scholarly journals ANALISIS BEBAN KERJA OPERATOR RAIL MOUNTED GANTRY CRANE (RMGC) MENGGUNAKAN METODE CARDIOVASCULAR LOAD AND NASA-TLX (NATIONAL AERONAUTICS AND SPACE ADMINISTRATION TASK LOAD INDEX)

Jurnal Tekno ◽  
2021 ◽  
Vol 18 (2) ◽  
pp. 90-100
Author(s):  
Reni Laili
Keyword(s):  
Gantry Crane ◽  
Task Load ◽  
Nasa Tlx

PT. IPC TPK Area Palembang merupakan perusahaan yang bergerak dibidang penyediaan fasilitas terminal petikemas untuk perdagangan baik domestik maupun internasional. Tugas Operator RMGC (Rail Mounted Gantry Crane) yaitu membongkar dan memuat peti kemas. Aktivitas tersebut membutuhkan aspek Fisik dan juga Mental. Penilitian ini bertujuan untuk Menganalisis Beban Kerja Fisik dan Mental. Beban Kerja Fisik diukur berdasarkan Cardiovascular Load (CVL). Beban Kerja Mental dengan menggunakan metode NASA-TLX. Berdasarkan hasil analisis CVL, dari ke 16 operator ada 5 orang operator memiliki nilai presentase CVL >30%, nilai tertinggi dari presentase CVL adalah sebesar 36,04% yang mengindikasikan bahwa telah terjadi kelelahan kerja yang dialami oleh operator sedangkan jika dilihat dari perhitungan menggunakan metode NASA-TLX bahwa 9 orang (56,25%) operator memiliki beban kerja mental yang sangat tinggi dengan aspek yang paling mempengaruhi besaran beban kerja mental yaitu aspek Performansi Kerja (Performance) sebesar 26,95%. Sedangkan untuk nilai maksimal dari skor akhir Nasa-TLX sebesar 99,33 dan nilai minimal skor NASA TLX sebesar 46,66. Nilai batas yang dihitung yaitu BKA sebesar 110,69 dan BKB sebesar 43,90.

scholarly journals An eye-tracking based robotic scrub nurse: proof of concept

2021 ◽  
Author(s):  
Ahmed Ezzat ◽  
Alexandros Kogkas ◽  
Josephine Holt ◽  
Rudrik Thakkar ◽  
Ara Darzi ◽  
...  
Keyword(s):  
Eye Tracking ◽  
Technology Acceptance ◽  
Operating Time ◽  
Human Robot Interaction ◽  
Motion Sensors ◽  
Scrub Nurse ◽  
Task Load ◽  
Significant Difference ◽  
Nasa Tlx ◽  
Robotic Devices

Abstract Background Within surgery, assistive robotic devices (ARD) have reported improved patient outcomes. ARD can offer the surgical team a “third hand” to perform wider tasks and more degrees of motion in comparison with conventional laparoscopy. We test an eye-tracking based robotic scrub nurse (RSN) in a simulated operating room based on a novel real-time framework for theatre-wide 3D gaze localization in a mobile fashion. Methods Surgeons performed segmental resection of pig colon and handsewn end-to-end anastomosis while wearing eye-tracking glasses (ETG) assisted by distributed RGB-D motion sensors. To select instruments, surgeons (ST) fixed their gaze on a screen, initiating the RSN to pick up and transfer the item. Comparison was made between the task with the assistance of a human scrub nurse (HSNt) versus the task with the assistance of robotic and human scrub nurse (R&HSNt). Task load (NASA-TLX), technology acceptance (Van der Laan’s), metric data on performance and team communication were measured. Results Overall, 10 ST participated. NASA-TLX feedback for ST on HSNt vs R&HSNt usage revealed no significant difference in mental, physical or temporal demands and no change in task performance. ST reported significantly higher frustration score with R&HSNt. Van der Laan’s scores showed positive usefulness and satisfaction scores in using the RSN. No significant difference in operating time was observed. Conclusions We report initial findings of our eye-tracking based RSN. This enables mobile, unrestricted hands-free human–robot interaction intra-operatively. Importantly, this platform is deemed non-inferior to HSNt and accepted by ST and HSN test users.

scholarly journals ANALYSIS OF DETERMINATION THE NUMBER PERSONNEL BASED ON WORKLOAD ACCORDING TO JOB DESCRIPTION (STUDY CASE IN ACCOUNTING INSTITUTIONS)

