Climbing-specific finger flexor performance and forearm muscle oxygenation in elite male and female sport climbers

2011 ◽  
Vol 112 (8) ◽  
pp. 2839-2847 ◽  
Author(s):  
Marc Philippe ◽  
Daniel Wegst ◽  
Tom Müller ◽  
Christian Raschner ◽  
Martin Burtscher
Keyword(s):  
Muscle Oxygenation ◽  
Male And Female ◽  
Forearm Muscle

scholarly journals Relationship between oxygenation in inactive biceps brachii muscle and hyperventilation during leg cycling

2007 ◽  
pp. 57-65
Author(s):  
H Ogata ◽  
T Arimitsu ◽  
R Matsuura ◽  
T Yunoki ◽  
M Horiuchi ◽  
...  
Keyword(s):  
Ventilatory Threshold ◽  
Biceps Brachii ◽  
Peak Oxygen Uptake ◽  
Muscle Oxygenation ◽  
Time Shift ◽  
Second Step ◽  
Biceps Brachii Muscle ◽  
Leg Cycling ◽  
Two Factors ◽  
Forearm Muscle

Inactive forearm muscle oxygenation has been reported to begin decreasing from the respiratory compensation point (RCP) during ramp leg cycling. From the RCP, hyperventilation occurs with a decrease in arterial CO2 pressure (PaCO2). The aim of this study was to determine which of these two factors, hyperventilation or decrease in PaCO2, is related to a decrease in inactive biceps brachii muscle oxygenation during leg cycling. Each subject (n = 7) performed a 6-min two-step leg cycling. The exercise intensity in the first step (3 min) was halfway between the ventilatory threshold and RCP (170+/-21 watts), while that in the second step (3 min) was halfway between the RCP and peak oxygen uptake (240+/-28 watts). The amount of hyperventilation and PaCO2 were calculated from gas parameters. The average cross correlation function in seven subjects between inactive muscle oxygenation and amount of hyperventilation showed a negative peak at the time shift of zero (r = -0.72, p<0.001), while that between inactive muscle oxygenation and calculated PaCO2 showed no peak near the time shift of zero. Thus, we concluded that decrease in oxygenation in inactive arm muscle is closely coupled with increase in the amount of hyperventilation.

scholarly journals Forearm muscle oxygenation decreases with low levels of voluntary contraction

1997 ◽  
Vol 15 (4) ◽  
pp. 507-511 ◽  
Author(s):  
Gita Murthy ◽  
Norman J. Kahan ◽  
Alan R. Hargens ◽  
David M. Rempel
Keyword(s):  
Voluntary Contraction ◽  
Muscle Oxygenation ◽  
Low Levels ◽  
Forearm Muscle

Inspiratory Muscle Training Improves Intercostal and Forearm Muscle Oxygenation in Patients With Chronic Heart Failure: Evidence of the Origin of the Respiratory Metaboreflex

2017 ◽  
Vol 23 (9) ◽  
pp. 672-679 ◽  
Author(s):  
Adalgiza M. Moreno ◽  
Alessandra C. Toledo-Arruda ◽  
Jéssica S. Lima ◽  
Carolina S. Duarte ◽  
Humberto Villacorta ◽  
...  
Keyword(s):  
Heart Failure ◽  
Chronic Heart Failure ◽  
Inspiratory Muscle ◽  
Muscle Oxygenation ◽  
Inspiratory Muscle Training ◽  
Muscle Training ◽  
Forearm Muscle

scholarly journals Forearm muscle oxygenation during sustained isometric contractions in rock climbers

2016 ◽  
Vol 51 (2) ◽  
pp. 48-55 ◽  
Author(s):  
Jan Kodejška ◽  
Michail L. Michailov ◽  
Jiří Baláš
Keyword(s):  
Muscle Oxygenation ◽  
Isometric Contractions ◽  
Forearm Muscle

Forearm muscle oxygenation responses during and following arterial occlusion in patients with mitochondrial myopathy

