scholarly journals Effects and Usefulness of Inspiratory Muscle Training Load in Patients with Advanced Lung Cancer with Dyspnea

Author(s):  
Yasunari Sakai ◽  
Takayoshi Yamaga ◽  
Shuhei Yamamoto ◽  
Keiji Matsumori ◽  
Takashi Ichiyama ◽  
...  

Abstract Background Patients with advanced lung cancer tend to develop dyspnea and the usefulness of non-drug therapy. On the contrary, inspiratory muscle training (IMT) exerts a relatively lower burden on patients; however, its usefulness has not been demonstrated. This study aimed to clarify the effects and usefulness of IMT in patients with advanced lung cancer with dyspnea. Methods We retrospectively analyzed 46 patients with advanced lung cancer hospitalized for medical treatment. The participants were categorized into the exercise therapy group, which served as control, and the IMT load + exercise therapy group, who performed IMT at a load of 30–40% of the maximal inspiratory pressure (MIP) in addition to exercise therapy. Results No patient dropped out owing to IMT load. The MIP variations had a significant interaction between group and period and that those in the IMT load + exercise therapy group increased, with significant differences between baseline and week 1, between week 1 and week 2, as well as between baseline and week 2. The analysis also demonstrated that the variations of dyspnea at rest and on exertion had a significant interaction between group and period and that those in the IMT load + exercise therapy group decreased with significant differences between baseline and week 1 as well as between baseline and week 2. Conclusions This study revealed that IMT load significantly improved MIP and dyspnea in patients with advanced lung cancer. In addition, the persistence rate of IMT in these patients was high.

2020 ◽  
pp. 026921552098013
Author(s):  
Jui-Fang Liu ◽  
Nai-Ying Kuo ◽  
Teng-Pei Fang ◽  
Jui-O Chen ◽  
Hung-I Lu ◽  
...  

Objective: To compare the postoperative outcomes of inspiratory muscle training and aerobic exercise, along with standard care, on lung cancer patients undergoing video-assisted thoracoscopic surgery (VATS). Design: A parallel-group, single-blind randomized clinical trial Setting: Thoracic surgery ward and outpatient clinic in a teaching hospital Subjects: Overall 63 patients underwent VATS were randomly assigned to a triaging (TG, n = 32) or control group (CG, n = 31). A total of 54 patients (TG, n = 26; CG, n = 28) completed the study. Intervention: TG: six-week threshold inspiratory muscle training and aerobic exercise. CG: standard care. Main measures: Maximum inspiratory pressure (PImax), maximum expiratory pressure (PEmax) lung expansion volume, and 6-min walking test (6MWT) were performed on the day of chest tube removal (baseline), and 2, 6, and 12 weeks postoperatively. Results: The TG showed significant improvement in PImax at week 6 (71.6 ± 34.9 vs. 94.3 ± 32.8 cmH2O, P = 0.018), PEmax at week 2 (70.9 ± 24.3 vs. 90.9 ± 28.2 cmH2O, P = 0.015) and week 12 (76.1 ± 20.2 vs. 98.6 ± 35.3 cmH2O, P = 0.012), the lung expansion volume at week 2 (1080 ± 433 vs 1457 ± 624 mL, P = 0.02) and week 12 (1200 ± 387 vs 1885 ± 678 mL, P < 0.001), in addition to the 6MWT at week 2 (332 ± 78 vs 412 ± 74 m, P = 0.002), week 6 (360 ± 70 vs 419 ± 60 m, P = 0.007) and week 12 (360 ± 58 vs 402 ± 65 m, P = 0.036). Conclusion: A six weeks of inspiratory muscle training and aerobic exercise had improved respiratory muscle strength and aerobic exercise postoperatively in lung cancer patients after VATS as early as 2 weeks.


2017 ◽  
Vol 12 (1) ◽  
pp. S206-S208 ◽  
Author(s):  
Andreas Charalambous ◽  
Alexander Molassiotis ◽  
Yvonne Summers ◽  
Zoe Stamataki ◽  
Paul Taylor

2019 ◽  
Vol 14 (8) ◽  
pp. 1124-1131 ◽  
Author(s):  
Daniel G. Hursh ◽  
Marissa N. Baranauskas ◽  
Chad C. Wiggins ◽  
Shane Bielko ◽  
Timothy D. Mickleborough ◽  
...  