JOURNAL ASRO ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 34
Author(s):  
Ahmadi Ahmadi ◽  
Wahyu Endriyanto ◽  
Benny Sukandari ◽  
Agus Makhrowi
Keyword(s):  
Mental Workload ◽  
Optimal Number ◽  
Physical Workload ◽  
Job Description ◽  
Workload Analysis ◽  
Task Load ◽  
Workload Measurement ◽  
Measurement Analysis ◽  
Nasa Tlx

The workload is highly related to efficient and effective human resource utilization in an organization to achieve organizational objectives, vision, and mission. Various methods are used to optimize the number of personnel in an organization so that each task can be completed quickly and precisely. Accounting Institutions are inseparable from problems regarding the lack of workload with the number of personnel working on it. The change of the Policy gives an impact on the change of Job Description and List of Personnel Arrangements of the organization. To overcome these issues, workload measurement, analysis can be used to determine the optimal amount of personnel required in their working units. This study uses a mental workload measurement so called NASA-TLX and physical workload measurement According to the applicable workload regulation that is in accordance with the Administrative Direction of Workload Analysis. Both methods are then carried out to be compared to each other. The results showed that the physical workload is required in the completion of tasks in each work unit. In addition, the determination of the optimal number of personnel using physical workload or appropriate tasks per task position based Job Description is performed. As a result, it is known that there is an excessive workload in the Sub Service Budget Cost work units with personal shortcomings. On the other hand, there is an excessive personnel number in Administrative Work, Sub Department of Finance Administration and Sub Department Financial Control. The overall conclusion of this study is a need for personnel reduction in a List of Personnel Arrangements currently known as Accounting Institutions to be 39 personnel instead of the existing 48 personnel.  Keywords: Workload, NASA-TLX (Task Load Index), assignments Per Task title, Number of Optimal personnel

scholarly journals ALLOCATION OF MARITIME TASK FORCE PERSONNEL UNIFIL CONTINGEN BASED ON ANALYSIS WORK LOADS

JOURNAL ASRO ◽  
2019 ◽  
Vol 10 (2) ◽  
pp. 11
Author(s):  
Ahmadi Ahmadi ◽  
Okol Sri Suharyo ◽  
Arimbo Arimbo ◽  
Aab Abdul Wahab
Keyword(s):  
Task Force ◽  
Mental Workload ◽  
Physical Workload ◽  
Index Number ◽  
Task Load ◽  
Workload Measurement ◽  
Physical Burden ◽  
Nasa Tlx ◽  
The Right

The workload of an organization is related to the efficient and effective utilization of human resources so that it can realize the vision, mission and objectives of the organization. Various methods are used to optimize the number of personnel in an organization, so that each task can be completed effectively and efficiently. KRI Diponegoro-365 personnel as the TNI Maritime Task Force, the Garuda Contingent can not be separated from the problems regarding the lack of conformity to workload with the allocation of the number of available personnel. To overcome this, an analysis of workload measurement is needed which can then be used for determine the allocation of the right number of personnel needed in each division. This study uses the measurement of NASA-TLX mental workload and physical workload according to TNI Roles. Both of these methods are then compared between mental and physical burden that occurs. From the results of the comparison, it was found that physical workload is needed in the completion of tasks in each division. After a comparison, then the determination of the allocation of the number of personnel will be carried out using the physical workload approach based on the description of the tasks in each division. The results of the calculation will then show the division that has excess or lack of personnel. The overall results obtained from this study can be concluded that the number of maritime task force personnel using the Diponegoro class KRI is appropriate, but the allocation of personnel in each division needs to adjust to the existing workload.  Keywords: Workload, NASA-TLX (Task Load Index), Number of Military Personnel

ANALISIS BEBAN KERJA MENTAL MAHASISWA DALAM MELAKSANAKAN PRAKTIKUM SELAMA MASA PANDEMI MENGGUNAKAN METODE NASA TLX

2021 ◽  
Vol 9 (01) ◽  
pp. 8-13
Author(s):  
Teguh Aprianto ◽  
Zakiya Muallifa Rahman
Keyword(s):  
Social Distancing ◽  
Task Load ◽  
Nasa Tlx

