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Brouwer, N.P. (author), Tabasi, A. (author), Moya-Esteban, A. (author), Sartori, M. (author), van Dijk, W. (author), Kingma, I. (author), van Dieen, J.H. (author)
The effectiveness of exoskeletons could be enhanced by incorporating low back muscle fatigue estimates in their control. The aim of the present study was to evaluate whether low back muscle fatigue can be estimated using the spectral content of trunk extensor muscle high-density EMG (HDEMG) by considering the motor unit action potential...
bookPart 2022
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Tabasi, A. (author), Lazzaroi, M. (author), Brouwer, N.P. (author), Kingma, I. (author), van Dijk, W. (author), de Looze, M.P. (author), Toxiri, S. (author), Ortiz, J. (author), van Dieen, J.H. (author)
Estimation of low-back load can be used to determine the assistance to be provided by an actuated back-support exoskeleton. To this end, an EMG-driven muscle model and a regression model can be implemented. The goal of the regression model is to reduce the number of required sensors for load estimation. Both models need to be calibrated. This...
bookPart 2022
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Kingma, B.R.M. (author), Koopmans, A.S. (author), de Looze, M.P. (author), van Dieen, J.H. (author)
To evaluate the biomechanical effect of exoskeletons during lifting, three studies were performed to compare spine compression during lifting without and with three exoskeletons (Laevo, Robo-Mate, SPEXOR). In these studies, participants (11, 10 and 10, respectively) lifted boxes (10, 15 and 10 kg, respectively) from ankle height. Spine...
bookPart 2022
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de Korte, J.Q. (author), Bongers, C.W.G. (author), Catoire, M. (author), Kingma, B.R.M. (author), Eijsvogel, T.M.H. (author)
Cooling vests can alleviate heat strain. We quantified the perceptual and physiological heat strain and assessed the effects of wearing a 21°C phase change material cooling vest on these measures during real-life work shifts of COVID-19 nurses wearing personal protective equipment (PPE). 17 nurses were monitored on two working days, consisting...
article 2021
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Kingma, B.R.M. (author), Roijendijk, L.M.M. (author), van Maanen, L. (author), van Rijn, H. (author), Beurden, M.H.P.H. (author)
This study investigates the hypotheses that during passive heat stress, the change in perception of time and change in accuracy of a timed decision task relate to changes in thermophysiological variables gastrointestinal temperature and heart rate (HR), as well as subjective measures of cognitive load and thermal perception. Young adult males (N...
article 2021
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Morris, N.B. (author), Pijl, J.F. (author), Morabito, M. (author), Messeri, A. (author), Levi, M. (author), Ioannou, L.G. (author), Ciuha, U. (author), Pogacar, T. (author), Kajfez Bogataj, L. (author), Kingma, B.R.M. (author), Casanueva, A. (author), Kotlarski, S. (author), Spirig, C. (author), Foter, J. (author), Havenith, G. (author), Sotto Mayor, T. (author), Flouris, A.D. (author), Nybo, L. (author)
Objectives: To provide perspectives from the HEAT-SHIELD project (www.heat-shield.eu): a multi-national, inter-sectoral, and cross-disciplinary initiative, incorporating twenty European research institutions, as well as occupational health and industrial partners, on solutions to combat negative health and productivity effects caused by working...
article 2021
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de Korte, J.Q. (author), Bongers, C.W.G. (author), Hopman, M.T.E. (author), Theunissen, L.P.J. (author), Jansen, K.M.B. (author), Kingma, B.R.M. (author), Ballak, S.B. (author), Maase, K. (author), Moen, M.H. (author), van Dijk, J.W. (author), Daanen, H.A.M. (author), Eijsvogel, T.M.H. (author)
The environmental conditions during the Tokyo Olympic and Paralympic Games are expected to be challenging, which increases the risk for participating athletes to develop heat-related illnesses and experience performance loss. To allow safe and optimal exercise performance of Dutch elite athletes, the Thermo Tokyo study aimed to determine...
