Ping Hu, Ziang Jiang, Shaojun Ma, Rongshan Cheng, Tsung-Yuan Tsai, Haiya Wang
BACKGROUND: As a geriatric syndrome, sarcopenia may exacerbate static postural control and increase fall risk among older adults. The Romberg test, a simple method to assess static postural control, has the potential to predict fall, but has rarely been used to assess static postural control and fall risk in sarcopenic older adults. RESEARCH QUESTION: How does sarcopenia increase fall risk by affecting static postural control? METHODS: Forty-four older adults performed the Romberg test and were included for analyses...
May 14, 2024: Gait & Posture
Elijah M Walker, Nicholas L Hunt, Amy E Holcomb, Clare K Fitzpatrick, Tyler N Brown
BACKGROUND: Stress fracture is a concern among older adults, as age-related decrements in ankle neuromuscular function may impair their ability to attenuate tibial compressive forces experienced during daily locomotor tasks, such as stair descent. Yet, it is unknown if older adults exhibit greater tibial compression than their younger counterparts when descending stairs. RESEARCH QUESTION: Do older adults exhibit differences in ankle biomechanics that alter their tibial compression during stair descent compared to young adults, and is there a relation between tibial compression and specific changes in ankle biomechanics? METHODS: Thirteen young (18-25 years) and 13 older (> 65 years) adults had ankle joint biomechanics and tibial compression quantified during a stair descent...
May 14, 2024: Gait & Posture
Ryo Onuma, Hiroshi R Yamasaki, Fumihiko Hoshi, Ryosuke Tozawa, Yuki Soutome, Tomoko Sakai, Tetsuya Jinno
OBJECTIVES: Using smartphones, we aimed to clarify the characteristics of anticipatory postural adjustments (APA) in older adults and examine the relationship between cognitive and balance functions. METHODS: The study participants were 10 young and 13 older adults. An accelerometer built into a smartphone was attached to the lower back (L5) of the participant, and acceleration in the mediolateral direction was measured using a one-leg stance (OLS). As APA features, we analyzed the time to the peak value in the stance direction (peak latency [PL]) and the amount of displacement to the peak value in the stance direction (peak magnitude [PM])...
May 14, 2024: Gait & Posture
Yuki Kondo, Yosuke Ariake, Ippei Suzuki, Taro Kato, Kota Furukawa, Kyota Bando, Atsushi Nakashiba, Takuya Watabe, Yuta Miyazaki, Yohei Mukai, Takatoshi Hara, Yuji Takahashi
BACKGROUND: Photo-based measurement methods are used to assess axial postural abnormalities (PA) in Parkinson's disease (PD). However, they capture only moments in time. We developed the 2-minute standing endurance test (2 M-SET), which specifically captures temporal changes in posture, as a novel dynamic method for measuring axial PA in patients with PD. RESEARCH QUESTION: This study aimed to verify the effectiveness and validity of the 2 M-SET for capturing temporal changes in axial PA in patients with PD...
May 14, 2024: Gait & Posture
Vaibhavsingh Varma, Mitja Trkov
BACKGROUND: Intersegmental coordination between thigh, shank, and foot plays a crucial role in human gait, facilitating stable and efficient human walking. Limb elevation angles during the gait cycle form a planar manifold describes the by the planar covariation law, a recognized fundamental aspect of human locomotion. RESEARCH QUESTION: How does the walking speed, age, BMI, and height, affect the size and orientation of the intersegmental coordination manifold and covariation plane? METHODS: This study introduces novel metrics for quantifying intersegmental coordination, including the mean radius of the manifold, rotation of the manifold about the origin, and the orientation of the plane with respect to the coordinate planes...
May 13, 2024: Gait & Posture
Michelle G Criss, Kevin K Chui, Joann Gallichio, Jennifer Canbek
No abstract text is available yet for this article.
May 12, 2024: Gait & Posture
Julia A Dunn, Nicholas G Gomez, Bob Wong, Sarina K Sinclair, Heath B Henninger, K Bo Foreman, Kent N Bachus
BACKGROUND: Transhumeral (TH) limb loss leads to loss of body mass and reduced shoulder range of motion. Despite most owning a prosthesis, prosthesis abandonment is common. The consequence of TH limb loss and prosthesis use and disuse during gait may be compensation in the upper body, contributing to back pain or injury. Understanding the impact of not wearing a TH prosthesis on upper body asymmetries and spatial-temporal aspects of gait will inform how TH prosthesis use and disuse affects the body...
