Article
Sport Sciences
Ryoichi Ema, Kazunori Nosaka, Ryosuke Kawashima, Akihiro Kanda, Koya Ikeda, Ryota Akagi
Summary: The study confirmed that rectus femoris (RF) damage is greater in the supine position compared to the sitting position, especially at the proximal region, but did not support the hypothesis about the repeated bout effect (RBE).
SCANDINAVIAN JOURNAL OF MEDICINE & SCIENCE IN SPORTS
(2021)
Article
Multidisciplinary Sciences
Kyoungsoon Kim, Tunc Akbas, Robert Lee, Kathleen Manella, James Sulzer
Summary: Hyperreflexia is common after neurological injury such as stroke, and reducing hyperreflexia may improve walking function in those with Stiff-Knee gait (SKG) after stroke. This feasibility study trained participants to down-condition the rectus femoris (RF) H-reflex using visual feedback. The study found a decrease in RF H-reflex amplitude, improvements in peak knee-flexion velocity, reflex excitability during walking, and clinical measures of spasticity in post-stroke individuals. These promising initial results suggest that operant RF H-reflex conditioning could be a targeted alternative in spasticity management.
SCIENTIFIC REPORTS
(2023)
Article
Medicine, General & Internal
Nobuto Nakanishi, Shigeaki Inoue, Rie Tsutsumi, Yusuke Akimoto, Yuko Ono, Joji Kotani, Hiroshi Sakaue, Jun Oto
Summary: Ultrasound has been widely used for measuring the rectus femoris muscle in critical illness, but its accuracy depends on various factors. A novel phantom model was created to investigate the accuracy of measurements and for training, showing improvements in accuracy through training.
JOURNAL OF CLINICAL MEDICINE
(2021)
Article
Neurosciences
Ryoichi Ema
Summary: This study examined the neuromuscular activations of thigh muscles during concentric and eccentric cycling. The results showed that the activation of thigh muscles was higher during concentric cycling compared to eccentric cycling. However, the activation of the rectus femoris muscle was lower during concentric cycling at lower power outputs. The perceived exertion was similar between certain power outputs. There were no significant differences in the activation of vastus lateralis and biceps femoris muscles between concentric and eccentric cycling, but the rectus femoris muscle had higher activation during eccentric cycling. There were no regional differences in rectus femoris activations.
JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY
(2022)
Article
Biology
Matthew Rong Jie Tay, Keng He Kong
Summary: This study investigated the relationship between rectus femoris muscle ultrasound characteristics and functional outcomes in patients with incomplete spinal cord injury. The results showed that rectus femoris muscle thickness was significantly correlated with discharge muscle score, functional independence, and walking index, while rectus femoris echo intensity was significantly correlated with these functional measures as well. Ultrasound muscle measurements have the potential to assess muscle wasting and function in patients with spinal cord injury.
Article
Multidisciplinary Sciences
Paul Ritsche, Philipp Wirth, Martino Franchi, Oliver Faude
Summary: This study presents a novel semi-automatic ImageJ script (ACSAuto) for quantifying lower limb muscle ACSA, which shows good reliability compared to manual analysis. The script demonstrates high consistency and small mean bias when compared to manual measurements, potentially reducing time needed for evaluating ultrasound images.
SCIENTIFIC REPORTS
(2021)
Article
Acoustics
Yen-Lung Chen, Peng-Ta Liu, Huihua K. Chiang, Si-Huei Lee, Yen-Li Lo, Yueh-Cheng Yang, Hong-Jen Chiou
Summary: Ultrasound-derived RF muscle volume was accurate in predicting ASMI and diagnosing sarcopenia in community-dwelling adults.
JOURNAL OF ULTRASOUND IN MEDICINE
(2022)
Article
Medicine, General & Internal
Yongmin Choi, Sun Im, Geun-Young Park
Summary: This study investigated the ultrasound characteristics of the rectus femoris for sarcopenia detected by DEXA in the early subacute stroke phase. The findings suggest that TRF on the non-paretic side is a key factor for quantitative evaluation of sarcopenia, while the EI to TRF ratio on the paretic side is also a meaningful qualitative evaluation of sarcopenia.
