Age and Activity Status Affect Muscle Reoxygenation Time after Maximal Cycling Exercise

Ichimura, Shiro; Murase, Norio; Osada, Takuya; Kime, Ryotaro; Homma, Toshiyuki; Ueda, Chihoko; Nagasawa, Takeshi; Motobe, Mayuko; Hamaoka, Toshiyuki; Katsumura, Toshihito

doi:10.1249/01.mss.0000227312.08599.f1

Cited by 34 publications

(38 citation statements)

References 21 publications

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“…Moreover, we did not found any direct relationship between Reoxy rate and repeated-sprint ability, neither before nor after training. Nevertheless, in agreement with the literature (Ichimura et al 2006), maximal aerobic function (as evidenced by MAS values) was a good predictor of Reoxy rate (correlations rated as moderate; r = 0.42-0.46 for S1). Similarly, improvements in MAS after training largely predicted these of Reoxy rate (r = 0.63).…”

Section: Effect Of Endurance Training On Repeated-sprint Performancesupporting

confidence: 91%

“…As previously observed during submaximal cycling exercise (Costes et al 2001), we also observed after training that both sprints were associated with substantially lower deoxygenation levels (Table 1). While both the higher absolute end-S1 TSI values and the quickening of Reoxy rate after S1 during RS adj might be related to the lower relative exercise load (96 vs. 100%) and associated reduced anaerobic system participation (Chance et al 1992;Costes et al 2001), the greater end-S2 TSI levels and the improvements of Reoxy rate after the all-out S2 suggest an improved muscle aerobic function after training (Costes et al 2001;Ichimura et al 2006). Indeed, since TSI reflects the dynamic balance between O 2 supply and O 2 consumption, the greater end-S2 TSI value observed after training is likely indicative of an improved O 2 delivery at the muscle level (assuming that O 2 demand was still maximal during the sprint).…”

Section: Effect Of Endurance Training On Repeated-sprint Performancementioning

confidence: 99%

“…Assessment of muscle reoxygenation rate (i.e., the time course of post-exercise muscle oxygenation level, Reoxy rate) after dynamic exercise is now accepted as a good non-invasive marker of muscle aerobic function (Puente-Maestu et al 2003;Ichimura et al 2006). For instance, Reoxy rate has been reported to be largely related to fitness level (Ichimura et al 2006) and was accelerated after training in relation to changes in muscle oxidative enzymes (Puente-Maestu et al 2003) or blood flow and/or capillarization (Kime et al 2003b). Additionally, Reoxy rate has been shown to present similar recovery kinetics than PCr after submaximal exercise (McCully et al 1994).…”

Section: Introductionmentioning

confidence: 99%

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Effect of endurance training on performance and muscle reoxygenation rate during repeated-sprint running

Buchheit

Ufland

2010

Eur J Appl Physiol

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The aim of the present study was to examine the effect of an 8-week endurance training program on repeated-sprint (RS) performance and post-sprints muscle reoxygenation rate in 18 moderately trained males (34 ± 5 years). Maximal aerobic speed (MAS), 10 km running and RS (2 × 15-s shuttle-sprints, interspersed with 15 s of passive recovery) performance were assessed before and after the training intervention. Total distance covered (TD) and the percentage of distance decrement (%Dec) were calculated for RS. Between-sprints muscle reoxygenation rate (Reoxy rate) was assessed with near-infrared spectroscopy during RS before and after training. After training, MAS (+9.8 ± 5.8%, with 100% chances to observe a substantial improvement), 10 km time (-6.2 ± 5.3%, 99%), TD (+9.6 ± 7.7%, 98%), %Dec (-25.6 ± 73.6%, 93%) and Reoxy rate (+152.4 ± 308.1%, 95%) were improved. The improvement of Reoxy rate was largely correlated with improvements in MAS [r = 0.63 (90% CL, 0.31;-0.82)] and %Dec [r = -0.52 (-0.15;-0.76)]. Present findings confirm the beneficial effect of endurance training on post-sprint muscle reoxygenation rate, which is likely to participate in the improvement of repeated-sprint ability after training. These data also confirm the importance of aerobic conditioning in sports, where repeating high-intensity/maximal efforts within a short time-period are required.

