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https://www.readbyqxmd.com/read/28442632/effect-of-aerobic-exercise-training-on-ventilatory-efficiency-and-respiratory-drive-in-obese-subjects
#1
Mehdi Chlif, Anis Chaouachi, Said Ahmaidi
BACKGROUND: Obese patients show a decline in exercise capacity and diverse degrees of dyspnea in association with mechanical abnormalities, increased ventilatory requirements secondary to the increased metabolic load, and a greater work of breathing. Consequently, obese patients may be particularly predisposed to the development of respiratory muscle fatigue during exercise. The aim of this study was to assess inspiratory muscle performance during incremental exercise in 19 obese male subjects (body mass index 41 ± 6 kg/m(2)) after aerobic exercise training using the noninvasive, inspiratory muscle tension-time index (TT0...
April 25, 2017: Respiratory Care
https://www.readbyqxmd.com/read/28382660/the-effects-of-threshold-inspiratory-muscle-training-in-patients-with-chronic-obstructive-pulmonary-copd-disease-a-randomized-experimental-study
#2
Han-Yu Chuang, Hsiao Yun Chang, Yueh-Yen Fang, Su-Er Guo
AIMS: To investigate the effects of threshold inspiratory muscle training (IMT) in patients with stages II through IV chronic obstructive pulmonary disease (COPD) using maximum inspiratory pressure (PImax), baseline dyspnoea index (BDI), 6-minute walk test (6MWT), and quality of life (QoL). BACKGROUND: A threshold inspiratory muscle training device provides pressure for inspiratory muscle strength, but there is limited information on the effects of threshold inspiratory muscle training starting at low pressure training...
April 5, 2017: Journal of Clinical Nursing
https://www.readbyqxmd.com/read/28337149/influence-of-inspiratory-muscle-training-on-ventilatory-efficiency-and-cycling-performance-in-normoxia-and-hypoxia
#3
Eduardo Salazar-Martínez, Hannes Gatterer, Martin Burtscher, José Naranjo Orellana, Alfredo Santalla
The aim of this study was to analyse the influence of inspiratory muscle training (IMT) on ventilatory efficiency, in normoxia and hypoxia, and to investigate the relationship between ventilatory efficiency and cycling performance. Sixteen sport students (23.05 ± 4.7 years; 175.11 ± 7.1 cm; 67.0 ± 19.4 kg; 46.4 ± 8.7 ml·kg(-1)·min(-1)) were randomly assigned to an inspiratory muscle training group (IMTG) and a control group (CG). The IMTG performed two training sessions/day [30 inspiratory breaths, 50% peak inspiratory pressure (Pimax), 5 days/week, 6-weeks]...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28288302/whole-body-active-warm-up-and-inspiratory-muscle-warm-up-do-not-improve-running-performance-when-carrying-thoracic-loads
#4
Mark A Faghy, Peter Ian Brown
Whole body active warm ups (AWU) and inspiratory muscle warm up (IMW) prior to exercise improves performance on some endurance exercise tasks. This study investigated the effects of AWU with and without IMW upon 2.4 km running time-trial performance while carrying a 25 kg backpack, a common task and backpack load in physically demanding occupations. Participants (n = 9) performed five 2.4 km running time-trials with a 25 kg thoracic load preceded in random order by 1) IMW comprising 2 x 30 inspiratory efforts against a pressure-threshold load of 40 % maximal inspiratory pressure (PImax), 2) 10 min unloaded running (AWU) at lactate turnpoint (10...
March 13, 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27904539/the-effect-of-renal-transplantation-on-respiratory-muscle-strength-in-patients-with-end-stage-renal-disease
#5
Sasan Tavana, Samaneh Mirzaei
BACKGROUND: There is evidence of musculoskeletal and respiratory involvement in patients with chronic kidney disease (CKD). This is attributed to protein calorie imbalance that is caused by the disease process, and hemodialysis and is generally referred to as uremic myopathy. This results in calcification of respiratory muscles such as diaphragm and intercostal muscles. There are limited data about respiratory muscle strength in patients with CKD. We intended to evaluate the effect of kidney transplantation on respiratory muscles strength in patients with CKD...
