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342 results on '"Kim, Jun-Seok"'

1. Tcf7l2 in hepatocytes regulates de novo lipogenesis in diet-induced non-alcoholic fatty liver disease in mice

Author

Lee, Da Som, An, Tae Hyeon, Kim, Hyunmi, Jung, Eunsun, Kim, Gyeonghun, Oh, Seung Yeon, Kim, Jun Seok, Chun, Hye Jin, Jung, Jaeeun, Lee, Eun-Woo, Han, Baek-Soo, Han, Dai Hoon, Lee, Yong-Ho, Han, Tae-Su, Hur, Keun, Lee, Chul-Ho, Kim, Dae-Soo, Kim, Won Kon, Park, Jun Won, Koo, Seung-Hoi, Seong, Je Kyung, Lee, Sang Chul, Kim, Hail, Bae, Kwang-Hee, and Oh, Kyoung-Jin

Published
2023
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7. Effects of non-elastic taping on the kinematics of the lower extremities during overhead squat in subjects with dynamic knee valgus.

Author

Park, Won-Young, Bae, Dong-Yun, An, Da-In, Jung, Jong-Chul, Choi, Go-Eun, Yun, Hye-Lyeong, Shin, Yong-Il, Kim, Jun-Seok, and Kim, Soo-Yong

Subjects
LEG physiology, DORSIFLEXION, TAPING & strapping, KINEMATICS, CLINICAL trials, KNEE joint, CROSSOVER trials, ROTATIONAL motion, HIP joint, BODY movement, ANKLE joint, POSTURAL balance, RANGE of motion of joints
Abstract

BACKGROUD: The control of hip and ankle joint movement is important for patients with dynamic knee valgus (DKV), but few studies have used non-elastic taping (NET) to adjust alignment of the hip and ankle joints during overhead squat (OHS) simultaneously in patients with DKV. OBJECTIVE: We investigated changes in lower extremity joint kinematics and dynamic balance after the application of NET to the hip and ankle joints during OHS. METHODS: A total of 30 DKV patients participated in this study. We determined the kinematics of the hip, knee, and ankle joints, and scores on the lower quarter Y-balance test (YBT-LQ) during OHS under three conditions (non-taping, NET on hip and ankle, and sham taping). RESULTS: Hip internal rotation, knee valgus, and the ankle dorsiflexion angle were significantly lower with NET than with non- or sham taping. The hip flexion angle and scores on the YBT-LQ were significantly greater with NET than with non- or sham taping. CONCLUSIONS: The application of NET while performing a OHS is a useful method for correcting lower extremity alignment in patients with DKV, however, application of NET on the ankle should be considered. [ABSTRACT FROM AUTHOR]

Published
2024
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11. Reliability of scapular position and periscapular muscle strength tests in healthy subjects with forward neck and rounded shoulder posture.

Author

Kim, Tae-Gyu, Kim, Jun-Seok, Zhang, Haimin, and Kim, Soo-Yong

Subjects
*SHOULDER physiology, *HEAD physiology, *NECK physiology, *TRAPEZIUS muscle physiology, *HEALTH status indicators, *BIOPHYSICS, *FUNCTIONAL assessment, *MUSCLE strength testing, *SERRATUS anterior muscles, *DESCRIPTIVE statistics, *SCAPULA, *MUSCLE strength, *INTRACLASS correlation, *STATISTICAL reliability, *POSTURE, *EXERCISE tests, *BODY movement, *RELIABILITY (Personality trait), *SCIENTIFIC apparatus & instruments, *MUSCLE contraction, *POSTURAL balance, *RANGE of motion of joints, *ISOKINETIC exercise
Abstract