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Section: Effect Of Endurance Training On Repeated-sprint Performancesupporting

confidence: 91%

Section: Effect Of Endurance Training On Repeated-sprint Performancementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Effect of endurance training on performance and muscle reoxygenation rate during repeated-sprint running

Buchheit

Ufland

2010

Eur J Appl Physiol

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“…Puente‐Maestu et al. , 2003; Ichimura et al. , 2006; Buchheit & Ufland, 2010), we choose the gastrocnemius in the present study for the ease of implementing the arterial (popliteal) occlusion immediately after the runs.…”

Section: Methodsmentioning

confidence: 99%

Reproducibility and sensitivity of muscle reoxygenation and oxygen uptake recovery kinetics following running exercise in the field

Buchheit

Ufland²,

Haydar³

et al. 2011

Clin Physio Funct Imaging

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The purpose of this study was to assess the reliability of postexercise near-infrared spectroscopy (NIRS)-derived measurements and their sensitivity to different exercise intensities in the field. Seventeen athletes (24·1 ± 5·6 year) repeated, on three occasions, two 2-min submaximal shuttle-runs at 40% and 60% of V(IFT) (final speed of the 30-15 intermittent fitness test) and a 50-m shuttle-run sprint (Sprint), with (OCC) or without (CON) repeated transient arterial occlusions of the medial gastrocnemius during the postexercise period. NIRS variables (i.e. oxyhaemoglobin [HbO(2)], deoxyhaemoglobin [HHb] and their difference [Hb(diff)]) were measured continuously for 3 min after each exercise. Half-recovery (½Rec) and mean response (MRT; monoexponential curve fitting) times of muscle reoxygenation and muscle oxygen uptake (mVO(2)) recovery were calculated. Reliability was assessed using the typical error of measurement, expressed as a coefficient of variation (CV). Postexercise recovery of muscle reoxygenation revealed CVs ranging from 16·8% to 37·3%; CV for mVO(2) recovery ranged from 6·2% to 20·9%, with no substantial differences shown between NIRS variables and exercise intensities. While running, intensity did not affect MRT or ½Rec for muscle reoxygenation, and differences were found for mVO(2) recovery (e.g. [Hb(diff)]-mVO(2) MRT = 28·7 ± 5·2, 34·2 ± 5·1 and 37·3 ± 6·2 s for 40%, 60% and Sprint, respectively, P<0·01). To conclude, the kinetics of postexercise NIRS measurements showed CV values ranging from 6% to 37%, with no substantial differences between exercise intensities or NIRS-derived variables. However, exercise intensity did influence mVO(2) recovery kinetics, but not that of muscle reoxygenation in an occlusion-free condition.

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“…Near infrared spectroscopy (NIRS) has recently been used noninvasively to evaluate oxygenation in skeletal muscle during exercise (McCully & Hamaoka, 2000) and muscle aerobic function (Nagasawa et al, 2003;Ichimura et al, 2006). Muscle oxygenation measured by NIRS reflects the balance between oxygen supply to muscle and muscle oxygen consumption (McCully & Hamaoka, 2000).…”

Section: Introductionmentioning

confidence: 99%

Effects of Walking for Health Promotion on Oxygen Consumption in Nonexercising Muscle

Nagasawa

Ichimura²,

Moriguchi

2009

Int. J. Sport Health Sci.

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Age and Activity Status Affect Muscle Reoxygenation Time after Maximal Cycling Exercise

Cited by 34 publications

References 21 publications

Effect of endurance training on performance and muscle reoxygenation rate during repeated-sprint running

Effect of endurance training on performance and muscle reoxygenation rate during repeated-sprint running

Reproducibility and sensitivity of muscle reoxygenation and oxygen uptake recovery kinetics following running exercise in the field

Effects of Walking for Health Promotion on Oxygen Consumption in Nonexercising Muscle

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