May 11, 2024: Gait & Posture
Takehiro Ohmi, Hiroki Katagiri, Masaki Amemiya, Koji Ikematsu, Midori Miyazaki, Hideyuki Koga, Kazuyoshi Yagishita
BACKGROUND: Many middle-aged and older adults participate in running to maintain their health and fitness; however, some have to stop running due to osteoarthritis-attributed knee pain. It was unclear whether gait biomechanics and knee physical findings differ between those who can and cannot run. RESEARCH QUESTION: What are the gait and knee physical findings of patients with knee osteoarthritis who remain capable of running in comparison to those who are not capable of running? METHODS: This was a cross-sectional study, which recruited 23 patients over the age of 40 who had been diagnosed with knee osteoarthritis...
May 9, 2024: Gait & Posture
Dalia Al Otti, Stijn Ghijselings, Filip Staes, Lennart Scheys
BACKGROUND: Biplanar radiography displays promising results in the production of subject-specific (S.specific) biomechanical models. However, the focus has predominantly centred on methodological investigations in gait analysis. Exploring the influence of such models on the analysis of high range of motion tasks linked to hip pathologies is warranted. The aim of this study is to investigate the effect of S.Specific modelling techniques on the reliability of deep squats kinematics in comparison to generic modelling...
May 8, 2024: Gait & Posture
Maximiliano Torres-Banduc, Daniel Jerez-Mayorga, Luis Chirosa-Ríos, Paula Plaza, Ignacio Chirosa-Ríos
BACKGROUND: Despite the significance of muscle oscillation frequency, previous research has not established a correlation with muscle performance due to the challenges of applying resistance without altering natural motion during functional tests. RESEARCH QUESTION: What is the correlation between muscle oscillation frequency and lower limb muscle strength, power, and work during an instrumented sit-to-stand and stand-to- sit (iSTS-TS) task among sedentary subjects? METHODS: In a cross-sectional study, the oscillation frequency of the gastrocnemius medialis (GM), biceps femoralis (BF), and vastus medialis (VM) muscles in both the dominant (D) and non-dominant (ND) legs was assessed with a handheld myotonometer in 34 sedentary individuals before performing the iSTS-TS task...
May 8, 2024: Gait & Posture
David Sing Yee Vun, Robert Bowers, Anthony McGarry
BACKGROUND: Developments in vision-based systems and human pose estimation algorithms have the potential to detect, monitor and intervene early on neurodegenerative diseases through gait analysis. However, the gap between the technology available and actual clinical practice is evident as most clinicians still rely on subjective observational gait analysis or objective marker-based analysis that is time-consuming. RESEARCH QUESTION: This paper aims to examine the main developments of vision-based motion capture and how such advances may be integrated into clinical practice...
May 7, 2024: Gait & Posture
Zachary J Eatough, Andrew C Peterson, Rich J Lisonbee, Takuma Miyamoto, Yasuhito Tanaka, Charles L Saltzman, Nicola Krähenbühl, Amy L Lenz
BACKGROUND: Advanced varus ankle osteoarthritis is a debilitating disease that can present with limited physical function, severe pain, and diminished quality of life. Weightbearing computed tomography enables submillimeter 3-dimensional visualization, computational analyses, and enhanced diagnoses in reporting complex degenerative changes more accurately. RESEARCH QUESTION: This study set to compare static posture weightbearing joint angle differences in healthy and varus ankle osteoarthritis patients (compensated and non-compensated)...
May 7, 2024: Gait & Posture
Aleksi Leviäkangas, Raija Korpelainen, Pekka Pinola, Jonatan Fridolfsson, Laura Nauha, Timo Jämsä, Vahid Farrahi
PURPOSE: Accelerometers are used to objectively measure physical activity; however, the relationship between accelerometer-based activity parameters and bone health is not well understood. This study examines the association between accelerometer-estimated daily activity impact intensities and future risk estimates of major osteoporotic fractures in a large population-based cohort. METHODS: Participants were 3165 adults 46 years of age from the Northern Finland Birth Cohort 1966 who agreed to wear a hip-worn accelerometer during all waking hours for 14 consecutive days...
