• 제목/요약/키워드: Two-hand control

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The Psychological Effect of Hand and Arm Massage on Middle-Aged Women (손.팔 마사지가 중년 여성의 심리적 변인에 미치는 효과)

  • 장희정
    • Journal of Korean Academy of Nursing
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    • v.30 no.6
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    • pp.1389-1399
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    • 2000
  • Massage therapy is a traditional, alternative and nonphamacological means of promoting rest and relaxation. However, nursing intervention by massage for middle-aged women is rarely practiced by nurses. The purpose of this research was to examine the effects of the hand and arm massage as an independent nursing intervention tool for middle- aged women. The data used in this research were collected from forty-nine subjects using a nonequivalent control group non- synchronized design. Twenty-four persons for the experimental group and Twenty-five persons for the control group were selected from D city and C city from July 1997 to September 2000. Subjects' ages were between forty and fifty-six years old with mean the age of 45.6. Hand and arm massage developed by Cayce and Reilly was applied to the experimental group for a session of 15 minutes two or three times a week for four weeks. The instruments used for the measurement of the subjects' stress, anxiety, depression and the middle-life crisis were Langners's 22-item Self-rating Depression Scale, and Kim's Middle Life Crisis Scale(1988). These psychological factors were measured before and after the implementation of hand and arm massage. The data were analyzed with mean$\pm$s.d, percent, t-test, and a paired t-test. The results were summarized as follows; 1. Before the treatment, there were no significant differences between the two groups. 2. After the treatment, there were significant differences in the stress and the occurrence of mid life crisis between the two groups. The findings suggest that the use of the life crisis. Therefore, it is recommended that hand and arm massage be used as an independent nursing intervention tool for middle-aged women. For further research, is needed replication of this concept of research with different subjects in a larger population. Also, it is recommended to investigate the effects of massage with aroma therapy for the berefit of decreasing womens' stress level further.

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The Effect of Hand Massage on Discomfort in Patients Following Percutaneous Coronary Intervention (손마사지가 경피적관상동맥중재술 환자의 불편감에 미치는 효과)

  • Kim, Yeo-Jin;Chung, Seung-Hee;Suh, In-Sun
    • Korean Journal of Adult Nursing
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    • v.20 no.3
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    • pp.452-460
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    • 2008
  • Purpose: This study assessed the effectiveness of hand massage on reducing discomfort of patients undergoing percutaneous coronary intervention(PCI). Methods: The sample consisted of 62 patients admitted to an university affiliated hospital. The 30 patients in experimental group received hand massage developed by Snyder(1995) for 5 minutes on both hands and 32 patients in control group received the usual nursing intervention only. The outcome variable of discomfort was measured 10 minutes before and after the hand massage using Questionnaire and VAS. The data were collected from Feb. 5th to May 17th in 2007, and analysed through Chi-square, and t-test with SPSS WIN 12.0. Results: The level of discomfort measured with the questionnaire was decreased in experimental group, but increased in control group. This discomfort changes in two groups were significantly different(t=4.43, p<.001). The level of discomfort measured with VAS was also decreased in experimental group, but increased in control group. The changes were significant, too(t=5.62, p<.001). Conclusion: It was clear that hand massage could be a useful nursing intervention in reducing the discomfort of patients undergoing PCI.

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The study for Functional Independence Measure score by fine motor exercise of unaffected hand in the hemiplegic patients (편마비 환자에서 건측 수부의 적극적 미세 운동 제공을 통한 기능적 독립성의 증가에 관한 연구)

  • Chae, Jung-Byung
    • Journal of Korean Physical Therapy Science
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    • v.6 no.4
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    • pp.251-262
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    • 1999
  • This study is designed to evaluate the effects of aggressive fine motor exercise of unaffected hand in the hemiplegic patients. The 36 hemiplegic patients were classified into two groups: The experimental 18, who were treated by aggressive fine motor exercise in unaffected hand and the control, 18, who were treated by conventional exercise program. We evaluate the effects of aggressive fine motor exercise by Functional Independence Measure(FIM) and Jebsen Hand Function Test(JHFT) after 6 weeks program. After exercise program, the experimental group showed score change from $43.05{\pm}15.68$ to $58.05{\pm}17.12$ in FIM score and from $24.12{\pm}22.03$ to $55.44{\pm}21.50$ in Jebsen, and the control showed score change from $51.11{\pm}22.61$ to $57.50{\pm}23.66$ in FIM score and from $40.88{\pm}21.17$ to $52.77{\pm}19.42$ in Jebsen. The experimental group had significantly higher score in FIM and JHFT than that of the control group. The aggressive fine motor exercise is beneficial in unaffected hand in the hemiplegic patients.

