Ventilatory and muscular assessment in healthy subjects during an activity of daily living with unsupported arm elevation

Panka, Giselle F. L.; Oliveira, Maíra Maciel Mattos de; França, Danielle C.; Parreira, Verônica Franco; Britto, Raquel Rodrigues; Velloso, Marcelo

doi:10.1590/s1413-35552010005000013

Cited by 21 publications

(20 citation statements)

References 33 publications

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“…Compared with healthy subjects, 46 our COPD subjects had a more pronounced drop in the slope of the median frequency (Ϫ0.67 vs Ϫ3.77, respectively). Even in healthy subjects (61 Ϯ 6 y old) performing ADLs with unsupported arm elevation, Panka et al 47 found changes in breathing pattern and greater activation of the sternocleidomastoid.…”

Section: Discussionmentioning

confidence: 99%

Upper and Lower Limb Muscles in Patients With COPD: Similarities in Muscle Efficiency But Differences in Fatigue Resistance

et al. 2013

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BACKGROUND: Peripheral muscle dysfunction is a common finding in patients with COPD; however, the structural adaptation and functional impairment of the upper and lower limb muscles do not seem to be homogenous. We compared muscle fatigue and recovery time between 2 representative muscles: the middle deltoid and the quadriceps femoris. METHODS: Twenty-one subjects with COPD (FEV 1 46.1 ؎ 10.3% of predicted) underwent maximal voluntary isometric contraction and an endurance test (60% of maximal voluntary isometric contraction, to the limit of tolerance). The maximal voluntary isometric contraction test was repeated after 10 min, 30 min, 60 min, and 24 hours for both the quadriceps femoris and middle deltoid. Surface electromyography was recorded throughout the endurance test. RESULTS: Maximal voluntary isometric contraction significantly decreased only for the middle deltoid between 10 and 60 min after the endurance test. A significant increase of the root mean square and a greater decline in median frequency throughout the endurance test occurred for the middle deltoid, compared with the quadriceps femoris. When dyspnea and fatigue scores were corrected by endurance time, higher values were observed for the middle deltoid (0.07 and 0.08, respectively) in relation to the quadriceps femoris (0.02 and 0.03, respectively). CONCLUSIONS: Subjects with COPD had a higher fatigability of a representative upper limb muscle (middle deltoid) than a lower limb muscle (quadriceps femoris).

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Section: Discussionmentioning

confidence: 99%

Upper and Lower Limb Muscles in Patients With COPD: Similarities in Muscle Efficiency But Differences in Fatigue Resistance

et al. 2013

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“…This result indicates indirectly an overload of the respiratory muscles which is attributed to; 1) applications of low pressures (IPAP = 10) and (EPAP = 4), low EPAP pressure was insufficient to counter balance intrinsic positive end expiratory pressure (iPEEP) with more load on the inspiratory muscles. 2) the application of upper limb exercises as reported by many results of studies [43][44][45] that COPD patients always complaining from more dyspnea after performing prolonged tasks with unsupported elevated upper limbs compared to lower limb exercises. This fact demonstrates the possibility of upper limb exercises to generate greater dynamic hyperinflation than lower limb exercises.…”

Section: Discussionmentioning

confidence: 99%

Non-invasive positive pressure ventilation and exercise training in patients with stable hypercapnic chronic obstructive pulmonary disease

Gad

El-Shafey

2015

Egyptian Journal of Chest Diseases and Tuberculosis

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Background: Chronic obstructive pulmonary disease (COPD) is a disease with progressive course of dyspnea which leads to reduced health related quality of life (HRQoL). Exercise training has useful effects toward their exercise tolerance and health related quality of life (HRQoL). However extreme breathlessness limits these patients in maintaining exercise training. Non-invasive positive pressure ventilation (NIPPV) is considered a beneficial treatment option for chronic stable hypercapnic respiratory failure. So, the aim of this study is to assess the effect of adding NIPPV to Exercise training program compared to Exercise training program alone in stable hypercapnic COPD patients.Patients and methods: Thirty patients with stable hypercapnic COPD were selected, subdivided into two groups; 15 patients underwent Exercise training alone (Ex. group) and another 15 patients performed Exercises training in association with receiving NIPPV (Ex. + NIPPV group). Baseline and after 3 months assessment of arterial blood gases analysis (ABGs), pulmonary function tests (PFTs), dyspnea scale by modified Medical Research Council (mMRC) and assessment of HRQoL guided by COPD Assessment Test (CAT) were done for both groups.Results: In the Exercise training group, they showed statistical significant improvement in dyspnea scale (mMRC) and CAT score after 3 month performance (p < 0.05), but insignificant changes occurred in their ABGs or PFTs (p > 0.05). While in the Ex. + NIPPV group, a highly statistical significant improvement regarding PCO 2 , FEV 1 and dyspnea scale (mMRC) (p 6 0.001) and a significant difference as regards HRQoL assessment score (p < 0.05) were found after 3 month follow up.Conclusion: Addition of NIPPV to exercise training in patients with stable hypercapnic COPD patients improved PCO 2 , FEV 1 , dyspnea scale and HRQoL.

