NIRS applications in sport science Skeletal muscle oxygenation during isometric and dynamic...
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NIRS applications in sport science Skeletal muscle oxygenation during isometric and dynamic exercises Paiziev A.A. Institute of Ion-Plasma and Laser Technologies
NIRS applications in sport science Skeletal muscle oxygenation
during isometric and dynamic exercises Paiziev A.A. Institute of
Ion-Plasma and Laser Technologies Uzbek Academy of Science Slide 2
Introduction To maximize training for wrestling competition,
coaches and wrestlers are interested in improving the physiologic
capacities that are most important for successful performance. One
of most important performance parameters are oxygen consumption
(mVO 2 ) and maximal aerobic power (VO 2 max) upper and lower body
muscles of wrestlers. To measure VO 2 max need to use an
incremental treadmill running protocol and gas exchange of CO 2 and
O 2 on systemic level. But accepted methods to measure systemic
aerobic power can not to reveal separate skeletal muscles
performances of upper and lower body on local level. In the present
work we are offering tissue oximetry (OxyPrem) to measure
hemodynamic parameters of skeletal muscles (O 2 Hb, HHb, tHb, StO
2, VO 2, reoxygenation rate) in rest and exercise. Slide 3 What is
the NIRS and for what it used NIRS- Near Infrared Spectroscopy
(NIRS) is one of biophotonic techniques which can be used to
monitor oxygenation and haemodynamics in a variety of human
tissues, including skeletal muscle. New elaborated NIRS device is -
OxyPrem, which specifically designed for non-invasive measurement
of localized tissue oxy- and deoxyhaemoglobin concentration
([O2Hb], [HHb]) and tissue oxygenation (StO2) by means of
near-infrared spectroscopy. Slide 4 State of the art of SM
investigation by NIRS technology In last 8 years published about
400 papers devoted NIRS applications in sport science. So far, only
about 20 of human body skeletal muscles investigated by NIRS
(general number of skeletal muscles-600). Mainly most of papers
devoted hemodynamic changing and oxygenation of separate SM in
upper and lowest extremities in local area of skin in rest and
under exercise. Limited number of papers devoted to measurements of
hemodynamic response of brain to moving stimuli. There are two kind
of exercise stimuli: dynamic stimuli (muscle contraction) and
isometric stimuli (static loading). There is not researches,
devoted brain response on to muscle dynamic and isometric stimuli.
Slide 5 d AbsorptionScattering
