Article
Multidisciplinary Sciences
Longfei Cheng, Caihua Xiong, Wenbin Chen, Jiejunyi Liang, Bo Huang, Xiaowei Xu
Summary: The assistive exotendon significantly reduced muscle effort and altered joint kinematics during walking. This suggests that passive devices assisting hip extension and knee flexion can be effective in reducing muscle burden.
ROYAL SOCIETY OPEN SCIENCE
(2021)
Article
Chemistry, Analytical
Jonathan Sinclair, Paul John Taylor, Gareth Shadwell, Mark Stone, Nicole Booth, Bryan Jones, Sam Finlay, Ashraf Mohamed Ali, Bobbie Butters, Ian Bentley, Christopher James Edmundson
Summary: This two-experiment study examined the effects of different foot placement angles on squat performance. The results showed that increasing foot placement angles can enhance physical preparedness for sprinting and rapid changes of direction, while reducing foot placement angles can attenuate knee pathologies and promote the development of certain muscles.
Article
Multidisciplinary Sciences
Hugo Zambrano, Xavier Torres, Max Coleman, Martino V. Franchi, James P. Fisher, Douglas Oberlin, Bas Van Hooren, Paul A. Swinton, Brad J. Schoenfeld
Summary: This study compared the effects of different forms of resistance exercise on myoelectric activity during elbow flexion. The results showed that there were some differences in muscle activity under different conditions, but these differences were relatively small and may have minimal practical significance.
SCIENTIFIC REPORTS
(2023)
Article
Neurosciences
Ehsan Rashedi, Kavish Kathawala, Masoud Abdollahi, Mohammad Mehdi Alemi, Mohammad Iman Mokhlespour Esfahani, Maury A. Nussbaum
Summary: Slips, trips, and falls are major causes of occupational injuries and fatalities, which can contribute to low-back problems. A study was conducted to measure lumbar kinematics and kinetics during slip, trip, and normal walking events. The results showed that lumbar range of motion, lumbosacral loads, and lumbar muscle activations were all significantly higher during slip and trip events compared to normal walking. The observed high forces and muscle activities suggest the potential for overexertion injuries and tissue damage during unexpected slip and trip events, contributing to low back injuries. The study's outcomes may help identify and control specific mechanisms involved in low back disorders caused by slips or trips.
JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY
(2023)
Article
Neurosciences
Emma Nielsen, Taylor W. Cleworth, Mark G. Carpenter
Summary: This study used head-mounted virtual reality to assess the influence of postural threat on visual control of balance. The results showed that exposure to visual stimuli at an elevated surface height led to significant changes in participants' physiological arousal and emotional state.
NEUROSCIENCE LETTERS
(2022)
Article
Biophysics
Mohammad Homayounpour, Nicholas G. Gomez, Anita N. Vasavada, Andrew S. Merryweather
Summary: This study investigated the relative temporal characteristics of the head following impacts from different directions and found that a warning prior to impact can reduce head kinematics associated with injury.
JOURNAL OF BIOMECHANICS
(2021)
Article
Orthopedics
Linda Buehl, Sebastian Mueller, Corina Nueesch, Katherine A. Boyer, Erica Casto, Annegret Muendermann, Christian Egloff
Summary: Knee biomechanics and muscle control are comparable between ACL-IB and ACL-R patients two years after surgery, but differences still exist compared to controls. ACL tears not only cause mechanical disruption but also affect sensorimotor integrity. ACL-IB shows fewer abnormalities in knee moments and semitendinosus muscle function during walking.
BMC MUSCULOSKELETAL DISORDERS
(2023)
Article
Neurosciences
Robyn L. Mildren, Kathleen E. Cullen
Summary: To maintain stable posture, the brain integrates information across multiple sensory systems, including the vestibular system. This study found that the primate vestibular system, independent of visual input, controls head posture during self-motion. Surprisingly, visual information does not modulate the vestibular-driven responses, and autonomic arousal enhances vestibular-evoked responses.
JOURNAL OF NEUROSCIENCE
(2023)
Review
Biotechnology & Applied Microbiology
Yuqi He, Gusztav Fekete, Dong Sun, Julien S. Baker, Shirui Shao, Yaodong Gu
Summary: This study reviews the valuable contributions of lower limb biomechanics to table tennis topspin forehand. The study found that hip movement characteristics and muscle group activity significantly contribute to the maximum acceleration of the racket. Optimizing ankle joint motion and muscle activity is beneficial for energy transmission in the kinetic chain.
BIOENGINEERING-BASEL
(2022)
Article
Biophysics
Lasse Schroder Jakobsen, Pascal Madeleine, Sebastien Pavailler, Felix Lefebvre, Marlene Giandolini
Summary: This study aimed to analyze the kinematics and kinetics of the lower extremities in the sagittal plane during running on unstable surfaces. The results showed that running on an unstable surface led to decreased range of motion and force development at the knee and ankle joints, as well as increased force and activation in certain muscles. Additionally, there was an increase in step-to-step variability in the unstable condition.
JOURNAL OF BIOMECHANICS
(2022)
Article
Psychology, Multidisciplinary
Rosa Angulo-Barroso, Blai Ferrer-Uris, Julia Jubany, Albert Busquets
Summary: The study examined the drop-landing strategies of young children, with a focus on the lower extremity. The results showed that landing performance may reach a critical point of development at 4-5 years of age, with significant differences observed between younger and older age groups. This finding has important implications for improving landing strategies in young children.
FRONTIERS IN PSYCHOLOGY
(2022)
Article
Orthopedics
Safeer F. Siddicky, Junsig Wang, Brien Rabenhorst, Lauren Buchele, Erin M. Mannen
Summary: This study evaluated hip joint position and lower-extremity muscle activity of healthy infants in different body positions and using different orthopedic devices. The results suggest that using inward-facing soft-structured baby carriers may have benefits for healthy hip development, while prolonged used of supine-lying container-type devices like car seats could have negative impacts on infant hip development.
JOURNAL OF ORTHOPAEDIC RESEARCH
(2021)
Review
Neurosciences
Marie B. Semaan, Laura Wallard, Valentin Ruiz, Christophe Gillet, Sebastien Leteneur, Emilie Simoneau-Buessinger
Summary: This study compared the effects of treadmill and overground walking on biomechanical, electromyographical, and energy consumption outcomes. The results showed that most outcome measures were comparable between the two conditions. However, there were differences in kinematic, kinetic, and electromyographic parameters, which should be considered by clinicians, trainers, and researchers when designing protocols.
Article
Behavioral Sciences
Zahra Vahedi, Zeinab Kazemi, Ali Sharifnezhad, Adel Mazloumi
Summary: This study evaluates the effects of posture, task, and handgrip style on discomfort, neck kinematics, and muscular activity when using a smartphone. The results indicate that using a smartphone while sitting increases discomfort, neck flexion, and muscular activity. The study highlights the importance of considering posture and handgrip while using smartphones.
Review
Respiratory System
Jennifer M. Yentes, Wai-Yan Liu, Kuan Zhang, Eric Markvicka, Stephen Rennard
Summary: Patients with COPD show functional decline in addition to pulmonary problems. Biomechanics can provide insight into this decline by studying abnormal movement patterns. This review discusses the biomechanics of functional outcomes, muscle mechanics, and breathing mechanics in COPD patients, as well as the future directions and clinical perspectives of this field.
INTERNATIONAL JOURNAL OF CHRONIC OBSTRUCTIVE PULMONARY DISEASE
(2022)
