Article
Orthopedics
Joseph E. Manzi, Jacob H. Zeitlin, Brittany Dowling, Nicholas Roberts, Joseph J. Ruzbarsky, Michael C. Ciccotti, Joshua S. Dines
Summary: Pelvis rotation at foot contact is associated with various kinematic parameters in both high school and professional pitchers, potentially influencing mechanics further along the kinetic chain. An increase in pelvis rotation at foot contact leads to increased stride length, trunk rotation, and decreased trunk flexion.
AMERICAN JOURNAL OF SPORTS MEDICINE
(2022)
Article
Multidisciplinary Sciences
Haitao Yang, Jiali Li, Xiao Xiao, Jiahao Wang, Yufei Li, Kerui Li, Zhipeng Li, Haochen Yang, Qian Wang, Jie Yang, John S. Ho, Po-Len Yeh, Koen Mouthaan, Xiaonan Wang, Sahil Shah, Po-Yen Chen
Summary: The authors demonstrate a topographic design for wearable MXene sensor modules with wireless streaming or in-sensor computing models for avatar reconstruction. The wearable strain sensor modules exhibited ultrahigh sensitivities within the working windows that meet all joint deformation ranges. By integrating the wearable sensors with a ML chip, an edge sensor module is fabricated, enabling in-sensor reconstruction of high-precision avatar animations.
NATURE COMMUNICATIONS
(2022)
Article
Biology
Pauline Provini, Ariel L. Camp, Kristen E. Crandell
Summary: Deconstructing motion is crucial in the field of comparative biomechanics. The addition of three-dimensional information has led to paradigm shifts and opened up new research opportunities. However, high-resolution data also come with challenges such as low throughput methodology and costly equipment.
JOURNAL OF EXPERIMENTAL BIOLOGY
(2022)
Article
Neurosciences
Tetsunari Harada, Satoshi Hamai, Daisuke Hara, Shinya Kawahara, Masanori Fujii, Satoshi Ikemura, Goro Motomura, Yasuharu Nakashima
Summary: This study aimed to investigate the hip kinematics and kinetics of unilateral total hip arthroplasty (THA) patients while getting into and out of a car. The results showed that restoring the range of motion and muscle strength in the surgical hip joint and adopting the normal side as the pivot limb can lead to a more balanced motion of getting into and out of a car, which in turn promotes safe mobility, social participation, and improved quality of life.
Article
Neurosciences
Tetsunari Harada, Satoshi Hamai, Daisuke Hara, Shinya Kawahara, Masanori Fujii, Satoshi Ikemura, Goro Motomura, Yasuharu Nakashima
Summary: This study examined the hip kinematics and kinetics of unilateral total hip arthroplasty (THA) patients while getting into and out of a car. The results showed that when using the surgical side as the pivot limb, the range of motion and power of the pivot hip decreased, and the power of the contralateral ankle increased. When using the contralateral side as the pivot limb, there was no significant difference in the range of motion and power. These findings are important for the restoration of patients' range of motion and strength, which can improve the safety and quality of life during car transfers.
Article
Medical Informatics
Jian-ping Wang, Shi-hua Wang, Yan-qing Wang, Hai Hu, Jin-wei Yu, Xuan Zhao, Jin-lai Liu, Xu Chen, Yu Li
Summary: This paper developed an automatic kinematics data processing method using MATLAB software, accurately measuring the motion characteristics of healthy volunteers, with results consistent with other research methods. A new Patch Program and universal data processing program were developed for obtaining the relative movement of various components of the human body.
BMC MEDICAL INFORMATICS AND DECISION MAKING
(2021)
Article
Biophysics
Christoffer Roepstorff, Annik Imogen Gmel, Samuel Arpagaus, Filipe Manuel Serra Braganca, Elin Hernlund, Lars Roepstorff, Marie Rhodin, Michael Andreas Weishaupt
Summary: In this study, the relationship between upper body kinematic variables and weight-bearing lameness in horses was investigated. The results showed a complex relationship between vertical movement asymmetry and the peak vertical ground reaction forces, with both amplitude and timing playing important roles.
JOURNAL OF BIOMECHANICS
(2022)
Article
Biotechnology & Applied Microbiology
Santiago Arroyave-Tobon, Jordan Drapin, Anton Kaniewski, Jean-Marc Linares, Pierre Moretto
Summary: This study evaluated the effects of modeling uncertainties on kinematic simulations at small scale, developed a multibody model of a Messor barbarus ant, and acquired kinematic data using high-speed cameras. The results showed that the model was more sensitive to perturbations on marker position, which is of interest for locomotion studies of small quadrupeds and other multi-legged animals.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Engineering, Biomedical
Harsh Sharma, Supreeth S. Karan, Ayushi Kumari Agrawal, Kavita Vemuri
Summary: Understanding the relationship between physical characteristics and activity to kinematic properties of the spine is important for various applications. This study categorized spine kinematics and examined their correlations to body-mass index (BMI), waist-to-hip ratio (WHR), and physical activity levels in healthy young adults. The findings highlight the impact of physical activity on musculoskeletal flexibility in young adults.
