Using a psychophysical approach to identify a user's self selected thermal comfort on a task chair

Investigating thermal performance of different chairs at the user-seat interface by a temperature sensor array system while participants perform office work

“…The experimental results of regional thermal characteristics presented here are consistent with those of Kumar et al [11] who noted that right handed subjects tended to shift their body mass to the right side (their preferred location) when they took a seat for prolonged time (in our experiments, all participants were observed to be right handed). As such a disparity exists, it may be beneficial to consider the thermal imbalance on the contact surface when designing chairs and it might become appropriate to consider the development of left handed and right handed chairs.…”

“…All participants were no more than 30 years old, as the average age for administrative workers is 30 [11]. In addition, an appropriate speed of typing (> 30 WPM, Words Per Minute) was required because office workers usually rely on computers to facilitate their tasks and 37 -44 WPM is considered to be a normal typing speed (https://www.ratatype.com/learn/average-typing-speed/).…”

“…To avoid any disturbance from outside, the door of the research room was closed during the experiments. In accordance with some publications [10][11][12][13], subjects were asked to try to relax for at least 30 minutes after their arrival at the research lab. Once in the laboratory, the volunteers were M A N U S C R I P T…”

“…ACCEPTED MANUSCRIPT allowed to acclimatise (participants sat on non-experimental chairs during this time: these chairs were of the same make and type to the experimentally modified chairs) to the environment before taking part in the experiment [11].…”

Investigating thermal performance of different chairs at the user-seat interface by a temperature sensor array system while participants perform office work

“…The experimental results of regional thermal characteristics presented here are consistent with those of Kumar et al [11] who noted that right handed subjects tended to shift their body mass to the right side (their preferred location) when they took a seat for prolonged time (in our experiments, all participants were observed to be right handed). As such a disparity exists, it may be beneficial to consider the thermal imbalance on the contact surface when designing chairs and it might become appropriate to consider the development of left handed and right handed chairs.…”

“…All participants were no more than 30 years old, as the average age for administrative workers is 30 [11]. In addition, an appropriate speed of typing (> 30 WPM, Words Per Minute) was required because office workers usually rely on computers to facilitate their tasks and 37 -44 WPM is considered to be a normal typing speed (https://www.ratatype.com/learn/average-typing-speed/).…”

“…To avoid any disturbance from outside, the door of the research room was closed during the experiments. In accordance with some publications [10][11][12][13], subjects were asked to try to relax for at least 30 minutes after their arrival at the research lab. Once in the laboratory, the volunteers were M A N U S C R I P T…”

“…ACCEPTED MANUSCRIPT allowed to acclimatise (participants sat on non-experimental chairs during this time: these chairs were of the same make and type to the experimentally modified chairs) to the environment before taking part in the experiment [11].…”

Review of Measuring Microenvironmental Changes at the Body–Seat Interface and the Relationship between Object Measurement and Subjective Evaluation

“…At the first stage (within initial 15 min), temperature increases sharply and then the speed of thermal changes reduces, approaching to and attaining a plateau gradually [ 36 ]. Due to this finding [ 34 , 36 ], shorter trial intervals [ 13 , 28 , 29 , 30 , 32 , 34 , 39 ] can be applied to evaluate the thermal properties of different cushion materials. By combining some mathematical models and computer algorithms, thermal changes can also be predicted based on the measured information [ 36 ].…”

Investigating thermal performance of different chairs at the user-seat interface by a temperature sensor array system while participants perform office work

“…The experimental results of regional thermal characteristics presented here are consistent with those of Kumar et al [11] who noted that right handed subjects tended to shift their body mass to the right side (their preferred location) when they took a seat for prolonged time (in our experiments, all participants were observed to be right handed). As such a disparity exists, it may be beneficial to consider the thermal imbalance on the contact surface when designing chairs and it might become appropriate to consider the development of left handed and right handed chairs.…”

“…All participants were no more than 30 years old, as the average age for administrative workers is 30 [11]. In addition, an appropriate speed of typing (> 30 WPM, Words Per Minute) was required because office workers usually rely on computers to facilitate their tasks and 37 -44 WPM is considered to be a normal typing speed (https://www.ratatype.com/learn/average-typing-speed/).…”

“…To avoid any disturbance from outside, the door of the research room was closed during the experiments. In accordance with some publications [10][11][12][13], subjects were asked to try to relax for at least 30 minutes after their arrival at the research lab. Once in the laboratory, the volunteers were M A N U S C R I P T…”

“…ACCEPTED MANUSCRIPT allowed to acclimatise (participants sat on non-experimental chairs during this time: these chairs were of the same make and type to the experimentally modified chairs) to the environment before taking part in the experiment [11].…”

Review of Measuring Microenvironmental Changes at the Body–Seat Interface and the Relationship between Object Measurement and Subjective Evaluation

“…At the first stage (within initial 15 min), temperature increases sharply and then the speed of thermal changes reduces, approaching to and attaining a plateau gradually [ 36 ]. Due to this finding [ 34 , 36 ], shorter trial intervals [ 13 , 28 , 29 , 30 , 32 , 34 , 39 ] can be applied to evaluate the thermal properties of different cushion materials. By combining some mathematical models and computer algorithms, thermal changes can also be predicted based on the measured information [ 36 ].…”

Investigating thermal performance of different chairs at the user-seat interface by a temperature sensor array system while participants perform office work

“…The experimental results of regional thermal characteristics presented here are consistent with those of Kumar et al [11] who noted that right handed subjects tended to shift their body mass to the right side (their preferred location) when they took a seat for prolonged time (in our experiments, all participants were observed to be right handed). As such a disparity exists, it may be beneficial to consider the thermal imbalance on the contact surface when designing chairs and it might become appropriate to consider the development of left handed and right handed chairs.…”

“…All participants were no more than 30 years old, as the average age for administrative workers is 30 [11]. In addition, an appropriate speed of typing (> 30 WPM, Words Per Minute) was required because office workers usually rely on computers to facilitate their tasks and 37 -44 WPM is considered to be a normal typing speed (https://www.ratatype.com/learn/average-typing-speed/).…”

“…To avoid any disturbance from outside, the door of the research room was closed during the experiments. In accordance with some publications [10][11][12][13], subjects were asked to try to relax for at least 30 minutes after their arrival at the research lab. Once in the laboratory, the volunteers were M A N U S C R I P T…”

“…ACCEPTED MANUSCRIPT allowed to acclimatise (participants sat on non-experimental chairs during this time: these chairs were of the same make and type to the experimentally modified chairs) to the environment before taking part in the experiment [11].…”

Review of Measuring Microenvironmental Changes at the Body–Seat Interface and the Relationship between Object Measurement and Subjective Evaluation

“…At the first stage (within initial 15 min), temperature increases sharply and then the speed of thermal changes reduces, approaching to and attaining a plateau gradually [ 36 ]. Due to this finding [ 34 , 36 ], shorter trial intervals [ 13 , 28 , 29 , 30 , 32 , 34 , 39 ] can be applied to evaluate the thermal properties of different cushion materials. By combining some mathematical models and computer algorithms, thermal changes can also be predicted based on the measured information [ 36 ].…”