SHA24/036006

Influence Of Physical Activity Level On Saudi Reference Value OF 6-Mimute Walk Test.

Salwa El-Sobkey, Associate Professor King Saud University College of Applied Medical Sciences Department of Rehabilitation Health Sciences

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This Study…Why?

Exercise capacity in cardiopulmonary patients

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This study‌ Why? Exercise stress test Vs. 6MWT

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This study‌ why?

6-MWT

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This study‌ Why? Reference values

• Availability of reference value for the 6Minutes Walked Distance (6-MWD) is essential to guide the diagnostic and prognostic use of the 6-MWT test.

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This study… Why? Reference values

• Many studies proved that 6-MWD reference value is a population-based.

• The generated regression models to estimate the 6-MWD in different populations were of different predictors.

• Table 10.docx 04/06/13

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This study‌ Why?

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This study‌ Why? • Limitations of that study as mentioned by the authors included Participants age (16-50 years) Ignorance of the physical Activity Level

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This study‌ Why?

Saudi Physical Activity Level

• Prof. Al-Hazzaa (KSU) in his review (2004) found a high prevalence (43.3%-99.5%) of physical inactivity among Saudi children and adults.

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This study‌ Why? Saudi Physical Activity Level

• Dr. Al-Eisa and Dr. Al-Sobayel (2011) (KSU) found that the step count using pedometer for Saudi women was lower than the international recommendation of 10,000 steps per day

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This study‌ Why? Saudi Physical Activity Level

• Prof. Al-Nozha (Tibah University) with co-investigators (2007) studied the prevalence of physical activity and inactivity among Saudis aged 30-70 years and their findings revealed the sedentary nature of Saudi population as the majority of men and women did not reach the recommended physical activity levels necessary for promoting health and preventing diseases.

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This study… Why?

• This study aimed to answer the question: does physical activity level influence the Saudi reference value of 6-MWT?

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Participants • Participants in the current study were 359 healthy Saudi subjects (70.5% females) aged from 18-71 years (mean ± SD is 31.0 ± 14.0 years).

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Protocol • The 6-MWT was used following the standardized protocol of the American Thoracic Society .

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Outcome

The 6-MWD Defined as the maximum covered distance with 6 minutes walking.

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Other measurements • Participant’s physical activity level was measured by the Short Form of the International Physical Activity Questionnaire

Low

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Moderate

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High

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Other measurements • Before and after the 6-MWT the following variables were measured; • Heart Rate, systolic and diastolic blood pressure, SaO2, RR. 04/06/13

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Other measurements

• Perceived fatigue and dyspnea.

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Results Saudi 6-MWD was age-related

• Table 3-age.docx

6-MWD Age

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Results

Saudi 6-MWD was Gender-related

• Table 5-Gender .docx 04/06/13

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Results

Saudi 6-MWD related to Physical Activity Level

6-MWD

Low

Moderate

High

• Table 6- PAL.docx 04/06/13

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Results Correlations of Saudi 6-MWD

• Table 8-Correlations.docx

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Results Saudi Regression Model

6-MWD = (74.31 X physical activity level) + (33.88 X gender) – (4.25 X age) + 342.650, with female gender = 0 and male gender = 1

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• The Physical activity level along with the age and gender influence the reference values of 6-MWD of healthy Saudi subjects aged from 18-71 years.

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Clinical Implication • Physical therapists, physicians and exercise physiologists would evaluate the exercise capacity of their Saudi cardiopulmonary patients by comparing

Cardiopulmonary patient’s 6-MWD

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Matching healthy subjects 6-MWD

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• Increase the physical activity level should be a public health concern. • Similar studies should be continued including more wider scale of population, cover more cities than Riyadh and include the age group below 18 years.

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Acknowledgment • I would like to thank my students at physical therapy program who assisted in recruiting the study participants.

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Thank You

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