Pandemi telah mengubah semuanya tidak terkecuali Indonesia. Pemerintah kembali memperbarui data pandemi virus Corona (COVID-19) di Tanah Air. Tanggal 1 Juni 2021, sebanyak 4.824 tambahan kasus baru, 5.360 kasus sembuh dan 145 kasus meninggal akibat COVID-19. Pemerintah melaporkan sebanyak 4.824 kasus baru, sehingga total positif Corona di Indonesia menjadi 1.826.527 kasus. Ada pula penambahan kasus sembuh sebanyak 5.360, dengan demikian, total kasus sembuh dari Corona mencapai 1.674.479 kasus. Terlebih hal ini terjadi karena penyebaran COVID-19 terjadi melalui interaksi antar sesama yang menyebabkan perlunya social distancing untuk diterapkan di masyarakat. Adanya social distancing ini mengurangi aktivitas bersama dengan lainnya. Masalah kesehatan mental yang muncul akibat pandemi COVID-19 dapat berkembang menjadi masalah kesehatan yang dapat berlangsung lama dan berpotensi menimbulkan beban sosial yang berat. Kesehatan mental adalah aspek penting dalam mewujudkan kesehatan yang menyeluruh. Namun di sebagian besar negara berkembang, masalah kesehatan mental belum diprioritaskan apabila dibandingkan dengan penyakit menular. Hasil penelitian pendahuluan diperoleh dari data mahasiswa yang melakukan praktikum secara daring bahwa mahasiswa mengalami kelelahan dalam praktikum sebanyak 64,3%, peningkatan tingkat stress sebanyak 78,3%, berkurangnya konsentrasi sebanyak 71,3%, tekanan dalam praktikum sebanyak 66,7%, keluhan kesehatan sebanyak 38%, penurunan tingkat kewaspadaan 40,3%, rasa kantuk yang menggannggu sebanyak 72,9%, dan bekerja yang berlebihan 58,1%. Pengukuran beban kerja mental secara subjektif merupakan teknik pengukuran yang paling banyak digunakan karena mempunyai tingkat validitas yang tinggi dan bersifat langsung dibandingkan dengan pengukuran lain. The National Aeronautical and Space Administration Task Load Index (NASA TLX).

scholarly journals A-111 The Relationship between Bilingualism and Perceived Workload on the Symbol Digit Modalities Test in Traumatic Brain Injury Survivors

2020 ◽  
Vol 35 (6) ◽  
pp. 904-904
Author(s):  
Lopez-Hernandez D ◽  
Litvin P ◽  
Rugh-Fraser R ◽  
Cervantes R ◽  
Martinez F ◽  
...  
Keyword(s):  
Traumatic Brain Injury ◽  
Brain Injury ◽  
Language Use ◽  
Group Differences ◽  
Task Load ◽  
Language Groups ◽  
Perceived Workload ◽  
Nasa Tlx ◽  
Nasa Task Load Index ◽  
The Relationship

Abstract Objective We evaluated perceived workload (measured by the NASA Task Load Index; NASA-TLX) as related to Symbol Digit Modalities Test (SDMT) performances in monolingual and bilingual traumatic brain injury (TBI) survivors and healthy comparison participants (HC). Method The sample consisted of 28 TBI survivors (12 monolinguals & 16 bilinguals) and 50 HC (20 monolinguals & 30 bilinguals). SDMT written (SDMT-W) and SDMT oral (SDMT-O) were used to evaluate group differences. Results ANCOVA, controlling for age, revealed that the HC group outperformed the TBI group on SDMT-W, p = .001, and SDMT-O, p = .047. Furthermore, bilinguals outperformed monolinguals on SDMT-W, p = .017. On the NASA-TLX, an interaction emerged on temporal demand rating, p = .023, with TBI bilinguals reporting higher temporal demand on SDMT tasks compared to TBI monolinguals, while the HC monolingual participants reported higher temporal demands ratings compared to HC bilingual participants. Furthermore, monolingual participants showed higher levels of frustration with regard to the SDMT task compared to bilingual participants, p = .029. Conclusion Our data revealed TBI survivors underperformed on both SDMT trials compared to the HC participants. Also, bilingual participants demonstrated better SDMT-W performances compared to monolingual participants. Furthermore, our TBI bilingual sample reported themselves to be more rushed to complete the SDMT compared to monolingual TBI sample, but they were less frustrated. Meanwhile, our HC monolingual sample felt more rushed to complete the SDMT tasks compared to HC bilingual participants, but they were less frustrated. While we observed differences in workload ratings between language groups, it is unclear if language use, and/or other variables are driving these results.

Evaluation of attention, perception, and stress levels of clinical cardiovascular perfusionists during cardiac operations: a pilot study

Perfusion ◽  
2019 ◽  
Vol 34 (7) ◽  
pp. 544-551 ◽  
Author(s):  
Frank Merkle ◽  
Dino Kurtovic ◽  
Christoph Starck ◽  
Cynthia Pawelke ◽  
Sina Gierig ◽  
...  
Keyword(s):  
Steady State ◽  
Cardiopulmonary Bypass ◽  
Eye Tracking ◽  
Peak Stress ◽  
Data Management System ◽  
Technical Parameters ◽  
Self Evaluation ◽  
Task Load ◽  
Stress Levels ◽  
Nasa Tlx

