2010
DOI: 10.1590/s1413-35552010005000013
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Ventilatory and muscular assessment in healthy subjects during an activity of daily living with unsupported arm elevation

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Cited by 21 publications
(20 citation statements)
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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%
“…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%
“…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%
“…(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%