according to NEW YORK state posture test was mild. The subjects were randomly and equally assigned to the Evjenth-Hamberg Stretching group (EHSG, n=10) and the control group (CG, n=10). Their forced vital capacity (FVC), slow vital capacity (SVC), and maximal voluntary ventilation (MVV) were measured before and after the experiment. In within-group comparison, only the EHSG experienced statistically significant improvement in FVC, forced expiratory volume in the first second (FEV1), and peak expiratory flow (PEE) after the experiment, compared to before the experiment (.05