Construct validation of the Leisure Time Physical Activity Questionnaire for people with SCI (LTPAQ-SCI)

Kathleen A Martin Ginis, Joan Ubeda-Colomer, Abdullah Alrashidi, Tom E. Nightingale, Jason Au, Katharine Currie, Michele Hubli, Andrei Krassioukov

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Abstract

Study design Cross-sectional construct validation study. Objectives To test the construct validity of the Leisure Time Physical Activity Questionnaire for People with Spinal Cord Injury (LTPAQ-SCI) by examining associations between the scale responses and cardiorespiratory fitness (CRF) in a sample of adults living with spinal cord injury (SCI). Setting Three university-based laboratories in Canada. Methods Participants were 39 adults (74% male; M age: 42 ± 11 years) with SCI who completed the LTPAQ-SCI and a graded exercise test to volitional exhaustion using an arm-crank ergometer. One-tailed Pearson’s correlation coefficients were computed to examine the association between the LTPAQ-SCI measures of mild-, moderate-, heavy-intensity and total minutes per week of LTPA and CRF (peak volume of oxygen consumption [V̇O2peak] and peak power output [POpeak]). Results Minutes per week of mild-, moderate- and heavy-intensity LTPA and total LTPA were all positively correlated with V̇O2peak. The correlation between minutes per week of mild intensity LTPA and V̇O2peak was small-medium (r = 0.231, p = 0.079) while all other correlations were medium-large (rs ranged from 0.276 to 0.443, ps < 0.05). Correlations between the LTPAQ-SCI variables and POpeak were also positive but small (rs ranged from 0.087 to 0.193, ps > 0.05), except for a medium-sized correlation between heavy-intensity LTPA and POpeak (r = 0.294, p = 0.035). Conclusions People with SCI who report higher levels of LTPA on the LTPAQ-SCI also demonstrate greater levels of CRF, with stronger associations between moderate- and heavy-intensity LTPA and CRF than between mild-intensity LTPA and CRF. These results provide further support for the construct validity of the LTPAQ-SCI as a measure of LTPA among people with SCI.
Original languageEnglish
JournalSpinal Cord
Early online date10 Oct 2020
DOIs
Publication statusE-pub ahead of print - 10 Oct 2020

ASJC Scopus subject areas

  • Neurology
  • Clinical Neurology

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