• Title/Summary/Keyword: Coordinative Control

Search Result 34, Processing Time 0.033 seconds

The Combination of PNF Patterns for Coordinative Locomotor Training (협응이동훈련을 위한 PNF 패턴의 결합)

  • Lim, Jae-Heon;Lee, Moon-Kyu;Kim, Tae-Yoon;Ko, Hyo-Eun
    • PNF and Movement
    • /
    • v.11 no.1
    • /
    • pp.17-25
    • /
    • 2013
  • Purpose : To identify importance of coordinative locomotor training, we reviewed the coordinative locomotor training using sprinter & skater with respect to motor control theory. Methods : We reviewed literatures related with sprinter & skater and coordination.. Results : The coordinative locomotor training is useful tool to improve interlimb coordination. A problem of interlimb coordination ability is to minimize the degree of freedoms during walking and to solve with context-condition variability and how to make a interlimb coordinative structures. A way of solving method is coordinative locomotor training using sprinter & skater in PNF. The coordinative locomotor training set to fit the gait steps can be applied with gait tasks and can be extended by applying the irradiation of the PNF. Conclusion : The coordinative locomotor training using sprinter & skater in PNF is a useful way method to improve interlimb coordination during walking.

A Study on Local Coordinative Reactive Power Control between STATCOM and Other Reactive Power Controllers for Voltage Stability Improvement at Substation (변전소 전압안정화를 위한 STATCOM과 기존 조상 설비간의 지역 무효전력 협조제어에 관한 연구)

  • Jeong, Ki-Seok;Chang, Byun-Hoon;Lee, Hyun-Chul;Lee, Geun-Joon;Baek, Young-Sik
    • The Transactions of The Korean Institute of Electrical Engineers
    • /
    • v.59 no.3
    • /
    • pp.525-530
    • /
    • 2010
  • Installation of FACTS(Flexible AC Transmission System) device can maximize utilization of existing power facilities and reliability of power system. STATCOM has excellent characteristics in operating cost, maintaining facilities, loss and so on. However, STATCOM has a disadvantage of facility cost over capacity. So it is effective to coordinate STATCOM and existing external bank(capacitor and reactor) and OLTC(On Load Tap Changer). This paper mainly proposes coordinative control method between STATCOM installed within substation and other reactive power resources including Shunt Reactors and Shunt Capacitors and OLTC for voltage stability improvement. The proposed coordinative control method is developed for the STATCOM of Mi-gum substation and the simulation results of EMTP/RV model show the effectiveness of the proposed method.

The Effect of Coordinative Locomotor Training Using Elastic Bands on the Flexibility and Body Alignment of Elementary School Right-Handed Baseball Players

  • Jeong, Mobeom
    • The Journal of Korean Physical Therapy
    • /
    • v.33 no.5
    • /
    • pp.217-223
    • /
    • 2021
  • Purpose: This study sought to identify the effects of coordinative locomotor training (CLT) using elastic bands on the flexibility and body alignment of right-handed baseball players in elementary school. Methods: The subjects were 20 instructed right-handed baseball players in elementary school. They were classified into the experimental group with 10 players (n=10) to be given coordinative locomotor training using elastic bands and the control group with 10 players (n=10). Flexibility was measured by the sit and reach exercise. Body alignment was measured using formetric 4D method to measure the trunk imbalance angle (TI), trunk torsion angle (TT), pelvic tilt angle (PTi), pelvic torsion angle (PTo), pelvic rotation angle (PR), kyphotic angle (Ky), and lordotic angle (Lo). Results: There was a significant increase in the flexibility within the experimental group (p<0.05). after the intervention. There was also a significant increase in the difference between the experimental group and the control group (p<0.05). There was a significant decrease in PR during body alignment in the experimental group after intervention (p<0.05). An analysis of the differences between groups showed a significant decrease in the PR of the experimental group compared to the control group (p<0.05). Conclusion: These findings show that coordinative locomotor training using elastic bands would be effective for enhancing the flexibility and pelvic rotation of elementary school right-handed baseball players.

