Article
Computer Science, Interdisciplinary Applications
Giorgos Krikelis, Matthew T. G. Pain, Laura-Anne M. Furlong
Summary: Accurate estimates of the Achilles tendon moment arm are crucial for studying the loading and function of the triceps surae muscle-tendon unit. By combining ultrasound and motion capture, the AT moment arm during running was estimated. The differences in the estimated AT forces can significantly affect the interpretation of the muscle-tendon unit function.
COMPUTER METHODS IN BIOMECHANICS AND BIOMEDICAL ENGINEERING
(2021)
Article
Biophysics
Xini Zhang, Liqin Deng, Yang Yang, Songlin Xiao, Lu Li, Weijie Fu
Summary: The study found that after 12 weeks of transition training from conventional shoes to minimalist shoes, there was no morphological adaptation of the Achilles tendon, but the mechanical loading of the tendon during running was adapted. Specifically, transitioning to minimalist shoes with a forefoot strike pattern may have benefits for the mechanical loading of the Achilles tendon.
JOURNAL OF BIOMECHANICS
(2021)
Article
Multidisciplinary Sciences
Gilles Udin, Aitor Fernandez Menendez, Jonas Hoyois, Mathias Chevalier, Davide Malatesta
Summary: The study compared ankle muscle activation, biomechanics, and energetics of male runners during submaximal running using minimalist and traditional cushioned shoes. The results showed that the net energy cost of running was similar for both shoe conditions, but step frequency and total mechanical work were significantly higher in minimalist shoes. The ankle muscle activation did not differ between the two shoe conditions or over time. In conclusion, minimalist shoes may provide certain advantages in terms of step frequency and mechanical work during running.
SCIENTIFIC REPORTS
(2023)
Article
Sport Sciences
Jae Kim, Simon C. C. McSweeney, Karsten Hollander, Thomas Horstman, Scott C. C. Wearing
Summary: Footwear may moderate the asymmetry in lower limb loading during peak growth in adolescence. This study compared the effects of barefoot and shod running on vertical ground reaction force and loading rates in adolescents. The use of conventional running shoes resulted in lower loading rates but higher asymmetry compared to running barefoot or wearing partial-minimal shoes. These findings have implications for performance, musculoskeletal development, and injury in adolescents.
JOURNAL OF SPORTS SCIENCES
(2023)
Article
Physiology
Benjamin Staeudle, Olivier Seynnes, Guido Laps, Gert-Peter Brueggemann, Kirsten Albracht
Summary: Achilles tendon rupture (ATR) can lead to functional limitations, but the remodeled muscle-tendon unit (MTU) has limited impact on walking gait.
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Medicine, General & Internal
Claudia Roemer, Kirsten Legerlotz, Julia Czupajllo, Thomas Fischer, Bernd Wolfarth, Markus Herbert Lerchbaumer
Summary: This study aimed to examine shear wave elastography (SWE) measures, comparing pre- and post-exercise values and determining the correlation between shear wave speed values (m/s). The findings showed a significant correlation between tissue stiffness and changes in shear wave speed values in professional athletes.
Article
Chemistry, Analytical
Rene B. K. Brund, Rasmus Waagepetersen, Rasmus O. Nielsen, John Rasmussen, Michael S. Nielsen, Christian H. Andersen, Mark de Zee
Summary: The study aimed to develop algorithms for predicting patellar and Achilles tendon force and impulse using easily collected data from commercially available devices used by runners, showing that these algorithms outperformed the commonly used running distance algorithm.
Article
Medicine, General & Internal
David Rodriguez-Sanz, Marta Elena Losa-Iglesias, Ricardo Becerro de Bengoa-Vallejo, Zacarias Sanchez-Mila, Hend Adel Abdelhalim Dorgham, Ahmed Ebrahim Elerian, Tian Yu, Cesar Calvo-Lobo, Jorge Velazquez-Saornil, Eva Maria Martinez Jimene
Summary: This study aimed to evaluate the diagnostic accuracy of a new test for identifying Achilles tendinopathy. Using an observational study design, 70 patients with unilateral Achilles tendinopathy were tested using David's test. The results showed that asymmetry of Kager's fat pad in relation to the Achilles tendon during passive dorsiflexion is strongly indicative of tendinopathy, with a sensitivity of 85.71% and a specificity of 100%.
