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Corridor and real-time 6-minute walk tests in healthy young adults: A randomized cross-over study
Mohamed A Al Maghraby1, Ali M Alshami1, Qassim I Muaidi1
1Department of Physical Therapy, Imam Abdulrahman Bin Faisal University, Dammam, KSA.
Objective:
Cardiopulmonary endurance is important for comfortably participating in activities of daily living. Exercise tests, such as the 6-minute walk test (6MWT), are commonly used to evaluate cardiopulmonary endurance. We investigated the effects of the Gait Real-Time Analysis Interactive Lab (GRAIL)- and corridor-based 6MWTs on functional performance.
Methods:
Thirty healthy men were randomly divided into two groups. Group A participants performed a corridor-based 6MWT, followed by a washout period (1 h). Subsequently, they performed the GRAIL-based 6MWT. Group B participants performed the tests in the reverse order of that performed by Group A participants.
Results:
The corridor-based 6MWT resulted in significantly higher 6MW distance and 6MW speed than the GRAIL-based 6MWT. No significant differences were observed between the two groups in any of the following secondary outcomes: systolic blood pressure, diastolic blood pressure, oxygen saturation, heart rate, dyspnea, and overall fatigue. A strong positive correlation was observed between the 6MW distance and 6MW speed.
Conclusion:
The corridor- and GRAIL-based 6MWT should not be used interchangeably.
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