Endurance exercise performance in hypoxia may be influenced by an ability to maintain high minute ventilation () in defense of reduced arterial oxyhemoglobin saturation. Inspiratory muscle training (IMT) has been used as an effective intervention to attenuate the negative physiological consequences associated with an increased , resulting in improved submaximal-exercise performance in normoxia. However, the efficacy of IMT on hypoxic exercise performance remains unresolved. Purpose: To determine whether chronic IMT improves submaximal-exercise performance with acute hypoxic exposure. Methods: A total of 14 endurance-trained men completed a 20-km cycling time trial (TT) in normobaric hypoxia (fraction of inspired oxygen [FiO2] = 0.16) before and after either 6 wk of an IMT protocol consisting of inspiratory loads equivalent to 80% of sustained maximal inspiratory pressure (n = 9) or a SHAM protocol (30% of sustained maximal inspiratory pressure; n = 5). Results: In the IMT group, 20-km TT performance significantly improved by 1.45 (2.0%), P = .03, after the 6-wk intervention. The significantly faster TT times were accompanied by a higher average (pre vs post: 99.3 [14.5] vs 109.9 [18.0] L·min−1, P = .01) and absolute oxygen uptake (pre vs post: 3.39 [0.52] vs 3.60 [0.58] L·min−1, P = .010), with no change in ratings of perceived exertion or dyspnea (P > .06). There were no changes in TT performance in the SHAM group (P = .45). Conclusion: These data suggest that performing 6 wk of IMT may benefit hypoxic endurance exercise performance lasting 30–40 min.


2017 ◽  
Vol 42 ◽  
pp. 391
Author(s):  
Gisele Martins Leite dos Santos ◽  
João Victor Alvares Guzzo ◽  
Ivete Alonso Bredda Saad ◽  
Luciana Castilho de Figueiredo ◽  
Desanka Dragosavac ◽  
...  

2021 ◽  
pp. 026921552098404
Author(s):  
Susan Martins Lage ◽  
Danielle Aparecida Gomes Pereira ◽  
Anna Luísa Corradi Magalhães Nepomuceno ◽  
Anna Cláudia de Castro ◽  
Augusto Gonçalves Araújo ◽  
...  

Objective: To evaluate the efficacy of an inspiratory muscle training protocol on inspiratory muscle function, functional capacity, and quality of life in patients with asthma. Design: A single-blind, randomized controlled clinical trial. Setting: Community-based. Subjects: Patients with asthma, aged between 20 and 70 years old, non-smokers. Interventions: Participants were randomized into two groups: inspiratory muscle training group performed inspiratory muscle training 5 days a week for 8 weeks, consisting of six sets of 30 breaths per day with a training load ⩾50% of maximal inspiratory pressure, plus an educational program; the control group only received the educational program. Main measurements: Maximal inspiratory pressure, inspiratory muscle endurance, and the distance performed on the incremental shuttle walking test were assessed pre-intervention, post-intervention and at follow-up (3 months after the end of the intervention). The asthma quality of life questionnaire was applied pre and post-intervention. Results: Data from 39 participants were analyzed. Maximal inspiratory pressure in percentage of predicted and endurance test duration were significantly higher post-intervention in the inspiratory muscle training group (∆ post–pre: 50.8% vs 7.3% of predicted – P < 0.001 and ∆ post–pre: 207.9 seconds vs 2.7 seconds – P < 0.001, respectively). There was no significant difference in the incremental shuttle walking distance between groups (∆ post–pre: 30.9 m vs −8.1 m, P = 0.165). Quality of life was perceived as significantly better, without a difference between groups ( P > 0.05). Conclusions: About 8 weeks of inspiratory muscle training in patients with controlled asthma significantly increased inspiratory muscle strength and endurance.


Circulation ◽  
2008 ◽  
Vol 118 (suppl_18) ◽  
Author(s):  
Priscila Mello ◽  
Grazia Guerra ◽  
Pedro Dall’ago ◽  
Suellen Borille ◽  
Maria U Rondom ◽  
...  

Background: Inspiratory muscle training (IMT) improves functional capacity of patients with CHF but the mechanisms of this effect are unknown. Objective: We tested the hypothesis that IMT could decrease sympathetic activity and improve the reflex muscle vasodilatory response during exercise in patients (CHF) and inspiratory muscle weakness. Methods: Six patients with CHF and inspiratory muscle weakness (maximal inspiratory pressure <70% of predicted) NYHA Class II–III, EF <35%, peak VO(2) < 20 ml/kg/min, were submitted to a IMT during 12 weeks (30 minute breathing with an inspiratory resistance of 30% of maximal inspiratory pressure). Muscle sympathetic nerve activity (MSNA) was recorded by microneurography, LF (sympathetic) and HF (parasympathetic) components of the heart rate variability and LF/HF ratio were assessed by the use of power spectral analysis of RR interval. Forearm blood flow (FBF) was measured by venous occlusion plethysmography at baseline and during hand grip (HG) manouver. Paired student t-test was used to analyze the impact of IMT in this population. Results: Compared to baseline, IMT significantly (p < 0,05) caused: an increase in inspiratory muscle force by 130%; a 15% reduction in MSNA (40 ± 1 vs 33 ± 1 bursts/min); an increase in forearm blood flow (0.8+/−0.1 mL/min/100 g) during HG manouver; a decrease in LF% (59 ± 5 vs 39 ± 3 U); an increase in HF% (40 ± 5 vs 61 ± 3 U); a decrease in LF/HF ratio (1,74 vs 0,66). Conclusions: Twelve weeks of Inspiratory muscle training in patients with CHF and inspiratory muscle weakness promoted a significant improvement in cardiovascular parameters, such as increase in limb blood flow, cardiac autonomic balance and baroreflex sensitivity, associated with a decrease in peripheral sympathetic activity.


