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( Gyeong Ju Seo ),( Ji Won Park ),( Yonghyun Kwon ) 대한물리치료학회 2019 대한물리치료학회지 Vol.31 No.2
Purpose: This study examined the most effective exercise while performing shoulder abduction below ninety degrees. Methods: Thirty two healthy individuals (17 males, 15 females) participated and performed four exercises, 1) Posterior fly, 2) Prone row, 3) Modified prone cobra, and 4) External rotation in the prone position. Surface electromyography (sEMG) was used to measure the electrical activities for the lower, middle and upper fiber of trapezius and serratus anterior. Results: A significant difference in the muscle activities of the upper/middle/lower trapezius and serratus anterior was observed among the three different positions in terms of the PF (posterior fly), PR (prone row), and MPC (modified prone cobra) (p<0.05). In post-hoc analysis, the activities of the lower and upper trapezius were significantly higher than those of the upper trapezius and serratus anterior (p<0.05). In addition, in ERP (external rotation in prone), there was a significant difference in each activity of the muscles. Post-hoc results indicated that the upper trapezius showed greater EMG activity than the other three muscles. Conclusion: External rotation in the prone position revealed the highest activation of the lower trapezius compared to upper trapezius muscle activity. This may be particularly useful in isolating the lower trapezius in cases where excessive scapular elevation is noted. Therefore, the most effective lower trapezius exercise should be performed below ninety degrees of shoulder abduction.
Seo, Gyeong Ju,Park, Ji Won,Kwon, Yonghyun 대한물리치료학회 2019 대한물리치료학회지 Vol.31 No.2
Purpose: This study examined the most effective exercise while performing shoulder abduction below ninety degrees. Methods: Thirty two healthy individuals (17 males, 15 females) participated and performed four exercises, 1) Posterior fly, 2) Prone row, 3) Modified prone cobra, and 4) External rotation in the prone position. Surface electromyography (sEMG) was used to measure the electrical activities for the lower, middle and upper fiber of trapezius and serratus anterior. Results: A significant difference in the muscle activities of the upper/middle/lower trapezius and serratus anterior was observed among the three different positions in terms of the PF (posterior fly), PR (prone row), and MPC (modified prone cobra) (p<0.05). In post-hoc analysis, the activities of the lower and upper trapezius were significantly higher than those of the upper trapezius and serratus anterior (p<0.05). In addition, in ERP (external rotation in prone), there was a significant difference in each activity of the muscles. Post-hoc results indicated that the upper trapezius showed greater EMG activity than the other three muscles. Conclusion: External rotation in the prone position revealed the highest activation of the lower trapezius compared to upper trapezius muscle activity. This may be particularly useful in isolating the lower trapezius in cases where excessive scapular elevation is noted. Therefore, the most effective lower trapezius exercise should be performed below ninety degrees of shoulder abduction.
Seo, Jeongkuk,Kim, Won Seog,Kim, Jin Seok,Kim, Seok Jin,Lee, Jae Hoon,Hong, Jun Shik,Lee, Gyeong-Won,Oh, Sung Yong,Lee, Ji-Hyun,Yoon, Dok Hyun,Lee, Won-Sik,Kim, Hyo Jung,Kwak, Jae-Yong,Kang, Hye Jin,J Korean Society of Hematology; Korean Society of Bl 2017 Blood Research Vol.52 No.3
<P><B>Background</B></P><P>Rituximab plus cyclophosphamide, vincristine, and prednisone (R-CVP) is one of the effective chemotherapeutic regimens for patients with advanced stage marginal zone lymphoma (MZL). However, prognostic factors that affect the outcome of treatment for MZL are not well understood.</P><P><B>Methods</B></P><P>Between August 2006 and June 2013, patients with newly diagnosed stage III and IV MZL treated with R-CVP as a first-line therapy from 15 institutions were retrospectively analyzed. Patients' clinical and laboratory data at diagnosis were collected by review of medical records.