The Effect of Coordinative Locomotor Training on Physical Factors for Falls in the Elderly with Mild Cognitive Impairment (협응이동훈련이 경도인지장애노인의 낙상물리요인에 미치는 영향)

  • Park, Mihee;Lee, Dong-Woo;Jeong, Mo-Beom
    • Journal of the Korean Society of Physical Medicine
    • /
    • v.15 no.2
    • /
    • pp.65-73
    • /
    • 2020
  • PURPOSE: This study examined the effects of coordinative locomotor training on the physical factors for falls in the elderly with mild cognitive impairment. METHODS: This study examined thirty subjects diagnosed with mild cognitive impairment by the radiologic findings, history, and physical examination. The subjects were assigned to a control group (n = 15) or experimental group (n = 15, coordinative locomotor training). The experimental group underwent coordinative locomotor training for four weeks, with training sessions two times per week. The control group was given a fall-prevention education for 60 minutes without coordinative locomotor training. To evaluate the physical factors for falls, the lower extremity strength and the Korean version of the Fullerton advanced balance scale and biorescue were measured for balance. These tests were conducted before and after training. RESULTS: Significant differences were observed between the two groups after the four weeks of coordinative locomotor training for the elderly with mild cognitive impairment the experimental group had a greater degree of improvement in the physical factors for falls. CONCLUSION: These findings suggest that coordinative locomotor training may have a functional effect on fall-prevention and the mobility of the elderly with mild cognitive impairment. In addition, it is expected to provide systematic and effective data that can be used as a fall prevention program for the elderly with mild cognitive impairment in each institution.

The Effects of Coordinative Locomotor Training with Elastic Bands on the Body Alignment of Elementary School Baseball Players (탄력밴드를 이용한 협응이동훈련이 초등학교 야구선수의 신체 정렬에 미치는 영향)

  • Park, Se-Ju;Park, Chi-Bok;Kim, Yong-Sung
    • PNF and Movement
    • /
    • v.17 no.3
    • /
    • pp.411-419
    • /
    • 2019
  • Purpose: This study determined the effects of elastic bands in coordinative locomotor training on the body alignment of elementary school baseball players. Methods: Thirty subjects were recruited for this study and separated into two groups: the coordinative locomotor training group with elastic bands (n=15) and the non-training control group (n=15) were five times a week for eight. The trunk inclination, trunk imbalance, kyphotic angle and lordotic angle were used to evaluate body alignment. Results: The experimental group showed significant improvements in trunk inclination, trunk imbalance, kyphotic angle and lordotic angle (p<0.05). Conclusion: Coordinative locomotor training impacted postural alignment in elementary school baseball players.

The Effects of a Coordinative Locomotor Training Program on the Functional Movement Screen Scores of Badminton Players (CLT 프로그램이 배드민턴 선수의 Functional Movement Screen 점수에 미치는 효과)

  • Kim, Tae-Yoon;Kim, Seok-Hwan
    • PNF and Movement
    • /
    • v.14 no.1
    • /
    • pp.23-32
    • /
    • 2016
  • Purpose: The purpose of this study was to determine the effects of a coordinative locomotor training program on the functional movement screen (FMS) scores of badminton players. Methods: The participants consisted of 31 badminton players who were randomly assigned to either an experimental group (n=15) or a control group (n=16), and engaged in exercise five times per week for six weeks. The experimental group engaged in coordinative locomotor training and the control group engaged in general exercise. An FMS kit (USA) was used to measure the following: FMS score, deep squat, hurdle step, in-line lunge, shoulder mobility, active straight leg raise, trunk stability push up, and rotary stability. Results: The FMS score, deep squat, hurdle step, in-line lunge, active straight leg raise, and trunk stability push up showed significant improvement in the experimental group (p<0.05). Conclusion: The coordinative locomotor training program was able to produce confirmation that functional movement screen scores change in the case of effective exercise interventions in badminton players.

Local Coordinative Reactive Power Control Method to Manage Voltage/Momentary Reactive Reserve (전압 및 순동무효예비력 확보를 위한 지역 변전소에서의 무효전력제어장치 협조방식 연구)

  • Lee, Geun-Joon;Yoon, Jong-Soo;Jang, Byung-Hoon;Jung, Sung-Won;Yoon, Sun-Ho;Lee, Hyun-Chul
    • Proceedings of the KIEE Conference
    • /
    • 2008.07a
    • /
    • pp.115-116
    • /
    • 2008
  • This paper discusses local reactive power control method of substation which has FACTS controller(STATCOM) and other reactive power controllers. Not only The relation between entral control and local control method was discussed, but also local STATCOM control methd was done. With this results, revised coordinative control method which can implement system voltage sensitivity characteristics of each control devices. Also, this method can give proper solution for system status which requires momentary reactive reserve. This method is expected to be applied to control multiple substation reactive power devices which is combined with SCADA system.

