45 Result(s)
within
Toshihito Katsumura
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Chapter and Conference Paper
Relationship Between Muscle Deoxygenation and Cardiac Output in Subjects Without Attenuation of Deoxygenation Hemoglobin Concentration Near the End of Ramp Cycling Exercise: A Longitudinal Study
The aim of this study was to investigate the longitudinal relationship between the slopes of systemic and quadriceps muscle O2 dynamics in subjects without attenuation point in deoxygenated hemoglobin concentrati...
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Chapter and Conference Paper
Systemic and Quadriceps Muscle O2 Dynamics in Subjects Without Attenuation Point of Deoxygenated Haemoglobin Concentration During Ramp Cycling Exercise
The aim of this study was to compare systemic and quadriceps muscle O2 dynamics between aerobic capacity-matched subjects without (NAP; n = 5) and with (CON; n = 13) attenuation point in deoxygenated haemoglobin ...
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Chapter
Skeletal Muscle Deoxygenation and Its Relationship to Aerobic Capacity During Early and Late Stages of Aging
The aim of this study was to compare muscle O2 dynamics during exercise among elderly (n = 10, age: 73 ± 3 years), middle-aged (n = 9, age: 50 ± 6 years), and young (n = 10, age: 25 ± 3 years) adults. The subject...
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Chapter
Differences in Muscle O2 Dynamics During Treadmill Exercise Between Aerobic Capacity-Matched Overweight and Normal-Weight Adults
The aim of this study was to compare muscle O2 dynamics during exercise between aerobic capacity-matched overweight and normal-weight adults. Overweight women (OW, n = 9) and normal-weight women (NW, n = 14) perf...
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Chapter
Effects of Aerobic Cycling Training on O2 Dynamics in Several Leg Muscles in Early Post-myocardial Infarction
The aim of this study was to test the effects of aerobic cycling training on O2 dynamics in several leg muscles in early post-myocardial infarction (post-MI). Fifteen post-MI patients were divided into a 12-week ...
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Chapter
Multi-site Measurements of Muscle O2 Dynamics During Cycling Exercise in Early Post-myocardial Infarction
The aim of this study was to compare the muscle oxygen dynamics between early post-myocardial infarction (n = 12; MI) and age-matched elderly subjects without MI (n = 12; CON) in several leg muscles during ram...
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Article
Open AccessAerobic training enhances muscle deoxygenation in early post-myocardial infarction
Exercise-induced skeletal muscle deoxygenation is startling by its absence in early post-myocardial infarction (MI) patients. Exercise training early post-MI is associated with reduced cardiovascular risk and ...
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Chapter and Conference Paper
Sex-Related Difference in Muscle Deoxygenation Responses Between Aerobic Capacity-Matched Elderly Men and Women
Muscle O2 dynamics during ramp cycling exercise were compared between aerobic capacity-matched elderly men (n = 8, age 65 ± 2 years) and women (n = 8, age 66 ± 3 years). Muscle O2 saturation (SmO2) and relative c...
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Chapter and Conference Paper
Erratum to: The Effects of Passive Cycling Exercise for 20 min on Cardiorespiratory Dynamics in Healthy Men
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Chapter and Conference Paper
The Effects of Passive Cycling Exercise for 30 min on Cardiorespiratory Dynamics in Healthy Men
An increase in the incidence rate of cardiovascular disease is attributed to high daily sitting time, while a drop in risk of cardiovascular disease comes from a decrease in daily sitting time, rather than an ...
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Chapter and Conference Paper
Muscle Deoxygenation and Its Heterogeneity Changes After Endurance Training
The purpose of this study was to elucidate the time course of muscle deoxygenation and its heterogeneity changes through endurance training. Nine healthy untrained male participated in this study. The subjects...
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Chapter and Conference Paper
Muscle Oxygen Dynamics During Cycling Exercise in Angina Pectoris Patients
Muscle O2 dynamics during ramp cycling exercise were compared between angina pectoris patients (AP; n = 7, age: 73 ± 6 years) after coronary artery bypass grafting and age-, height-, and body weight-matched elder...
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Chapter and Conference Paper
Effects of Acupuncture Stimulation on Muscle Tissue Oxygenation at Different Points
Muscle tissue oxygenation is a critical issue in muscle complications such as pain, exhaustion, stiffness, or fatigue during and after exercise. The aim of this study was to investigate whether the changes of ...
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Chapter and Conference Paper
Regional Differences in Muscle Energy Metabolism in Human Muscle by 31P-Chemical Shift Imaging
Previous studies have reported significant region-dependent differences in the fiber-type composition of human skeletal muscle. It is therefore hypothesized that there is a difference between the deep and supe...
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Chapter and Conference Paper
Effects of Low Volume Aerobic Training on Muscle Desaturation During Exercise in Elderly Subjects
Aging enhances muscle desaturation responses due to reduced O2 supply. Even though aerobic training enhances muscle desaturation responses in young subjects, it is unclear whether the same is true in elderly subj...
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Chapter and Conference Paper
Low Volume Aerobic Training Heightens Muscle Deoxygenation in Early Post-Angina Pectoris Patients
The aim of this study was to investigate the effect of low volume aerobic exercise training on muscle O2 dynamics during exercise in early post-angina pectoris (AP) patients, as a pilot study. Seven AP patients (...
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Chapter and Conference Paper
Regional Differences of Metabolic Response During Dynamic Incremental Exercise by 31P-CSI
The aim of this study was to detect the differences in muscle metabolic response of the quadriceps during incremental dynamic knee exercise using regional 31Phosphorus Chemical Shift Imaging (31P-CSI). Sixteen he...
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Article
Gender difference in distance of tibiofibular syndesmosis to joint dynamics of lower extremities during squat
The incidence of lower extremity injury is greater in women than men, indicating gender difference in lower extremity function. Here we investigate the role of the ankle during squatting in young men and women...
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Article
Once-weekly muscle endurance and strength training prevents deterioration of muscle oxidative function and attenuates the degree of strength decline during 3-week forearm immobilization
Muscle unloading causes muscle function deterioration, but the extent to which training frequency or volume can be reduced while preserving muscle function during muscle unloading is unknown. We examined the e...
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Chapter and Conference Paper
Skeletal Muscle Deoxygenation Responses During Treadmill Exercise in Children
Muscle O2 saturation (SmO2) and blood volume response in activating muscles during treadmill exercise were compared between prepubertal boys (n = 9, age: 9 ± 1 years) and young men (n = 9, age: 22 ± 2 years). SmO