</P><P><B>Results</B></P><P>A total of 80 patients were analyzed. Bone marrow involvement was observed in 30% cases. Twelve patients (15%) had nodal MZL, and 41.3% patients exhibited multiple mucosa-associated lymphoma tissue sites. Overall response rate was 91.3%, including 73.8% achieving complete response. Advanced MZL patients treated with R-CVP showed a 3-year progression-free survival (PFS) rate of 69.6%. Prognostic markers significantly affecting PFS in univariate analysis were platelet to lymphocyte ratio (PLR, <95 vs. ≥95, <I>P</I>=0.014), serum albumin (≤3.9 vs. >3.9 g/dL, <I>P</I>=0.008), and the International Prognostic Index (IPI) score (1 vs. 2–4, <I>P</I>=0.032). In multivariate analysis, only PLR (<95 vs. ≥95, HR 0.367, 95% CI, 0.139–0.971, <I>P</I>=0.043) was an independent risk factor for PFS.</P><P><B>Conclusion</B></P><P>PLR ≥95 at diagnosis is an independent prognostic marker for PFS in advanced stage MZL patients treated with R-CVP. This marker may aid clinicians in predicting the response to R-CVP chemotherapy in stage III and IV MZL patients.</P>
Motor-intentional Disorders in Right Hemisphere Stroke
Seo, Sang Won,Jung, Kihyo,You, Heecheon,Lee, Byung Hwa,Kim, Gyeong-Moon,Chung, Chin-Sang,Lee, Kwang Ho,Na, Duk L. Lippincott Williams Wilkins, Inc. 2009 COGNITIVE AND BEHAVIORAL NEUROLOGY Vol.22 No.4
OBJECTIVE: Damage to premotor and prefrontal regions results in motor-intentional disorders (MIDs) that disrupt initiation, maintenance, and termination of volitional movements. MIDs more frequently occur in right hemisphere rather than in left hemisphere injury. The aim of this study was to evaluate the prevalence of MIDs in patients with right hemisphere stroke and the factors that have influence on MIDs. METHODS: Subjects consisted of 25 consecutive patients with right hemisphere stroke and 12 normal controls. They underwent a series of experiments using force dynamometer along with bedside examination. RESULTS: It was identified that the force control test screened for MIDs with a higher sensitivity than bedside examinations: motor akinesia (38% vs. 11%), motor impersistence (50% vs. 10%), and motor perseveration (47% vs. 25%). The patients were significantly inferior to the controls in terms of force control capabilities in the 4 force control phases (1.6 to 16.3 times). The location and area of lesion and space of force production were not related to the severity of MIDs whereas the presence of neglect was related to the severity of MIDs. CONCLUSIONS: Our results suggest force dynamometer is a sensitive method to detect MIDs and the presence of neglect may influence the frequency of MIDs.
Kim, Gyeong Taek,Seo, Bo Hyeon,Lee, Won June,Park, Jeong,Kim, Min Kuk,Lee, Sang Min Elsevier Ltd 2017 Fuel Vol.194 No.-
<P><B>Abstract</B></P> <P>The effect of applying non-thermal plasma (NTP) (by adopting a dielectric barrier discharge) to a lean premixed model gas turbine combustor on flame stability and emissions of NOx and CO has been investigated experimentally by varying mixture nozzle exit velocity (<I>U</I> <SUB>0</SUB>) and equivalence ratio ( ∅ ) . The results showed that the existence of flame enhanced streamer intensity. The streamer intensity decreased as equivalence ratio deceased. Applying NTP to the combustor extended the lean flammable limit, and augmented the flame stability in a manner that the stable flame regime was extended to lower equivalence ratio and the regimes of lifted and oscillating flames are reduced. It was also found that it resulted in increase of NOx emission slightly (however, having a maximum of 10ppm) and reduction of CO emission significantly due to exalting complete burning. Nonetheless, with applying the NTP extending the lean flammable limit for the baseline case without it, an optimal range in ∅ existed, i.e. <30ppm for CO emission and ⩽10ppm for NOx at 0.600⩽ ∅ ⩽0.650. These results suggest that applying NTP to a gas turbine combustor should be a useful tool to simultaneously reduce both emissions of NOx and CO.</P> <P><B>Highlights</B></P> <P> <UL> <LI> Applying NTP to a model gas turbine combustor is an original work. </LI> <LI> Applying NTP extends the lean flammable limit appreciably and enhances flame stability. </LI> <LI> Some optimal flame conditions to simultaneously fulfill a stringent regulation for NOx and CO emissions under applying NTP exist. </LI> </UL> </P>