scholarly journals Muscle Fatigue Properties of the Accessory Respiratory Muscles during Expiratory Load

2016 ◽  
Vol 31 (1) ◽  
pp. 143-150 ◽  
Author(s):  
Toshiya TSUKAMOTO ◽  
Masaki UCHIDA ◽  
Nodoka MIURA ◽  
Hitoshi MARUYAMA
Keyword(s):  
Muscle Fatigue ◽  
Respiratory Muscles ◽  
Fatigue Properties ◽  
Accessory Respiratory Muscles

Forward trunk lean with arm support affects the activity of accessory respiratory muscles and thoracoabdominal movement in healthy individuals

2018 ◽  
Vol 61 ◽  
pp. 167-176 ◽  
Author(s):  
António Mesquita Montes ◽  
Carolina Tam ◽  
Carlos Crasto ◽  
Cristina Argel de Melo ◽  
Paulo Carvalho ◽  
...  
Keyword(s):  
Respiratory Muscles ◽  
Healthy Individuals ◽  
Arm Support ◽  
Accessory Respiratory Muscles

Action potentials of accessory respiratory muscles in dogs

1960 ◽  
Vol 199 (3) ◽  
pp. 569-572 ◽  
Author(s):  
T. Ogawa ◽  
N. C. Jefferson ◽  
J. E. Toman ◽  
T. Chiles ◽  
A. Zambetoglou ◽  
...  
Keyword(s):  
Action Potentials ◽  
Respiratory Muscles ◽  
Transversus Abdominis ◽  
Intercostal Muscles ◽  
Intrinsic Muscle ◽  
Internal Oblique ◽  
Accessory Respiratory Muscles

Among 30 so-called accessory respiratory and other muscles tested, the presence of rhythmic respiratory impulses was found in 12. Both expiratory and inspiratory impulses were detected in certain muscles, in others only in- or expiratory ones. The muscles with most frequent inspiratory impulses were the intercartilaginous intercostal muscles, the intrinsic muscle of the larynx and the nostril; those with expiratory impulses were abdominis, external and internal oblique, transversus abdominis, scalenus anterior, and lower interosseous intercostal muscles.

Muscle-derived ROS and thiol regulation in muscle fatigue

2008 ◽  
Vol 104 (3) ◽  
pp. 853-860 ◽  
Author(s):  
Leonardo F. Ferreira ◽  
Michael B. Reid
Keyword(s):  
Muscle Fatigue ◽  
Reactive Nitrogen Species ◽  
Force Production ◽  
Respiratory Muscles ◽  
Oxygen Species ◽  
Nitrogen Species ◽  
Loss Of Function ◽  
New Directions ◽  
Thiol Antioxidant ◽  
Low Levels

Muscles produce oxidants, including reactive oxygen species (ROS) and reactive nitrogen species (RNS), from a variety of intracellular sources. Oxidants are detectable in muscle at low levels during rest and at higher levels during contractions. RNS depress force production but do not appear to cause fatigue of healthy muscle. In contrast, muscle-derived ROS contribute to fatigue because loss of function can be delayed by ROS-specific antioxidants. Thiol regulation appears to be important in this biology. Fatigue causes oxidation of glutathione, a thiol antioxidant in muscle fibers, and is reversed by thiol-specific reducing agents. N-acetylcysteine (NAC), a drug that supports glutathione synthesis, has been shown to lessen oxidation of cellular constituents and delay muscle fatigue. In humans, NAC pretreatment improves performance of limb and respiratory muscles during fatigue protocols and extends time to task failure during volitional exercise. These findings highlight the importance of ROS and thiol chemistry in fatigue, show the feasibility of thiol-based countermeasures, and identify new directions for mechanistic and translational research.

Analysis of work patterns of the accessory respiratory muscles

1972 ◽  
Vol 73 (2) ◽  
pp. 106-108
Author(s):  
L. S. Romanova ◽  
L. E. Sapuntsov ◽  
L. L. Shik
Keyword(s):  
Respiratory Muscles ◽  
Work Patterns ◽  
Accessory Respiratory Muscles

Does breathing type influence electromyographic activity of obligatory and accessory respiratory muscles?

2014 ◽  
Vol 41 (11) ◽  
pp. 801-808 ◽  
Author(s):  
M. F. Gutiérrez ◽  
S. Valenzuela ◽  
R. Miralles ◽  
C. Portus ◽  
H. Santander ◽  
...  
Keyword(s):  
Respiratory Muscles ◽  
Electromyographic Activity ◽  
Accessory Respiratory Muscles

scholarly journals Epidemiological analysis of intramuscular hemorrhage of respiratory and accessory respiratory muscles in fatal drowning cases

PLoS ONE ◽  
2021 ◽  
Vol 16 (12) ◽  
pp. e0261348
Author(s):  
Daiko Onitsuka ◽  
Takuma Nakamae ◽  
Midori Katsuyama ◽  
Machiko Miyamoto ◽  
Eri Higo ◽  
...  
Keyword(s):  
Respiratory Muscles ◽  
The Elderly ◽  
Bleeding Tendency ◽  
Postmortem Diagnosis ◽  
Cold Environments ◽  
Morphological Findings ◽  
Comprehensive Judgment ◽  
Intramuscular Hemorrhage ◽  
Epidemiological Characteristics ◽  
Accessory Respiratory Muscles

The postmortem diagnosis of drowning death and understanding the mechanisms leading to drowning require a comprehensive judgment based on numerous morphological findings in order to determine the pathogenesis and epidemiological characteristics of the findings. Effortful breathing during the drowning process can result in intramuscular hemorrhage in respiratory and accessory respiratory muscles. However, the characteristics of this phenomenon have not been investigated. We analyzed the epidemiological characteristics of 145 cases diagnosed as drowning, in which hemorrhage, not due to trauma, was found in the respiratory muscles and accessory respiratory muscles. Hemorrhage was observed in 31.7% of these cases, and the incidence did not differ by gender or drowning location. The frequency of hemorrhage was significantly higher in months with a mean temperature below 20°C than in months above 20°C, suggesting a relationship between the occurrence of hemorrhage and low environmental temperature. Moreover, the frequency of hemorrhage was significantly higher in the elderly (aged ≥65 years) compared to those <65 years old. In the elderly, the weakening of muscles due to aging may contribute to the susceptibility for intramuscular hemorrhage. Moreover, these intramuscular hemorrhages do not need to be considered in cases of a potential bleeding tendency due to disease such as cirrhosis or medication such as anticoagulants. Our results indicate that intramuscular hemorrhage in respiratory and accessory respiratory muscles can serve as an additional criterion to differentiate between fatal drowning and other causes of death, as long as no cutaneous or subcutaneous hematomas above the muscles with hemorrhages are observed. In addition, the epidemiological features that such intramuscular hemorrhage is more common in cold environments and in the elderly may provide useful information for the differentiation.

scholarly journals 2E2-5 Perceived Fatigue Properties due to Muscle Fatigue of Elbow Flexion with Time

2015 ◽  
Vol 51 (Supplement) ◽  
pp. S282-S283
Author(s):  
Ayana NOZAWA ◽  
Takanori CHIHARA ◽  
Akihiko SEO
Keyword(s):  
Muscle Fatigue ◽  
Elbow Flexion ◽  
Fatigue Properties
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