2016: Tanaffos
https://www.readbyqxmd.com/read/27886855/electrically-induced-mechanomyograms-reflect-inspiratory-muscle-strength-in-young-or-elderly-subjects
#6
Shogo Watanabe, Ippei Nojima, Yuuna Agarie, Tatsunori Watanabe, Shinichi Fukuhara, Takeshi Fujinaga, Hisao Oka
BACKGROUND: Respiratory muscle strength has been used as a tool for evaluating respiratory rehabilitation in chronic obstructive pulmonary disease. However, mouth pressure measurement evaluated by maximum expiratory mouth pressure (PEmax) or inspiratory mouth pressure (PImax) offers an indirect method for measuring respiratory muscle strength. We demonstrated the evaluation of diaphragm contractility using a mechanomyogram (MMG), which is the mechanical signal generated by the motion of the diaphragm induced by the electric stimulation of the phrenic nerve...
November 2016: Respiratory Investigation
https://www.readbyqxmd.com/read/27812632/effects-of-passive-inhalation-of-cigarette-smoke-on-structural-and-functional-parameters-in-the-respiratory-system-of-guinea-pigs
#7
Thiago Brasileiro de Vasconcelos, Fernanda Yvelize Ramos de Araújo, João Paulo Melo de Pinho, Pedro Marcos Gomes Soares, Vasco Pinheiro Diógenes Bastos
Objective: To evaluate the effects of passive inhalation of cigarette smoke on the respiratory system of guinea pigs. Methods: Male guinea pigs were divided into two groups: control and passive smoking, the latter being exposed to the smoke of ten cigarettes for 20 min in the morning, afternoon and evening (30 cigarettes/day) for five days. After that period, inflammatory parameters were studied by quantifying mesenteric mast cell degranulation, as well as oxidative stress, in BAL fluid...
September 2016: Jornal Brasileiro de Pneumologia: Publicaça̋o Oficial da Sociedade Brasileira de Pneumologia e Tisilogia
https://www.readbyqxmd.com/read/27794081/reduced-chest-and-abdominal-wall-mobility-and-their-relationship-to-lung-function-respiratory-muscle-strength-and-exercise-tolerance-in-subjects-with-copd
#8
Hideo Kaneko, Shuichi Shiranita, Jun Horie, Shinichiro Hayashi
INTRODUCTION: Advanced air-flow limitation in patients with COPD leads to a reduction in vital capacity, respiratory muscle strength, and exercise capacity. However, its impact on chest and abdominal wall mobility is unknown. This study aimed to ascertain the prevalence of patients with COPD with reduced chest and abdominal wall mobility and to investigate the effect of reduced chest and abdominal wall mobility on pulmonary function, respiratory muscle strength, and exercise capacity...
November 2016: Respiratory Care
https://www.readbyqxmd.com/read/27611719/contractile-capability-of-the-diaphragm-assessed-by-ultrasonography-predicts-nocturnal-oxygen-saturation-in-copd
#9
Kazuki Okura, Atsuyoshi Kawagoshi, Masahiro Iwakura, Keiyu Sugawara, Hitomi Takahashi, Takeshi Kashiwagura, Mitsunobu Homma, Masahiro Satake, Takanobu Shioya
BACKGROUND AND OBJECTIVE: Diaphragm function might be useful to predict nocturnal oxygen desaturation in COPD. Ultrasonography has been widely used for the assessment of the diaphragm. We aimed to investigate the relationship between the contractile capability of the diaphragm assessed by ultrasonography and the nocturnal percutaneous arterial oxygen saturation (NSpO2 ) in COPD. METHODS: Twenty-eight male patients with COPD (age, 73 ± 7 years; forced expiratory volume in 1 s (FEV1 ), 54...
February 2017: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/27578892/maximum-inspiratory-pressure-is-a-discriminator-of-pneumonia-in-individuals-with-spinal-cord-injury
#10
Anja M Raab, Jörg Krebs, Claudio Perret, Franz Michel, Maria Te Hopman, Gabi Mueller
BACKGROUND: Respiratory complications remain a major cause of mortality among individuals with spinal-cord injury (SCI). The present study investigated whether respiratory function is a discriminator of pneumonia in individuals with SCI and is aimed to determine the best predictive parameter. METHODS: This was a retrospective cohort study. Individuals with traumatic SCI, level C3 to T12, complete and incomplete lesions, were included. Data on respiratory function were extracted from medical records...