article 2021
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Piil, J.F. (author), Kingma, B.R.M. (author), Morris, N.B. (author), Christiansen, L. (author), Ioannou, L.G. (author), Flouris, A.D. (author), Nybo, L. (author)
article 2021
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Kingma, B.R.M. (author), Steenhoff, H. (author), Toftum, J. (author), Daanen, H.A.M. (author), Folkerts, M.A. (author), Gerrett, N. (author), Gao, C. (author), Kuklane, K. (author), Petersson, J. (author), Halder, A. (author), Zuurbier, M. (author), Garland, S.W. (author), Nybo, L. (author)
This paper describes the functional development of the ClimApp tool (available for free on iOS and Android devices), which combines current and 24 h weather forecasting with individual information to offer personalised guidance related to thermal exposure. Heat and cold stress assessments are based on ISO standards and thermal models where...
article 2021
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Folkerts, M.A. (author), Boshuizen, A.W. (author), Gosselink, G. (author), Gerrett, N. (author), Daanen, H.A.M. (author), Gao, C. (author), Toftum, J. (author), Nybo, L. (author), Kingma, B.,R.M. (author)
Thermal models and indices integrated into a mobile application could provide relevant information regarding thermal stress and strain to the general public. The aim of the current paper is to validate such a mobile application, ClimApp, to the users needs in the heat. ClimApp combines weather data with personal user data, thermal models and...
article 2021
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Folkerts, M.A. (author), Gerrett, N. (author), Kingma, B.R.M. (author), Zuurbier, M. (author), Daanen, H.A.M. (author)
Young children are vulnerable to extreme temperatures due to their physiological and anatomical characteristics and behavioural dependability. The latter is a relatively unexplored area. Therefore, the current study investigated the skin temperature as a proxy of the thermal state of children and care providers in day-care centers, the ability...
article 2020
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Munsters, C.C.B.M. (author), Kingma, B.R.M. (author), van den Broek, J. (author), Sloet van Oldruitenborgh-Oosterbaan, M.M. (author)
In human sport science, the acute:chronic workload (ACWR) ratio is used to monitor an athlete's preparedness for competition and to assess injury risks. The aim of this study was to investigate whether acute and chronic workload calculations for external and internal loads (e.g. high-speed work distance and associated exertional effort) were...
article 2020
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Kingma, B.R.M. (author)
Exposure to challenging thermal environments such as jungle, desert, arctic, maritime, coastal shores and mountains can impose hazardous working conditions to NATO ground forces. This report describes a) an overview of models on how to estimate the thermal load from clothing and equipment, b) a methodology on how to incorporate the effects of...
report 2020
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Kingma, B.R.M. (author), van Baardewijk, J.U. (author)
Purpose: Here we propose a thermal model to predict the Wet Equivalent air Temperature (WET). WET is the effective air temperature for dry clothing which results in equal heat loss to exposure to the actual air temperature for wet clothing. Existing guideline IREQ-ISO-11079 provides insight on required insulation and safe exposure duration (DLE)...
conference paper 2020
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Koopman, A.S. (author), Kingma, I. (author), de Looze, M.P. (author), van Dieën, J.H. (author)
Low-back pain is the number one cause of disability in the world, with mechanical loading as one of the major risk factors. Exoskeletons have been introduced in the workplace to reduce low back loading. During static forward bending, exoskeletons have been shown to reduce back muscle activity by 10% to 40%. However, effects during dynamic...
article 2020
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Tabasi, A. (author), Kingma, I. (author), de Looze, M.P. (author), van Dijk, W. (author), Koopman, A.S. (author), van Dieën, J.H. (author)
Back support exoskeletons are designed to prevent work-related low-back pain by reducing mechanical loading. For actuated exoskeletons, support based on moments actively produced by the trunk muscles appears a viable approach. The moment can be estimated by a biomechanical model. However, one of the main challenges here is the feasibility of...
article 2020
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Koopman, A.S. (author), Naf, M. (author), Baltrusch, S.J. (author), Kingma, I. (author), Rodriguez-Guerrero, C. (author), Babic, J. (author), de Looze, M.P. (author), van Dieën, J.H. (author)
The number one cause of disability in the world is low-back pain, with mechanical loading as one of the major risk factors. To reduce mechanical loading, exoskeletons have been introduced in the workplace. Substantial reductions in back muscle activity were found when using the exoskeleton during static bending and manual materials handling....
