Evidence map›Paper›PMID 32388589›Full record

ArticleOsteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA2020

Physical activity, sedentary time, and longitudinal bone strength in adolescent girls.

V L Bland, J W Bea, D J Roe, V R Lee, R M Blew, S B Going

Abstract read
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In one paragraph

Article in Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 2 pooled it
1.4field-weighted citation impact, top 17% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

9 citing papers in PubMed, 2 syntheses or guidelines pooled it, 14 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

V L BlandDepartment of Nutritional Sciences, University of Arizona, 1177 E 4th St, Tucson, AZ, 85721, USA. victoriabland@email.arizona.edu.ORCID https://orcid.org/0000-0003-1285-1884
J W BeaDepartment of Nutritional Sciences, University of Arizona, 1177 E 4th St, Tucson, AZ, 85721, USA.ORCID https://orcid.org/0000-0002-9868-1574
D J RoeUniversity of Arizona Cancer Center, 3838 N Campbell Ave, Tucson, AZ, 85719, USA.ORCID https://orcid.org/0000-0001-6989-6579
V R LeeDepartment of Nutritional Sciences, University of Arizona, 1177 E 4th St, Tucson, AZ, 85721, USA.ORCID https://orcid.org/0000-0002-6981-3021
R M BlewDepartment of Nutritional Sciences, University of Arizona, 1177 E 4th St, Tucson, AZ, 85721, USA.ORCID https://orcid.org/0000-0002-4040-4056
S B GoingDepartment of Nutritional Sciences, University of Arizona, 1177 E 4th St, Tucson, AZ, 85721, USA.ORCID https://orcid.org/0000-0003-1606-6218
University of Arizona · US

Funding

Obesity and bone development in young girlsR01HD074565 · NICHD · UNIVERSITY OF ARIZONA · PI GOING, SCOTT B · 2013 to 2017
$2.6M
National Institute of Child Health and Human Development HD074565
6 · The paper itself

Abstract

The association between baseline physical activity and sedentary time with 2-year longitudinal bone strength was evaluated. The effect of physical activity on bone depended on maturity status. Sedentary time did not negatively impact bone outcomes, regardless of maturity. Maturity should be considered when developing exercise interventions to improve bone outcomes.

introductionPhysical activity during adolescence is important to obtain peak bone mass; however, adolescents are increasingly sedentary, potentially increasing risk for osteoporosis later in life. The aim of this study was to assess the association of physical activity and sedentary time with 2-year longitudinal bone outcomes in adolescent females (69% Hispanic/31% non-Hispanic).

methodsBone strength was assessed at the 66% tibia, 20% femur, and 66% radius of 9- to 12-year-old girls (n = 131) using peripheral quantitative computed tomography at baseline and 2-year follow-up. Physical activity and sedentary time were assessed via accelerometry. Linear regression analyses were used to assess whether baseline vigorous physical activity (VPA), moderate physical activity (MPA), light physical activity (LPA), or sedentary time predict longitudinal bone outcomes, adjusting for relevant confounders.

resultsSignificant interactions were found between maturity offset and physical activity. In weight-bearing bones, significant interactions were primarily identified between VPA and maturity offset. Interactions indicated that VPA was associated with favorable bone outcomes at the tibia and femur in girls further past the age of PHV. However, this favorable effect was not observed in girls closer to the age of PHV. At the radius, interactions were primarily observed between LPA and maturity offset. Again, LPA was more beneficial for girls further past the age of PHV. Sedentary time did not significantly influence bone outcomes.

conclusionThe effects of physical activity on bone may be dependent on maturity. Therefore, physical activity interventions, with attention to maturity status, may be required to optimize bone strength in girls.

Indexed as

ExerciseSedentary BehaviorAccelerometryAdolescentBone and BonesBone DensityChildFemaleHumansAccelerometryAdolescenceFemalePeripheral quantitative computed tomographyPhysical activityPhysical inactivity

Identifiers

PMID32388589
OpenAlexW3020822420

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.