Zobrazeno 1 - 10
of 37
pro vyhledávání: '"Jeffrey M. Schiffman"'
Publikováno v:
Gait & Posture. 65:143-148
Changing directions while walking (turning gait), often with little planning time, is essential to navigating irregular surfaces in the built-environment. It is unclear how older adults reorient their bodies under these constraints and whether adapta
Publikováno v:
Journal of Biomechanics. 71:37-42
The aim of this study was to investigate if a machine learning algorithm utilizing triaxial accelerometer, gyroscope, and magnetometer data from an inertial motion unit (IMU) could detect surface- and age-related differences in walking. Seventeen old
Autor:
Ming-Lun Lu, Marty Smets, Ryan Porto, Ryan Z. Amick, Haifa R. Moses, Christopher R. Reid, Jeffrey M. Schiffman, Mark C. Schall
Publikováno v:
Proceedings of the Human Factors and Ergonomics Society Annual Meeting. 61:1026-1030
Wearable technologies are changing the way that people interact with the world. Personal physical activity monitors are becoming ubiquitous in our society and are helping to advance user health and performance, yet, many workplaces have not broadly a
Autor:
Jack T. Dennerlein, Benedicte Vanwanseele, Boyi Hu, Jesse V. Jacobs, Jeffrey M. Schiffman, Schütte Kh, Philippe C. Dixon, Fournier Pa
Publikováno v:
Gaitposture. 74
Background Running is a popular physical activity that benefits health; however, running surface characteristics may influence loading impact and injury risk. Machine learning algorithms could automatically identify running surface from wearable moti
Knee muscle co-contractions are greater in old compared to young adults during walking and stair use
Autor:
Vishnu Deep Chandran, Jeffrey M. Schiffman, Jan A. Calalo, Jack T. Dennerlein, Saikat Pal, Philippe C. Dixon
Publikováno v:
Gaitposture. 73
Background Muscle co-contraction is an accepted clinical measure to quantify the effects of aging on neuromuscular control and movement efficiency. However, evidence of increased muscle co-contraction in old compared to young adults remains inconclus
Autor:
Jack T. Dennerlein, Tina Smith, Matthew J D Taylor, Philippe C. Dixon, Jesse V. Jacobs, Jeffrey M. Schiffman
Publikováno v:
Human movement science. 66
Turning while walking is a crucial component of locomotion, often performed on irregular surfaces with little planning time. Turns can be difficult for some older adults due to physiological age-related changes. Two different turning strategies have
Publikováno v:
Applied Ergonomics. 55:56-62
Soldiers often trip and fall on duty, resulting in injury. This study examined ten male soldiers' ability to negotiate an obstacle. Participants had lead and trail foot minimum foot clearance (MFC) parameters quantified while crossing a low (305 mm)
Publikováno v:
Applied Ergonomics. 52:54-61
Fifteen military personnel performed 30-cm drop landings to quantify how body borne load (light, ∼6 kg, medium, ∼20 kg, and heavy, ∼40 kg) impacts lower limb kinematics and knee joint energy absorption during landing, and determine whether grea
Autor:
Jeffrey M. Schiffman, Benedicte Vanwanseele, Jack T. Dennerlein, Kurt H. Schütte, Philippe C. Dixon, Jesse V. Jacobs
Publikováno v:
Gaitposture. 61
Background Outdoor falls in community-dwelling older adults are often triggered by uneven pedestrian walkways. It remains unclear how older adults adapt to uneven surfaces typically encountered in the outdoor built-environment and whether these adapt
Autor:
Jack T. Dennerlein, Philippe C. Dixon, Xu Xu, Leia Stirling, C.C. Chang, Jeffrey M. Schiffman
Publikováno v:
Human movement science. 60
Stairs represent a barrier to safe locomotion for some older adults, potentially leading to the adoption of a cautious gait strategy that may lack fluidity. This strategy may be characterized as unsmooth; however, stair negotiation smoothness has yet