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Fitness Mediates Activity and Sedentary Patterns Associations with Adiposity in Youth
| Content Provider | Scilit |
|---|---|
| Author | Santos, Diana A. Magalhães, João P. Júdice, Pedro Correia, Inês Minderico, Cláudia S. Ekelund, Ulf Sardinha, Luis |
| Copyright Year | 2019 |
| Description | Journal: Medicine & Science In Sports & Exercise We aimed to examine the cross-sectional associations of patterns of sedentary time (ST) and moderate-to-vigorous physical activity (MVPA) with total fat mass index (FMI) and abdominal fat mass index (FMIabd) in children, and additionally, to analyze if cardiorespiratory fitness (CRF) mediated these associations. FMI and FMIabd were assessed with DXA in 333 participants (172 girls) aged 9-11 years. MVPA, ST, breaks in sedentary time per sedentary hour (BST/ST) and the number of daily sedentary bouts with various lengths (1-4, 5-9, 10-14, and ≥15 minutes) were assessed with accelerometry and CRF using a maximal cycle test. Hayes’ PROCESS macro for SPSS was used for mediation analysis. The number of shorter sedentary bouts (1-4 minutes) was inversely associated with FMI (β =-0.108), whereas longer sedentary bouts (5-9 minutes, β=0.169; 10-14 minutes, β=0.193; ≥15 minutes, β=0.377) had a positive association, independent of MVPA (p0.05). CRF was inversely related to total and abdominal adiposity, and a large portion (40.9-65.7%) of the associations of MVPA and sedentary bouts with both FMI and FMIabd were mediated by CRF. Time in MVPA and accumulating ST in shorter sedentary bouts is inversely related to adiposity. However, these associations may be mediated by CRF. Emphasis should be given to programs that target increases in MVPA, which may influence CRF while reducing sedentary recreational behaviors. |
| Related Links | https://nih.brage.unit.no/nih-xmlui/bitstream/11250/2647629/1/Ekelund+MSSE+2019.pdf |
| Ending Page | 329 |
| Page Count | 7 |
| Starting Page | 323 |
| ISSN | 01959131 |
| e-ISSN | 15300315 |
| DOI | 10.1249/mss.0000000000001785 |
| Journal | Medicine & Science In Sports & Exercise |
| Issue Number | 2 |
| Volume Number | 51 |
| Language | English |
| Publisher | Ovid Technologies (Wolters Kluwer Health) |
| Publisher Date | 2019-02-01 |
| Access Restriction | Open |
| Subject Keyword | Journal: Medicine & Science In Sports & Exercise Sport Sciences Patterns Associations Associations May Be Mediated |
| Content Type | Text |
| Resource Type | Article |
| Subject | Orthopedics and Sports Medicine Physical Therapy, Sports Therapy and Rehabilitation Sports Science |
