UNCORRECTED

Sains Malaysiana 39(5)(2010): 863–868

Comparison of Physiological Responses to Six Minute Walk Test and Incremental Shuttle Walk Test Among COPD Patients in UKMMC

(Perbandingan Respons Fisiologi Kepada Ujian Jalan Enam Minit dan Ujian Jalan Ulang-Alik Meningkat  di Kalangan Pesakit COPD di PPUKM)

R. Ayiesah * & Y. Y. Chang

Physiotherapy Programme, Faculty of allied Health Sciences

University Kebangsaan Malaysia, Jalan Raja Muda Abdul Aziz

50300 Kuala Lumpur, Malaysia

Received : 25 August 2009 / Accepted: 22 February 2010

ABSTRACT

The objective of the study was to compare the physiological responses among COPD patient to Six Minute Walk Test (6MWT) and Incremental Shuttle Walk Test (ISWT). Twenty subjects were recruited for both 6MWT and ISWT that was carried out randomly. The readings of oxygen saturation (SpO2 ), heart rate (HR) and Modified Borg’s Score (MBS) were being taken before, during (each minute) and after each test. There were no significant difference observed in the peak HR and MBS between 6MWT and ISWT. There was no significant difference observed in the end SpO2 after both tests. In the two tests, HR and MBS increased linearly and were proportionate with time. However, our results showed that the distance walked in both test were significantly different and strongly related with more distance covered in 6MWT, with p < 0.05 (p = 0.01) and R = 0.58. Both 6MWT and ISWT elicited similar peak HRs and MBS suggesting both tests could be used to challenge patient to certain levels of cardiovascular and respiratory stress. There was no significant difference found in this study between the two tests. The two field tests could produce similar physiological responses in COPD patient.

Keywords: COPD; ISWT; 6MWT

ABSTRAK

Objektif kajian ini ialah untuk membandingkan perubahan fisiologi di kalangan pesakit COPD kepada Ujian Jalan Enam Minit (6MWT) dan Ujian Jalan Ulang-Alik Meningkat (ISWT). Sejumlah 20 subjek telah direkrut untuk 6MWT dan ISWT yang dilakukan secara rawak. Bacaan ketepuan oksigen (SpO2), kadar denyutan jantung (HR) dan O2 Skor Borg’s Termodifikasi (MBS) telah diambil sebelum, semasa (setiap minit) dan selepas ujian. Tiada perbezaan yang tekal diperoleh dalam peak HR dan MBS antara ujian 6MWT dan ISWT yang dilakukan. Tiada perubahan yang signifikan diperolehi dalam SpO2 akhir setelah menjalani kedua-dua ujian. Dalam kedua-dua ujian, HR dan MBS meningkat secara linear dan berkadar langsung dengan masa. Namun kajian menunjukkan jarak berjalan dalam kedua-dua ujian mempunyai perbedzaan yang bererti dan hubungan yang agak kuat berkait dengan pertambahan jarak di dalam 6MWT, dengan p<0.05(p=0.01) dan R=0.58. Ujian 6MWT dan ISWT menghasilkan peak HR dan MBS yang bersamaan menunjukkan ujian-ujian tersebut boleh digunakan untuk menguji tahap keupayaan kardiovaskular dan tekanan respiratori. Kajian ini menunjukkan tiada perbezaan yang bererti di antara kedua-dua ujian. Kedua-dua ujian boleh menghasilkan respons fisiologi yang sama di kalangan pesakit COPD.

Kata kunci: COPD; ISWT; 6MWT

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*Corresponding author; email: kamalia086@gmail.com