BACKGROUND: People with forward head posture (FHP) and rounded shoulder posture (RSP) may experience shifts in scapular position and alterations in the strength of the muscles surrounding the scapula. Therefore, a reliable scapula position and scapula muscle strength test are required to identified scapula problem and provided appropriate intervention programs. OBJECTIVE: This study aimed to determine the reliability of scapular position measurements obtained using a modified digital inclinometer and palpation meter, as well as muscle strength using a hand-held dynamometer (HHD) in individuals with FHP and RSP. METHODS: Thirty healthy subjects underwent scapular position tests (upward rotation, anterior tilt, depression, and protraction) and strength tests of periscapular muscles (serratus anterior, upper trapezius, middle trapezius, and lower trapezius) on both the dominant and non-dominant sides. The reliability of the measurements was confirmed by computing the intraclass correlation coefficient (ICC), standard error of measurement (SEM), and minimal clinically important difference (MCID). Test and re-tests were conducted over a period of one week and actual values for each measurement were also obtained and assessed. RESULTS: The ICC ranged from 0.802 to 0.935 for the scapular position tests and from 0.808 to 0.949 for muscle strength tests on the dominant and non-dominant sides. For scapular position tests, SEM values ranged from 0.3 cm to 0.6 cm (protraction and depression), from 1.0∘ to 1.7∘ (upward rotation and anterior tilt) and MCID values ranged from 0.7 cm to 1.6 cm (protraction and depression), from 2.8∘ to 4.7∘ (upward rotation and anterior tilt). Regarding muscle strength tests, SEM and MCID values were in the range 14.4N–27.3N and 39.9N–75.7N, respectively. CONCLUSIONS: Scapular position and periscapular muscle strength can be reproducibly measured in healthy subjects individuals with FHP and RSP. These instruments can hence be recommended for evaluating these functional traits in subjects with FHP and RSP. [ABSTRACT FROM AUTHOR]

Published
2024
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39. Comparison of Shoulder Protraction Strength and Electromyography Activity of Serratus Anterior and Pectoralis Major in Subjects With or Without a Winged Scapula.

Author

Kim, Jun-Seok, Kim, Moon-Hwan, Ahn, Duk-Hyun, and Oh, Jae-Seop

Subjects
*ELECTROMYOGRAPHY, *EXERCISE, *LABORATORIES, *MUSCLE contraction, *MUSCLE strength, *POSTURE, *RESEARCH funding, *SCAPULA, *SHOULDER, *T-test (Statistics), *TRAPEZIUS muscle, *STATISTICAL power analysis, *DELTOID muscles, *PECTORALIS muscle, *CROSS-sectional method, *DATA analysis software, *DESCRIPTIVE statistics, *SERRATUS anterior muscles
Abstract

Context: A winged scapula (WS) is associated with faulty posture caused by weakness of the serratus anterior (SA), which mainly acts as a scapular stabilizer muscle. It is important to accurately assess and train the SA muscle with a focus on scapula stabilizers during musculoskeletal rehabilitation of individuals with a WS. Objective: The authors examined muscle activity in the SA and pectoralis major (PM), upper trapezius (UT), and anterior deltoid (AD) as well as shoulder protraction strength during isometric shoulder protraction in individuals with and without a WS. Design: Cross-sectional study. Setting: A clinical biomechanics laboratory. Participants: In total, 27 males with no shoulder, neck, or upper-extremity pain participated. Main Outcome Measures: Isometric shoulder protraction strength was collected and surface electromyography used to measure the activity of the SA, PM, UT, and AD muscles and selective SA activity ratio to other shoulder muscles. Results: Electromyography activity of the SA muscle and shoulder protraction strength were significantly lower in individuals with a WS compared with the non-WS group (P <.05). In contrast, PM muscle activity and the PM-to-SA, UT-to-SA, and AD-to-SA ratios were significantly greater in individuals with a WS than in individuals without winging (P <.05). Conclusions: Isometric shoulder protraction for measuring SA strength in individuals with a WS should focus on isolated muscle activity of the SA, and SA strengthening exercises are important for individuals with a WS. [ABSTRACT FROM AUTHOR]

Published
2019
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