Vital Signs

Peterson, Brian K.

doi:10.1016/b978-072160361-2.50025-9

Cited by 9 publications

(4 citation statements)

References 111 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The normality values considered were systolic blood pressure (SBP) and diastolic blood pressure (DBP) of 120/80 mmHg, 20,21 heart rate lower than 100bpm, and oxygen saturation above 95%. 21…”

Section: Discussionmentioning

confidence: 99%

Immediate Effect of an Orthostatic Device in Amputees Who Practice Physical Activity

Alves¹,

Hotta

Aguiar³

et al. 2023

Rev Bras Med Esporte

View full text Add to dashboard Cite

Introduction: Lower limb amputation affects mainly economically active young adults, causing great socio-economic impact due to impaired work capacity, socialization, and quality of life. Thus, the use of orthostatic devices could make reintegration of the individual back into the work environment possible. Objective: To evaluate the immediate effect of using a postural elevation device on physiological parameters and plantar pressure levels in amputees who practice physical activity. Methods: Sociodemographic and perceived sleep quality data were collected from 14 adults of both sexes with lower limb amputations, who practice physical activity. The participants were placed in postural elevation equipment for a period of 90 minutes with monitoring of physiological parameters such as blood pressure, heart rate, and oxygen saturation. Parameters related to the autonomic nervous system and plantar pressure levels were also evaluated. Data were also collected during recovery at 15- and 30-minute intervals after using the device. Data analysis was performed using two-way ANOVA or a mixed-effects model with Sidak's multiple comparisons test. Results: For all cardiovascular parameters (p>0.05) analyzed, the activation level of the autonomic nervous system (p>0.05), and plantar pressure (p>0.05), no evidence of differences was observed during use of the orthostatic device in all evaluated periods. Conclusion: The use of postural elevation equipment for 90 minutes does not generate, as an immediate effect, changes in physiological parameters and postural control in amputees who practice physical activity. Level of evidence II; Therapeutic studies – investigation of treatment results. Clinical relevance statement .

show abstract

Section: Discussionmentioning

confidence: 99%

Immediate Effect of an Orthostatic Device in Amputees Who Practice Physical Activity

Alves¹,

Hotta

Aguiar³

et al. 2023

Rev Bras Med Esporte

View full text Add to dashboard Cite

show abstract

“…The following assumptions were made for these parameters based on prior literature. HGB values of 14 and 16 g/dL were assumed for females and males, respectively, 34 an SpO2 of 98% was assumed, 35 a venous ratio of 0.75 was assumed, 36 and the mw of Hb of 64,500 g/mol was assumed 34…”

Section: Methodsmentioning

confidence: 99%

Combined frequency domain near-infrared spectroscopy and diffuse correlation spectroscopy system for comprehensive metabolic monitoring of inspiratory muscles during loading

Gómez,

Brochard,

Goligher

et al. 2024

J. Biomed. Opt.

View full text Add to dashboard Cite

Significance: Mechanical ventilation (MV) is a cornerstone technology in the intensive care unit as it assists with the delivery of oxygen in critically ill patients. The process of weaning patients from MV can be long and arduous and can lead to serious complications for many patients. Despite the known importance of inspiratory muscle function in the success of weaning, current clinical standards do not include direct monitoring of these muscles.Aim: The goal of this project was to develop and validate a combined frequency domain near-infrared spectroscopy (FD-NIRS) and diffuse correlation spectroscopy (DCS) system for the noninvasive characterization of inspiratory muscle response to a load. Approach:The system was fabricated by combining a custom digital FD-NIRS and DCS system. It was validated via liquid phantom titrations and a healthy volunteer study. The sternocleidomastoid (SCM), an accessory muscle of inspiration, was monitored during a short loading period in fourteen young, healthy volunteers. Volunteers performed two different respiratory exercises, a moderate load and a high load, which consisted of a one-minute baseline, a one-minute load, and a six-minute recovery period. Results:The system has low crosstalk between absorption, reduced scattering, and flow when tested in a set of liquid titrations. Faster dynamics were observed for changes in blood flow index (BF i ), and metabolic rate of oxygen (MRO 2 ) compared with hemoglobin + myoglobin (Hb+Mb) based parameters after the onset of loads in males. Additionally, larger percent changes in BF i , and MRO 2 were observed compared with Hb+Mb parameters in both males and females. There were also sex differences in baseline values of oxygenated Hb+Mb, total Hb+Mb, and tissue saturation. Conclusions:The dynamic characteristics of Hb+Mb concentration and blood flow were distinct during loading of the SCM, suggesting that the combination of

show abstract

“…The following assumptions were made for these parameters based on prior literature. HGB values of 14 g/dL and 16 g/dL were assumed for females and males respectively [31], an SpO 2 of 98% was assumed [32], a venous ratio of 0.75 was assumed [33], and the mw of Hb of 64,500 g/mol was assumed [31].…”

Section: Custom Combined Diffuse Optical Spectroscopy and Diffuse Cor...mentioning

confidence: 99%

A combined frequency domain near infrared spectroscopy and diffuse correlation spectroscopy system for comprehensive metabolic monitoring of inspiratory muscles during loading

Gómez,

Brochard,

Goligher

et al. 2023

Preprint

View full text Add to dashboard Cite

SignificanceMechanical ventilation (MV) is a cornerstone technology in the intensive care unit as it assists with the delivery of oxygen in critical ill patients. The process of weaning patients from MV can be long, and arduous and can lead to serious complications for many patients. Despite the known importance of inspiratory muscle function in the success of weaning, current clinical standards do not include direct monitoring of these muscles.AimThe goal of this project was to develop and validate a combined frequency domain near infrared spectroscopy (FD-NIRS) and diffuse correlation spectroscopy (DCS) system for the noninvasive characterization of inspiratory muscle response to a load.ApproachThe system was fabricated by combining a custom digital FD-NIRS and DCS system. It was validated via liquid phantom titrations and a healthy volunteer study. The sternocleidomastoid (SCM), an accessory muscle of inspiration, was monitored during a short loading period in fourteen young healthy volunteer. Volunteers performed two different respiratory exercises, a moderate and high load, which consisted of a one-minute baseline, a one-minute load, and a six-minute recovery period.ResultsThe system has low crosstalk between absorption, reduced scattering, and flow when tested in a set of liquid titrations. Faster dynamics were observed for changes in blood flow index (BFi), and metabolic rate of oxygen (MRO2) compared to hemoglobin + myoglobin (Hb+Mb) based parameters after the onset of loads in males. Additionally, larger percent changes in BFi, and MRO2were observed compared to Hb+Mb parameters in both males and females. There were also sex differences in baseline values of oxygenated Hb+Mb, total Hb+Mb, and tissue saturation.ConclusionThe dynamic characteristics of Hb+Mb concentration and blood flow were distinct during loading of the SCM, suggesting that the combination of FD-NIRS and DCS may provide a more complete picture of inspiratory muscle dynamics.

show abstract

Vital Signs

Cited by 9 publications

References 111 publications

Immediate Effect of an Orthostatic Device in Amputees Who Practice Physical Activity

Immediate Effect of an Orthostatic Device in Amputees Who Practice Physical Activity

Combined frequency domain near-infrared spectroscopy and diffuse correlation spectroscopy system for comprehensive metabolic monitoring of inspiratory muscles during loading

A combined frequency domain near infrared spectroscopy and diffuse correlation spectroscopy system for comprehensive metabolic monitoring of inspiratory muscles during loading

Contact Info

Product

Resources

About