scholarly journals Hubungan Kemampuan Waktu Reaksi dan Fleksibilitas Atlet UKM Taekwondo UPI dengan Hasil Tendangan Dollyo-Chagi

2016 ◽  
Vol 1 (1) ◽  
pp. 12
Author(s):  
Muhammad Delpas Giandika ◽  
Nurlan Kusmaedi ◽  
Agus Rusdiana
Keyword(s):  
Reaction Time ◽  
Scoring System ◽  
Whole Body ◽  
Purposive Sampling

Waktu reaksi dan fleksibilitas merupakan komponen-komponen kondisi fisik penting bagi atlet Taekwondo untuk memproduksi sebuah tendangan, salah satunya tendangan dollyo-chagi. Penelitian ini bertujuan untuk mengetahui apakah terdapat hubungan antara kemampuan waktu reaksi dan fleksibilitas atlet Taekwondo dengan hasil tendangan dollyo-chagi. Penelitian ini menggunakan pendekatan deskriptif dengan metode korelasi. Populasi sekaligus sampel yang diambil datanya adalah atlet UKM Taekwondo UPI dengan total 10 orang dengan menggunakan teknik purposive sampling. Instrumen yang digunakan adalah tes whole body reaction time, sit and reach, dan tes tendangan dollyo-chagi dengan menggunakan Protektor Scoring System (PSS). Hasil penelitian ini menunjukan bahwa terdapat hubungan waktu reaksi dan fleksibiltas dengan hasil tendangan dollyo-chagi. Selain itu, banyak komponen kondisi fisik yang dapat membantu atau menjadi faktor lain dalam melakukan sebuah tendangan dalam cabang olahraga taekwondo. sehingga nantinya akan sangat membatu sekali dalam pengembangan prestasi atlet nanti dan menjadi bahan pertimbangan lebih kepada para pelatih

Postural Preparation to Making a Step: Is There a “Motor Program” for Postural Preparation?

2007 ◽  
Vol 23 (4) ◽  
pp. 261-274 ◽  
Author(s):  
Adriana M. Degani ◽  
Alessander Danna-Dos-Santos ◽  
Mark L. Latash
Keyword(s):  
Reaction Time ◽  
Simple Reaction Time ◽  
Center Of Pressure ◽  
Motor Program ◽  
Whole Body ◽  
Single Motor ◽  
Simple Reaction ◽  
Specific Manner ◽  
Young Subjects ◽  
Straight Ahead

We tested the hypothesis that a sequence of mechanical events occurs preceding a step that scales in time and magnitude as a whole in a task-specific manner, and is a reflection of a “motor program.” Young subjects made a step under three speed instructions and four tasks: stepping straight ahead, down a stair, up a stair, and over an obstacle. Larger center-of-pressure (COP) and force adjustments in the anteriorposterior direction and smaller COP and force adjustments in the mediolateral direction were seen during stepping forward and down a stair, as compared with the tasks of stepping up a stair and over an obstacle. These differences were accentuated during stepping under the simple reaction time instruction. These results speak against the hypothesis of a single motor program that would underlie postural preparation to stepping. They are more compatible with the reference configuration hypothesis of whole-body actions.

scholarly journals Checklist and Scoring System for the Assessment of Soft Tissue Preservation in CT Examinations of Human Mummies: Application to the Tyrolean Iceman

2017 ◽  
Vol 189 (12) ◽  
pp. 1152-1160
Author(s):  
Stephanie Panzer ◽  
Patrizia Pernter ◽  
Dario Piombino-Mascali ◽  
Rimantas Jankauskas ◽  
Stephanie Zesch ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Scoring System ◽  
Soft Tissues ◽  
Whole Body ◽  
Slice Thickness ◽  
Tissue Preservation ◽  
Soft Tissue Preservation ◽  
Whole Body Ct ◽  
Organ Systems ◽  
Tyrolean Iceman

