• 제목/요약/키워드: Paired T-Test

검색결과 2,816건 처리시간 0.03초

불안정한 지지면 위에서의 플랭크 운동이 만성허리통증환자의 유연성, 배 근육 두께 및 통증에 미치는 영향 (The Effect of Unstable Support Surface Plank Exercise on Flexibility, Abdominal Muscle Thickness and Pain in Chronic Low Back Pain)

  • 한우정;손경현
    • 대한물리치료과학회지
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    • 제26권3호
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    • pp.23-36
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    • 2019
  • Background: The purpose of this study was to investigate the effect of Plank exercise on unstable support surfaces on flexibility, abdominal muscle thickness and pain in patients with chronic back pain. Design: Randomized controlled trial. Methods: This study was performed on 16 patients with chronic back pain of ◯◯ military unit. Sixteen subjects were randomly assigned into two groups, an upper extremity trainer group (group I, n=8) and a lower extremity trainer group (group II, n=8). The subjects in group I carried out Flank exercise applying the stability trainer to their upper extremities and ones in group II carried out the same exercise applying the stability trainer to their lower extremities for 4 weeks. In order to ascertain the difference between two groups, flexibility, abdominal muscle thickness and pain were measured before and after the exercise. The flexibility was measured by sit and reach test, the thickness of the abdominal muscle was measured by using ultrasonic imaging equipment, and the pain was measured by the visual analogue scale. A paired t-test was utilized to compare changes in pain, abdominal muscle thickness and flexibility before and after flank exercise on unstable support surfaces. Analysis of Covariance (ANCOVA) was performed for ascertaining the significant differences between groups. The significance level was set by α=.05. Results: 1) The flexibilities of two groups were increased after the exercise (p<0.05). 2) In both groups, the thicknesses of rectus abdominis, external oblique abdominis, internal oblique abdominis, and transverse abdominis were all increased after the exercise (p<0.05). 3) The pains in both groups were decreased after the exercise (p<0.05). 4) In the comparisons of two groups, there were no differences in the flexibility, thickness of external oblique abdominis, internal oblique abdominis and transverse abdominis and pain (p>0.05). Whereas only thickness of Rectus abdominis was larger in the group I than in the group II (p<0.05). Conclusion: Plank exercise on the unstable support surface for 4 weeks resulted in increased flexibility, abdominal muscle thickness and pain reduction in patients with chronic back pain. Therefore, it is considered that performing flank exercise on the unstable supporting surface is suitable for the reduction of the pain in patients with chronic back pain. However, in this study, it is considered that continuous and diverse studies are needed because there was not a large difference between the groups when the upper or lower limbs are provided unstable support surfaces.

롤러신발과 일반신발의 착용 후 보행 시 하지근의 근전도 비교 (The Effects of Wearing Roller Shoes on Muscle Activity in The Lower Extremity During Walking)

  • 채원식;임영태;이민형;김정자;김연정;장재익;박원균;진재흥
    • 한국운동역학회지
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    • 제16권3호
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    • pp.137-148
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    • 2006
  • The purpose of this study was to compare muscle activity in the lower extremity during walking wearing jogging and roller shoes. Twelve male middle school students (age: 15.0 yrs, height 173.7 cm, weight 587.7 N) who have no known musculoskeletal disorders were recruited as the subjects. Seven pairs of surface electrodes (QEMG8, Laxtha Korea, gain = 1,000, input impedance >$1012{\Omega}$, CMMR >100 dB) were attached to the right-hand side of the body to monitor the rectus femoris (RF), vastus medialis (VM), vastus lateralis (VL), biceps femoris (BF), tibialis anterior (TA), and medial (GM) and lateral gastrocnemius (GL) while subjects walked wearing roller and jogging shoes in random order at a speed of 1.1 m/s. An event sync unit with a bright LED light was used to synchronize the video and EMG recordings. EMG data were filtered using a 10 Hz to 350 Hz Butterworth band-passdigital filter and further normalized to the respective maximum voluntary isometric contraction EMG levels. For each trial being analyzed, five critical instants and four phases were identified from the recording. Averaged IEMG and peak IEMG were determined for each trial. For each dependent variable, paired t-test was performed to test if significant difference existed between shoe conditions (p<.05). The VM, TA, BF, and GM activities during the initial double limb stance and the initial single limb stance reduced significantly when going from jogging shoe to roller shoe condition. The decrease in EMG levels in those muscles indicated that the subjects locked the ankle and knee joints in an awkward fashion to compensate for the imbalance. Muscle activity in the GM for the roller shoe condition was significantly greater than the corresponding value for the jogging shoe condition during the terminal double limb stance and the terminal single limb stance. Because the subjects tried to keep their upper body weight in front of the hip to prevent falling backward, the GM activity for the roller shoe condition increased. It seems that there are differences in muscle activity between roller shoe and jogging shoe conditions. The differences in EMG pattern may be caused primarily by the altered position of ankle, knee, and center of mass throughout the walking cycle. Future studies should examine joint kinematics during walking with roller shoes.