December 2016: Respiratory Care
https://www.readbyqxmd.com/read/27555757/respiratory-muscle-strength-effect-on-linear-and-nonlinear-heart-rate-variability-parameters-in-copd-patients
#11
Cássia Da Luz Goulart, Julio Cristiano Simon, Paloma De Borba Schneiders, Elisabete Antunes San Martin, Ramona Cabiddu, Audrey Borghi-Silva, Renata Trimer, Andréa Lúcia Gonçalves da Silva
INTRODUCTION: Chronic obstructive pulmonary disease (COPD) is recognized as a multisystemic inflammatory disease associated with extrapulmonary comorbidities, including respiratory muscle weakness and cardiovascular and cardiac autonomic regulation disorders. We investigated whether alterations in respiratory muscle strength (RMS) would affect cardiac autonomic modulation in COPD patients. METHODS: This study was a cross-sectional study done in ten COPD patients affected by moderate to very severe disease...
2016: International Journal of Chronic Obstructive Pulmonary Disease
https://www.readbyqxmd.com/read/27506902/respiratory-muscle-assessment-in-acute-guillain-barr%C3%A3-syndrome
#12
S Walterspacher, A Kirchberger, J Lambeck, D J Walker, A Schwörer, W D Niesen, W Windisch, F Hamzei, H J Kabitz
PURPOSE: Guillain-Barré Syndrome (GBS) is a life-threatening disease due to respiratory muscle involvement. This study aimed at objectively assessing the course of respiratory muscle function in GBS subjects within the first week of admission to an intensive care unit. METHODS: Medical Research Council Sum Score (MRC-SS), vigorimetry, spirometry, and respiratory muscle function tests (inspiratory/expiratory muscle strength: PImax/PEmax, sniff nasal pressure: SnPna) were assessed twice daily...
October 2016: Lung
https://www.readbyqxmd.com/read/27488888/sex-differences-in-the-cardiovascular-consequences-of-the-inspiratory-muscle-metaboreflex
#13
Joshua R Smith, Ryan M Broxterman, Shane M Hammer, Andrew M Alexander, Kaylin D Didier, Stephanie P Kurti, Thomas J Barstow, Craig A Harms
It is currently unknown whether sex differences exist in the cardiovascular consequences of the inspiratory muscle metaboreflex. We hypothesized that the activation of the inspiratory muscle metaboreflex will lead to less of an increase in mean arterial pressure (MAP) and limb vascular resistance (LVR) and less of a decrease in limb blood flow (Q̇L) in women compared with men. Twenty healthy men (n = 10, 23 ± 2 yr) and women (n = 10, 22 ± 3 yr) were recruited for this study. Subjects performed inspiratory resistive breathing tasks (IRBTs) at 2% or 65% of their maximal inspiratory mouth pressure (PIMAX)...
September 1, 2016: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/27420588/inspiratory-work-capacity-is-more-severely-depressed-than-inspiratory-muscle-strength-in-patients-with-heart-failure-novel-applications-for-inspiratory-muscle-training
#14
Ioannis D Laoutaris, Stamatis Adamopoulos, Athanassios Manginas, Demosthenes B Panagiotakos, Dennis V Cokkinos, Athanasios Dritsas
BACKGROUND: We hypothesized that the ability to sustain maximal inspiratory pressure (SPImax) over time as a measure of work capacity may be more severely affected than inspiratory muscle strength (PImax) in patients with heart failure (HF). METHODS: We retrospectively investigated eighty patients with HF, NYHA II/III/ ambulatoryIV and a (mean±SD) LVEF 27±8%, and compared them to 25 healthy subjects (HS). During a maximal inspiratory manoeuvre from residual volume (RV) to total lung capacity, PImax was measured as the maximum mouth pressure at RV, inspiratory contraction time (ICT) as the time from RV to end of inspiration and SPImax as the area under a pressure-time curve using an electronic pressure manometer with designed-purpose software (Trainair(®), Project Electronics Ltd...
October 15, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27407022/diaphragmatic-ultrasonography-as-an-adjunct-predictor-tool-of-weaning-success-in-patients-with-difficult-and-prolonged-weaning
#15
Aikaterini Flevari, Michael Lignos, Dimitrios Konstantonis, Apostolos Armaganidis
BACKGROUND: Diaphragmatic ultrasonography has been recently considered as a new weaning predictor method. Previous studies checked diaphragmatic excursion and thickness during quiet or deep breathing in unselected populations of critically ill patients. Our study aimed to investigate diaphragmatic excursion during quiet and unassisted breathing, in comparison to standard predictor tools, such as Rapid Shallow Breathing Index (RSBI) and Maximal Inspiratory Pressure (Pimax), in patients with difficult and/or prolonged weaning...