Purpose Soft tissues make a skeleton into a mummy and they allow for a diagnosis beyond osteology. Following the approach of structured reporting in clinical radiology, a recently developed checklist was used to evaluate the soft tissue preservation status of the Tyrolean Iceman using computed tomography (CT). The purpose of this study was to apply the “Checklist and Scoring System for the Assessment of Soft Tissue Preservation in CT Examinations of Human Mummies” to the Tyrolean Iceman, and to compare the Iceman’s soft tissue preservation score to the scores calculated for other mummies. Materials and Methods A whole-body (CT) (SOMATOM Definition Flash, Siemens, Forchheim, Germany) consisting of five scans, performed in January 2013 in the Department of Radiodiagnostics, Central Hospital, Bolzano, was used (slice thickness 0.6 mm; kilovolt ranging from 80 to 140). For standardized evaluation the “CT Checklist and Scoring System for the Assessment of Soft Tissue Preservation in Human Mummies” was used. Results All checkpoints under category “A. Soft Tissues of Head and Musculoskeletal System” and more than half in category “B. Organs and Organ Systems” were observed. The scoring system accounted for a total score of 153 (out of 200). The comparison of the scores between the Iceman and three mummy collections from Vilnius, Lithuania, and Palermo, Sicily, as well as one Egyptian mummy resulted in overall higher soft tissue preservation scores for the Iceman. Conclusion Application of the checklist allowed for standardized assessment and documentation of the Iceman’s soft tissue preservation status. The scoring system allowed for a quantitative comparison between the Iceman and other mummies. The Iceman showed remarkable soft tissue preservation. Key Points  Citation Format

Comparison of a 12-Week Whole-Body Exergaming Program on Young Adults: Differentiation in Flexibility, Muscle Strength, Reaction Time, and Walking Speed Between Sexes

2018 ◽  
Vol 29 (7) ◽  
pp. 424-432 ◽  
Author(s):  
Yeşim Bakar ◽  
Alper Tuğral ◽  
Alp Özel ◽  
Yasin D. Altuntaş
Keyword(s):  
Reaction Time ◽  
Muscle Strength ◽  
Walking Speed ◽  
Whole Body ◽  
Video Gaming ◽  
Walk Test ◽  
Time Machine ◽  
Visual Reaction Time ◽  
Post Intervention ◽  
Visual Reaction

This study aimed to investigate the effects of exergaming on flexibility, muscle strength, reaction time, and walking speed of adults within sex differences. Fifty-four individuals participated in a 12-week exergaming program. Three 30-min sessions were conducted each week. Baseline and post-intervention assessments were done using the sit-and-reach and bend-over tests for flexibility, hand-held dynamometer for muscle strength, auditory and visual reaction time machine for reaction time, and 5-meter walk test for walking speed. There were no significant changes in the sit-and-reach, bend-over test, and auditory-visual reaction time for either gender ( p > .05) with the intervention. Walking speed and muscle strength improved after exergaming in both sexes ( p < .05). The study showed that the video gaming intervention led to significant and equal improvements in muscle strength and walking speed for both sexes; however, it had no impact on flexibility and auditory-visual reaction time.

scholarly journals Concussion History and Neuromechanical Responsiveness Asymmetry

2020 ◽  
Vol 55 (6) ◽  
pp. 594-600 ◽  
Author(s):  
Gary B. Wilkerson ◽  
Dustin C. Nabhan ◽  
Ryan T. Crane
Keyword(s):  
Reaction Time ◽  
Elite Athletes ◽  
Area Under The Curve ◽  
Musculoskeletal Injury ◽  
Whole Body ◽  
Lateral Asymmetry ◽  
Good Discrimination ◽  
Cross Sectional ◽  
Concussion History ◽  
Sensorimotor Processes

