| Title |
Sedentary time has a negative influence on bone mineral parameters in peripubertal boys: a 1-year prospective study
|
|---|---|
| Published in |
Journal of Bone and Mineral Metabolism, February 2014
|
| DOI | 10.1007/s00774-013-0556-4 |
| Pubmed ID | |
| Authors |
Artūrs Ivuškāns, Jarek Mäestu, Toivo Jürimäe, Evelin Lätt, Priit Purge, Meeli Saar, Katre Maasalu, Jaak Jürimäe |
| Abstract |
One of the key determinants of adult skeletal health is the maximization of bone mass during the growth period. Physical activity (PA) in combination with lean mass and fat mass contribute to a great extent to bone mineral accrual; however, PA changes significantly during puberty. The aim of the present study was to examine PA exposure relative to bone mass acquisition during a longer observation period. Daily PA was measured with 7-day accelerometry and bone mineral parameters by DXA in 11- to 13-year-old peripubertal boys (n = 169). Similar testing was done after 1 calendar year. Changes in sedentary time were negatively related to changes in whole-body bone mineral density (BMD), lumbar spine bone mineral content (BMC), lumbar spine bone area (BA), femoral neck (FN) BMD, and FN BMC (r > -0.157; p < 0.05). Sedentary time emerged as the main PA level in predicting changes in FN BMC (p = 0.027) and in combination with vigorous PA predicting changes in FN BMD (p < 0.024). In addition to the effect of body composition on the skeleton, increase in sedentary time emerged as one main physical activity predictor (in addition to vigorous PA) of bone mineral acquisition during a 12-month period in peripubertal boys. |
X Demographics
The data shown below were collected from the profiles of 2 X users who shared this research output. Click here to find out more about how the information was compiled.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| Unknown | 2 | 100% |
Demographic breakdown
| Type | Count | As % |
|---|---|---|
| Science communicators (journalists, bloggers, editors) | 1 | 50% |
| Members of the public | 1 | 50% |
Mendeley readers
The data shown below were compiled from readership statistics for 55 Mendeley readers of this research output. Click here to see the associated Mendeley record.
Geographical breakdown
| Country | Count | As % |
|---|---|---|
| United Kingdom | 1 | 2% |
| Portugal | 1 | 2% |
| Ireland | 1 | 2% |
| Unknown | 52 | 95% |
Demographic breakdown
| Readers by professional status | Count | As % |
|---|---|---|
| Student > Ph. D. Student | 13 | 24% |
| Researcher | 9 | 16% |
| Student > Master | 6 | 11% |
| Student > Bachelor | 3 | 5% |
| Lecturer | 2 | 4% |
| Other | 8 | 15% |
| Unknown | 14 | 25% |
| Readers by discipline | Count | As % |
|---|---|---|
| Sports and Recreations | 12 | 22% |
| Medicine and Dentistry | 11 | 20% |
| Nursing and Health Professions | 3 | 5% |
| Social Sciences | 3 | 5% |
| Computer Science | 2 | 4% |
| Other | 5 | 9% |
| Unknown | 19 | 35% |
Attention Score in Context
This research output has an Altmetric Attention Score of 2. 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 12 January 2015.
All research outputs
#15,521,679
of 23,842,189 outputs
Outputs from Journal of Bone and Mineral Metabolism
#343
of 787 outputs
Outputs of similar age
#131,267
of 226,320 outputs
Outputs of similar age from Journal of Bone and Mineral Metabolism
#5
of 22 outputs
Altmetric has tracked 23,842,189 research outputs across all sources so far. This one is in the 32nd percentile – i.e., 32% of other outputs scored the same or lower than it.
So far Altmetric has tracked 787 research outputs from this source. They receive a mean Attention Score of 2.7. This one has gotten more attention than average, scoring higher than 53% 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 226,320 tracked outputs that were published within six weeks on either side of this one in any source. This one is in the 39th percentile – i.e., 39% of its contemporaries scored the same or lower than it.
We're also able to compare this research output to 22 others from the same source and published within six weeks on either side of this one. This one has gotten more attention than average, scoring higher than 68% of its contemporaries.