ABSTRACT Introduction: Near infrared spectroscopy (NIRS) is a non-invasive technique that used in the assessment of tissue oxygenation and monitoring physical activity. Objective: To determine influence sexual, anthropometric ergospirometric factors on muscle quadriceps gastrocnemius, obtained by NIRS during stress test. Methods: Twenty healthy subjects participated this study (10 women). Two H...

Only a small number of muscle activation patterns from lower limbs have been reported and simultaneous several limb muscles not yet investigated. The purpose this study was to examine any gender differences in surface electromyography (EMG) activity six recorded the dominant at baseline (i.e., with foot placed flat on floor neutral position), during concentric eccentric phases when performing h...

To develop a more effective and safer treatment for sarcopenia, this research investigated the anti-sarcopenia mechanism of Milk Fat Globule Epidermal Growth Factor Ⅷ (MFG-E8) from liver function metabolism in sarcopenic model rat. After 4 weeks nutritional intervention experiment, MFG-E8 can significantly increase gastrocnemius mass The improving sarcopenia was related to its promotional capac...

AIMS To investigate differential muscle atrophy during bed-rest, the impact of a high-intensity concentric-eccentric (flywheel) resistance exercise countermeasure and muscle recovery after bed-rest. METHODS Twenty-five healthy male subjects underwent 90 dayshead-down tilt bed-rest. Volume of individual lower-limb muscles was measured via MRI before, twice during and four times up to 1 year af...

Growth and differentiation factor-11 (GDF-11) is a secreted protein that is closely related to myostatin, a known inhibitor of skeletal muscle development. The role of GDF-11 in regulating skeletal muscle growth remains unclear and the pattern of expression during post-natal growth has not been reported. Therefore, we sought to determine the expression of GDF-11 during post-natal growth and its...

Loss of muscle mass and strength represents one of the most significant contributors to impaired function in older adults. Convenient and non-invasive biomarkers are needed that can readily identify and track age-related muscle change. Previous data has suggested electrical impedance myography (EIM) has the potential to serve in this capacity. In this study we investigated how changes in EIM co...

Myotendinous junction is the transition zone between muscle and its tendon. Hence, it subject to immense stress within muscle. In this study, found that muscles having a greater tensile have more arranged myotendinous compared with lesser strength. Cadaveric specimens - plantaris, gastrocnemius, soleus been histologically studied study same.

Many diseases are associated with catabolic conditions that induce skeletal muscle wasting. These various catabolic states may have similar and distinct mechanisms for inducing muscle protein loss. Mechanisms related to muscle wasting may also be related to muscle metabolism since glycolytic muscle fibers have greater wasting susceptibility with several diseases. The purpose of this study was t...

BACKGROUND Mechanical loading is crucial for muscle and tendon tissue remodeling. Eccentric heel drop exercise has been proven to be effective in the management of Achilles tendinopathy, yet its induced change in the mechanical property (i.e., stiffness) of the Achilles tendon (AT), medial and lateral gastrocnemius muscles (MG and LG) was unknown. Given that shear wave elastography has emerged ...

Using next-generation, transcriptome-wide RNA sequencing (RNA-Seq) technology we assessed the effects of exercise training on transcriptional profiles in skeletal muscle arterioles isolated from the soleus and gastrocnemius muscles of Otsuka Long Evans Tokushima Fatty (OLETF) rats that underwent an endurance exercise training program (EX; n = 13), interval sprint training program (SPRINT; n = 1...