ESPE2023 Poster Category 1 Bone, Growth Plate and Mineral Metabolism (46 abstracts)
Serum osteocalcin, sclerostin and lipocalin-2 levels in adolescent boys with obesity over 12 week sprint interval training
Marit Salus 1,2 , Vallo Tillmann 3,4 , Liina Remmel 1 , Eve Unt 5,6 , Evelin Mäestu 1 , Ülle Parm 2 , Agnes Mägi 6 , Maie Tali 5,6 & Jaak Jürimäe 1
1Institute of Sports Sciences and Physiotherapy, University of Tartu, Tartu, Estonia. 2Department of Physiotherapy and Environmental Health, Tartu Health Care College, Tartu, Estonia. 3Department of Paediatrics, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia. 4Children’s Clinic of Tartu University Hospital, Tartu, Estonia. 5Department of Sports Medicine and Rehabilitation, Institute of Clinical Medicine, University of Tartu, Tartu, Estonia. 6Sports Medicine and Rehabilitation Clinic, Tartu University Hospital, Tartu, Estonia
Aim: to examine the effects of supervised cycling sprint interval training (SIT) on serum osteocalcin, lipocalin-2 and sclerostin levels, and bone mineral characteristics among obese adolescent boys.
Methods and subjects: untrained adolescent obese boys (n=14) aged 13.4 ± 0.3 were assigned to either a 12-week SIT group (3 sessions/week) or a non-exercising control group (n=14) who continued with their habitual everyday life. Serum osteocalcin, lipocalin-2 and sclerostin concentrations and bone mineral values were assessed before and after intervention.
Results: after 12-week intervention, where 14 boys in both groups ended the study, serum osteokine levels were not changed (p > 0.05) after 12 weeks period between the groups, while whole body bone mineral content and lower limbs bone mineral density increased in SIT group (p < 0.05) with no differences between the groups. Change in body mass index was negatively correlated with the change in osteocalcin (r= -0.57; P= 0.034) and positively with the change in lipocalin-2 levels (r= 0.57; P= 0.035) in SIT group.
Conclusions: supervised 12-week SIT intervention did not change osteocalcin, lipocalin-2 and sclerostin levels, but improved bone mineral characteristics in adolescent boys with obesity.
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