The Influence of Body Position on Determining Aerobic Exercise Intensity for Healthy Individuals

• Published in: International journal of environmental research and public health 2021-11, Vol.18 (22), p.11773
• Main Authors: Peters, Rogério de Siqueira, Cruz, Maria do Socorro Luna, Hernández-Mosqueira, Claudio, Martinez-Salazar, Cristian, Barbosa, Fernando Policarpo
• Format: Article
• Language: English
• Subjects: Aerobics; Age; Carbon dioxide; Cardiac stress tests; Electrocardiography; Exercise; Fatigue tests; Fitness equipment; Gases; Heart rate; Oxygen consumption; Physical fitness; Physiology; Sports medicine; Treadmills; Variance analysis; Women
• ISSN: 1660-4601; 1661-7827; 1660-4601
• DOI: 10.3390/ijerph182211773

To verify the influence of the resting heart rate (RHR) measurement on different positions in the calculation of VO2max intensities in young individuals of both sexes. Methods: A cross-sectional study with a correlational design with a sample of 22 men and 11 women, aged 27.8 ± 6.5 years and 29.0 ± 8.6 years, respectively, healthy, active and sedentary, who performed the stress test on a treadmill until fatigue. For the treatment of the data, a repeated measures ANOVA was carried out with Bonferroni’s post hoc test. Results: The comparison of the mean values of baseline heart rate (Bhr) between the groups of women and men showed significant differences (t = 2.329; gl 31; p = 0.027). However, no significant differences were noted for lying (t = 0.057; gl 31; p = 0.95), sitting (t = 0.196 gl 31; p = 0.85) or standing (t = −0.290; gl 31; p = 0.77). But in the analysis of the intensities of the RHR in different positions, the calculations with baseline and lying HR were significantly different (p < 0.05). Conclusion: The determination of aerobic training intensities by RHR method must observe the heart rate measurement at rest in the sitting and/or standing positions minutes before the training session.