Background: Performing cardiopulmonary bypass is a complex task which involves evaluating visual input from patient monitors and technical parameters displayed at the heart-lung machine console as well as reacting to other sensory input. Only few studies are available concerning the competency requirements for clinical cardiovascular perfusionists, including attention, perception, and coping with mental stress. This study aims at evaluating attention, perception, and stress levels of clinical cardiovascular perfusionists during cardiopulmonary bypass. Methods: Nine clinical cardiovascular perfusionists voluntarily offered to participate in the study. Participants were asked to wear Tobii 2 eye-tracking glasses throughout the procedures. Specific time points were analyzed (cardiopulmonary bypass on, initial cardioplegia delivery, steady state, cross-clamp off, and weaning from cardiopulmonary bypass). Data acquisition was supplemented by participants’ self-evaluation regarding their stress levels and by National Aeronautics and Space Administration Task Load Index (NASA TLX) questionnaires. Results: Seven datasets were sufficient to be evaluated. The clinical cardiovascular perfusionists’ professional experience ranged from 0.5 to 24 years. Evaluation of eye-tracking data revealed large variations in areas of interest hits, fixation, and dwell times. Across all phases, the venous reservoir, mean arterial pressure, arterial pump display, cardioplegia control, and data management system received the highest levels of attention. Pupil diameter measurements increased at start of cardiopulmonary bypass, cardioplegia delivery, and weaning off, but returned to base level during steady state. Clinical cardiovascular perfusionists’ self-evaluation showed that subjective stress level was highest at the start and the end of the procedure. NASA TLX questionnaires revealed medium-to-high mental and temporal workloads, but low physical workloads. Performance, effort, and frustration indices showed medium workloads. Conclusion: During cardiopulmonary bypass, perfusionists are subjected to stress. Peak stress levels were highest during start and end of cardiopulmonary bypass. Furthermore, visual attention and perception varied between the operative phases. Further studies are indicated to evaluate the design of heart-lung machines and stress-coping strategies during cardiopulmonary bypass.

A Bio-Cybernetic System for Adaptive Automation

1995 ◽  
Vol 39 (21) ◽  
pp. 1365-1369 ◽  
Author(s):  
Lawrence J. Prinzel ◽  
Mark W. Scerbo ◽  
Frederick G. Freeman ◽  
Peter J. Mikulka
Keyword(s):  
Closed Loop ◽  
Loop System ◽  
Closed Loop System ◽  
Single Task ◽  
Adaptive Automation ◽  
Task Load ◽  
Multiple Tasks ◽  
Cybernetic System ◽  
Nasa Tlx ◽  
Automation Technology

A bio-cybernetic, closed-loop system was validated for use in an adaptive automation environment. Subjects were asked to perform either a single task or multiple tasks from the Multi-Attribute Task Battery. EEG was continuously sampled while they performed the task(s) and an EEG index was derived (20 Beta/Alpha + Theta). The system switched between manual and automatic modes according to the level of operator engagement based upon the EEG index. The NASA-TLX was administered after each trial. The results of the study demonstrated that it was possible to moderate an operator's level of engagement through a closed-loop system driven by the operator's EEG. In addition, the system was sensitive to increases in task load. These findings show promise for designing adaptive automation technology around psychophysiological input.

scholarly journals Comparative Analysis of Mental Expenses for End-Level Students in Dealing with Online and Direct Learning with the NASA-TLX Method

2021 ◽  
Vol 12 (4) ◽  
pp. 764-770
Author(s):  
Fadilla Nur Afifah, Et. al.
Keyword(s):  
Online Learning ◽  
Physical Interaction ◽  
Mental Load ◽  
Learning Methods ◽  
Task Load ◽  
Study Programs ◽  
Physical Interactions ◽  
Nasa Tlx ◽  
Direct Learning ◽  
Learning Measurement

Limitation of direct physical interaction related to the Covid-19 pandemic has an impact on the education sector, where all learning activities are carried out online to limit physical interactions. Online learning methods are considered more flexible to do when compared to direct learning methods. This research was conducted to determine how much difference the mental load felt by final year students in online learning and direct learning. Measurement of a mental load was carried out using the National Aeronautics and Space Administration Task Load Index (NASA-TLX) method by distributing questionnaires containing six subscales of mental load measurement to final year students of four different study programs, including Management, Accounting, Informatics Engineering, and English. The six subscales used include Mental Demands, Physical Demands, Temporal Demands, Own Performance, Effort, and Frustration. Based on the results of the average calculation of the four sample groups, it shows that the mental load of online learning is 0.4% greater than direct learning, 81.3% and 80.9%, respectively.

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