BIOMEDICAL SIGNAL PROCESSING AND CONTROL
(2023)
Article
Chemistry, Analytical
Christian Tamantini, Francesca Cordella, Clemente Lauretti, Loredana Zollo
Summary: The study emphasizes the importance of human movement monitoring in preventing musculoskeletal disorders through the proposed WGD-Working Gesture Dataset. By analyzing kinematic data, quantitative indicators can be extracted to assess working tasks and detect factors that may contribute to the onset of musculoskeletal disorders. The results show that these indicators can be used to early detect incorrect gestures and postures, ultimately preventing work-related disorders.
Article
Multidisciplinary Sciences
Bokkyu Kim, Christopher Neville
Summary: In this study, a computer vision-based 3D motion capture system was developed using two action cameras to track an object manipulated by a hand. The accuracy and feasibility of this approach for detecting changes in fine hand motor skill were examined.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Analytical
Amartya Ganguly, Gabriel Rashidi, Katja Mombaur
Summary: The study compared finger kinematic data between the Leap Motion Controller (LMC) and a gold-standard marker-based motion capture system, Qualisys Track Manager (QTM), concluding that the LMC is not currently suitable to replace gold-standard motion capture systems in clinical settings. Further studies are needed to validate the LMC's performance as it is updated and upgraded.
Article
Multidisciplinary Sciences
Pin-Ling Liu, Chien-Chi Chang, Jia-Hua Lin, Yoshiyuki Kobayashi
Summary: This study proposed a benchmarking method to evaluate the accuracy of depth cameras for full-body landmark location estimation in ergonomics applications. By comparing the tracking errors of two different DCMTSs and MMTSs, it was found that the proposed method can effectively assess the performance of DCMTSs. High reliability was achieved with intraclass correlation coefficients of 0.97 and 0.92 for the Kinect system and RealSense system, respectively.
Article
Biochemical Research Methods
Jan Stenum, Cristina Rossi, Ryan T. Roemmich
Summary: The author suggests that novel pose estimation algorithms can automatically track human movement for analyzing human gait, moving away from the dependence on laboratories. Their research shows that their workflow can accurately estimate gait parameters, and discusses the impact of camera viewpoint on the results.
PLOS COMPUTATIONAL BIOLOGY
(2021)
Article
Veterinary Sciences
Aagje M. Hardeman, Agneta Egenvall, Filipe M. Serra Braganca, Jan-Hein Swagemakers, Marc H. W. Koene, Lars Roepstorff, Rene van Weeren, Anna Bystrom
Summary: Quantitative gait analysis provides objective information for clinical decision-making during lameness workups, with good agreement on lame limb between veterinarians and correlation between subjective assessments and measured asymmetry. Differences between baseline assessment and assessment following diagnostic analgesia suggest the benefit of adding objective data to reduce expectation bias. Overall, high-quality videos can complement objective gait analysis data for documentation, communication, and education.
EQUINE VETERINARY JOURNAL
(2022)
Article
Biophysics
J. Borrelli, V Komisar, A. C. Novak, B. E. Maki, E. C. King
JOURNAL OF BIOMECHANICS
(2020)
Article
Endocrinology & Metabolism
Yijian Yang, Vicki Komisar, Nataliya Shishov, Bryan Lo, Alexandra M. B. Korall, Fabio Feldman, Stephen N. Robinovitch
JOURNAL OF BONE AND MINERAL RESEARCH
(2020)
Article
Geriatrics & Gerontology
Vicki Komisar, Nataliya Shishov, Yijian Yang, Stephen N. Robinovitch
Summary: The study found that over 60% of older adults hold objects during falls, with weight-bearing objects significantly reducing the risk of head impact during descent. Holding non-weight-bearing objects did not affect the odds of head impact. This highlights the importance of utilizing weight-bearing objects to reduce the risk of head injuries in older adults living in long-term care facilities.
JOURNALS OF GERONTOLOGY SERIES A-BIOLOGICAL SCIENCES AND MEDICAL SCIENCES
(2021)
Article
Behavioral Sciences
Carolyn A. Duncan, Nicole Bishop, Vicki Komisar, Scott N. MacKinnon, Jeannette M. Byrne
Summary: As the intensity of simulated motion increases, performance in the SAR task decreases, accompanied by increases in lower limb muscle activation and number of steps taken.
