Musculoskeletal Disorders, Work Stress, and Fatigue of Workers as the Impact of Work from Home Activities during the Covid-19 Pandemic

Introduction: This study aims to determine the relationship between musculoskeletal disorders, work stress and work fatigue in workers from home activities. Methods: This research conducted using cross sectional design. Population is all mother in Indonesia, and sample who participated in the study were 253 mother. Instrument research using Nordic Body Map questionnaire and data collection by online using a valid and reliable questionnaire. Pearson's Product Moment Correlation was use to analysis the correlation between variable. Results: Respondents aged ≤ 30 years (88.1%), mostly was female (72.3%), with a married marital status of 29.2%. Most of the education level is bachelor degree (45.1%) with the largest type of work being private employees as many as 147 people (58.1%). Work activities duration is mostly ≤ 8 hours per day (94.5%), the most used work tools are mobile phones (hand phone) as much as 80.6%. The favourite location chosen for activities is inside the house (42.3%). Conclusion: The results of the correlation test using Pearson's Product Moment Correlation showed that there was no relationship between musculoskeletal disorders and work stress. However, there was a relationship between musculoskeletal disorders and work fatigue. There was also a relationship between work stress and work fatigue. It is suggested that workers who work from home and using mobile devices to do their work in an ergonomic location (work station) to prevent musculoskeletal disorders and work fatigue. © 2022 UPM Press. All rights reserved.

Optimizing the Application of LCDS and PBL Models as an Effort to Improve Scientific Attitudes Students' in Learning Physics Online Mode During the COVID-19 Pandemic

Physics learning carried out during the COVID-19 pandemic, must be held online. Learning physics that needs to involve scientific activities, and fostering a scientific attitude is the main obstacle in online learning. Focusing on this research, it aims to apply electronic learning media with LCDS and problem-based learning models to be able to improve scientific attitudes in online learning during the COVID-19 pandemic. A qualitative approach is used in this study by applying Participatory Action Research with the Wadsworth model. The research was carried out at SMA Negeri 1 Boyolali during the COVID-19 pandemic, with students studying physics in class X. The contribution of physics teachers as key informants or as the main data source. Data were collected through observation, interviews, and self-assessment questionnaires. The triangulation technique was used to obtain valid data. The valid data were analyzed through the steps of collecting data, data condensation, data display, and conclusion drawing and verification following the Miles, Huberman, and Saldana model. The results of the case study research at SMA Negeri 1 Boyolali concluded that the application of LCDS learning media and PBL models in online physics learning can improve students' scientific attitudes, especially in the components of curiosity and objectivity. The use of these learning strategies can be optimal if students' needs are met and the infrastructure needed during learning supports. © 2023 American Institute of Physics Inc.. All rights reserved.

Optimization of TPACK-based Project Learning in Micro-teaching Courses in Physics Education Study Programs during the Pandemic

The COVID-19 pandemic requires educators to design meaningful learning strategies that utilize technology, one of which is by implementing a project-based learning model. Advances in 21st-century technology encourage the creation of the TPACK learning approach. Prospective physics teachers need to have TPACK abilities as a provision to become competent physics teachers. This study aims to describe the results of implementing project-based learning models in improving TPACK abilities in physics education study program students in the pandemic era. This research method is Participatory Action Research (PAR). The data collection techniques for this study were observation, interviews, and questionnaires. The results showed that this learning project resulted in a product in the form of a learning implementation plan document and a learning implementation video. The results of implementing the project-based learning model from this research are: 1) students' TPACK abilities are at the exploring level. Students can integrate physics learning with suitable technology. However, students lack the confidence to conclude the evaluation results because learning is not applied in real classes;2) students can use learning technology well;3) students can master the learning content well;4) students are not good at showing pedagogic abilities. Determination of learning strategies can affect students' TPACK abilities. Project-based learning strategies need to provide more stimulus so that TPACK's abilities can be improved, especially in their pedagogical abilities.