May 5, 2024: Gait & Posture
János Négyesi, Wenyu Zhang, Ziheng Wang, Ryoichi Nagatomi
BACKGROUND: The use of individually preferred colored glasses has gained popularity with the expectation that it may improve balance control and sports performance, however, the results of previous studies remain inconclusive. AIM OF THE STUDY: In the present pilot study, we aimed to determine the association between participants' subjective preference and standing balance performance when wearing five different colored glasses. METHODS: Thirteen participants stood on one or two legs on a pair of synchronized force platforms for 30 seconds with 60 seconds rest between the five-five randomized stance trials, while wearing red, blue, yellow, green, or transparent colored glasses...
May 3, 2024: Gait & Posture
Natalie A Bick, Mark S Redfern, J Richard Jennings, Shaun M Eack, Jana M Iverson, Rakié Cham
INTRODUCTION: Altered sensorimotor function is a common feature of autism spectrum disorder (ASD). As a result, spatiotemporal walking patterns are typically affected. Attentional processes relevant for locomotion may be altered in people with ASD. This study assessed the extent to which gait alterations observed under sensory challenging conditions are due to reduced attention-related processes in young adults with ASD. METHODS: Twenty-one adults with ASD and 21 age- and sex-matched neurotypical participants walked at a self-selected pace on a 10-m walkway under 12 sensory/attention conditions: hard or carpet flooring; well-lit or dim lighting; no attention task, an auditory choice-reaction time information-processing task, or a simple reaction time information-processing task...
May 3, 2024: Gait & Posture
Y Murakami, S Ota, R Fujita, H Ohko, S Kawasaki
BACKGROUND: To evaluate whether the knee adduction moment (KAM) could be reduced by a short instruction in the Draw-in (DI) maneuver in healthy adults, and whether knee joint function would improve with a longer DI gait intervention in patients with knee osteoarthritis (OA). METHOD: In Study 1, healthy adults received 10 minutes supervised instruction in DI gait in and then practiced the gait independently for 10 minutes. Three-dimensional motion analysis measurement was performed in each phase...
May 3, 2024: Gait & Posture
Kirsten M Anderson, Molly A Corlett, Sara M Magdziarz, Donald D Anderson, Jason M Wilken
BACKGROUND: Traumatic lower limb injuries can result in chronic pain. Orthotic interventions are a leading conservative approach to reduce pain, manage loading, and protect the foot. Robust carbon fiber custom dynamic orthoses (CDOs) designed for military service members have been shown to reduce foot loading. However, the effect of carbon fiber orthosis design, including designs widely used in the civilian sector, on foot loading is unknown. RESEARCH QUESTION: Determine if carbon fiber orthoses alter foot loading during gait...
May 3, 2024: Gait & Posture
Francesco Di Nardo, Sandro Fioretti
BACKGROUND: The linear-envelope peak (LEP) of surface EMG signal is widely used in gait analysis to characterize muscular activity, especially in clinics. RESEARCH QUESTION: This study is designed to evaluate LEP accuracy in identifying muscular activation and assessing activation timing during walking. METHODS: Surface EMG signals from gastrocnemius lateralis (GL) and tibialis anterior (TA) were analyzed in 100 strides per subject (31 healthy subjects) during ground walking...
May 3, 2024: Gait & Posture
Nahime Al Abiad, Enguerran Houdry, Carlos El Khoury, Valerie Renaudin, Thomas Robert
BACKGROUND: To complement traditional clinical fall risk assessments, research is oriented towards adding real-life gait-related fall risk parameters (FRP) using inertial sensors fixed to a specific body position. While fixing the sensor position can facilitate data processing, it can reduce user compliance. A newly proposed step detection method, Smartstep, has been proven to be robust against sensor position and real-life challenges. Moreover, FRP based on step variability calculated from stride times (Standard deviation (SD), Coefficient of Variance (Cov), fractal exponent, and sample entropy of stride duration) proved to be useful to prospectively predict the fall risk...
May 3, 2024: Gait & Posture
N F J Waterval, F Nollet, M A Brehm
BACKGROUND: People with plantar flexor weakness generate less ankle push-off work during walking, resulting in inefficient proximal joint compensations. To increase push-off work, spring-like ankle foot orthoses (AFOs) can be provided. However, whether and in which patients AFOs increase push-off work and reduce compensatory hip and knee work is unknown. METHODS: In 18 people with bilateral plantar flexor weakness, we performed a 3D gait analysis at comfortable walking speed with shoes-only and with AFOs of which the stiffness was optimized...
May 3, 2024: Gait & Posture
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