Validation of the Rockport Fitness Walking Test for adults with mental retardation

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Abstract

ABSTRACT

This study determined if the generalized equations created for the Rockport Fitness Walking Test were a valid estimation of cardiorespiratory fitness for adults with mental retardation (MR). Subjects included 25 males and females (JOURNAL/mespex/04.02/00005768-199401000-00016/ENTITY_OV0398/v/2017-07-20T222405Z/r/image-png age = 33.3 ± 7.4 yr) with MR. A maximal treadmill test was administered (JOURNAL/mespex/04.02/00005768-199401000-00016/ENTITY_OV0398/v/2017-07-20T222405Z/r/image-pngJOURNAL/mespex/04.02/00005768-199401000-00019/ENTITY_OV0312/v/2017-07-20T222405Z/r/image-pngO2peak = 29.5 ± 7.2 ml·kg−1·min−1; 2.2 ± 0.62 1·min−1). Subjects' age, weight, sex, walk time, and immediate post-HR were used in the generalized equations for predicting JOURNAL/mespex/04.02/00005768-199401000-00019/ENTITY_OV0312/v/2017-07-20T222405Z/r/image-pngO2peak (JOURNAL/mespex/04.02/00005768-199401000-00016/ENTITY_OV0398/v/2017-07-20T222405Z/r/image-pngJOURNAL/mespex/04.02/00005768-199401000-00019/ENTITY_OV0312/v/2017-07-20T222405Z/r/image-pngO2peak = 36.5 ± 7.6 ml·kg−1·min−1 and 2.7 ± 0.66 1·min−1). Significant correlations (P < 0.01) were obtained between the measured and predicted peak JOURNAL/mespex/04.02/00005768-199401000-00019/ENTITY_OV0312/v/2017-07-20T222405Z/r/image-pngO2 levels. However, significant and consistent differences were also observed between the measured and predicted JOURNAL/mespex/04.02/00005768-199401000-00019/ENTITY_OV0312/v/2017-07-20T222405Z/r/image-pngO2peak values (P < 0.02). Only 28% (1·min−1) and 36% (ml·kg−1min−1) of the subjects' measured JOURNAL/mespex/04.02/00005768-199401000-00019/ENTITY_OV0312/v/2017-07-20T222405Z/r/image-pngO2peak fell within the prespecified value of the predicted JOURNAL/mespex/04.02/00005768-199401000-00019/ENTITY_OV0312/v/2017-07-20T222405Z/r/image-pngO2peak, thus indicating that the prediction equations overestimated the JOURNAL/mespex/04.02/00005768-199401000-00019/ENTITY_OV0312/v/2017-07-20T222405Z/r/image-pngO2peak and cardiovascular fitness levels of adults with MR.

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