Author(s):  
Matheus Martins de Sousa ◽  
Matheus dos Santos Pimentel ◽  
Isabela de Andrade Sobreira ◽  
Rondineli de Jesus Barros ◽  
Audrey Borghi-Silva ◽  
...  

AbstractInspiratory muscle training represents a recommended clinical practice to improve physical performance of healthy individuals, athletes, and those with chronic diseases. This study aimed to evaluate whether high- and low-intensity inspiratory muscle training interferes with the aerobic capacity of indoor soccer players. Volunteers were equally and randomly divided into CON (control group, no inspiratory muscle training); HIG (high-intensity group, inspiratory muscle training at 80% of maximal inspiratory pressure, 3 sets of 12 repetitions); and LIG (low-intensity group, inspiratory muscle training at 50% of maximal inspiratory pressure, 2 sets of 20 repetitions). Before and after inspiratory muscle training, maximal inspiratory and expiratory pressures, the incremental shuttle run test, and the 3-min step test were evaluated. Both inspiratory muscle training protocols improved maximal inspiratory and expiratory pressures, and indirect maximal oxygen consumption and distance traveled in the shuttle test compared to CON. However, only HIG achieved significant increases of indirect oxygen consumption and frequency of step rise in the 3-min step test (p<0.05). Inspiratory muscle training is an important tool to enhance maximal inspiratory pressure and exercise tolerance with potential benefits on submaximal aerobic capacity. However, high-intensity inspiratory muscle training improved aerobic capacity in amateur indoor soccer players in both submaximal tests.


2018 ◽  
Vol 25 (16) ◽  
pp. 1691-1701 ◽  
Author(s):  
Zahra Sadek ◽  
Ali Salami ◽  
Wissam H Joumaa ◽  
Charifa Awada ◽  
Said Ahmaidi ◽  
...  

Objectives The objective of this study was to evaluate the effects of inspiratory muscle training on inspiratory muscle strength, functional capacity and dyspnoea for patients with chronic heart failure, by summarising the published research on the effects of inspiratory muscle training. To identify the best mode of intervention in terms of: the load of maximal inspiratory pressure; the frequency of sessions; and the total duration of intervention. Methods A relevant literature research using the PubMed database, Cochrane and references of published studies, from 1998 to 2016, was conducted. Out of 65 randomised controlled trials, seven were considered as potentially relevant and were retrieved for detailed analysis. The methodological quality of each randomised controlled trial was rated using the physiotherapy evidence database scale. Results The included seven studies contained data on 203 patients. Typical training protocols involved training three, six or seven times per week with intensity ranging from 30% to 60% and for a duration ranging from 6 to 12 weeks. Maximal inspiratory pressure, walking distance and dyspnoea were improved in all studies and especially in those who set a load of 60% in their maximal inspiratory pressure, and have trained patients six times per week for 12 weeks. Conclusion In chronic heart failure patients, inspiratory muscle training results in a marked improvement in inspiratory muscle strength, walking distance and dyspnoea, notably when training patients at 60% of maximal inspiratory pressure, six times per week and for 12 weeks. A small number of studies and heterogeneity among studies may limit the findings of the present study.


2002 ◽  
Vol 9 (5) ◽  
pp. 307-312 ◽  
Author(s):  
Paltiel Weiner ◽  
Rasmi Magadle ◽  
Marinella Beckerman ◽  
Noa Berar-Yanay

BACKGROUND: It is well documented that the perception of dyspnea (POD), subjectively reported by patients, is related to the activity and strength of the inspiratory muscles, and influences the use of 'as needed' beta2-agonists.STUDY OBJECTIVE: To investigate the relationship among the increase in inspiratory muscle strength after specific inspiratory muscle training, beta2-agonist consumption and the POD in patients with persistent, mild to moderate asthma.METHODS: Inspiratory muscle strength, daily beta2-agonist consumption and the POD were measured in 30 patients with mild to moderate asthma. Patients were then randomly assigned to two groups: one group received specific inspiratory muscle training until an increase of more than 20 cm H2O was reached, and one group was a control group and received sham training. Inspiratory muscle strength, the POD and daily beta2-agonist consumption were assessed during and after the training period.RESULTS: There was no good correlation between the baseline maximal inspiratory pressure and the POD, or between the baseline maximal inspiratory pressure and the mean daily beta2-agonist consumption. However, there was a significant correlation between the POD and the mean daily beta2-agonist consumption. The increase in inspiratory muscle strength after the inspiratory muscle training was closely correlated with the decrease in the POD (P<0.001) and the decrease in beta2-agonist consumption (P<0.001).CONCLUSIONS: The present study shows that, in patients with mild to moderate, persistent asthma, there is a correlation between the POD and the mean daily beta2-agonist consumption. When the inspiratory muscles are strengthened, there is a significant decrease in the POD and in beta2-agonist consumption.


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