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. 2012 Jan;35(1):28-34.
doi: 10.1179/2045772311Y.0000000047.

Reproducibility and effect of posture on impulse oscillation parameters in persons with spinal cord injury

Christopher M Cirnigliaro  1 , Marvin Lesser, Jeremy Moyer, Steven C Kirshblum, William A Bauman, Ann M Spungen
Affiliations

Reproducibility and effect of posture on impulse oscillation parameters in persons with spinal cord injury

Christopher M Cirnigliaro et al. J Spinal Cord Med. 2012 Jan.

Abstract

Background: The impulse oscillation system (IOS) offers significant value in the assessment of airway dynamics in persons with spinal cord injury (SCI) because of minimal patient effort but measurement reproducibility in SCI is unknown.

Objective: To evaluate between-day reproducibility and the effect of posture on airway resistance [respiratory resistances at 5 Hz (R5) and 20 Hz (R20)] in subjects with tetraplegia, paraplegia and able-bodied controls.

Methods: Ten subjects with tetraplegia, 10 subjects with paraplegia and 11 able-bodied individuals were evaluated using IOS. Three 30 second trials were obtained in each while in the seated and supine position on Day 1, and repeated on Day 2.

Results: The within-day coefficient of variation (CV%) for R5 and R20 were comparable in the 3 study groups in the seated and supine positions. Compared to controls, the between-day CV% for the combined data was higher in subjects with tetraplegia and paraplegia for R5 seated, and was higher in subjects with tetraplegia for R5 supine.

Conclusions: IOS has applicability to the study of within-day respiratory resistance in SCI. However, performing longer-term studies in subjects with tetraplegia and paraplegia may be problematic because of the greater variability for R5 when compared to able-bodied individuals.

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Figures

Figure 1
Figure 1
The use of the IOS in the seated (A) and supine (B) positions is shown. A staff member is shown providing hand support to the cheeks of the subject.
Figure 2
Figure 2
The coefficient of variation and 95% confidence intervals for within-day and between-day for (A) R5 seated (*P < 0.01 para versus control; ‡P < 0.005 tetra versus control), (B) R20 seated, (C) R5 supine (‡P < 0.05 tetra versus para and §P < 0.05 tetra versus control), and (D) R20 supine. formula image cont, able-bodied control subjects, formula image para, subjects with paraplegia, and formula image tetra, subjects with tetraplegia.
Figure 3
Figure 3
The percent change from seated to supine position (mean ± standard deviation) for R5 (§P < 0.05 tetra versus para and controls) and R20 (‡P < 0.01 tetra versus para and controls). formula image cont, able-bodied control subjects, formula image para, subjects with paraplegia, and formula image tetra, subjects with tetraplegia.
See this image and copyright information in PMC

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References

    1. Oostveen E, MacLeod D, Lorino H, Farre R, Hantos Z, Desager K, et al. The forced oscillation technique in clinical practice: methodology, recommendations and future developments. Eur Respir J 2003;22(4):1026–41 - PubMed
    1. Smith HJ, Reinhold P, Goldman MD. Forced oscillation technique and impulse oscillometry. Eur Respir Monograph 2005;31(chapter 5):72–105
    1. Goldman MD, Saadeh C, Ross D. Clinical applications of forced oscillation to assess peripheral airway function. Respir Physiol Neurobiol 2005;148(1–2):179–94 - PubMed
    1. Ashba J, Garshick E, Tun CG, Lieberman SL, Polakoff DF, Blanchard JD, et al. Spirometry-acceptability and reproducibility in spinal cord injured subjects. J Am Paraplegia Soc 1993;16(4):197–203 - PubMed
    1. Kelley A, Garshick E, Gross ER, Lieberman SL, Tun CG, Brown R. Spirometry testing standards in spinal cord injury. Chest 2003;123(3):725–30 - PMC - PubMed

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