정신 지체아 부모의 스트레스, 대응 및 적응 비교 (A Comparison Study of Stress, Coping and Adaptation between Fathers and Mothers of Mentally Retarded Children)

  • 문영임;구현영
    • 대한간호학회지
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    • 제26권1호
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    • pp.165-176
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    • 1996
  • The purpose of this study was to contribute to family nursing in the areas of reducing stress and improving coping for parents of mentally retarded children. Data were collected through self-report questionnaires during a period of 2 months between November 1994 and January 1995 in the Kyoung-in area. The subjects consist of 176 parents (88 mothers and 88 fathers) of mentally retarded children attending schools for the handicapped. The levels of general stress and of parental role stress were measured with the General stress scale and the Parental role stress scale, respectively. The coping scale developed by Folkman & LaZarus was adopted to measure the level of coping, and the patterns of adaptation scale developed by Damrosch & Perry was adopted to measure the patterns of adaptation. The data were analyzed by a SAS program using Fisher's exact test, paired t-test, and oneway ANOVA. The results are as follows ; 1. The level of general stress was significantly higher in mothers than in fathers. Mothers experienced a significantly greater level of parental role stress than fathers did. No significant difference in the level of coping was observed between mothers and fathers. There were differences in maternal and paternal patterns of adaptation. 2. The adaptation pattern of fathers was different according to their level of general stress, parental role stress and coping. The adaptation pattern of mothers was not different according to their level of general stress and parental role stress, but was according to their level of coping. 3. General stress experienced by fathers was different according to education, health status and support from their spouses. Satisfaction with family life, satisfaction with spouse and the support from spouse influenced coping used by fathers. Their level of parental role stress was not associated with any of their general characteristics. 4. In mothers, the level of general stress was different according to their health status, the level of parental role stress was related to satisfaction with family life and satisfaction with spouse. Their level of coping was associated with the sup port from spouse. The above findings indicate that mothers did not have more coping strategies than fathers did, despite the results which showed that mothers experienced greater stress than fathers did. Especially, the adaptation pattern of mothers was different according to their level of coping. Hence, nursing interventions directed at managing stress and improving coping should be used with mothers who use adaptation pattern 1. In particular, fathers should actively participate in parenting, and support their spouses.

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Q-Ray View 활용이 치위생과정을 위한 치아 검사의 신뢰도 향상에 미치는 영향 (The Effects of the Q-Ray View on Reliability of Assessing a Tooth Status for Dental Hygiene Process)

  • 오혜영;정회인;구혜민;김백일
    • 치위생과학회지
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    • 제14권4호
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    • pp.461-467
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    • 2014
  • 본 연구는 치위생과 대학에서 이루어지고 있는 치위생과정 실습에서 3학년 학생들이 대상자의 치아상태를 Q-ray view를 사용하지 않고 평가한 방법과 Q-ray view를 사용하여 평가한 방법을 숙련된 검사자의 치아검사결과를 기준치로 하여 부위별, 병소 및 수복물별 일치도를 비교하였다. 부위별 차이에서 병소와 수복물은 Q-ray view를 사용한 경우에 높은 일치도를 나타냈다. 특히 상악전치부는 수복물에서 100% 정답기준과 일치하였다. 병소 및 수복물별 차이에서 Q-ray view를 사용한 경우 병소에서는 치아우식증과 초기우식증, 치아파절에서 차이가 있었고 수복물에서는 수복물 또는 치면열구전색이 없는 경우와 심미수복물에서 유의한 차이가 있었다. 본 연구의 결과 Q-ray view를 병행해서 치아검사를 수행했을 때 경험이 부족한 치위생과 학생의 치아검사 신뢰성이 향상되었다. 따라서 치위생과정 실습에서 Q-ray view는 학생의 치아검사역량 증진에 효과적인 도구로 활용될 수 있을 것이다.

