scholarly journals Bicycle Ergometer Exercise prolonged walking distance for Patients with Intermittent Claudication ^|^mdash; Evaluated by Near-infrared Spectroscopy

2005 ◽  
Vol 54 (1) ◽  
pp. 75-75 ◽  
Author(s):  
Norio Murase ◽  
Shiro Ichimura ◽  
Aya Kitahara ◽  
Takeshi Nagasawa ◽  
Chihoko Ueda ◽  
...  
2012 ◽  
Vol 46 (4) ◽  
pp. 315-324 ◽  
Author(s):  
Fabio Manfredini ◽  
Anna Maria Malagoni ◽  
Simona Mandini ◽  
Michele Felisatti ◽  
Francesco Mascoli ◽  
...  

2000 ◽  
Vol 98 (s42) ◽  
pp. 8P-8P
Author(s):  
V Farooq ◽  
A Egun ◽  
CN McOllum ◽  
MS Thorniley

1994 ◽  
Vol 8 (3) ◽  
pp. 294-296 ◽  
Author(s):  
Takashi Komiyama ◽  
Hiroshi Shigematsu ◽  
Hiroshi Yasuhara ◽  
Tetsuichiro Muto

2020 ◽  
Vol 128 (3) ◽  
pp. 534-544
Author(s):  
Lucrezia Zuccarelli ◽  
Paulo Cesar do Nascimento Salvador ◽  
Alessio Del Torto ◽  
Riccardo Fiorentino ◽  
Bruno Grassi

Near-infrared spectroscopy (NIRS) has been utilized as a noninvasive method to evaluate skeletal muscle mitochondrial function in humans, by calculating muscle V̇o2 (V̇o2 m) recovery (off-) kinetics following short light-intensity plantar flexion exercise. The aim of the present study was to determine V̇o2 m off- kinetics following standard cycle ergometer exercise of different intensities. Fifteen young physically active healthy men performed an incremental exercise (INCR) up to exhaustion and two repetitions of constant work-rate (CWR) exercises at 80% of gas exchange threshold (GET; MODERATE) and at 40% of the difference between GET and peak pulmonary V̇o2 (V̇o2 p; HEAVY). V̇o2 p and vastus lateralis muscle fractional O2 extraction by NIRS (Δ[deoxy(Hb+Mb)]) were recorded continuously. Transient arterial occlusions were carried out at rest and during the recovery for V̇o2 m calculation. All subjects tolerated the repeated occlusions protocol without problems. The quality of the monoexponential fitting for V̇o2 m off-kinetics analysis was excellent (0.93≤ r2≤0.99). According to interclass correlation coefficient, the test-retest reliability was moderate to good. V̇o2 m values at the onset of recovery were ~27, ~38, and ~35 times higher (in MODERATE, HEAVY, and INCR, respectively) than at rest. The time constants (τ) of V̇o2 m off-kinetics were lower ( P < 0.001) following MODERATE (29.1 ± 6.8 s) vs. HEAVY (40.8 ± 10.9) or INCR (42.9 ± 10.9), suggesting an exercise intensity dependency of V̇o2 m off-kinetics. Only following MODERATE the V̇o2 m off-kinetics were faster than the V̇o2 p off-kinetics. V̇o2 m off-kinetics, determined noninvasively by the NIRS repeated occlusions technique, can be utilized as a functional evaluation tool of skeletal muscle oxidative metabolism also following conventional cycle ergometer exercise. NEW & NOTEWORTHY This is the first study in which muscle V̇o2 recovery kinetics, determined noninvasively by near-infrared spectroscopy (NIRS) by utilizing the repeated occlusions method, was applied following standard cycle ergometer exercise of different intensities. The results demonstrate that muscle V̇o2 recovery kinetics, determined noninvasively by the NIRS repeated occlusions technique, can be utilized as a functional evaluation tool of skeletal muscle oxidative metabolism also following conventional cycle ergometer exercise, overcoming significant limitations associated with the traditionally proposed protocol.


2006 ◽  
Vol 55 (Supplement) ◽  
pp. S119-S124
Author(s):  
NORIO MURASE ◽  
SHIRO ICHIMURA ◽  
MIKA MORI ◽  
KIYOSHI SHIROISHI ◽  
KAORI MITSUOKA ◽  
...  

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