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The Effects of Social Feedback Through the "Like" Feature on Brain Activity: A Systematic Review.
Healthcare (Basel)
January 2025
Laboratory of Neuropsychophysiology, Faculty of Psychology and Education Sciences, University of Porto, 4200-135 Porto, Portugal.
Background: Problematic social media (SM) use is a growing concern, particularly among adolescents who are drawn to these platforms for social interactions important to their age group. SM dependence is characterized by excessive, uncontrolled usage that impairs personal, social, and professional aspects. Despite the ongoing debate over recognizing SM addiction as a distinct diagnostic category, the impact of social feedback, particularly through the "like" button, on brain activity remains under scrutiny.
View Article and Find Full Text PDFAbnormal functional hubs in migraine patients: a resting-state MRI analysis about voxel-wise degree centrality.
J Oral Facial Pain Headache
March 2024
Department of Acupuncture and Moxibustion, Dongzhimen Hospital Beijing University of Chinese Medicine, 100700 Beijing, China.
The purpose was to explore the spatial centrality of the whole brain functional network related to migraine and to investigate the potential functional hubs associated with migraine. 32 migraine patients and 55 healthy controls were recruited and they received resting-state functional magnetic resonance imaging voluntarily. Voxel-wise Degree Centrality (DC) was measured across the whole brain, and group differences in DC were compared.
View Article and Find Full Text PDFCharacterizing the vestibular control of balance in the intrinsic foot muscles.
Gait Posture
December 2024
School of Health and Exercise Sciences, The University of British Columbia Okanagan, Kelowna, British Columbia, Canada. Electronic address:
Background: To maintain standing balance, vestibular cues are processed and integrated with other sensorimotor signals to produce appropriate motor adjustments. Whole-body vestibular-driven postural responses are context-dependent and transformed based upon head and foot posture. Previous reports indicate the importance of intrinsic foot muscles during standing, but it is unclear how vestibular-driven responses of these muscles are modulated by alterations in stability and head posture.
View Article and Find Full Text PDFOsteochondral Allograft Transplantation as a Salvage Procedure After Failed Index Cartilage Surgery of the Knee: A Systematic Review.
Am J Sports Med
January 2025
Department of Orthopaedic Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA.
Background: Osteochondral allograft transplantation (OCA) is well established as a viable chondral restoration procedure for the treatment of symptomatic, focal chondral defects of the knee. The efficacy of secondary OCA in the setting of failed index cartilage repair or restoration is poorly understood.
Purpose: To evaluate radiographic and clinical outcomes, failures, and reoperations after OCA after failed index cartilage repair or restoration of the knee.
Knee position affects medial gastrocnemius and soleus activation during dynamic plantarflexion: no evidence for an inter-muscle compensation in healthy young adults.
Biol Open
December 2024
Department of Kinesiology, Hungarian University of Sports Sciences, Alkotás utca 44-48, Budapest 1123, Hungary.
Knee joint position influences ankle torque, but it is unclear whether the soleus compensates to counteract the reductions in gastrocnemius output during knee-flexed versus knee-extended plantarflexions. Therefore, the purpose of this study was to determine the effects of knee joint position and plantarflexion contraction velocity on ankle plantarflexion torque and electromyography activity of the medial gastrocnemius and soleus in healthy young adults. Healthy male participants (n=30) performed concentric plantar flexions in a custom-built dynamometer from 15° dorsiflexion to 30° plantarflexion at gradually increasing velocities during each contraction at 30, 60, 120, 180, and 210° s-1 in a supine position with the knee fully extended and while kneeling with the knee fixed in 90° flexion.
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