운동발달장애아 어머니와 아버지의 스트레스 비교 (Comparison of Stress Between the Mother and Father Who Have Children)

  • 송주영
    • 한국전문물리치료학회지
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    • 제5권2호
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    • pp.65-80
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    • 1998
  • Parents of handicapped children are experiencing difficulties in their children's care, social isolation, change of life style and lirnited leisure time. Because the parents should take care of the children's daily life, they have lots of psychological and physical stress. Chronic stress of parents puts stress to the other family members and affects the development of children with handicap. The purpose of this study were to identify the level of stress in each of parents of children with motor problem, the characteristics of the children and general information related with the children, and to analyse the stress by reasons. Specially organized questionnaire were used for an investigation method. "Test of stress in mother who has children with chronic illness" by Kim Hee-soon were modified and used. The questionnaire answered by 43 mothers and 35 fathers were analyzed. Data analysis includes frequency analysis, Pearson correlation coefficients, paired-samples t-test and MANOV A by SPSSWIN. The results were as follows: 1) Degree of handicap was most moderate (46.5%), level of motor development was most pull to walk (34.9%), and combined handicap was 69.8%. 2) Sexual distribution represented that 51.2% male and 48.8% female. The cost of physical therapy was 69.8% in no more than 100,000 won. 3) The mean of age, for the mother was 32.8 years and 35.3 years. Level of motor development that mother and father expect was 88.4%, 83% walk alone. 4) Both mother and father experienced stress in other of Part II (changes in father was the illness status of the child and difficulty in taking care of child), Part III (prognosis of the child's condition), Part I (social-personal relationships and the responsibility of the care givers). In the total score of stress, mother's stress is indicated higher level than father's stress. 5) There was no correlationship between characteristics and stress of mother and father. 6) There was no statistically significant difference between characteristics and related general information of children with handicap and stress of mother and father. As a results, the mother of children with handicap are experiencing more stress than the father. Both of parents have the most difficulties in the changes in the illness status of the child and difficulty in taking care of child. This study can be used as resources of education, therapy and counselling for children with handicap and their parents. This study, also, can be used to encourage the quality of Iife for the children with handicapped and their family.

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자기효능ㆍ희망증진프로그램이 자기간호 행위와 삶의 질에 미치는 효과 -백혈병 환자 중심- (Effects of a Program to Promote Self-Efficacy and Hope on the Self-Care Behaviors and the Quality of Life in Patients with Leukemia)

  • 오복자;이은옥;태영숙;엄동춘
    • 대한간호학회지
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    • 제27권3호
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    • pp.627-638
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    • 1997
  • Most patients having leukemia suffer severely from emotional turmoil due to the generalized perception that cancer will be fatal. The conventional chemotherapy results in side effects such as severe bone marrow depression which interfere with self-care management, vital for improvement in their condition. Bandura's theory of the self-efficacy suggests that self- efficacy can be enforced by performance attainments, vicarious experiences, verbal per-suasion and the release of emotional arousal. Self-efficacy can be enforced by a program of vicarious experiences and verbal persuasion, while the emotional arousal can be relieved through a hope promotion program, If once self-efficacy increases, the patient's self-care behaviors and the quality of life will also increase. The purpose of this study was to empirically test the effects of a program, to promote self-efficacy and hope, on self-care behaviors and quality of life in patients having leukemia. In this study, three types of approaches to enhance self-efficacy and hope were used : 1) a 20-minute long slide /tape for vacarious experiences : 2) a 10-minute long telephone call coaching for verbal persuasion ; and 3) two booklets for information about the symptoms of leukemia and treatment modalities and hope promotion. Thirty one patients were recruited in the experimental group and 29 in the control group with a nonequivalent pretest-posttest design. The subjects were patients with leukemia undergoing chemotherapy. Sherer and Maddux's self-efficacy scale, Nowotny's hope scale, and Padilla's quality of life scale were employed with some modifications. A self-care behavior scale was developed by the researchers. Statistical analyses including paired t-test, Chi-square, ANCOVA and ANOVA, were used. The results are as follows : The levels of self-efficacy, self-care behavior and quality of life were higher in the experimental group than in the control group after four weeks of intervention(F=28.71, P=.0001 ; F=63.35, P=.0001 F=16.57, P=.0001). After ten weeks of intervention, all of the dependent variables(self-efficacy, self-care behavior, hope & quality of life) in the experimental group were higher than in the control group (F=74.12, P=.0001 ; F=108.34, P=.0001 ; F=13,11, P=.001 : F=43.52, P=.0001). In conclusion, self-care behavior and quality of life increased mainly through an increase in self-efficacy, while increases in hope took more time and effort.

