An??lise da variabilidade da frequ??ncia card??aca de atletas m??ster de endurance e pot??ncia

Autor: Deus, Lysleine Alves de
Přispěvatelé: Sim??es, Herbert Gustavo, Rosa, Thiago dos Santos
Jazyk: portugalština
Rok vydání: 2019
Předmět:
Zdroj: Biblioteca Digital de Teses e Dissertações da UCB
Universidade Católica de Brasília (UCB)
instacron:UCB
Popis: Submitted by Sara Ribeiro (sara.ribeiro@ucb.br) on 2020-03-31T21:56:21Z No. of bitstreams: 1 LysleineAlvesdeDeusDissertacao2019.pdf: 1169022 bytes, checksum: d326f9968b2735a2f838c04d26710f39 (MD5) Approved for entry into archive by Sara Ribeiro (sara.ribeiro@ucb.br) on 2020-03-31T21:56:42Z (GMT) No. of bitstreams: 1 LysleineAlvesdeDeusDissertacao2019.pdf: 1169022 bytes, checksum: d326f9968b2735a2f838c04d26710f39 (MD5) Made available in DSpace on 2020-03-31T21:56:42Z (GMT). No. of bitstreams: 1 LysleineAlvesdeDeusDissertacao2019.pdf: 1169022 bytes, checksum: d326f9968b2735a2f838c04d26710f39 (MD5) Previous issue date: 2019-02-12 BACKGROUD: Aging is associated with decreased autonomic balance which could be assessed by Heart Rate Variability. Exercise training improves autonomic balance, but there is a lack in the literature regarding the heart rate variability (HRV) of master sprinters and endurance athletes. PURPOSE: The effects of lifelong endurance and sprint training on cardiac autonomic balance were assessed in master athletes and compared with age-matched controls and young untrained controls. METHODS: Participants (n=81) were 8 master sprinters (MS; 51.8??11.1yrs), 8 master endurance athletes (EN, n=8, 53.6??8.6yrs), 17 age-matched untrained (CON, 47.47??6.00yrs) and 48 young controls (YC, 25.40??3.87 yrs). For the acquisition of RR intervals (iRR) (Polar RS800X Heart Rate Monitor??) the participants remained seated for 15-min with the final 10-min being considered for analysis. HRV was measured using Kubios software. A one-way ANOVA with repeated measures was applied. RESULTS: All studied parameters did not differ between MS and EN {Time Domain [HR (bpm) 59.00??6.13 vs. 58.94??12.75], [R-R (ms) 1030.45??107.45 vs. 1068.77??206.17], [SDNN (ms) 57.35??20.07 vs. 80.66??71.07], [RMSSD (ms) 40.88??20.07 vs. 38.93??20.44]; Non-linear domain [SD1 (ms) 28.93??14.20 vs. 27.56??14.46]}, whose demonstrated a reduced HR and elevated mean R-R intervals in comparison to both YC {[HR (bpm) 69.64??9.81]; [R-R (ms) 883.93??124.11]} and age-matched controls {[HR (bpm) 70.06??6.63]; [R-R (ms) 865.11??78.39]}. It was observed a lower HRV for middle-aged CON {[RMSSD (ms) 20.23??5.87], [SDNN (ms) 37.79??10.15] and [SD1 (ms) 14.31??4.15]} compared to YC {[RMSSD (ms) 43.33??26.41], [SDNN (ms) 67.07??28.77] and [SD1 (ms) 30.66??18.69; p
Databáze: OpenAIRE
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