  • PDF

Effects of Coordinative Locomotor Training Program on Balance and Gait of Stroke Patients (협응적 이동 훈련 프로그램 적용이 편마비 환자의 균형과 보행능력에 미치는 효과)

  • Ko, Hyo-Eun;Jeon, Bo-Seon;Song, Hyun-Seung
    • PNF and Movement
    • /
    • v.15 no.3
    • /
    • pp.247-252
    • /
    • 2017
  • Purpose: This study sought to examine the effect of coordinative locomotor training (CLT) program on the balance and gait of stroke patients and to develop effective programs and training methods to improve the functions of such patients. Methods: Subjects included 29 patients with hemiplegia caused by stroke. The subjects were randomly divided into an experimental group (n=14) that participated in CLT program and a control group (n=15) that participated in general exercise therapy. The experimental group underwent CLT program, while the control group underwent general exercise therapy, for 30 minutes, 3 days per week for a 6-week period. timed up and go test (TUG), four square step test (FSST), figure-of-8-walk test (F8WT), and 10m walking test (10MWT) were conducted to evaluate changes in balance and gait. Results: After the intervention, significant differences (p<0.05) were seen in the TUG, FSST, F8WT, and 10MWT in both groups. The experimental group showed more significant improvement than the control group(p<0.05). Conclusion: The results from this study indicate that a CLT program is extremely effective for improving the balance and gait in stroke patients.

EMTP Simulation for the Dynamic Analysis of a STATCOM-Shunts-OLTC Coordination in Substation (변전소 조상 설비간의 협조 제어를 위한 EMTP 과도해석모형 개발)

  • Jeong, Ki-Seok;Baek, Young-Sik;Park, Ji-Ho;Chang, Byung-Hoon;Lee, Hyun-Chul;Lee, Geun-Joon
    • Proceedings of the KIEE Conference
    • /
    • 2009.07a
    • /
    • pp.237_238
    • /
    • 2009
  • This paper proposes coordinative control method between STATCOM installed within substation and other reactive power resources including Shunt Reactors and Shunt Capacitors and OLTC. Voltage/Reactive power control has various difficult aspects to control because of analysis and system dynamics error. This coordinative control method suggests practical algorithm regarding system voltage and reactive power status which is easy to implement in substation basis. In normal status, STATCOM-Shunts-OLTC are in operation. The proposed algorithm is tested and verified in EMTP/RV. And this is expected to be applied to control multiple reactive power devices combined with SCADA/EMS system.

  • PDF

The Effects of Coordinative Locomotor Training using Elastic Band on Dynamic Balance and Grip Strength in Elementary School Baseball Player

  • Lee, Han-Gyeol
    • Physical Therapy Rehabilitation Science
    • /
    • v.10 no.4
    • /
    • pp.414-420
    • /
    • 2021
  • Objective: The purpose of this study was to investigate the effects of coordinative locomotor training(CLT) using elastic bands on dynamic balance and grip strength for Elementary school baseball players and to provide correct posture guidance and reference on the prevention and rehabilitation program of sports damage and injury in the future. Design: Two groups pre-post randomized controlled design. Methods: Forty-six subjects were randomly divided in two groups;1) CLT using Elastic Band group(Experimental group, n=23), 2) Routine baseball training group(Control group, n=23). The intervention was conducted total 16 times for sixty minutes a day, 2 times a week, for 8 weeks. Evaluations of dynamic balance ability and grip strength were performed with all subjects before the commencement of training and 8 weeks after training. Results: Compared to the control group after training, the dynamic balance ability and dominant handgrip strength of the experimental group were significantly more improved(p<0.05). Conclusions: We confirmed that the effects of CLT using elastic bands on dynamic balance ability and grip strength in Elementary school baseball player. This study should be used for improving the quality of the Elementary school baseball player's training and would be contributed prevention and rehabilitation program of sports damage and injury.