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ORIGINAL ARTICLE
Year : 2017  |  Volume : 4  |  Issue : 2  |  Page : 75-78

Comparison of functional ramp walk test and 6-min walk test in healthy volunteers: A new approach in functional capacity evaluation


1 Department of Pulmonary Medicine, Rehabilitation Unit, Peelamedu Samanaidu Govindarajulu Hospitals, Coimbatore, Tamil Nadu, India
2 Department of Exercise and Sports Sciences, School of Allied Health Sciences, Manipal University, Manipal, Karnataka, India
3 Department of Cardiothoracic Surgery, Peelamedu Samanaidu Govindarajulu Hospitals, Coimbatore, Tamil Nadu, India
4 Department of Physical Medicine and Rehabilitation, Peelamedu Samanaidu Govindarajulu Hospitals, Coimbatore, Tamil Nadu, India

Correspondence Address:
Dr. Manivel Arumugam
Department of Pulmonary Medicine, Rehabilitation Unit, Peelamedu Samanaidu Govindarajulu Hospitals, Peelamedu, Coimbatore, Tamil Nadu
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/IJAMR.IJAMR_18_17

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Objective: Inclined surfaces or ramps are the common obstacles faced by elderly and cardiopulmonary disabled in accessing public amenities. Ramp walking is one of the most common functional demands to be met by a common man in the industrialized world. To assess the functional (uphill walking) capacity, we need a different functional stress test over the routinely used 6-min walk test (6MWT). Hence, a new 3-min steep ramp walk test (3MRWT) was constructed to meet the demands similar to an uphill walk and to provide more functional stress than routinely used 6MWT. Methodology: The observational, crossover study design was adopted for this study. Fifteen healthy participants (8 males, 7 females) performed both tests in a randomized order with a washout time of 6 h in between the tests. Walking distance to both ramp and ground, heart rate, blood pressure, saturation (SpO2), dyspnea, and fatigue with Borg exertion scale were compared prior and after the two walk tests. Results: The average distances covered in 6MWT were 510.5 ± 55.06 and 440.65 ± 25.08 meters and in 3MRWT were 270.18 ± 30.8, 230.05 ± 15.06 meters for male and female respectively. The difference between 3MRWT and 6MWT distances covered by the participants was statistically significant (t = 0.893). The mean difference between the heart rate, saturation and perceptions were highly significant (P < 0.001). Conclusion: The study results show that 3MRWT is valid over routinely administered 6MWT and may provide greater functional stress (uphill or ramp walk capacity) in a shorter duration in healthy individuals in assessing the maximal functional capacity in a ramp or uphill walking.


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