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Subjective and objective levels of physical activity and their association with cardiorespiratory fitness in rheumatoid arthritis patients

Overview of attention for article published in Arthritis Research & Therapy, March 2015
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  • In the top 25% of all research outputs scored by Altmetric
  • High Attention Score compared to outputs of the same age (81st percentile)

Mentioned by

14 tweeters


21 Dimensions

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101 Mendeley
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Subjective and objective levels of physical activity and their association with cardiorespiratory fitness in rheumatoid arthritis patients
Published in
Arthritis Research & Therapy, March 2015
DOI 10.1186/s13075-015-0584-7
Pubmed ID

Chen-an Yu, Peter C Rouse, Jet JCS Veldhuijzen Van Zanten, Nikos Ntoumanis, George D Kitas, Joan L Duda, George S Metsios


The aims of the present study were: (a) to examine the agreement between subjective (assessed via the International Physical Activity Questionnaire; IPAQ) and objective (accelerometry; GT3X) physical activity (PA) levels in patients with rheumatoid arthritis (RA), and (b) to evaluate the associations of RA patients' subjective and objective PA to their scores on the maximal oxygen uptake test (VO2max). The participants wore the GT3X for seven days before completing the IPAQ and VO2max test. The Bland-Altman plot was used to illustrate the agreement between the objective and subjective PA data, and the Wilcoxon test was employed to examine the differences. The association between the PA measurement and VO2max test was examined via the correlations and the magnitude was presented by the Steiger's Z value. Sixty-eight RA patients (age = 55 ± 13 years, body mass index: 27.8 ± 5.4 kg/m2, median of disease duration = 5 (2-8) yrs) were recruited. Smaller differences between the subjective and objective measures were found when PA was assessed at the moderate level. Wilcoxon tests revealed that patients reported less time spent engaged in sedentary behaviours (Z = -6.80, P < 0.01) and light PA (Z = -6.89, P < 0.01) and more moderate PA (Z = -6.26, P < 0.01) than was objectively indicated. Significant positive correlations were revealed between VO2max with all PA levels derived from accelerometry (light PA rho = .35, P < .01; moderate PA rho = .34, P = .01; moderate and vigorous PA, (MVPA) rho = .33, P = .01), and a negative association to sedentary time (ST) emerged (rho = -.27, P = .04). IPAQ-reported moderate PA and MVPA positively correlated with maxV02 (rho = .25, P = .01, rho = .27, P = .01, respectively). Differences between the magnitude of correlations between the IPAQ-VO2 max and GT3X-VO2 max were only significant for ST (Z = 3.43, P < .01). Via responses to the IPAQ, RA patients reported that they were less sedentary and engaged in more higher intensity PA than what was objectively assessed. Accelerometry data correlated with VO2max at all PA levels. Only subjective moderate and MPVA correlated with VO2max. Findings suggest that self-reported PA and ST should be interpreted with caution in people with RA and complemented with accelerometry when possible. Trial registration: ClinicalTrials.gov ISRCTN04121489 . Registered 5 September 2012.

Twitter Demographics

The data shown below were collected from the profiles of 14 tweeters who shared this research output. Click here to find out more about how the information was compiled.

Mendeley readers

The data shown below were compiled from readership statistics for 101 Mendeley readers of this research output. Click here to see the associated Mendeley record.

Geographical breakdown

Country Count As %
United Kingdom 2 2%
Spain 2 2%
Unknown 97 96%

Demographic breakdown

Readers by professional status Count As %
Student > Ph. D. Student 25 25%
Student > Bachelor 13 13%
Student > Master 13 13%
Student > Postgraduate 6 6%
Professor 5 5%
Other 20 20%
Unknown 19 19%
Readers by discipline Count As %
Medicine and Dentistry 22 22%
Sports and Recreations 13 13%
Nursing and Health Professions 10 10%
Psychology 9 9%
Biochemistry, Genetics and Molecular Biology 5 5%
Other 16 16%
Unknown 26 26%

Attention Score in Context

This research output has an Altmetric Attention Score of 8. This is our high-level measure of the quality and quantity of online attention that it has received. This Attention Score, as well as the ranking and number of research outputs shown below, was calculated when the research output was last mentioned on 16 November 2015.
All research outputs
of 13,727,342 outputs
Outputs from Arthritis Research & Therapy
of 2,211 outputs
Outputs of similar age
of 216,318 outputs
Outputs of similar age from Arthritis Research & Therapy
of 1 outputs
Altmetric has tracked 13,727,342 research outputs across all sources so far. Compared to these this one has done well and is in the 83rd percentile: it's in the top 25% of all research outputs ever tracked by Altmetric.
So far Altmetric has tracked 2,211 research outputs from this source. They typically receive a little more attention than average, with a mean Attention Score of 6.7. This one has gotten more attention than average, scoring higher than 73% of its peers.
Older research outputs will score higher simply because they've had more time to accumulate mentions. To account for age we can compare this Altmetric Attention Score to the 216,318 tracked outputs that were published within six weeks on either side of this one in any source. This one has done well, scoring higher than 81% of its contemporaries.
We're also able to compare this research output to 1 others from the same source and published within six weeks on either side of this one. This one has scored higher than all of them