Context Detection of subtle changes in brain sensorimotor processes may enable clinicians to identify athletes who would derive the greatest benefit from interventions designed to reduce the risk for future injury and progressive neurologic or musculoskeletal dysfunction. Objective To develop a generalizable statistical model for identifying athletes who possess subtle alterations in sensorimotor processes that may be due to previous concussion. Design Cross-sectional study. Setting Residential Olympic Training Center sports medicine clinic. Patients or Other Participants A primary cohort of 35 elite athletes and a secondary cohort of 40 elite athletes who performed identical tests the preceding year. Intervention(s) Two upper extremity tests of visual-motor reaction time and 2 tests of whole-body reactive agility were administered. The whole-body tests required lateral or diagonal responses to virtual-reality targets, which provided measures of reaction time, speed, acceleration, and deceleration. Main Outcome Measure(s) Sport-related concussion history, which was reported by 54% (n = 19) of the athletes in the primary cohort and 45% (n = 18) of the athletes in the secondary cohort. Results Univariable analyses identified 12 strong predictors of sport-related concussion history, which we combined to create a composite metric with maximum predictive value. Composite lateral asymmetry for whole-body reactive movements and persisting effects of previous musculoskeletal injury yielded a logistic regression model with exceptionally good discrimination (area under the curve = 0.845) and calibration (predicted-observed probabilities within 7 subgroups: r = 0.959, P = .001). Application of the derived model to compatible data acquired from another cohort of elite athletes demonstrated very good discrimination (area under the curve = 0.772) and calibration (within 8 subgroups: r = 0.849, P = .008). Conclusions Asymmetry in whole-body reactive movement capabilities may be a manifestation of a subtle abnormality in the functional connectivity of brain networks that might be relevant to previously reported associations between sport-related concussion history and musculoskeletal injury occurrence.

Whole-body Magnetic Resonance Imaging in Inflammatory Arthritis: Systematic Literature Review and First Steps Toward Standardization and an OMERACT Scoring System

2017 ◽  
Vol 44 (11) ◽  
pp. 1699-1705 ◽  
Author(s):  
Mikkel Østergaard ◽  
Iris Eshed ◽  
Christian E. Althoff ◽  
Rene P. Poggenborg ◽  
Torsten Diekhoff ◽  
...  
Keyword(s):  
Magnetic Resonance Imaging ◽  
Magnetic Resonance ◽  
Literature Review ◽  
Working Group ◽  
Scoring System ◽  
Inflammatory Arthritis ◽  
Whole Body ◽  
Resonance Imaging ◽  
Body Magnetic Resonance Imaging ◽  
Mri Sequences

Objective.Whole-body magnetic resonance imaging (WB-MRI) is a relatively new technique that can enable assessment of the overall inflammatory status of people with arthritis, but standards for image acquisition, definitions of key pathologies, and a quantification system are required. Our aim was to perform a systematic literature review (SLR) and to develop consensus definitions of key pathologies, anatomical locations for assessment, a set of MRI sequences and imaging planes for the different body regions, and a preliminary scoring system for WB-MRI in inflammatory arthritis.Methods.An SLR was initially performed, searching for WB-MRI studies in arthritis, osteoarthritis, spondyloarthritis, or enthesitis. These results were presented to a meeting of the MRI in Arthritis Working Group together with an MR image review. Following this, preliminary standards for WB-MRI in inflammatory arthritides were developed with further iteration at the Working Group meetings at the Outcome Measures in Rheumatology (OMERACT) 2016.Results.The SLR identified 10 relevant original articles (7 cross-sectional and 3 longitudinal, mostly focusing on synovitis and/or enthesitis in spondyloarthritis, 4 with reproducibility data). The Working Group decided on inflammation in peripheral joints and entheses as primary focus areas, and then developed consensus MRI definitions for these pathologies, selected anatomical locations for assessment, agreed on a core set of MRI sequences and imaging planes for the different regions, and proposed a preliminary scoring system. It was decided to test and further develop the system by iterative multireader exercises.Conclusion.These first steps in developing an OMERACT WB-MRI scoring system for use in inflammatory arthritides offer a framework for further testing and refinement.

Combined effect of whole-body vibration and ambient lighting on human discomfort, heart rate, and reaction time

2018 ◽  
Vol 91 (5) ◽  
pp. 537-545 ◽  
Author(s):  
Mohammad Reza Monazzam ◽  
Esmaeil Shoja ◽  
Seyed Abolfazl Zakerian ◽  
Abbas Rahimi Foroushani ◽  
Mohsen Shoja ◽  
...  
Keyword(s):  
Heart Rate ◽  
Reaction Time ◽  
Whole Body Vibration ◽  
Combined Effect ◽  
Whole Body ◽  
Body Vibration ◽  
Ambient Lighting

scholarly journals ANALISIS FAKTOR SOSIAL DAN PSIKOLOGI SEBAGAI PENENTU KEPUASAN PENGUNJUNG TAMAN KOTA DAN TAMAN HUTAN KOTA DI DKI JAKARTA

