Influence of exercise intensity on systemic oxidative stress and antioxidant capacity Tập 34 Số 5 - Trang 377-383 - 2014
Lewan Parker, Teneale McGuckin, Anthony S. Leicht
SummaryThe aim of the current study was to examine the influence of exercise
intensity on systemic oxidative stress (OS) and endogenous antioxidant capacity.
Non‐smoking, sedentary healthy adult males (n = 14) participated in two exercise
sessions using an electronically braked cycle ergometer. The first session
consisted of a graded exercise test to determine maximal power output and oxygen
consu... hiện toàn bộ
Central fatigue of the first dorsal interosseous muscle during low‐force and high‐force sustained submaximal contractions Tập 27 Số 5 - Trang 298-304 - 2007
Tamara Eichelberger, Martin Bilodeau
SummaryThe aim of this study was to compare the extent of central fatigue in the
first dorsal interosseous (FDI) muscle of healthy adults in low, moderate and
high‐force submaximal contractions. Nine healthy adults completed four
experimental sessions where index finger abduction force was recorded during
voluntary contractions and in response to brief trains (five pulses at 100 Hz)
of electrical ... hiện toàn bộ
Effects of cellular phone use on ear canal temperature measured by NTC thermistors Tập 27 Số 3 - Trang 162-172 - 2007
Kari U. O. Tahvanainen, Juanita Niño, Pirjo Halonen, Tom Kuusela, Tommi Alanko, Tomi Laitinen, Esko Länsimies, Maila Hietanen, Harri Lindholm
SummaryThe earlier studies using phantom models and human subjects concerning
warming effects during cellular phone use have been controversial, partly
because radiofrequency (RF) exposures have been variable. In this randomized,
double‐blind, placebo‐controlled crossover trial, 30 healthy subjects were
submitted to 900 MHz (2W) and 1800 MHz (1W) cellular phone RF exposure, and to
sham exposure in... hiện toàn bộ
Texture analysis of ultrasound images is a sensitive method to follow‐up muscle damage induced by eccentric exercise Tập 38 Số 3 - Trang 477-482 - 2018
Thiago T Matta, Wagner Coelho de Albuquerque Pereira, Régis Radaelli, Ronei Silveira Pinto, Líliam Fernandes de Oliveira
SummaryThe grey level of co‐occurrence matrix (GLCM) is a texture analysis
approach accounting for spatial distribution of the pixels from an image and can
be a promising method for exercise‐induced muscle damage (EIMD) studies. We
followed up the time changes of two GLCM texture parameters and echo intensity
(EI) on ultrasound images after eccentric contractions. Thirteen untrained women
performe... hiện toàn bộ
Determination of left ventricular long‐axis orientation using MRI: changes during the respiratory and cardiac cycles in normal and diseased subjects Tập 25 Số 5 - Trang 286-292 - 2005
John E. Foster, Henrik Engblom, Thomas N. Martin, Galen S. Wagner, Tracey Steedman, Stefania Ferrua, Alex Elliott, Henry J. Dargie, Bjoern A. Groenning
SummaryBackground: It has previously been shown that magnetic resonance imaging
(MRI) can be used to accurately determine left ventricular (LV) long‐axis
orientation in healthy individuals. However, the inter‐ and intra‐observer
variability in patients with acute coronary syndrome (ACS) and chronic heart
failure (CHF) has not been explored. Furthermore, the changes in LV long‐axis
orientation bec... hiện toàn bộ
A comparison of postexercise shear rate patterns following different intensities and durations of running in healthy men Tập 32 Số 3 - Trang 234-240 - 2012
Blair D. Johnson, Janet P. Wallace
SummaryPurpose: We tested the hypothesis that high‐intensity exercise would
elicit the greatest alterations in postexercise shear rate (SR) patterns when
compared to moderate intensity exercise, and moderate duration exercise would
produce similar postexercise SR patterns as long‐duration exercise.Methods: On
separate days, ten healthy men completed three acute treadmill exercise sessions
at dif... hiện toàn bộ
Impact of exercise on retinal microvascular regulation measured by dynamic vessel analysis in healthy individuals Tập 32 Số 2 - Trang 158-161 - 2012
Torben Rueddel, Matthias Kneser, Frank Tost
SummaryWe assessed the acute impact of physical exercise on the retinal vessel
diameter and the regulation of vasoconstriction and vasodilatation owing to
flicker that has never been examined before. Forty young (mean age 24 years)
healthy subjects (26 women and 14 men) had retinal examinations with dynamic
vessel analysis prior and after (0·5, 1·5 and 2·5 h) intense exercise of 20 min.
The measur... hiện toàn bộ
Predicted maximal heart rate for upper body exercise testing Tập 36 Số 2 - Trang 155-158 - 2016
Mathew W. Hill, Laura A. Talbot, Mike Price
SummaryAge‐predicted maximal heart rate (HRMAX) equations are commonly used for
the purpose of prescribing exercise regimens, as criteria for achieving maximal
exertion and for diagnostic exercise testing. Despite the growing popularity of
upper body exercise in both healthy and clinical settings, no recommendations
are available for exercise modes using the smaller upper body muscle mass. The
pur... hiện toàn bộ