Freqüência cardíaca máxima em idosas brasileiras: uma comparação entre valores medidos e previstos
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OBJECTIVE: This study sought to compare maximum heart rate (HRmax) values measured during a graded exercise test (GXT) with those calculated from prediction equations in Brazilian elderly women. METHODS: A treadmill maximal graded exercise test in accordance with the modified Bruce protocol was used to obtain reference values for maximum heart rate (HRmax) in 93 elderly women (mean age 67.1 +/- 5.16). Measured values were compared with those estimated from the "220-age" and Tanaka et al formulas using repeated-measures ANOVA. Correlation and agreement between measured and estimated values were tested. Also evaluated was the correlation between measured HRmax and volunteers age. RESULTS: Results were as follows: 1) mean HRmax reached during GXT was 145.5 +/- 12,5 beats per minute (bpm); 2) both the "220-age" and Tanaka et al (2001) equations significantly overestimated (p < 0.001) HRmax by a mean difference of 7.4 and 15.5 bpm, respectively; 3) age was significantly (p < 0,001) and inversely related to measured HRmax. CONCLUSION: Based on these results, it can be concluded that both prediction equations significantly overestimated HRmax measured during maximal GXT in Brazilian elderly women, a finding that may have important implications when prescribing exercise intensity for this population. In addition, HRmax was inversely related to the volunteers age, suggesting that the chronotropic reserve continues to decline after age 60.
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Currently, exercise intensity cannot be accurately predicted by specific formulas.
“currently, exercise intensity cannot be accurately predicted by specific formulas”
From Dose-Response Matters! - A Perspective on the Exercise Prescription in Exercise-Cognition Research (2019) · cites this paper as Silva et al., 2007
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Dose-Response Matters! - A Perspective on the Exercise Prescription in Exercise-Cognition Research
Herold, F., Müller, P., Gronwald, T., & Müller, N. G. (2019) · Frontiers in Psychology · doi:10.3389/fpsyg.2019.02338 · Cited by 196 · see citing works
- Authors
- Silva, V. A. P. D., Bottaro, M., Justino, M. A., Ribeiro, M. M., Lima, R. M., & Oliveira, R. J. D.
- Affiliations
- Universidade de São Paulo (BR)
- Universidade Católica de Brasília (BR)
- Venue
- Arquivos Brasileiros de Cardiologia
- Publisher
- FapUNIFESP (SciELO)
- Published
- 2007-03
- Volume
- 88
- Issue
- 3
- Pages
- 314-20
- ISSN
- 0066-782X (ISSN-L)
- OpenAlex
- W1984306434
- Cited by
- 29
- References
- 36
- Citations by year
- 2020: 2 · 2019: 1 · 2018: 5 · 2015: 4 · 2014: 1 · 2013: 2 · 2012: 3
- FWCI
- 9.21
- Type
- journal article
- Language
- en
- Open access
- diamond
- doi.org
- Licence
- cc-by-nc
- Locations
- Arquivos Brasileiros de Cardiologia (publishedVersion, cc-by-nc)
- PubMed (publishedVersion)
- Portuguese National Funding Agency for Science, Research and Technology (RCAAP Project by FCT) (publishedVersion, other-oa)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (publishedVersion, other-oa)
- LA Referencia (Red Federada de Repositorios Institucionales de Publicaciones Científicas) (submittedVersion, cc-by-nc-sa)
- Americanae (AECID Library) (submittedVersion, other-oa)
- Americanae (AECID Library) (submittedVersion, cc-by-nc)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Topics
- Health Sciences › Medicine › Complementary and alternative medicine › Cardiovascular and exercise physiology
- Health Sciences › Medicine › Physiology › Physical Activity and Health
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
- Keywords
- maximal heart rate, heart rate prediction equations, older women, incremental exercise test, Tanaka formula, chronotropic reserve, exercise intensity prescription
- MeSH terms
- Age Factors, Aged, Aged, 80 and over, Aging, Brazil, Epidemiologic Methods, Exercise Test, Physical Exertion, Female, Heart Rate, Humans, Middle Aged
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