| Autor: |
Arias-Tellez MJ; Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), Granada,Spain.; Department of Nutrition, Faculty of Medicine, University of Chile, Santiago,Chile., Acosta FM; Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), Granada,Spain.; Turku PET Centre, University of Turku, Turku,Finland.; Turku PET Centre, Turku University Hospital, Turku,Finland.; InFLAMES Research Flagship Center, University of Turku, Turku,Finland.; MediCity/PET Preclinical Laboratory, University of Turku, Turku PET Centre, Turku,Finland., Merchan-Ramirez E; Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), Granada,Spain., Martínez-Téllez B; Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), Granada,Spain.; Department of Education, Faculty of Education Sciences and SPORT Research Group (CTS-1024), CERNEP Research Center, University of Almería, Almería,Spain.; Department of Medicine, Division of Endocrinology and Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden,The Netherlands.; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada,Spain., Delgado GS; Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), Granada,Spain.; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada,Spain.; Department of Medicine, Division of Endocrinology, Université de Sherbrooke, Sherbrooke, QC,Canada., Llamas-Elvira JM; Nuclear Medicine Services, 'Virgen de las Nieves' University Hospital, Granada,Spain.; Instituto de Investigación Biosanitaria, ibs.Granada, Granada,Spain., Ruiz JR; Department of Physical Education and Sports, Faculty of Sports Science, Sport and Health University Research Institute (iMUDS), Granada,Spain.; CIBER de Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Granada,Spain.; Instituto de Investigación Biosanitaria, ibs.Granada, Granada,Spain. |
| Abstrakt: |
Neck adipose tissue (NAT) accumulation and neck circumference are independent predictors of cardiometabolic risk (CMR) and low-grade chronic inflammation in young adults. The present study examines whether a 24-week concurrent exercise intervention can reduce NAT volume and neck circumference in young adults, and whether any changes in these variables are related to changes in body composition, CMR, and the inflammatory profile. Seventy-four participants (51 women, age 22 ± 2 years) were included in the main analyses, after being randomly assigned to either a (a) control (n = 34), (b) moderate-intensity exercise (n = 19), or (c) vigorous-intensity exercise (n = 21) group. Participants in the exercise groups trained 3-4 days/week (endurance + resistance exercise training). NAT volume and NAT distribution across different depots were estimated using computed tomography before and after the intervention. Anthropometric variables, body composition (determined by dual-energy X-ray absorptiometry), and CMR/inflammatory markers were also recorded. The exercise intervention did not reduce the total NAT volume, nor was NAT distribution affected (p > .05). However, it did reduce neck circumference in the vigorous-intensity exercise group compared with the moderate-intensity exercise and control groups (by 0.8 and 1 cm, respectively, p ≤ .05). Changes in total NAT and neck circumference were positively, albeit weakly, related (adj. R2: .05-.21, all p ≤ .05) to changes in body weight and adiposity, leptin (only total NAT), and CMR (only neck circumference). Altogether 24 weeks of concurrent exercise does not appear to reduce NAT accumulation in young adults, but may slightly reduce neck circumference in those who partake in vigorous exercise. |
