The aim of this study was to investigate changes in shot put performance, muscular power, and neuromuscular activation of the lower extremities, between the preseason and the competition period, in skilled shot put athletes using the rotational technique. Shot put performance was assessed at the start of the pre-season period as well as after 12 weeks, at the competition period, in nine shot pu...

OBJECTIVES The aims of this study were to detect the acetylcarnitine resonance line at 2.13 ppm in the human vastus lateralis and soleus muscles, assess T1 and T2 relaxation times, and investigate the diurnal and exercise-related changes in absolute concentration noninvasively, using proton magnetic resonance spectroscopy at 7 T. MATERIALS AND METHODS All measurements were performed on a 7 T ...

The role of methionine enkephalin (ME) neurons in the development of genetic hypertension in SHR is the subject of this study. Methionine enkephalin-like immunoreactivity (MELI) and ME receptor binding (MERB) levels were assayed quantitatively by microdensitometry of fluorescence micrographs and autoradiographs of 85 cerebral nuclei and areas of both young and adult spontaneously hypertensive r...

The aim of this study was to evaluate the effect of neuromuscular fatigue on vastus medialis and vastus lateralis co-contraction. Fifteen healthy young subjects performed an isometric leg extension test in two different condition phases: i) maximum test for determining the maximum voluntary isometric contraction, and ii) fatigue test for exercises executed at 50% of the maximum voluntary contra...

Sarcolipin (SLN) and phospholamban (PLN) inhibit the activity of sarco(endo)plasmic reticulum Ca(2+)-ATPases (SERCAs) by reducing their apparent affinity for Ca(2+). A ternary complex between SLN, PLN, and SERCAs results in super-inhibition of SERCA activity. Analysis of skeletal muscle homogenate has limited our current understanding of whether SLN and PLN regulate SERCA1a, SERCA2a, or both in...

The purpose of the present study was to evaluate the acute effects of an upper limb static-stretching (SS) protocol on the maximal concentric jump performance. We recruited 25 young healthy, male, resistance trained individuals (stretched group, n = 15 and control group, n = 10) in this study. The randomized between group experimental protocol consisted of a three trials of maximal concentric j...

Abstract The number of fireflies in Japan has decreased with the development cities and industries. As a first step toward regeneration an environment for fireflies, we report attempt to breed aquatic firefly larvae. Focusing on operational stability equipment used, use safety evaluation method like that employed petrochemical plants. death larvae is major risk breeding. larval scenario analyze...

Discrepancies exist regarding the involvement of cellular inflammation and apoptosis in the muscle dysfunction of chronic obstructive pulmonary disease (COPD) patients with preserved body composition. We explored whether levels of inflammatory cells and apoptosis were increased in both respiratory and limb muscles of COPD patients without nutritional abnormalities. In the vastus lateralis, exte...

OBJECTIVE This investigation explored how aerobic interval training influences central or peripheral hemodynamic response(s) to exercise in patients with heart failure (HF) with preserved ejection fraction (HFpEF) or those with HF with reduced ejection fraction (HFrEF). DESIGN One hundred twenty HF patients were divided into four groups: HFpEF and HFrEF with aerobic interval training (3-min i...