article 2020
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Bongers, C.C. (author), de Korte, J.Q. (author), Catoire, A.C. (author), Greefhorst, J. (author), Hopman, M.T.E. (author), Kingma, B.R.M. (author), Eijsvogels, T.M.H. (author)
COVID-19 healthcare personnel (HCP) use personal protective equipment (PPE; ie, isolation gowns, eye protection, facemasks and respirators) to safely perform their medical duties. However, PPE creates a microenvironment around the skin due to a higher thermal resistance and lower water vapour permeability of the materials being used compared...
article 2020
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Klous, L. (author), Psikuta, A. (author), Gijsbertse, K. (author), Mol, D. (author), van Schaik, M. (author), Daanen, H.A.M. (author), Kingma, B.R.M. (author)
Purpose: Ventilated vests are developed to reduce thermal stress by enhancing convective and evaporative cooling from skin tissue underneath the vest. The purpose of this study is to investigate whether thermal stress is equal when a ventilated vest is worn compared to a no-vest situation with similar dry thermal resistance. Methods: Nine...
article 2020
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Schweiker, M. (author), Andréu, M. (author), Al-Atrash, F. (author), Al-Khatri, H. (author), Alprianti, R.R. (author), Alsaad, H. (author), Amin, R. (author), Ampatzi, E. (author), Arsano, A.Y. (author), Azar, E. (author), Bannazadeh, B. (author), Batagarawa, A. (author), Becker, S. (author), Buonocore, C. (author), Cao, B. (author), Choi, J.H. (author), Chun, C. (author), Daanen, H.A.M. (author), Damiati, S.A. (author), Daniel, L. (author), de Vecchi, R. (author), Dhaka, S. (author), Domínguez-Amarillo, S. (author), Dudkiewicz, E. (author), Edappilly, L.P. (author), Fernández-Agüera, J. (author), Folkerts, M. (author), Frijns, A. (author), Gaona, G. (author), Garg, V. (author), Gauthier, S. (author), Ghaffari Jabbari, S. (author), Harimi, D. (author), Hellwig, R.T. (author), Huebner, G.M. (author), Jin, Q. (author), Jowkar, M. (author), Kim, K. (author), King, N. (author), Kingma, B.R.M. (author), Koerniawan, M.D. (author), Kolarik, J. (author), Kumar, S. (author), Kwok, A. (author), Lamberts, R. (author), Laska, M. (author), Lee, M.C.J. (author), Lee, Y. (author), Lindermayr, V. (author), Mahaki, M. (author), Marcel-Okafor, U. (author), Marín-Restrepo, L. (author), Marquardsen, A. (author), Martellotta, F. (author), Mathur, J. (author), Mino-Rodriguez, I. (author), Montazami, A. (author), Mou, D. (author), Moujalled, B. (author), Nakajima, M. (author), Ng, E. (author), Okafor, M. (author), Olweny, M. (author), Ouyang, W. (author), Lígia Papst de Abreu, A. (author), Pérez-Fargallo, A. (author), Rajapaksha, I. (author), Ramos, G. (author), Rashid, S. (author), Reinhart, C.F. (author), Rivera, I.M. (author), Salmanzadeh, M. (author), Schakib-Ekbatan, K. (author), Schiavon, S. (author), Shooshtarian, S. (author), Shukuya, M. (author), Soebarto, V. (author), Suhendri, S. (author), Tahsildoost, M. (author), Tartarini, F. (author), Teli, D. (author), Tewari, P. (author), Thapa, S. (author), Trebilcock, M. (author), Trojan, J. (author), Tukur, R.B. (author), Voelker, C. (author), Yam, Y. (author), Yang, L. (author), Zapata-Lancaster, G. (author), Zhai, Y. (author), Zhu, Y. (author), Zomorodian, Z. (author)
People's subjective response to any thermal environment is commonly investigated by using rating scales describing the degree of thermal sensation, comfort, and acceptability. Subsequent analyses of results collected in this way rely on the assumption that specific distances between verbal anchors placed on the scale exist and that relationships...
article 2020
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