November 2016: Minerva Anestesiologica
https://www.readbyqxmd.com/read/27380505/effects-of-load-mass-carried-in-a-backpack-upon-respiratory-muscle-fatigue
#16
Mark Faghy, Sam Blacker, Peter I Brown
PURPOSE: The purpose of this study was to investigate whether loads carried in a backpack, with a load mass ranging from 0 to 20 kg, causes respiratory muscle fatigue. METHODS: Eight males performed four randomised load carriage (LC) trials comprising 60 min walking at 6.5 km h(-1) wearing a backpack of either 0 (LC0), 10 (LC10), 15 (LC15) or 20 kg (LC20). Inspiratory (PImax) and expiratory (PEmax) mouth pressures were assessed prior to and immediately following each trial...
November 2016: European Journal of Sport Science
https://www.readbyqxmd.com/read/27195511/the-effect-of-exercise-training-with-an-additional-inspiratory-load-on-inspiratory-muscle-fatigue-and-time-trial-performance
#17
Serina J McEntire, Joshua R Smith, Christine S Ferguson, Kelly R Brown, Stephanie P Kurti, Craig A Harms
The purpose was to determine the effect of moderate-intensity exercise training (ET) on inspiratory muscle fatigue (IMF) and if an additional inspiratory load during ET (ET+IL) would further improve inspiratory muscle strength, IMF, and time-trial performance. 15 subjects were randomly divided to ET (n=8) and ET+IL groups (n=7). All subjects completed six weeks of exercise training three days/week at ∼70%V̇O2peak for 30min. The ET+IL group breathed through an inspiratory muscle trainer (15% PImax) during exercise...
August 2016: Respiratory Physiology & Neurobiology
https://www.readbyqxmd.com/read/27190224/effect-of-high-frequency-oscillations-on-cough-peak-flows-generated-by-mechanical-in-exsufflation-in-medically-stable-subjects-with-amyotrophic-lateral-sclerosis
#18
Jesús Sancho, Enric Bures, Saray de La Asunción, Emilio Servera
BACKGROUND: Mechanically assisted coughing with mechanical in-exsufflation (MI-E) is recommended for noninvasive management of respiratory secretions in amyotrophic lateral sclerosis (ALS). To improve the effectiveness of the technique, a new device combining MI-E with high-frequency oscillations (HFO) has been developed. This work aimed to assess the effect of HFO on the cough peak flow generated by MI-E in medically stable subjects with ALS. METHODS: This was a prospective study that included subjects with ALS in a medically stable condition...
August 2016: Respiratory Care
https://www.readbyqxmd.com/read/27163422/short-term-inspiratory-muscle-training-potentiates-the-benefits-of-aerobic-and-resistance-training-in-patients-undergoing-cabg-in-phase-ii-cardiac-rehabilitation-program
#19
RANDOMIZED CONTROLLED TRIAL
Bárbara Maria Hermes, Dannuey Machado Cardoso, Tiago José Nardi Gomes, Tamires Daros dos Santos, Marília Severo Vicente, Sérgio Nunes Pereira, Viviane Acunha Barbosa, Isabella Martins de Albuquerque
OBJECTIVE: To investigate the efficiency of short-term inspiratory muscle training program associated with combined aerobic and resistance exercise on respiratory muscle strength, functional capacity and quality of life in patients who underwent coronary artery bypass and are in the phase II cardiac rehabilitation program. METHODS: A prospective, quasi-experimental study with 24 patients who underwent coronary artery bypass and were randomly assigned to two groups in the Phase II cardiac rehabilitation program: inspiratory muscle training program associated with combined training (aerobic and resistance) group (GCR + IMT, n=12) and combined training with respiratory exercises group (GCR, n=12), over a period of 12 weeks, with two sessions per week...
July 2015: Revista Brasileira de Cirurgia Cardiovascular
https://www.readbyqxmd.com/read/27094394/correlation-between-maximum-inspiratory-pressure-and-hand-grip-force-in-healthy-young-and-middle-age-individuals
#20
Ioannis D Efstathiou, Irini P Mavrou, Konstantinos E Grigoriadis
BACKGROUND: This study aimed to examine the relationship between hand-grip force and maximum inspiratory pressure (PImax) in healthy young and middle-age individuals. METHODS: All individuals underwent assessment of inspiratory muscle strength by maximum inspiratory pressure using a U-type water manometer and evaluation of hand-grip force by a hydraulic hand dynamometer. RESULTS: The correlation of PImax and hand-grip force was strong (r = 0...
July 2016: Respiratory Care
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