Article
Engineering, Industrial
Philippa Gosine, Vicki Komisar, Alison C. Novak
Summary: Research found that participants tended to use compensatory stepping to recover balance after sudden imbalance during stair descent, with higher perturbation magnitude leading to increased center-of-mass velocity and handrail forces.
APPLIED ERGONOMICS
(2021)
Article
Behavioral Sciences
Vicki Komisar, Alison C. Novak
Summary: This study investigated the effects of handrail height and age on trunk and shoulder kinematics, and applied handrail forces during gait recovery reactions. Results indicated that higher handrails (up to 42 inches) may be advantageous for trunk control during destabilizations.
Review
Endocrinology & Metabolism
Vicki Komisar, Stephen Neil Robinovitch
Summary: This review explores how the mechanics of falls in older adults influence the risk of fractures in the hip, wrist, vertebrae, and humerus. It also discusses the importance of factors such as fall height, direction, and landing configuration in fracture risk. Furthermore, it highlights the benefits of exercise, wearable protective gear, and environmental modifications in preventing fractures in older adults, emphasizing the need for collaboration between bone and falls research communities to develop effective strategies and solutions.
CURRENT OSTEOPOROSIS REPORTS
(2021)
Article
Biophysics
Philippa Gosine, Vicki Komisar, Alison C. Novak
Summary: Our study found that 38 mm round handrails allowed participants to successfully recover from the largest perturbations and enabled the highest force generation, while tapered handrails had the poorest performance, resulting in the lowest force generation.
JOURNAL OF BIOMECHANICS
(2021)
Article
Multidisciplinary Sciences
Nataliya Shishov, Karam Elabd, Vicki Komisar, Helen Chong, Stephen N. Robinovitch
Summary: The study examined the validity of extracting kinematic features of falls using digitization software with real-life fall video footage. It found that Kinovea can be applied to 30 Hz video to measure linear positions and velocities with an accuracy of up to 9%. However, lower accuracy was observed in angular kinematics of the upper and lower limb in sideways falls, and for horizontal measures from 30 degree cameras or 1D height-based calibration.
Article
Behavioral Sciences
Philippa Gosine, Vicki Komisar, Alison C. Novak
Summary: This study aims to determine the effect of handrail cross-section on the speed and quality of reach-to-grasp movements following balance loss in younger and older adults.
Article
Environmental Sciences
Yijian Yang, Kimberley S. van Schooten, Vicki Komisar, Heather A. McKay, Joanie Sims-Gould, Debbie Cheong, Stephen N. Robinovitch
Summary: This study developed and evaluated a physical activity program for older adults in assisted living, which showed significant improvements in upper-limb strength and balance recovery. Participants were satisfied with the program, and staff provided suggestions for improvement.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Geriatrics & Gerontology
Vicki Komisar, Aleksandra Dojnov, Yijian Yang, Nataliya Shishov, Helen Chong, Ying Yu, Ian Bercovitz, Michael D. Cusimano, Clemens Becker, Dawn C. Mackey, Stephen N. Robinovitch
Summary: This observational study analyzed videos of falls in long-term care settings to investigate the probability of impact and injury to different body parts. The study found that injuries were most commonly reported in the head, while impact occurred most frequently in the hip/pelvis. These findings highlight the need to enhance upper limb protective responses and attenuate impact forces to prevent serious injury in older adults.
Article
Geriatrics & Gerontology
Stephen N. Robinovitch, Aleksandra Dojnov, Vicki Komisar, Yijian Yang, Nataliya Shishov, Ying Yu, Ian Bercovitz, Michael D. Cusimano, Clemens Becker, Dawn C. Mackey, Helen Chong
Summary: This study aimed to investigate the difference between injurious and non-injurious falls in seniors using specific 'safe landing' strategies. The study found that rotation during descent reduced the risk of head injury, while upper limb bracing was associated with an increased risk of injury.
Article
Rehabilitation
Vicki Komisar, Kimberley S. van Schooten, Olivia M. G. Aguiar, Nataliya Shishov, Stephen N. Robinovitch
Summary: This study analyzed video footage of real-life falls during sit-to-stand transfers in long-term care settings to investigate the frequency, direction, stepping and grasping responses, and injury risk. Falls were more common during the rising phase and more likely to cause injury during the subsequent stabilization phase.
ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION
(2023)
Article
Neurosciences
Bianca Te, Vicki Komisar, Olivia M. G. Aguiar, Nataliya Shishov, Stephen N. Robinovitch
Summary: Stepping is a common strategy for balance recovery during falls in older adults in long-term care. Steps are aligned with the direction of the fall and tend to be small in size. Factors such as sex, age, fall direction, activity at the time of falling, cause of imbalance, and holding or grasping objects influence the prevalence and characteristics of stepping responses.