2014 ◽  
Vol 190 ◽  
pp. 70-75 ◽  
Author(s):  
Jan Boone ◽  
Bert Celie ◽  
Jasmien Dumortier ◽  
Thomas J. Barstow ◽  
Jan De Bleecker ◽  
...  
Keyword(s):  
Mitochondrial Myopathy ◽  
Arterial Occlusion ◽  
Muscle Oxygenation ◽  
Forearm Muscle

scholarly journals Acute effect of dietary nitrate on forearm muscle oxygenation, blood volume and strength in older adults: A randomized clinical trial

PLoS ONE ◽  
2017 ◽  
Vol 12 (11) ◽  
pp. e0188893 ◽  
Author(s):  
Gustavo Vieira de Oliveira ◽  
Marina Morgado ◽  
Carlos Adam Conte-Junior ◽  
Thiago Silveira Alvares
Keyword(s):  
Older Adults ◽  
Clinical Trial ◽  
Randomized Clinical Trial ◽  
Blood Volume ◽  
Acute Effect ◽  
Muscle Oxygenation ◽  
Dietary Nitrate ◽  
Forearm Muscle

The Clinical, Roentgenological and Morphological Effects of an Acute Exposure of Phosgene on the Lungs of Dogs

1971 ◽  
Vol 29 ◽  
pp. 236-237
Author(s):  
R. F. Bils ◽  
W. F. Diller ◽  
F. Huth
Keyword(s):  
Latent Period ◽  
Chemical Industry ◽  
Toxic Substance ◽  
Lung Edema ◽  
X Rays ◽  
Beagle Dogs ◽  
Male And Female ◽  
Morphological Alterations ◽  
Before And After ◽  
Electron Microscopes

Phosgene still plays an important role as a toxic substance in the chemical industry. Thiess (1968) recently reported observations on numerous cases of phosgene poisoning. A serious difficulty in the clinical handling of phosgene poisoning cases is a relatively long latent period, up to 12 hours, with no obvious signs of severity. At about 12 hours heavy lung edema appears suddenly, however changes can be seen in routine X-rays taken after only a few hours' exposure (Diller et al., 1969). This study was undertaken to correlate these early changes seen by the roengenologist with morphological alterations in the lungs seen in the'light and electron microscopes.Forty-two adult male and female Beagle dogs were selected for these exposure experiments. Treated animals were exposed to 94.5-107-5 ppm phosgene for 10 min. in a 15 m3 chamber. Roentgenograms were made of the thorax of each animal before and after exposure, up to 24 hrs.

Ultrastructural investigation of spontaneous pituitary gonadotroph cell adenomas in aging Sprague-Dawley rats

1983 ◽  
Vol 41 ◽  
pp. 702-703
Author(s):  
D. J. McComb ◽  
J. Beri ◽  
F. Zak ◽  
K. Kovacs
Keyword(s):  
Electron Microscopy ◽  
Animal Model ◽  
Epoxy Resin ◽  
Immunoelectron Microscopy ◽  
Tumor Type ◽  
Gonadal Function ◽  
Sprague Dawley ◽  
Male And Female ◽  
Reticulin Fibers ◽  
Sprague Dawley Rats

Gonadotroph cell adenomas of the pituitary are infrequent in human patients and are not invariably associated with altered gonadal function. To date, no animal model of this tumor type exists. Herein, we describe spontaneous gonadotroph cell adenomas in old male and female Sprague-Dawley rats by histology, immunocytology and electron microscopy.The material consisted of the pituitaries of 27 male and 38 female Sprague Dawley rats, all 26 months of age or older, removed at routine autopsy. Sections of formal in-fixed, paraffin-embedded tissue were stained with hematoxylin-phloxine-saffron (HPS), the PAS method and the Gordon-Sweet technique for the demonstration of reticulin fibers. For immunostaining, sections were exposed to anti-rat β-LH, anti-ratβ-TSH, anti-rat PRL, anti-rat GH and anti-rat ACTH 1-39. For electron microscopy, tissue was fixed in 2.5% glutaraldehyde, postfixed in 1% OsO4 and embedded in epoxy-resin. Tissue fixed in 10% formalin, embedded in epoxy resin without osmification, was used for immunoelectron microscopy.

Sign in / Sign up

Export Citation Format

Share Document