Article
Biology
Chenhao Yu, Joel Martin Sacris, Yan Gai, Chi Hou Lei
Summary: This study presents a realistic three-dimensional model that accurately captures the deformation and stress distribution of sitting on an air-cell-based cushion. It resolves several shortcomings in previous models and allows for optimization of cushion design and operating conditions.
COMPUTERS IN BIOLOGY AND MEDICINE
(2022)
Article
Chemistry, Multidisciplinary
Akinari Hirao, Shimpei Naito, Nobutoshi Yamazaki
Summary: Research on seating comfort suggests that the pressure distribution should be widely distributed and not exceed a certain threshold in terms of tissue compression. However, the ideal pressure distribution has not been defined in previous studies. There are individual differences in the comfortable pressure distribution, possibly due to variations in body shape and sitting posture. This study analyzes the pressure sensitivity and distribution to determine that a comfortable pressure distribution should be uniformly distributed within a certain range of minimum pressure.
APPLIED SCIENCES-BASEL
(2022)
Review
Biology
Jia-Qi Li, Wai-Hang Kwong, Yuk-Lam Chan, Masato Kawabata
Summary: This systematic review compares the differences in intradiscal pressure (IDP) between sitting and standing postures. The results show that sitting causes higher loads on the lumbar spine than standing, but recent studies do not support this conclusion. There is no difference in IDP between both postures for patients with degenerated discs.
Article
Chemistry, Analytical
Qilong Wan, Haiming Zhao, Jie Li, Peng Xu
Summary: This paper introduces a sitting posture recognition algorithm based on hip templates which shows good adaptability to different rotation angles, effective feature extraction for classifying four types of sitting postures with a classification accuracy of up to 89.6%.
Article
Engineering, Industrial
Pascal Madeleine, Ramtin Z. Marandi, Kristoffer L. Norheim, Jacob B. Andersen, Afshin Samani
Summary: There were significant differences in the dynamics of sitting between older and younger computer users, with the older group showing larger range, velocity, and area of COP displacement in the AP direction, as well as differences in SD and SaEn.
APPLIED ERGONOMICS
(2021)
Article
Health Care Sciences & Services
Kuan Wang, Yufang Chen, Shangjun Huang, Lejun Wang, Wenxin Niu
Summary: This study investigated the influence of subcutaneous fat thickness on the interface pressure and load distribution of buttock of seated humans. The results showed that fat tissue in the buttock could reduce the contact pressure when sitting on a rigid seat, and that contact pressure solely could not be used to estimate the internal tissue stress of seated buttock, especially in subjects with thicker fat tissue.
JOURNAL OF HEALTHCARE ENGINEERING
(2021)
Article
Engineering, Biomedical
Zhe Fan, Xing Hu, Wen-Ming Chen, Da-Wei Zhang, Xin Ma
Summary: Abnormal sitting postures can lead to various health issues for adolescents, making the research on intelligent monitoring technology for identifying irregular sitting postures significant. This paper proposes a method based on hip pressure analysis to accurately recognize sitting postures. By using a pressure sensor array and deep convolutional neural network, the method achieves high accuracy and proves its effectiveness over computer vision methods.
BIOMEDICAL SIGNAL PROCESSING AND CONTROL
(2022)
Article
Cardiac & Cardiovascular Systems
Bethany Barone Gibbs, Matthew F. Muldoon, Molly B. Conroy, Joshua L. Paley, Daichi Shimbo, Subashan Perera
Summary: Daytime blood pressure measurements are higher after standing or moving compared to sitting. Individual variations in activity patterns may influence the diagnosis of high blood pressure using daytime blood pressure readings.
JOURNAL OF THE AMERICAN HEART ASSOCIATION
(2023)
Article
Orthopedics
Qing Xia, Xinpeng Chen, Huanxia Wei, Guoliang Zhou, Jingmei Dong
Summary: This study compares static sitting posture control in idiopathic scoliosis freshmen with normal peers during writing tasks to reveal possible differences in posture stability between them.
JOURNAL OF ORTHOPAEDIC SURGERY AND RESEARCH
(2023)
Article
Surgery
Jill Chen, Jian-An Chen, Chien-Chung Chen, Yi-Hsuan Yang, Yonas Eshetu Teklu, Li-Ren Chang, Kuan-Ming Feng
Summary: This study presented the experience of using large whole-buttock fasciocutaneous flaps for surgical reconstruction of buttock pressure injuries. The results showed that this approach is effective for selected patients.
ANNALS OF PLASTIC SURGERY
(2023)
Article
Chemistry, Analytical
Jawad Ahmad, Johan Siden, Henrik Andersson
Summary: This paper presents a posture recognition system for wheelchair users to detect irregular sitting postures and prevent health issues. The system achieves a posture classification accuracy of up to 99.03% using various machine learning algorithms. It provides real-time pressure distribution maps and allows sharing of data with healthcare professionals.
Article
Engineering, Electrical & Electronic
Arif Reza Anwary, Deniz Cetinkaya, Michael Vassallo, Hamid Bouchachia
Summary: Prolonged asymmetrical sitting can worsen musculoskeletal back pain and spinal deformities. Current posture assessment methods are subjective and costly, but the Smart-Cover system offers a user-friendly and inexpensive solution for real-time posture evaluation using a Sitting Pressure Sensor and cloud connectivity.
SENSORS AND ACTUATORS A-PHYSICAL
(2021)
Article
Dentistry, Oral Surgery & Medicine
Mineka Yoshikawa, Kanako Nagakawa, Reiko Tanaka, Kanako Yamawaki, Takahiro Mori, Aya Hiraoka, Chiaki Higa, Yuichi Nishikawa, Mitsuyoshi Yoshida, Kazuhiro Tsuga
Summary: The study revealed that different postures during eating in bed and wheelchair can affect tongue pressure, which in turn affects swallowing function.
JOURNAL OF DENTAL SCIENCES
(2021)
Article
Multidisciplinary Sciences
Pascaline Lantoine, Mathieu Lecocq, Clement Bougard, Erick Dousset, Tanguy Marqueste, Christophe Bourdin, Jean-Marc Allegre, Laurent Bauvineau, Serge Mesure
Summary: This study evaluated the effects of three different seats on driver's sitting behavior and discomfort during prolonged driving under real conditions. Soft seats (S-1 & S-3) were found to limit local perceived discomfort, especially in areas like the buttocks, thighs, neck, and upper back. Automotive manufacturers could enhance seat design by combining a soft seat cushion, firm backrest, and suspension system for reduced driver discomfort.
Article
Chemistry, Analytical
Wenyu Cai, Dongyang Zhao, Meiyan Zhang, Yinan Xu, Zhu Li
Summary: The paper presents a sitting posture recognition system using a pressure sensor array to monitor and classify correct sitting postures, with experiments showing its superiority over traditional algorithms.