Exercise-Induced Changes in Muscle Size do not Contribute to Exercise-Induced Changes in Muscle Strength
نویسندگان
چکیده
منابع مشابه
Effect of muscle glycogen content on exercise-induced changes in muscle T2 times.
Effects of gastrocnemius glycogen (Gly) concentration on changes in transverse relaxation time (T2; ms) were studied after 5-min plantar flexion at 25% of maximum voluntary contraction (MVC). Gastrocnemius Gly, phosphorus metabolites, and T2 were measured in seven subjects by using interleaved 13C/31P magnetic resonance spectroscopy (MRS) at 4.7 T and magnetic resonance imaging (MRI; 1.5 T). Af...
متن کاملPrenatally induced changes in muscle structure and metabolic function facilitate exercise-induced obesity prevention.
Effective regulation of energy metabolism is vital for the maintenance of optimal health, and an inability to make these dynamic adjustments is a recognized cause of obesity and metabolic disorders. Epidemiological and experimental studies have highlighted the role of prenatal factors in the disease process, and it is now generally accepted that maternal nutrition during pregnancy significantly...
متن کاملCalcineurin does not mediate exercise-induced increase in muscle GLUT4.
Exercise induces a rapid increase in expression of the GLUT4 isoform of the glucose transporter in skeletal muscle. One of the signals responsible for this adaptation appears to be an increase in cytosolic Ca(2+). Myocyte enhancer factor 2A (MEF2A) is a transcription factor that is involved in the regulation of GLUT4 expression. It has been reported that the Ca(2+)-regulated phosphatase calcine...
متن کاملMigration- and exercise-induced changes to flight muscle size in migratory birds and association with IGF1 and myostatin mRNA expression.
Seasonal adjustments to muscle size in migratory birds may result from preparatory physiological changes or responses to changed workloads. The mechanisms controlling these changes in size are poorly understood. We investigated some potential mediators of flight muscle size (myostatin and insulin-like growth factor, IGF1) in pectoralis muscles of wild wintering or migrating white-throated sparr...
متن کاملHyperplasia in Exercise-Induced Muscle Growth?
Compensatory growth in response to exercise is an important adaptation mechanism of skeletal muscles, as they become in this way able to move heavier mechanical loads. The increase of muscle mass is primarily the result of the increase of muscle fibre size (fibre hypertrophy). Whether increase of fibre number (hyperplasia) also contributes to compensatory growth is still matter of debate. This ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Sports Medicine
سال: 2019
ISSN: 0112-1642,1179-2035
DOI: 10.1007/s40279-019-01106-9