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The PWC170: comparison of different stage lengths in 11–16 year olds
Abstract
It is unknown how the estimation of aerobic fitness in children and adolescents compares among physical working capacity (PWC) protocols with different stage lengths. The purpose of this study was twofold: (1) compare PWC tests with 2-, 3-, and 6-min stage lengths in youth, and (2) examine the relationship between PWC at a heart rate (HR) of 170 beats min(-1) (PWC170) and peak oxygen consumption (VO(2)peak). Fifty youth (31 m, 19 f), aged 11-16 years participated. Each participant visited the laboratory twice and performed three PWC tests (2-, 3-, 6-min stages) on a cycle ergometer. Tests usually consisted of three stages of increasing loads with the goal of reaching HR ≥ 165 beats min(-1). Individual regression lines were created to predict workload at HR = 170 beats ∙ min(-1) for each test. Participants completed two VO(2peak) tests, both running and cycling. Repeated measures ANOVA was used to compare PWC170 values. Pearson correlation was used to assess the relationships between VO(2peak) and power output for different PWC170 stage lengths. The three PWC170 protocols differ significantly; therefore, it is not advisable to directly compare results from different protocols. Furthermore, PWC170 showed moderate associations with VO(2peak), with the 2-min protocol showing the best correlation.
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Exaggerated exercise blood pressure during submaximal exercise seems to identify individuals with blood pressure-related risk undetected by standard in-office resting blood pressure measurement, including underlying or masked hypertension.
“Perhaps of even greater clinical relevance, EEBP during submaximal exercise seems to identify those with BP-related risk gone undetected by standard in-office measurement of BP at rest, including underlying or masked hypertension (17 -20,59).”
From Cardiorespiratory Fitness, Workload, and the Blood Pressure Response to Exercise Testing (2022) · cites this paper as [59]
Exercise testing protocols that involve exercising at steady-state intensities within target heart rate zones (e.g., PWC170) do not allow interpretation of the exercise blood pressure response free from the influence of cardiorespiratory (and muscular) fitness.
“Moreover, exercise testing protocols that involve exercising at ' steady-state ' intensities within target heart rate zones ( e.g. , the physical work capacity; PWC170) (60) should be avoided if interpretation of the exercise BP response free from the influence of cardiorespiratory (and muscular) fitness is desired.”
From Cardiorespiratory Fitness, Workload, and the Blood Pressure Response to Exercise Testing (2022) · cites this paper as [60]
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Research works printed but not linked: 27
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Cardiorespiratory Fitness, Workload, and the Blood Pressure Response to Exercise Testing
Schultz, M. G., La Gerche, A., & Sharman, J. E. (2022) · Exercise and Sport Sciences Reviews · doi:10.1249/jes.0000000000000276 · Cited by 36
“, the physical work capacity; PWC170) (60) should be avoided if interpretation of the exercise BP response free from the influence of cardiorespiratory (and muscular) fitness is desired.”
BackgroundHuang, Z., Fonseca, R., Sharman, J. E., Park, C., Chaturvedi, N., Howe, L. D., Hughes, A. D., & Schultz, M. G. (2020) · Scandinavian Journal of Medicine & Science in Sports · doi:10.1111/sms.13645 · Cited by 13
Metadata
- Authors
- Bland, J., Pfeiffer, K., & Eisenmann, J. C.
- Affiliations
- Michigan State University (US)
- Corresponding author
- Bland, Justin
- ORCID
- Pfeiffer, Karin
- Venue
- European Journal of Applied Physiology
- Published
- 2011-09-22
- Volume
- 112
- Issue
- 5
- Pages
- 1955-1961
- ISSN
- 0020-9376 (ISSN-L)
- 1439-6319
- 1439-6327
- OpenAlex
- W2032819546
- Cited by
- 39
- References
- 0
- Citations by year
- 2025: 1 · 2023: 3 · 2022: 2 · 2021: 7 · 2020: 5 · 2019: 3 · 2018: 3 · 2017: 2 · 2015: 4 · 2014: 7 · 2013: 2
- FWCI
- 7.69
- Type
- journal article
- Language
- en
- Open access
- closed
- Licence
- www.springer.com/tdm (tdm)
- Locations
- European Journal of Applied Physiology (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Spencer Foundation
- Topics
- Health Sciences › Medicine › Physiology (medical) › Cardiovascular and exercise physiology
- Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
- Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Physical Activity and Health
- Keywords
- physical work capacity, PWC170, stage length, cardiorespiratory fitness, children and adolescents, peak oxygen uptake, heart rate, cycle ergometer, test protocol comparison, output power
- MeSH terms
- Adolescent, Anthropometry, Child, Exercise Test, Female, Heart Rate, Humans, Male, Oxygen Consumption, Physical Endurance, Physical Fitness, Running, Exercise
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