JOURNAL OF CLINICAL MEDICINE
(2023)
Article
Sport Sciences
Nili Steinberg, Michal Pantanowitz, Shany Funk, Shani Svorai Band, Gordon Waddington, Nirit Yavnai, Aviva Zeev
Summary: The study found that tendon structure, specifically echo-types III and IV in the patellar tendon (PT) and echo-type III in the Achilles tendon (AT), may be risk factors for musculoskeletal injuries in combat soldiers. Participants with PT echo-type III + IV > 10%or AT echo-type III > 8.5% had the highest risk of being injured during the course. High-risk soldiers/athletes should undergo intervention programs to prevent subsequent injury.
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2021)
Article
Chemistry, Analytical
Mohamadreza Kharazi, Christos Theodorakis, Falk Mersmann, Adamantios Arampatzis, Sebastian Bohm
Summary: The study aimed to simplify the measurement of Achilles tendon curvature by reducing the number of markers while maintaining high accuracy. Results showed that using only 30% to 50% of the marker set can maintain high accuracy in determining AT length and strain, which is useful for practical applications.
Article
Multidisciplinary Sciences
Michael Esposito, John W. Wannop, Darren J. Stefanyshyn
Summary: The study aimed to investigate the impact of footwear midsole material on running performance and found that changes in midsole stiffness can improve performance by increasing energy return from the Achilles tendon. These findings suggest that increasing energy return from the Achilles could be a valid mechanism for improving running performance.
SCIENTIFIC REPORTS
(2022)
Article
Biophysics
Keshia E. Mora, Samuel J. Mlawer, Albert J. Bae, Michael S. Richards, Alayna E. Loiselle, Mark R. Buckley
Summary: Prior to inserting into bone, healthy tendons experience impingement from nearby bony structures. Excessive impingement is associated with tendon pathology. This study found that passive dorsiflexion in mice leads to significant transverse compressive strain at the tendon insertion point.
JOURNAL OF BIOMECHANICS
(2022)
Article
Biophysics
Paolo Tecchio, Paola Zamparo, Francesca Nardello, Andrea Monte
Summary: The mechanical properties of the Achilles tendon (AT) can be estimated using different approaches. This study compared a straight-line method with a curvilinear method and found that the choice of method significantly affected the measured parameters. The curvilinear method resulted in lower internal moment arm and higher tendon length, leading to higher estimates of force and power. Neglecting the AT curvature could result in underestimation of these properties.
JOURNAL OF BIOMECHANICS
(2022)
Article
Multidisciplinary Sciences
Sasa Cigoja, Jared R. Fletcher, Michael Esposito, Darren J. Stefanyshyn, Benno M. Nigg
Summary: The study found that running in shoes with increased midsole bending stiffness leads to reduced muscle fascicle shortening and velocity in the gastrocnemius muscle, as well as increased energy return in the Achilles tendon.
SCIENTIFIC REPORTS
(2021)
Article
Hospitality, Leisure, Sport & Tourism
Marta Izquierdo-Renau, Ana Queralt, Alberto Encarnacion-Martinez, Pedro Perez-Soriano
Summary: The study aimed to investigate the impact of running with minimalist footwear on foot-impact accelerations during a prolonged run. Results showed that minimalist shoes increased stride frequency, decreased stride length, and resulted in higher impact acceleration, potentially increasing the risk of injury.
RESEARCH QUARTERLY FOR EXERCISE AND SPORT
(2021)
Article
Rehabilitation
Yanan Zheng, Ying Zhang, Hongli Li, Lei Qiao, Weijie Fu, Long Yu, Gaiyan Li, Jianzhong Yang, Weidong Ni, Zhijie Yong, Yanmin Wang, Hang Fan
Summary: This study compared the effects of Liuzijue Qigong and conventional respiratory training on stroke patients and found that Liuzijue exercise showed more changes in improving trunk control ability, respiratory muscle functions, and activities of daily living ability in patients at an early recovery stage from stroke.