JOURNAL OF CLINICAL MEDICINE
(2021)
Article
Chemistry, Multidisciplinary
Fermin Naranjo-Cinto, Daniel Pecos-Martin, Juan Nicolas Cuenca-Zaldivar, Alexander Achalandabaso-Ochoa, Jessica Quintero-Perez, Pilar Bierge-Sanclemente, Maria Garcia-Escudero, Samuel Fernandez-Carnero
Summary: This study aimed to determine the relationship between the behavior of the rectus femoris and vastus intermedius muscles measured by rehabilitative ultrasound imaging and anthropometric measurements. The results showed that there were significant correlations between the thickness and contraction of the vastus intermedius muscle and thigh perimetry, as well as the length of the rectus femoris muscle and dominant lower limb length.
APPLIED SCIENCES-BASEL
(2023)
Article
Hospitality, Leisure, Sport & Tourism
Patricio A. Pincheira, Melissa A. Boswell, Martino Franchi, Scott L. Delp, Glen A. Lichtwark
Summary: The study found that the increase in fascicle length in the distal region of the BFlh after eccentric exercise training is mainly attributed to the increase in sarcomere length, rather than the addition of sarcomeres in series. The mechanism underlying this regional increase remains unknown.
JOURNAL OF SPORT AND HEALTH SCIENCE
(2022)
Article
Sport Sciences
Stephanie Hody, Blair E. Warren, Dominique-Marie Votion, Bernard Rogister, Helene Lemieux
Summary: This study investigates the impact of eccentric exercise on mitochondrial function. The results show that eccentric exercise leads to a decrease in muscle oxidative phosphorylation capacity and mainly affects the distal muscle portion. This study provides new perspectives on the mitochondrial adaptation associated with eccentric exercise.
MEDICINE & SCIENCE IN SPORTS & EXERCISE
(2022)
Article
Medicine, Research & Experimental
Milad Azad, Neda Khaledi, Mehdi Hedayati, Mohammadreza Karbalaie
Summary: The study revealed that the apoptotic response to exercise depends on the type and intensity of exercise, as well as the sensitivity and susceptibility of the muscle. Acute and chronic exercise can significantly affect apoptotic responses in different types of muscles.
Article
Physiology
Mingming Deng, Xiaoming Zhou, Yanxia Li, Yan Yin, Chaonan Liang, Qin Zhang, Jingwen Lu, Mengchan Wang, Yu Wang, Yue Sun, Ruixia Li, Liming Yan, Qiuyue Wang, Gang Hou
Summary: This study explores the feasibility of shear wave ultrasound elastography (SWE) in measuring the stiffness of the rectus femoris muscle and finds that SWE is a promising tool for predicting sarcopenia in patients with chronic obstructive pulmonary disease (COPD).
FRONTIERS IN PHYSIOLOGY
(2022)
Article
Neurosciences
Yu Okubo, Koji Kaneoka, Kiyotaka Hasebe, Naoto Matsunaga, Atsushi Imai, Paul W. Hodges
Summary: The study investigated the activation of hip flexor and abdominal muscles during ASLR, finding that PM and RF had earlier EMG onsets, with PM showing highest activation in late concentric and hold phases, and OI/TrA having significantly increased activation in the concentric phase.
JOURNAL OF ELECTROMYOGRAPHY AND KINESIOLOGY
(2021)
Article
Physiology
Taiki Kodesho, Keigo Taniguchi, Takuya Kato, Masaki Katayose
Summary: The study aimed to investigate intramuscular regional differences in the shear modulus of the rectus femoris muscle during passive knee flexion and the relationship between shear modulus and passive knee extension torque. The results showed that the shear modulus of the rectus femoris increased with knee flexion angle and was higher in the proximal region. Additionally, there was a strong relationship between shear modulus and passive torque, indicating that passive knee extension torque reflects passive muscle stiffness of the rectus femoris.
