Search results for "Muscle"
showing 10 items of 3397 documents
Heat shock protein 70 and exercise: morphofunctional relationships
2008
Cold Exposure Affects Lipid Metabolism, Fatty Acids Composition and Transcription in Pig Skeletal Muscle
2021
Cold exposure promotes glucose oxidation and modulates the lipid metabolism in adipose tissue, but it is still not fully clear whether cold exposure could affect meat quality and fatty acid metabolism in skeletal muscle of pig in vivo. Here, we kept finishing pigs under cold or room temperature overnight and determined the effects of cold exposure on meat quality, fatty acids composition and transcriptional changes in skeletal muscle of pigs. We found that cold exposure significantly reduced the meat colour24 h and pH24 h, without affecting carcass characteristics and other meat quality traits. Considerable changes were found in the proportions of individual fatty acids and the total conten…
Specific distribution of cross-sectional area in each hamstring muscle of sprint runners and relationship between those and sprint performance
2018
Zewnątrzustrojowa Fala Uderzeniowa (ESW) jako alternatywna metoda wspomagająca terapię porażenia spastycznego mięśni kończyn w wyniku udaru mózgu - p…
2017
Zewnątrzustrojowa fala uderzeniowa (ESW – Extracorporeal Shock Wave) jest czynnikiem fizykalnym, którego zastosowanie kliniczne obserwowane jest w szerokiej gamie zaburzeń chorobowych, szczególnie dysfunkcji narządu ruchu. Obecnie zaobserwować można, iż lista wskazań do zabiegów ESW stale rośnie i obejmuje swym zasięgiem coraz to bardziej odmienne pod względem etiologii i patomechanizmu schorzenia ogólnoustrojowe. Niemniej jednak pamiętać należy, iż potencjalne mechanizmy biologiczne stymulacji ESW, warunkujące korzystne i pożądane efekty terapeutyczne, nie są jednoznacznie wyjaśnione. W świecie nauki w dalszym ciągu obserwowany jest brak niepodważalnych dowodów popartych zaawansowanymi bad…
Postmortem Electrical Conductivity Changes of Dicentrarchus labrax Skeletal Muscle: Root Mean Square (RMS) Parameter in Estimating Time since Death
2022
Electric impedance spectroscopy techniques have been widely employed to study basic biological processes, and recently explored to estimate postmortem interval (PMI). However, the most-relevant parameter to approximate PMI has not been recognized so far. This study investigated electrical conductivity changes in muscle of 18 sea bass specimens, maintained at different room temperatures (15.0 °C; 20.0 °C; 25.0 °C), during a 24 h postmortem period using an oscilloscope coupled with a signal generator, as innovative technology. The root mean square (RMS) was selected among all measured parameters, and recorded every 15 min for 24 h after death. The RMS(t) time series for each anima…
In vivo triceps surae and quadriceps femoris muscle function in a squat jump and counter movement jump
2000
An optic fibre method was used to measure in humans in vivo Achilles (ATF) and patellar tendon forces (PTF) during submaximal squat jumps (SJ) and counter movement jumps (CMJ). Normal two-legged jumps on a force plate and one-legged jumps on a sledge apparatus were made by four volunteers. Kinetics, kinematics, and muscle activity from seven muscles were recorded. The loading patterns of the tendomuscular system differed among the jumping conditions, but were similar when the jumping height was varied. Peak PTF were greater than ATF in each condition. In contrast to earlier simulation studies it was observed that tendomuscular force could continue to increase during the shortening of muscle…
The Healthy Body Image intervention and reduction in eating disorder symptomatology and muscle building supplement use in high school students: a stu…
2022
BackgroundMediation analysis is important to test the theoretical framework underpinning an intervention. We therefore aimed to investigate if the healthy body image (HBI) intervention’s effect on eating disorder (ED) symptomatology and use of muscle building supplements was mediated by the change in risk and protective factors for ED development and muscle building supplement use.MethodsThis study used data from the HBI intervention: a cluster randomized controlled universal intervention aiming to promote positive body image and embodiment and reduce the risk for ED development including 30 schools in Norway. A total of 1,713 (37% boys) participants were included in the analyses. Condition…
Influences of muscle, fat and hormones on bone development in women : a cross-sectional and longitudinal study spanning three generations
2011
Bone, fat and muscle gain in pubertal girls : effects of physical activity
2010
A control strategy based on intelligent algorithm (PSO) to perform electrical stimulation systems
2017
International audience; Adjusting stimulation parameters using control strategy based on reliable mathematical model that can predict perfectly the muscle response, may improve the efficiency of Functional Electrical Stimulation (FES) systems. In the present project, we investigate the PID control tuning based on the Particle Swarm Optimization (PSO) algorithm at the first time in neuro-muscular systems for updating automatically the stimulation pulse amplitude to track a desired force profiles. In the beginning, The PSO algorithm is used to identify unknown force model parameters. Next, optimal PID gains are found by the same intelligent algorithm to improve the control system. The obtaine…