2020 ◽  
Vol 25 (2) ◽  
pp. 156-166
Author(s):  
Reno Catelya Dira Oktavia ◽  
Hermanto Siregar ◽  
Tutut Sunarminto ◽  
Rachmad Hermawan
Keyword(s):  
Performance Analysis ◽  
Customer Satisfaction ◽  
Scoring System ◽  
Purposive Sampling ◽  
Satisfaction Index ◽  
Customer Satisfaction Index

Faktor sosial dan psikologi sangat berpengaruh terhadap tingkat kepuasan pengunjung selama berekreasi di taman kota dan taman hutan kota (THK) dalam wilayah DKI Jakarta. Penelitian ini bertujuan untuk menganalisis faktor sosial dan psikologi di dalam taman kota dan THK dalam kaitannya dengan tingkat kepuasan pengunjung. Data penelitian dikumpulkan dari responden dengan alat bantu kuesioner, menerapkan pola One Score One Indicator Scoring System. Jumlah responden sebanyak 600 orang dengan metode purposive sampling. Analisis data menggunakan metode importance performance analysis, customer satisfaction index, analisis statistik korelasi dan regresi. Hasil penelitian menunjukkan bahwa terdapat lima aspek sosial dan psikologi yang mempengaruhi tingkat kepuasan pengunjung. Aspek yang memiliki nilai kepentingan tinggi dan nilai kepuasan tinggi adalah aspek atmosfer berkegiatan, sedangkan yang bernilai rendah adalah aspek keamanan dan keselamatan. Analisis korelasi Spearman menunjukkan bahwa dari kelima aspek sosial dan psikologi tersebut satu sama lain memiliki tingkat asosiasi atau hubungan yang sangat dekat dengan nilai koefisien yang positif. Berdasarkan analisis regresi kepuasan pengunjung; aspek atmosfer berkegiatan, aspek aktivitas rekreasi, aspek kenyamanan berpengaruh secara signifikan, sedangkan aspek kontak sosial dan faktor keamanan dan keselamatan tidak berpengaruh signifikan terhadap kepuasan pengunjung.    Kata kunci: kepuasan pengunjung, psikologi, sosial, taman kota, taman kota hutan kota (THK)

scholarly journals A Three-Domain Scoring System to Customize the Risk of Relapse of Differentiated Thyroid Carcinoma

Cancers ◽  
2021 ◽  
Vol 13 (17) ◽  
pp. 4335
Author(s):  
Arnoldo Piccardo ◽  
Giacomo Siri ◽  
Martina Ugolini ◽  
Francesco Fiz ◽  
Matteo Puntoni ◽  
...  
Keyword(s):  
Scoring System ◽  
Progression Free Survival ◽  
Differentiated Thyroid Carcinoma ◽  
Risk Identification ◽  
Whole Body ◽  
American Thyroid Association ◽  
Free Survival ◽  
Validation Set ◽  
And Gender ◽  
Risk Categories

Purpose: the validation of a new scoring model considering the principal risk factors of differentiated thyroid cancer (DTC) relapse. Methods: we evaluated all DTC patients treated with thyroidectomy and radioactive iodine (RAI) therapy. Three domains were considered: the demographic domain (age and gender), the surgical domain (histology and the American Thyroid Association risk categories), and the RAI-related domain (pre-RAI thyroglobulin and post-therapeutic 131I whole-body scan). The progression-free survival was assessed. The patients’ sample was randomly split into a training and validation set. The three-domain score was calculated as the weighted sum of the levels of each significant factor, then scaled to an integer range (0–100) and, finally, stratified into terciles: mild risk 0–33, moderate risk 34–66, and severe risk 67–100. Results: 907 DTC patients were included. The RAI-related domain was the most relevant factor in the score calculation. The tercile stratification identified significantly different survival curves: patients within the two upper terciles showed approximately 6 to 30 times more progressive risk than patients at mild risk. Conclusion: we have validated a three-domain scoring system and the principal impact on this score is provided by the peri-RAI findings, whose prognostic role seems to be essential in risk identification.

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