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Navigation of a Mobile Robot Using the Hand Gesture Recognition

  • Kim, Il-Myung;Kim, Wan-Cheol;Yun, Jae-Mu;Jin, Tae-Seok;Lee, Jang-Myung
    • 제어로봇시스템학회:학술대회논문집
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    • 2001.10a
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    • pp.126.3-126
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    • 2001
  • A new method to govern the navigation of a mobile robot is proposed based on the following two procedures: one is to achieve vision information by using a 2 D-O-F camera as a communicating medium between a man and a mobile robot and the other is to analyze and to behave according to the recognized hand gesture commands. In the previous researches, mobile robots are passively to move through landmarks, beacons, etc. To incorporate various changes of situation, a new control system manages the dynamical navigation of a mobile robot. Moreover, without any generally used expensive equipments or complex algorithms for hand gesture recognition, a reliable hand gesture recognition system is efficiently implemented to convey the human commands to the mobile robot with a few constraints.

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Effect of Somatosensory Stimulation on Upper Limb in Sensory, Hand Function, Postural Control and ADLs within Sensorimotor Deficits after Stroke (뇌졸중 환자의 상지 체감각 자극을 통한 감각, 손 기능, 자세조절 및 일상생활수행력의 변화)

  • Song, Bo-Kyung
    • The Journal of Korean Physical Therapy
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    • v.24 no.5
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    • pp.291-299
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    • 2012
  • Purpose: This study examined the improved sensory, hand function, postural balance and activities of daily living (ADL) through somatosensory stimulation, such as the facilitation of functional reaching and tactile, proprioceptive stimulus of the upper limb (UL) and hand. Methods: Seventeen stroke patients having problems with motor and somatosensory deficits were selected in Bobath Memorial Hospital adult rehabilitation center. The patients were divided into two groups; the sensorimotor deficit group (SMDG) and motor deficit group (MDG). Somatosensory stimulation on the UL, physical therapy and occupational therapy were carried out three times a week over a six week these treatments were performed in both group period. To compare each group, the following assessment tools were used: such as tactile detection thresholds (TDT), two point discrimination on the affected side (TPDas), unaffected side (TPDus) stereognosis (ST) manual function test, hand function on the affected side (HFas) and unaffected side (HFus), Postural Assessment Scale for Stroke (PASS) and Korean version Modified Barthel Index (K-MBI). Results: In the SMDG, somatosensory stimulation on the UL was statistically important for TDT, TPDas, TPDus (except for the thener), ST, hand function on HFas, on HFus, PASS length of displacement with foam (LDFSEO), and K-MBI. In the MDG, somatosensory stimulation on the UL was important for TDT, TPDas, TPDus (except index finger) length of displacement with the eyes open, LDFSEO, HFas, HFus, PASS and K-MBI. In addition, there was a significant difference in the PASS between SMDG and MDG. Conclusion: Somatosensory stimulation on the UL affects the sensory, hand function, postural control and ADLs performance.

Wearable Band Sensor for Posture Recognition towards Prosthetic Control (의수 제어용 동작 인식을 위한 웨어러블 밴드 센서)

  • Lee, Seulah;Choi, Youngjin
    • The Journal of Korea Robotics Society
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    • v.13 no.4
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    • pp.265-271
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    • 2018
  • The recent prosthetic technologies pursue to control multi-DOFs (degrees-of-freedom) hand and wrist. However, challenges such as high cost, wear-ability, and motion intent recognition for feedback control still remain for the use in daily living activities. The paper proposes a multi-channel knit band sensor to worn easily for surface EMG-based prosthetic control. The knitted electrodes were fabricated with conductive yarn, and the band except the electrodes are knitted using non-conductive yarn which has moisture wicking property. Two types of the knit bands are fabricated such as sixteen-electrodes for eight-channels and thirty-two electrodes for sixteen-channels. In order to substantiate the performance of the biopotential signal acquisition, several experiments are conducted. Signal to noise ratio (SNR) value of the knit band sensor was 18.48 dB. According to various forearm motions including hand and wrist, sixteen-channels EMG signals could be clearly distinguishable. In addition, the pattern recognition performance to control myoelectric prosthesis was verified in that overall classification accuracy of the RMS (root mean squares) filtered EMG signals (97.84%) was higher than that of the raw EMG signals (87.06%).

Increasing Effect of Laser Stimulation to Koryo-Hand Acupuncture Points on Experimental Pressure Threshold (고려수지기맥 레이저 자극의 압통 역치상승 효과)

  • Park, Boe-Kyung;Yi, Jong-Eun;Song, Byung-Chul;Yi, Jin-Bock;Ahn, Duck-Hyun
    • Physical Therapy Korea
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    • v.5 no.2
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    • pp.1-14
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    • 1998
  • This study was conducted to examine the increasing effects of Ga-As-Al laser Koryo-hand acupuncture on experimental pressure threshold. Forty healthy subjects (female=20. male=20) aged 21 to 30 years were randomly assigned to two treatment groups with same ratio in sex. The subjects in the experimental group (n=20) received Ga-As-Al laser stimulation, and those in the control group (n=20) received sham stimulation on appropriate Koryo-hand acupuncture points M10 on the left hand which is reflex point of upper trapezius portion. Experimental pressure threshold at the contralateral upper trapezius was determined with a pressure algometer and Galvanic Skin Response (GSR) before and after treatment. The change of pressure threshold between pretreatment and posttreatment in the experimental group was greater than that in the control group (p<0.05). The result indicates that Ga-As-Al laser Koryo-hand acupuncture increases experimental pressure threshold and suggests that it is an effective noninvasive pain management technique.

