Why is archelis good
for your legs and back？
Ideal standing posture
 santding posture |  sitting posture |  Archelis | |
|---|---|---|---|
| load on feet | |||
| load on the lower back | |||
| Mobility | |||
| features | In addition to the fatigue caused by standing, the concentration of the weight load on the lower body causes pain in the soles of the feet. | Sitting on a chair rounds your back and crushes your pelvis, putting a strain on your lower back and causing stiff neck and shoulders. | When Archelis is worn, the pelvis stands up, the S-shape of the spine is maintained, the trunk is stabilized, and an ideal standing posture is maintained. |
Distribute your weight and support
In a standing posture, the weight load is concentrated on the soles of the feet, and fatigue accumulates throughout the feet.
Archelis distributes weight evenly across the thighs and shins, reducing stress on the soles of the feet by up to 50%. Relieves chronic pain and fatigue caused by prolonged standing.
Offloading verification data
In a demonstration experiment conducted by the Ministry of Health, Labor and Welfare, the effect of reducing the burden of Archelis was recognized. It was found that the muscle activity of the erector spinae and calf gastrocnemius muscles during standing work was reduced by up to 41% while wearing Archelis.
In addition, musculoskeletal analysis using a human model showed that Archelis reduced the load on the lower back by up to 33%. From both experiments and simulations, it was clarified that the wearing of Archelis reduces the physical burden of standing work.
Research Paper
■Journal
November 2018 Journal of Japan Society of Computer Aided Surgery 20(3):121-125
■Title
Clinical Use of a Wearable Lower Limb Support Device for Surgeries Involving Long Periods of Standing
■Authors
Hiroshi Kawahira 1, Ryoichi Nakamura 2, Yoshihiro Shimomura 3, Takashi Oshiro 4, Shinichi Okazumida 5
1 Medical Simulation Center, Jichi Medical University
2 Center for Frontier Medical Engineering, Chiba University
3 Division of Design Science, Graduate School of Engineering, Chiba University
4 Department of Surgery, Toho University Medical Center Sakura Hospital
■Link
https://doi.org/10.5759/jscas.20.121
■Journal
Asian Journal of Endoscopic Surgery Volume14, Issue1 January 2021 Pages 144-148
■Title
A wearable lower extremity support for laparoscopic surgeons: A pilot study
■Authors
Hiroshi Kawahira, Ryoichi Nakamura, Yoshihiro Shimomura, Takashi Oshiro, Shinichi Okazumi, Alan K. Lefor
■Link
https://doi.org/10.1111/ases.12812
■Journal
VIDEOGIE Volume 4, No. 11 : 2019
■Title
Sit-stand endoscopic workstations equipped with a wearable chair
■Authors
Ippei Matsuzaki 1, Takeshi Ebara 2, Mafu Tsunemi 3, Mitsuhiro Fujishiro 4
1 Department of Gastroenterology, Yamashita Hospital, Ichinomiya, Japan
2 Department of Occupational and Environmental Health, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
3 Department of Nursing, Yamashita Hospital, Ichinomiya, Japan
4 Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
■Link
https://doi.org/10.1016/j.vgie.2019.06.009
■Journal
Journal of Rehabilitation Medicine Clinical Communications . 2021 Nov 8:4:1000071
■Title
SAFETY AND EFFECTIVENESS OF A STATIC WEARABLE CHAIR FOR PATIENTS REQUIRING REHABILITATION: A PRELIMINARY REPORT
■Authors
Yoshitaka Maeda 1, Kosuke Oiwa 2, Tameto Naoi 3, Mitsuya Morita 3, Toshiki Mimura 4, Joji Kitayama 4, Hiroshi Kawahira 1
1 Medical Simulation Center, Jichi Medical University, Tochigi, Japan
2 Department of Electrical Engineering and Electronics, Aoyama Gakuin University, Kanagawa, Japan
3 Rehabilitation Center, Jichi Medical University Hospital, Tochigi, Japan
4 Department of Surgery, Jichi Medical University, Tochigi, Japan
■Link
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8591300/
■Conference
SAGES 2017 Annual Meeting in Houston, TX. Emerging Technology Poster, March 22-25, 2017
■Title
ARCHELIS, A NEW SURGICAL WEARABLE CHAIR WITHOUT ELECTRICAL EQUIPMENTS
■Authors
Hiroshi Kawahira 1, Ayano Toriumi 1, Yui Uema 1, Ryoichi Nakamura 1
1 Center for Frontier Medical Engineering, Chiba University
■Link
https://www.sages.org/meetings/annual-meeting/abstracts-archive/archelis-a-new-surgical-wearable-chair-without-electrical-equipments/
■Journal
HUMAN-COMPUTER INTERACTION, Vol.1958, Springer, pp.485- 492.
■Conference
International Conference on Human-Computer Interaction HCI International 2023, Copenhagen, Denmark.
■Title
A Study of the Comparative Evaluation System of the Lower-Limb Exoskeleton
■Authors
Yong-Ku Kong 1, Sang-Soo Park 1, Jin-Woo Shim 1, Dae-Min Kim 2, Heung-Youl Kim 3, and Hyun-Ho Shim1
1 Department of Industrial Engineering, Sungkyunkwan University, Seoul, Korea
2 Department of ICT Convergence Engineering, Dongseo University, Busan, Korea
3 Physical Education Center, Nanzan University, Nagoya, Japan
■Link
https://link.springer.com/chapter/10.1007/978-3-031-49215-0_58