ARCHIVES OF PHYSICAL MEDICINE AND REHABILITATION
(2021)
Article
Engineering, Biomedical
Yang Yang, Changxiao Yu, Chenhao Yang, Liqin Deng, Weijie Fu
Summary: The study aimed to investigate the effects of landing tasks on the activation of lower-extremity muscles and explore the relationship among movement control, landing heights, shoe cushioning, and muscle activities. The results showed that highly-cushioned basketball shoes can significantly influence the activation patterns of lower-extremity muscles and reduce the risk of injuries by appropriately tuning the muscles during landing.
ISOKINETICS AND EXERCISE SCIENCE
(2023)
Article
Biology
Changxiao Yu, Liqin Deng, Li Li, Xini Zhang, Weijie Fu
Summary: The Achilles tendon can be improved in terms of its mechanical properties through physical exercise, especially with long-term and low-intensity eccentric training.
Article
Biotechnology & Applied Microbiology
Faning Zhang, Dongqiang Ye, Xini Zhang, Xiaole Sun, Shen Zhang, Shaobai Wang, Weijie Fu
Summary: The study investigated the differences in the six-degree-of-freedom (6DOF) kinematics of the first metatarsophalangeal joint (MTPJ) between shod and barefoot running. The results showed that wearing shoes limited the flexion and extension movement of the first MTPJ and increased the adduction angle, potentially increasing the risk of hallux valgus.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Songlin Xiao, Baofeng Wang, Xini Zhang, Junhong Zhou, Weijie Fu
Summary: This study found that high-definition transcranial direct current stimulation (HD-tDCS) and foot core exercise (FCE) have distinct benefits on foot sensorimotor function and standing postural control. HD-tDCS improves toe flexor strength and passive ankle kinesthesia thresholds, while FCE enhances foot muscle strength and improves postural control performance.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Biotechnology & Applied Microbiology
Wanyan Su, Shen Zhang, Dongqiang Ye, Xiaole Sun, Xini Zhang, Weijie Fu
Summary: This study investigated the differences in the kinematics of the medial longitudinal arch (MLA) between shod and barefoot running. The high-speed dual fluoroscopic imaging system was used to acquire radiographic images of MLA movements. The results showed that shoe-wearing limited the movement of the MLA, especially reducing the MLA angles, suggesting a restriction in the compression and recoil of the MLA.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Review
Neurosciences
Changxiao Yu, Songlin Xiao, Baofeng Wang, Jiaxin Luo, Cuixian Liu, Junhong Zhou, Weijie Fu, Jing Jin
Summary: This study systematically summarized and analyzed the effect of a-tDCS on lower extremity sensorimotor control under different experimental conditions. The findings demonstrated that a-tDCS can effectively improve the capabilities of lower extremity sensorimotor control, particularly in gait speed and time-on-task. In-depth and rigorous experimental protocols with larger sample sizes and combining brain imaging technology to explore the mechanism have a profound impact on the development of tDCS.
Article
Engineering, Biomedical
Songlin Xiao, Baofeng Wang, Changxiao Yu, Bin Shen, Xini Zhang, Dongqiang Ye, Liqin Deng, Yongxin Xu, Junhong Zhou, Weijie Fu
Summary: This study aimed to investigate the effects of combining transcranial direct current stimulation (tDCS) and foot core exercise (FCE) on foot sensorimotor function and static balance. The results showed that tDCS combined with FCE could improve toe flexor strength and decrease the passive ankle kinesthesia threshold. However, no significant differences were observed in static balance between the tDCS + FCE group and the control group.