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Constraint-Based Modeling of Human Hands (구속조건 기반의 손 모델)

  • Choi, Haeock;Song, Mankyun;Jun, Byoungmin
    • Journal of the Korea Computer Graphics Society
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    • v.3 no.1
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    • pp.1-7
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    • 1997
  • Technology for the realistic model and the motion control of human is applied to many areas of computer graphics, virtual reality and computer simulations. Human body is a multi-articular body. Generally, to create a human model and motions. articulated body models are generated and their motions are controlled based upon kinematics. The hand of the human consists of many small articulations and each articulations have a various degree of freedom. This paper presents a model of human hand which is based on the two kinds of constraints to control the motions of the hand realistically. To build a hand model, we experimented the anatomy of the human hand, and the diverse motions of the hand are tested.

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A study on an error recovery expert system in the advanced teleoperator system (지적 원격조작시스템의 일환으로서 에러회복 전문가 시스템에 관한 연구)

  • 이순요;염준규;오제상;이창민
    • Journal of the Ergonomics Society of Korea
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    • v.6 no.2
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    • pp.19-28
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    • 1987
  • If an error occurs in the automatic mode when the advanced teleoperator system performs a task in hostile environment, then the mode changes into the manual mode. The operation by program and the operation by hyman recover the error in the manual mode. The system resumew the automatic mode and continues the given task. In order to utilize the inverse kinematics as means of the operation by program in the manual mode, Lee and Nagamachi determined the end point of the robot trajectory planning which varied with the height of the task object recognized by a T.V monitor, solved the end point by the fuzzy set theory, and controlled the position of the robot hand by the inverse kinematics and the posture of the robot hand by the operation by human. But the operation by human did take a lot of task time because the position and the posture of the robot hand were separately controlled. To reduce the task time by human, this paper developes an error recovery expert system (ERES). The position of the robot hand is controlled by the inverse kinematics of the cartesian coordinate system to the end point which is deter- mined by the fuzzy set theory. The posture of the robot hand is controlled by the modulality of the robot hand's motion which is made by the posture of the task object. The knowledge base and the inference engine of the ERES is developed using the muLISP-86 language. The experimental results show that the average task time by human the ERES which was performed by the integration of the position and the posture control of the robot hand is shorter than that of the research, done by the preliminary experiment, which was performed by the separation of the position and the posture control of the robot hand. A further study is likely to research into an even more intelligent robot system control usint a superimposed display and digitizer which can present two-dimensional coordinate of the work space for the convenience of human interaction.

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The Effect of Virtual Reality Program Combining Transcranial Direct Current Stimulation on Depression, Hand Function, Cognition, and Daily Life Activities of Patients with Mild Cognitive Disorders (경두개직류전류자극을 결합한 가상현실프로그램이 경도인지장애환자의 우울, 손기능, 인지와 일상생활활동에 미치는 영향)

  • Ko-Un Kim;Bo-Ra Kim;Tae-Gyu An
    • Journal of The Korean Society of Integrative Medicine
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    • v.11 no.1
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    • pp.53-62
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    • 2023
  • Purpose : This study evaluated the effects of transcranial direct current stimulation and a virtual reality program on the depression, hand functions, cognitive function, and activities of daily living of patients with mild cognitive impairment by dividing 20 patients with mild cognitive impairment and depression. The 20 patients were divided into a treatment group (transcranial direct current stimulation + a virtual reality program) and a control group (placebo transcranial direct current stimulation + a placebo virtual reality program). Methods : This study allocated ten subjects to the treatment group and ten subjects to the control group. The treatment was given five times per week for six weeks (30 sessions), and each session was 30 minutes. This study screened depression by using SGDS-K, a short geriatric depression scale, to examine depression before and after treatment intervention. This study also used the box and block test, NCSE, and FIM to evaluate hand functions, cognitive function, and activities of daily living, respectively. Results : The results showed that depression significantly decreased, hand functions significantly increased, cognitive function significantly improved, and activities of daily living significantly increased after intervention in the treatment and control groups. The magnitude of changes in depression, hand functions, cognitive function, and activities of daily living was significantly different between the two groups after intervention (p>.05). Conclusion : The results showed that the application of transcranial direct current stimulation and a virtual reality program could improve cognitive function, hand functions, and activities of daily living by decreasing depression. Therefore, it can be concluded that the simultaneous application of transcranial direct current stimulation and a virtual reality program is an intervention method, which can be applied for decreasing depression, enhancing hand functions, improving cognitive function, and increasing activities of daily living in patients with mild cognitive impairment.