Article
Neurosciences
Nina Gras, Torsten Brauner, Scott Wearing, Thomas Horstmann
Summary: This study aimed to investigate the challenge posed by progressively unstable balance devices to bipedal stance during early functional rehabilitation in THA patients. The results showed that increasingly compliant balance pads provided a progressive challenge, while the challenge posed by the oscillating platform was lower and independent of the ability to stand independently.
Article
Neurosciences
Sharon M. H. Tsang, Evest H. W. Chan, Jason Y. H. Chan, Gladys P. Y. Huang, Kelly K. T. Lam, Eunice W. Y. Lam, Allan C. L. Fu, Eliza R. Sun
Summary: This study examined the differences in postural adjustments between erect, hyperlordotic, and swayback postures when facing external perturbations. The findings suggest that adopting hyperlordotic and swayback postures alters the contributions of the active and passive subsystems of the spine in postural control, potentially reducing the spine's ability to withstand loading and shear forces.
Article
Neurosciences
Hsin-yi Wang, Cheng-Yi Ho, Min-Chun Pan
Summary: This study investigated the differences in lumbar and hip movements during gait and muscle activities related to knee osteoarthritis (KOA) patients and healthy participants. The results showed that KOA patients used a hyperlordotic lumbar and hip flexed strategy, leading to excessive stress on the lower extremity joints during gait.
Article
Neurosciences
Yoshitaka Otani, Osamu Aoki
Summary: This study found that feelings of fear affect postural control but not the internal focus of attention. This finding may be useful in assessments and interventions for older adults with a fall risk.
Article
Neurosciences
Haruki Toda, Hiroaki Hobara, Mitsunori Tada
Summary: This study investigated sex differences in lower limb dynamic joint stiffness (DJS) during walking in older adults. The results showed that ankle DJS was lower in older women, which was caused by the reduced ankle plantarflexion moment. However, knee DJS did not elucidate the cause of knee osteoarthritis (OA) in older women.
Article
Neurosciences
Luis H. Cubillos, Elliott J. Rouse, Thomas E. Augenstein, Varun Joshi, Edward S. Claflin, Chandramouli Krishnan
Summary: The study found that the reliability of stiffness, viscosity, and inertia of the ankle joint was good to excellent during standing. During walking, the reliability of stiffness and viscosity was also good to excellent, while that of inertia was fair to good. The minimal detectable change (MDC) ranged widely, but was higher for inertia during walking.
Article
Neurosciences
Alexandra F. Dejong Lempke, Danielle L. Hunt, Sarah B. Willwerth, Pierre A. d'Hemecourt, William P. Meehan III, Kristin E. Whitney
Summary: Adolescent athletes alter their gait patterns throughout a marathon race, and there are correlations between biomechanical features and race performance among young marathoners.
Article
Neurosciences
Ali Esmaeili, Sayed Esmaeil Hosseininejad, Amirali Jafarnezhadgero, Valdeci Carlos Dionisio
Summary: This study investigates the effects of footwear type, navicular drop and ankle pronation on lower limb joint stiffness during running. The results show that navicular drop and dynamic ankle pronation do not affect joint stiffness, but footwear type significantly affects joint stiffness. Conventional footwear increases ankle and hip joint stiffness while reducing knee joint stiffness, which may have implications for injury risk.
Article
Neurosciences
Takahiro Watanabe, Tomoya Takabayashi, Takanori Kikumoto, Yudai Kikuchi, Shunsuke Suzuki, Shiori Hiratsuka, Masayoshi Kubo
Summary: This study suggests that there are differences in abductor hallucis activity between individuals with chronic ankle instability and ankle sprain copers, indicating neuromuscular dysfunction in these patients, which leads to pain and instability symptoms.
Letter
Neurosciences
Susan M. Linder, Mandy Miller Koop, Jay L. Alberts
Article
Neurosciences
Elza van Duijnhoven, Marit van der Veen, Fieke S. Koopman, Frans Nollet, Sjoerd M. Bruijn, Merel-Anne Brehm
Summary: Gait stability is impaired in polio survivors with plantarflexor weakness, characterized by increased step width and step length variability and lower MoSAP. These factors are related to the elevated energy cost of walking in polio survivors.
Article
Neurosciences
Rebecca Hemming, Alister du Rose, Liba Sheeran, Robert van Deursen, Valerie Sparkes
Summary: In a forward bending task, there is a relationship between trunk muscle activation and regional thoracic and lumbar kinematics in NSCLBP subgroups, indicating different motor control strategies adopted by different subgroups when performing bending tasks.
Review
Neurosciences
Carina Pohle, Linda Becker, Jochen Baumeister
Summary: This systematic review is the first to compile evidence on the effect of the menstrual cycle on postural control. The evidence regarding the influence of the menstrual cycle on postural control is unclear. However, a trend of decreased postural control from the early follicular phase to the ovulatory phase was observed in balance tasks that eliminated or altered sensory input.