EUROPEAN JOURNAL OF APPLIED PHYSIOLOGY
(2021)
Article
Dentistry, Oral Surgery & Medicine
Ziyu Li, Jialiang Zhou, Lixia Yu, Shushu He, Fei Li, Yao Lin, Jingchen Xu, Song Chen
Summary: This study quantitatively evaluated the efficacy of stabilization splint therapy and arthrocentesis plus hyaluronic acid injection therapy for anterior disc displacement through MRI. The results showed that stabilization splint therapy effectively improved the disc-condyle relationship, while arthrocentesis plus hyaluronic acid injection therapy did not show significant improvement.
Article
Radiology, Nuclear Medicine & Medical Imaging
Xipeng Long, Yushan Zhou, Feifei Zhang, Fei Li, Xiuli Wang, Yajing Meng, Neil Roberts, Bochao Cheng, Zhiyun Jia
Summary: This study used DTI and AFQ techniques to explore the changes in brain structural connectivity in mothers with PPD. The results showed that women with PPD had significant alterations in the microstructure of certain white matter tracts compared to women without PPD. The damage to these structures may be related to impaired emotional regulation and mother-infant bonding in PPD patients.
JOURNAL OF MAGNETIC RESONANCE IMAGING
(2023)
Article
Oncology
Shuchen Chen, Wanyi Huang, Zhenzhen Liu, Meizi Jin, Jielin Li, Lihui Meng, Ting Li, Yuzhu Diao, Hong Gao, Chengyu Hong, Jian Zheng, Fei Li, Yue Zhang, Dan Bi, Lin Teng, Xiaoling Li
Summary: This study identifies nine mutant genes and smoking history associated with organ tropism metastases of NSCLC and provides three models for predicting metastatic organs.
Editorial Material
Radiology, Nuclear Medicine & Medical Imaging
Stefano Mandija, Chao Ma, Ruiliang Bai, Li Feng, Francesco Giganti, Andrada Ianus, Hong-Hsi Lee, Fei Li, Thomas Welton, Fernando Calamante
JOURNAL OF MAGNETIC RESONANCE IMAGING
(2023)
Letter
Radiology, Nuclear Medicine & Medical Imaging
Stefano Mandija, Chao Ma, Ruiliang Bai, Li Feng, Francesco Giganti, Andrada Ianus, Hong-Hsi Lee, Fei Li, Thomas Welton, Fernando Calamante
MAGNETIC RESONANCE IN MEDICINE
(2023)
Article
Dentistry, Oral Surgery & Medicine
Yuanyuan Yin, Shushu He, Ning He, Wenjing Zhang, Lekai Luo, Lizhou Chen, Ting Liu, Mi Tian, Jingchen Xu, Song Chen, Fei Li
Summary: The study combines structural and functional MRI data to investigate the brain alterations in patients with temporomandibular disorder (TMD). The findings reveal abnormalities in sensorimotor and emotion processing and regulation regions, providing evidence for the biopsychosocial model of TMD and enhancing the understanding of its pathophysiological mechanism.
Article
Psychiatry
Qian Li, Li Yao, Wanfang You, Jiang Liu, Shikuang Deng, Bin Li, Lekai Luo, Youjin Zhao, Yuxia Wang, Yaxuan Wang, Qian Zhang, Fenghua Long, John A. Sweeney, Shi Gu, Fei Li, Qiyong Gong
Summary: Disrupted control of brain state transitions may contribute to the dysfunctions in schizophrenia. This study found that controllability of brain networks was altered and related to clinical symptoms in patients with schizophrenia. The altered controllability in the dorsal anterior cingulate cortex may play a critical role in the pathophysiology of schizophrenia.
SCHIZOPHRENIA BULLETIN
(2023)
Article
Genetics & Heredity
Xiugai Li, Chang Zheng, Xiaoxia Xue, Junying Wu, Fei Li, Dan Song, Xuelian Li
Summary: In this study, a macrophage-related signature (MRS) was developed to predict the prognosis of prostate cancer patients. The MRS showed stable and robust performance in predicting recurrence-free survival (RFS) and outperformed traditional clinical variables. Patients with a high MRS score had abundant macrophage infiltration and high expression levels of immune checkpoints, while those with a low MRS score exhibited better response to immune checkpoint blockade and adjuvant chemotherapy.