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“…(11) According to the authors, the contributions of the rib cages and abdomens of anesthetized children were insufficient to derive K. One of the findings of the present study was the contribution of the rib the gold standard method (ISOCAL), various studies have suggested the use of the QDC method. (11)(12)(13)(14) One of the major advantages of the QDC method is that it is easy to perform, given that, for QDC, individuals need only maintain baseline breathing for 5 min, and calibration is performed on the basis of the variation in the results obtained for each compartment. This method is questionable in view of the RIP calibration principle, i.e., variation in calibration because of volume shifts between the rib cage and abdomen.…”

Section: Discussionmentioning

confidence: 99%

“…(4,8,9) Although ISOCAL is considered the gold standard for RIP calibration, the vast majority of studies employ QDC because the method requires no specific respiratory maneuvers. (10)(11)(12)(13) We are unaware of any studies comparing the two methods of RIP calibration regarding the values of the constant K when different positions are employed. …”

mentioning

confidence: 99%

Pletismografia respiratória por indutância: estudo comparativo entre calibração por manobra de isovolume e calibração qualitativa diagnóstica em voluntários saudáveis avaliados em diferentes posturas

2012

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Objective: To compare two methods of respiratory inductive plethysmography (RIP) calibration in three different positions. Methods: We evaluated 28 healthy subjects (18 women and 10 men), with a mean age of 25.4 ± 3.9 years. For all of the subjects, isovolume maneuver calibration (ISOCAL) and qualitative diagnostic calibration (QDC) were used in the orthostatic, sitting, and supine positions. In order to evaluate the concordance between the two calibration methods, we used ANOVA and Bland-Altman plots. Results: The values of the constant of proportionality (K) were significantly different between ISOCAL and QDC in the three positions evaluated: 1.6 ± 0.5 vs. ResumoObjetivo: Comparar dois métodos de calibração da pletismografia respiratória por indutância (PRI) em três posturas diferentes. Métodos: Foram avaliados 28 indivíduos saudáveis (18 mulheres e 10 homens), com média de idade de 25,4 ± 3,9 anos. Todos os indivíduos foram submetidos a isovolume maneuver calibration (ISOCAL, calibração por manobra de isovolume) e qualitative diagnostic calibration (QDC, calibração diagnóstica qualitativa) em ortostatismo, sedestação e decúbito dorsal. Foi utilizada ANOVA e a disposição gráfica de Bland-Altman para a avaliação da concordância dos métodos de calibração. Resultados: Os valores da constante de proporcionalidade (K) foram significativamente distintos entre ISOCAL e QDC nas três posturas avaliadas: 1,6 ± 0,5 vs. 2,0 ± 1,2, em decúbito dorsal; 2,5 ± 0,8 vs. 0,6 ± 0,3, em sedestação; e 2,0 ± 0,8 vs. 0,6 ± 0,3, em ortostatismo (p < 0,05 para todos). Conclusões: Nossos resultados sugerem que QDC não é um método acurado para a calibração da PRI. Os valores de K obtidos por ISOCAL mostram que a PRI deve ser calibrada para cada postura avaliada.Descritores: Pletismografia; Mecânica respiratória; Postura; Calibragem. where SD(∆ U V AB ) and SD(∆ U V CT ) are the standard deviations of the electrical signals related to the abdomen and rib cage, respectively. (4,8,9) Although ISOCAL is considered the gold standard for RIP calibration, the vast majority of studies employ QDC because the method requires no specific respiratory maneuvers. (10)(11)(12)(13) We are unaware of any studies comparing the two methods of RIP calibration regarding the values of the constant K when different positions are employed.

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Ventilatory and muscular assessment in healthy subjects during an activity of daily living with unsupported arm elevation

Cited by 21 publications

References 33 publications

Upper and Lower Limb Muscles in Patients With COPD: Similarities in Muscle Efficiency But Differences in Fatigue Resistance

Upper and Lower Limb Muscles in Patients With COPD: Similarities in Muscle Efficiency But Differences in Fatigue Resistance

Non-invasive positive pressure ventilation and exercise training in patients with stable hypercapnic chronic obstructive pulmonary disease

Pletismografia respiratória por indutância: estudo comparativo entre calibração por manobra de isovolume e calibração qualitativa diagnóstica em voluntários saudáveis avaliados em diferentes posturas

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