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산림 걷기 운동이 내당능장애와 인슐린 비의존형 당뇨병 노인 환자의 혈당치에 미치는 효과 (Effects of Acute forest Walking Exercise on Blood Glucose of IGT, NIDDM in the Elderly)

  • 최종환;신원섭;노기택;연평식
    • 한국산림과학회지
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    • 제99권1호
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    • pp.47-51
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    • 2010
  • 본 연구의 목적은 일회성 산림 걷기 운동이 내당능장애(impaired glucose tolerance, IGT)와 인슐린 비의존성 당뇨병(non-insulin-dependent diabetes mellitus, NIDDM)환자의 혈당치 변화에 어떠한 영향을 미치는 가를 알아보기 위한 것이었다. 연구의 대상자는 노인 여성(n=60)을 IGT 산림 걷기 운동군(n=15; $66.21{\pm}4.16$ yrs), NIDDM 산림 걷기 운동군(n=15; $64.85{\pm}3.23$ yrs), IGT 운동장 걷기 운동군(n=15; $67.44{\pm}1.78$ yrs), NIDDM 운동장 걷기 운동군(n=15; $65.55{\pm}8.21$ yrs)으로 구분하여 운동강도 HRmax 50~60%의 산림 걷기 운동(인터벌+저항성 근육운동)과 운동장 걷기 운동(유산소성 운동) 프로그램을 적용하여 운동 전과 후에 혈당을 측정하여 분석하였다. 그 결과, 첫째 내당능장애군에서 산림 걷기와 운동장 걷기 집단은 운동 후에 모두 유의한 수준에서 혈당치의 감소를 보였고, 둘째 인슐린 비의존성 당뇨병군에서 산림 걷기 집단은 운동 후에 혈당치가 유의하게 감소되었지만 운동장 걷기 집단은 특별한 혈당치의 변화가 없었다. 따라서 본 연구는 유산소 운동으로 지속적으로 운동장을 걷는 운동보다 오르막 내리막 지형을 이용한 인터벌 운동과 저항성 근육운동의 복합 형태인 산림 걷기 운동이 내당능장애와 인슐린 비의존성 당뇨병 환자에 더 효과적인 것으로 제안한다.

Static and Dynamic Balance Comparison Between the Involved and Uninvolved Sides in Patients Who had Anterior Cruciate Ligament Reconstruction: One-year Follow-up Study

  • Kim, Jin-seong;Choi, Moon-young;Kong, Doo-hwan;Chung, Kyu-sung;Hwang, Ui-jae;Kwon, Oh-yun
    • 한국전문물리치료학회지
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    • 제27권4호
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    • pp.286-291
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    • 2020
  • Background: Anterior cruciate ligament reconstruction (ACLR) causes a reduction in the balance of the lower extremities. Static and dynamic balance were evaluated separately to confirm the decrease in balance in patients underwent ACLR. The commonly used methods include the Biodex Balance System (BBS) for static balance and the Y balance test (YBT) for dynamic balance. No study has evaluated whether the static and dynamic balance of the involved side recovers as much as the uninvolved side one year after ACLR. Objects: The purpose of this study was to investigate the recovery of static and dynamic balance between the involved and the uninvolved sides. Methods: The BBS (overall, anteroposterior index, and mediolateral index) and YBT (anterior, posterolateral, and posteromedial) of 58 patients underwent ACLR were measured one year postoperation. Both sides of the BBS and the YBT were compared using the paired t-test. Results: All the index of the BBS showed no difference between the involved and the uninvolved sides, while all the scores of the YBT showed a significant difference in both sides. The YBT anterior result was 54.64 ± 5.62 cm in the involved side and 56.90 ± 5.41 cm in the uninvolved side (p = 0.001). The YBT posterolateral results were 90.12 ± 10.51 cm and 92.34 ± 9.85 cm (p = 0.013). The YBT posteromedial results were 93.72 ± 8.84 cm and 96.14 ± 9.37 cm (p = 0.002). Conclusion: A year after ACLR, the static balance showed no difference, while the dynamic balance showed a significant difference in the involved and the uninvolved sides. The static balance of the involved side recovered as much as the uninvolved side, but the dynamic balance did not. Therefore, dynamic balance training should be considered in the rehabilitation program for patients underwent ACLR.

