Extended steep ramp test normative values for 19–24-year-old healthy active young adults

Purpose To extend currently available sex and age-specific normative values in children and adolescents for the peak work rate (WR peak ) attained at the steep ramp test (SRT) to healthy active young adults. Methods Healthy male and female participants aged between 19 and 24 years were recruited. Af...

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Bibliographic Details
Published in:European journal of applied physiology 2020-01, Vol.120 (1), p.107-115
Main Authors: Werkman, M. S., Bongers, B. C., Blatter, T., Takken, T., Wittink, H.
Format: Article
Language:English
Subjects:
Age
Biomedical and Life Sciences
Biomedicine
Blood pressure
Body height
Body mass
Children
Females
Heart rate
Human Physiology
Males
Occupational Medicine/Industrial Medicine
Original
Original Article
Physical training
Respiratory function
Sports Medicine
Young adults
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Summary:Purpose To extend currently available sex and age-specific normative values in children and adolescents for the peak work rate (WR peak ) attained at the steep ramp test (SRT) to healthy active young adults. Methods Healthy male and female participants aged between 19 and 24 years were recruited. After screening and anthropometric measurements, participants performed a SRT on a cycle ergometer (increments of 25 W/10 s), monitoring and recording SRT-WR peak , heart rate (HR), and blood pressure (BP) at rest and directly after peak exercise. Results Fifty-seven participants (31 males and 26 females; median age of 21.3 years) volunteered and were tested. Anthropometrics, resting BP and lung function were all within normal ranges. Ninety-three percent of the participants attained a peak HR (HR peak ) > 80% of predicted (mean HR peak 87 ± 5% of predicted). No differences were found in resting and peak exercise variables between females and males, except for absolute SRT-WR peak (350 W [Q1: 306; Q3: 371] and 487 W [Q1: 450; Q3: 517], respectively) and SRT-WR peak normalized for body mass (relative SRT-WR peak ; 5.4 ± 0.5 and 6.2 ± 0.6 W/kg, respectively). Low-to-moderate correlations ( ρ [0.02–0.71]) were observed between SRT-WR peak and anthropometric variables for females and males separately. Extended reference curves (8–24-year-old subjects) for SRT performance show different trends between male and female subjects when modelled against age, body height, and body mass. Conclusions The present study provides sex-, age-, body height-, and body mass-related normative values (presented as reference centiles) for absolute and relative SRT performance throughout childhood and early adulthood.
ISSN:1439-6319
1439-6327
1439-6327
DOI:10.1007/s00421-019-04255-x