A high-intensity jump-based aquatic exercise program improves bone mineral density and functional fitness in postmenopausal women

Antonio Michel Aboarrage Junior, Caue La Escala Teixeira, Rodrigo Nolasco dos Santos, Alexandre Fernandes Machado, Alexandre Lopes Evangelista, Roberta Luksevicius Rica, Angelica Castilho Alonso, José Ailton Barroso, Andrey Jorge Serra, Julien Baker, Danilo Sales Bocalini

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Abstract

The aim of this study was to verify the effects of a high-intensity jump-based aquatic exercise program (HIIAE) on bone mass and functional fitness of postmenopausal women. Methods: We randomly assigned 20 women (65 ± 7 years) into two groups: Training (T, n=12) and Untrained (Un, n=8). Only the T group was submitted to 24 weeks of a HIIAE program, where each session lasted for 30 minutes. The following parameters were assessed before and 6 months following the intervention: bone and physical fitness; lumbar spine (LS) , total femur (TF) and whole body (WB) bone mineral density (BMD); as well as agility (Timed up-and-go, TUG), and leg strength (chair stand test, CS) Results: We observed a significant increase (p<0,01) in LS, (Un: -0.88 ± 3.55, T: 3.71 ± 3.68; %), TF (Un: -1.38 ± 17.76, T: 6.52 ± 2.71; %) and WB (Un: 2.09 ± 3.17, T: 3.23 ± 4.18) BMD in the T group. Regarding functional fitness, the T group showed improvements in both TUG (before: 6.86 ± 1.24 versus after: 6.22 ± 1.13 seconds, p< 0.05) and CS (before: 16 ± 4 versus after: 19 ± 5 repetitions, p> 0.05) tests when compared to the U group’s TUG (Before: 5 ± 1, after: 6 ± 1 seconds; p< 0.05) and CS (Before: 20 ± 2, After: 19 ± 2 repetitions; p> 0.05) scores. Conclusion: Our data suggest that a high-intensity, jump-based interval aquatic exercise program is able to improve bone mineral density and functional fitness parameters in postmenopausal women.
Original languageEnglish
JournalRejuvenation Research
Volume21
Issue number6
Early online date11 Jun 2018
DOIs
Publication statusE-pub ahead of print - 11 Jun 2018

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