JOURNAL OF NEUROENGINEERING AND REHABILITATION
(2022)
Article
Biotechnology & Applied Microbiology
Bin Shen, Shen Zhang, Kedong Cui, Xini Zhang, Weijie Fu
Summary: This study investigates the effects of a 12-week gait retraining program combined with foot core exercise on arch morphology, muscle strength, and kinematics. The findings suggest that this combined intervention improves arch posture and function with moderate to large effects, making it a superior approach compared to standalone interventions.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Geriatrics & Gerontology
Rong Cui, Hongtao Liu, Meng Li, Jie Wang, Junjie Mao, Weidong Ni, Furong Wang, Jingxian Pan, Long Yu, Yan Wang, Yanmin Wang, Pufeng Huang, Gaiyan Li, Yi Zhao, Ning Zhu, Chen Chen, Ziyang Pan, Ying Zhang, Weijie Fu, Jianzhong Yang
Summary: This study examined the effects of Waist as the Axis Therapy (WAT) on stroke patients. The experimental group who received WAT plus conventional therapy showed significantly better outcomes in trunk impairment, intra-abdominal pressure, upper and lower extremity motor function, and forced vital capacity compared to the control group.
FRONTIERS IN AGING NEUROSCIENCE
(2023)
Article
Biotechnology & Applied Microbiology
Xiaole Sun, Wanyan Su, Faning Zhang, Dongqiang Ye, Shaobai Wang, Shen Zhang, Weijie Fu
Summary: This study used a high-speed dual fluoroscopic imaging system (DFIS) to investigate the motion of the medial longitudinal arch (MLA), first metatarsophalangeal joint (MTPJ), and plantar fascia (PF) during running, and examined the effects of forefoot strike (FFS) on the kinematics of these structures. The results showed that FFS significantly increased the range of motion of the MLA and first MTPJ, as well as the strain and power of the PF.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Neurosciences
Songlin Xiao, Bin Shen, Chuyi Zhang, Xini Zhang, Suyong Yang, Junhong Zhou, Weijie Fu
Summary: This study investigated the cortical responses and mechanism underlying changes in ankle force control task induced by transcranial direct current stimulation (tDCS). Results showed that the task decreased alpha and beta power spectral densities (PSDs) in the sensorimotor cortex, and tDCS decreased the task performance and beta PSD. There was a significant association between the changes in task performance and beta PSD. In conclusion, ankle force control task activated a distributed cortical network and tDCS enhanced ankle force control and modulated beta-band activity in the sensorimotor cortex.
Article
Biotechnology & Applied Microbiology
Lu Li, Kaicheng Wu, Liqin Deng, Cuixian Liu, Weijie Fu
Summary: This study aimed to investigate the effects of two main foot strike patterns on the morphological and mechanical characteristics of the medial gastrocnemius-Achilles tendon unit (gMTU). The results showed that compared to the non-runners group, the forefoot strike group had longer muscle fascicle length and smaller pennation angle of the medial gastrocnemius, indicating that a forefoot strike pattern could protect the muscle from strain under repetitive high loads.
BIOENGINEERING-BASEL
(2023)
Article
Biotechnology & Applied Microbiology
Jun Li, Kaicheng Wu, Dongqiang Ye, Liqin Deng, Jichao Wang, Weijie Fu
Summary: The purpose of this study was to compare the biomechanics of the lower extremity during AJRS under barefoot and shod conditions. The results showed that wearing shoes decreased the range of motion and peak angular velocity of the MTP joint, but increased the joint power and reduced the peak loading rate. These findings suggest that wearing shoes during AJRS could provide better propulsion, emphasizing the importance of the ankle and MTP joint.
BIOENGINEERING-BASEL
(2023)
Review
Biotechnology & Applied Microbiology
Songlin Xiao, Bin Shen, Chuyi Zhang, Zhen Xu, Jingjing Li, Weijie Fu, Jing Jin
Summary: This review summarizes the research on the effects of tDCS on foot biomechanics and its clinical applications. The findings suggest that tDCS can improve foot biomechanical characteristics in healthy adults and has potential applications in foot sports medicine. However, further research is needed to confirm its efficacy in rehabilitating common musculoskeletal injuries.
BIOENGINEERING-BASEL
(2023)