To assess early changes in muscle function and hypertrophy, measured as increases in muscle cross-sectional areas (CSAs) and total volume, over a 4 weeks inertial resistance training (RT) program. Ten young RT-naive volunteers (age 23.4 ± 4.1 years) underwent 10 training sessions (2-3 per week) consisting of five sets of 10 flywheel squats (moment of inertia 900 kg⋅cm). Magnetic resonance imaging (MRI) scans of both thighs were performed before (PRE), and after 2 (IN) and 4 (POST) weeks of training to compute individual muscle volumes and regional CSAs. Scans were performed after ≥96 h of recovery after training sessions, to avoid any influence of acute muscle swelling. PRE and POST regional muscle activation was assessed using muscle functional MRI (mfMRI) scans. Concentric (CON) and eccentric (ECC) squat force and power, as well as maximal voluntary isometric contraction force (MVIC) of knee extensors and flexors, were measured in every training session. Significant quadriceps hypertrophy was detected during (IN: 5.5% ± 1.9%) and after (POST: 8.6% ± 3.6%) the training program. Increases in squat force (CON: 32% ± 15%, ECC: 31 ± 15%) and power (CON: 51% ± 30%, ECC: 48% ± 27%) were observed over the training program. Knee extensor MVIC significantly increased 28% ± 17% after training, but no changes were seen in knee flexor MVIC. No correlation was found between regional muscular activation in the first session and the % of increase in regional CSAs ( = -0.043, = 0.164). This study reports the earliest onset of whole-muscle hypertrophy documented to date. The process initiates early and continues in response to RT, contributing to initial increases in force. The results call into question the reliability of mfMRI as a tool for predicting the potential hypertrophic effects of a given strengthening exercise.
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http://dx.doi.org/10.3389/fphys.2018.01265 | DOI Listing |
Augment Altern Commun
December 2024
Department of Special Education, College of Education, King Saud University, Riyadh, Saudi Arabia.
Request training can produce highly repetitive requests unless the setting is organized to encourage request diversity, particularly for individuals who depend on speech-generating devices (SGDs). Previous studies have shown that request training utilizing a lag schedule and progressive-time delay led to an increase in variability among children diagnosed with autism spectrum disorder (ASD). The impact of lag schedules on augmented requesting remains to be seen.
View Article and Find Full Text PDFInt J Ment Health Nurs
February 2025
Department of Head and Skin, Faculty of Medicine and Health Sciences, Ghent University & Ghent University Hospital, Ghent, Belgium.
Despite advancements in promoting family engagement in mental health settings, limited involvement of family members persists in forensic mental healthcare. Forensic mental healthcare professionals face various barriers in engaging families, including a patient-centered approach and resource constraints. However, limited understanding exists of professionals' experiences with family engagement, which is crucial for improving care practices in this setting.
View Article and Find Full Text PDFAnn Surg Oncol
December 2024
Department of Biliary-Pancreatic Surgery, Renji Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai, China.
Background: Pancreatic enucleation is a reliable surgical method for treating benign and borderline pancreatic tumors; however, the incidence of postoperative pancreatic fistula (POPF) is high, especially when the tumor is close to the main pancreatic duct. This study aimed to reduce the incidence of pancreatic fistula by preoperative placement of pancreatic stents and to summarize our center's experience with this procedure.
Methods: From June 2020 to July 2023, patients diagnosed with benign or borderline pancreatic tumors at Renji Hospital were included.
Eur J Med Res
December 2024
Department of Neurosurgery, Neuromedicine Center, Beijing Shijitan Hospital, Capital Medical University, No. 10, Tieyi Road, Yangfangdian, Haidian District, Beijing, 100038, People's Republic of China.
Background: Full-endoscopic microvascular decompression (fE-MVD) is an emerging treatment option for trigeminal neuralgia (TN). However, the risk factors associated with postoperative recurrence of TN after fE-MVD procedure remain controversial. The aim of the present study was to summarize the surgical technique of fE-MVD for the treatment of TN and to develop a predictive model for recurrence at 1 year postoperatively based on independent risk factors.
View Article and Find Full Text PDFBDJ Open
December 2024
Department of Medical Education, Virtual School of Medical Education and Management, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
Objective: This study investigates the effectiveness of a newly developed smartphone-based application for teaching population oral health needs assessment to undergraduate dental students.
Methods: Target population in this study consisted of all students of Shahid Beheshti School of dentistry in the 7 and 8 semesters in the year 2023. The intervention group (7 semester) received teaching about population oral health needs assessment based on the book "Oral health surveys; basic methods", by means of an application, while the control group (8 semester) received the same content through self-learning activity.
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