FUNCTIONAL & INTEGRATIVE GENOMICS
(2023)
Article
Ophthalmology
Ye Wu, Ling Xiong, Yuxia Wang, Qian Chen, Fei Li, Wenqiu Zhang, Longqian Liu
Summary: Recent studies have found that children with convergence insufficiency experience higher frequencies of performance-related symptoms, but data on performance-related symptoms among adults with accommodative dysfunctions and/or binocular dysfunctions are lacking. This study aimed to investigate the frequencies and symptom patterns in adults with these dysfunctions and explore the correlations between visual symptoms and clinical findings.
GRAEFES ARCHIVE FOR CLINICAL AND EXPERIMENTAL OPHTHALMOLOGY
(2023)
Article
Clinical Neurology
Feifei Zhang, Hongsheng Xie, Song Wang, Fei Li, Qiyong Gong, Zhiyun Jia
Summary: This study found that the volume of the right orbitofrontal cortex was negatively correlated with exercise addiction. The function of the right orbitofrontal cortex played an indirect role in exercise addiction and affected it through its volume. The volume of the right orbitofrontal cortex mediated the relationship between ability motivation and exercise addiction.
JOURNAL OF AFFECTIVE DISORDERS
(2023)
Review
Radiology, Nuclear Medicine & Medical Imaging
Yuan Feng, Matthew C. C. Murphy, Emi Hojo, Fei Li, Neil Roberts
Summary: Neurodegenerative diseases like AD and PD are a major health burden, but early diagnosis remains challenging. MRE, a noninvasive MRI technique, has been applied to study these diseases. Animal studies found decreased stiffness of the hippocampal region in AD mice, but results for disease progression varied. Clinical studies showed significant decreases in whole brain stiffness for both AD and PD, affecting different brain structures. MRE studies are in early stages, and further investigation is needed to understand the relationship between brain mechanical properties and clinical measures.
JOURNAL OF MAGNETIC RESONANCE IMAGING
(2023)
Review
Cell Biology
Yuxia Wang, Ye Wu, Lekai Luo, Fei Li
Summary: Amblyopia is the most common cause of vision loss in children and can persist into adulthood. A systematic review of magnetic resonance imaging studies was conducted to investigate brain alterations in patients with strabismic amblyopia and anisometropic amblyopia. The study revealed common and specific alterations in the brain that may contribute to a better understanding of the neural mechanisms underlying amblyopia.
NEURAL REGENERATION RESEARCH
(2023)
Article
Psychology, Clinical
Lekai Luo, Lizhou Chen, Yuxia Wang, Qian Li, Ning He, Yuanyuan Li, Wanfang You, Yaxuan Wang, Fenghua Long, Lanting Guo, Kui Luo, John A. Sweeney, Qiyong Gong, Fei Li
Summary: This study uses sparse canonical correlation analysis to identify four distinct patterns of dynamic functional brain activity associated with attention-deficit/hyperactivity disorder (ADHD). It also finds that cognitive deficits mediate the relationship between brain dynamics and ADHD-related behaviors. These findings provide important insights into the behavioral and cognitive features of ADHD.
PSYCHOLOGICAL MEDICINE
(2023)
Article
Psychiatry
Lekai Luo, Qian Li, Yaxuan Wang, Ning He, Yuxia Wang, Wanfang You, Qian Zhang, Fenghua Long, Lizhou Chen, Youjin Zhao, Li Yao, John A. Sweeney, Qiyong Gong, Fei Li
Summary: This study analyzed resting-state functional magnetic resonance imaging data of patients with OCD and patients with schizophrenia, finding both shared and disorder-specific disturbances in dynamic brain function. The findings suggest overlap in neocortical alterations in OCD and schizophrenia, and indicate the specific importance of the cerebellum in schizophrenia pathophysiology.
SCHIZOPHRENIA BULLETIN
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Fei Peng, Deqiu Tang, Weipeng Qing, Wei Chen, Shuhao Li, Yingkun Guo, Guanghua Luo, Heng Zhao
Summary: This study demonstrates that multi-parametric qMRI has effective diagnostic capabilities for early-stage DMD patients and can identify patients with mild physical decline.
JOURNAL OF MAGNETIC RESONANCE IMAGING
(2023)