주의력결핍 과잉행동장애 아동의 약물치료가 운동협응력에 미치는 효과: 개방연구 (Effect of Pharmacological Treatment for Attention-Deficit Hyperactivity Disorder on Motor Coordination: Open Label Study)

  • 박기정;권국주;이세정;임연신;정유숙;김효원
    • Journal of the Korean Academy of Child and Adolescent Psychiatry
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    • 제28권4호
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    • pp.244-251
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    • 2017
  • Objectives: The objective of this study was to investigate the effect of pharmacological treatments for attention-deficit hyperactivity disorder (ADHD) on motor coordination, using the Developmental Coordination Disorder Questionnaire (DCDQ). Methods: The participants were recruited from April 2015 to November 2016 from the Department of Psychiatry of Asan Medical Center and were treated for 3 months with methylphenidate or atomoxetine. The illness severity at baseline and 3 months were scored using the ADHD Rating Scale (ARS), Clinical Global Impression-Severity Scale (CGI-S) and/or Clinical Global Impression-Improvement Scale (CGI-I). A total of 39 children with ADHD (age $8.0{\pm}1.4years$, 36 boys) completed the Advanced Test of Attention (ATA) and their parents completed the DCDQ at baseline and 3 months. The paired t-test, mixed between-within analysis of variance and correlation analysis were used. Results: The CGI-S (p<0.001), ARS (p<0.001), and fine motor/hand writing (p=0.005) on the DCDQ were significantly changed between pre-treatment and post-treatment. When the participants were divided into those who were suspected of having developmental coordination disorder (DCD) (n=23) and those who probably did not (n=16), the control during movement, fine motor/hand writing and general coordination scores on the DCDQ showed the main effects for group (p<0.001, p<0.001 and p<0.001, respectively). The fine motor/hand writing on the DCDQ has a significant main effect for time [F(1,37)=7.31, p=0.010, ${\eta}^2=0.405$] and the interaction effect between group and time was also significant [F(1,37)=4.63, p=0.038, ${\eta}^2=0.111$]. The baseline visual commission error on the ATA is significantly correlated with the changes in the DCDQ total scores (r=0.330, p=0.040). Conclusion: Our results provide preliminary evidence that pharmacological treatment for ADHD improves not only the core symptoms of ADHD, but also the motor coordination. Further studies are needed to confirm the effect of the pharmacological treatment for ADHD on the motor coordination.

향요법과 복부마사지의 복합처치가 중년 여성의 체 성분 변화에 미치는 영향 (The effect that the composition handling of aromatherapy and abdominal massage treatment reaches the middle-aged woman's body ingredient transformation)

  • 김연숙
    • 한국생활과학회지
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    • 제17권6호
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    • pp.1225-1236
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    • 2008
  • The purpose of this study is to determine the effect of aromatherapy, showing how the composition handling of aromatherapy and abdominal massage treatment reaches body ingredient transformation. The subjects for this research were total 18 middle-aged females in Seoul; aroma massage group of 7 females, aroma inhalation and water bathe group of 5 females, abdominal massage group of 6 females by jojoba oil without any medical effect. This clinic trial was held from July 1, 2008 to Aug.14, 2008. I held this clinic trial under the same condition after and before this clinic. A standard tape and OLYMPIA 3.5 of S hospital were used at the body measuring for subjects after and before clinic trials. I got Average and standard deviation by data analysis by SPSS Win. Ver.14.0. I did paired t-test for the comparison of before and after, and repeated measure ANOVA for between two groups or among three groups'. The verification was held Duncan Test. The results of this study were as follows: 1. Body mass quotient (F=2.86, p= .063) and Body region (F=1.34, p= .279) among three groups showed no meaningful difference, but weight meaningful difference and aroma massage group showed the greatest difference of body measure change quantity. 2. In change quantity of abdomen girth, Waist circumference and WHR, abdomen girth (F=4.56, p= .012) and Waist circumference (F=4.37, p= .031) showed a meaningful statistical difference. The result of subsequent inspection showed that there was a meaningful difference among three groups and aroma massage group was best. 3. In Cell quantity, Body region quantity and Muscle volume, Body region quantity (F=2.76, p= .182) and Muscle volume (F=3.12, p= .054) showed no difference, but Cell quantity (F=3.79, p= .040) showed a meaningful difference. In the comparison of three groups there was no difference, but aromatherapy group showed more change quantity than any other group. According to the result of this study, the composition handling of aromatherapy and body massage was effective in the decrease of Abdominal fatness and Waist circumference, Weight and the increase of Cell quantity. so I suggest that woman use this therapy in the program of obesity management for her health improvement.