Intensity level in crosstraining sessions in obese women: a real-world study
DOI:
https://doi.org/10.47197/retos.v58.102089Keywords:
Heart Rate, Aortic Pressures, High-Intensity Interval Training, Sport, Obesity, CrosstrainingAbstract
Objective: The objectives were to measure psychophysiological responses during crosstraining sessions in obese women, focusing on heart rate (HR), blood pressure (BP), caloric expenditure, and perceived effort (RPE). Additionally, it examined the relationship between caloric expenditure and effort intensity. Methods: This real-world observational study involved ten obese women (average age: 31.5 ± 6.2 years, BMI: 34.2 ± 3.7 kg/m², crosstraining experience: 5.3 ± 3.4 months). Participants underwent three individual crosstraining sessions. Each session's training type and duration were recorded. BP was measured before and after, along with HR at rest, average HR, peak HR, and RPE post-workout. Internal load and caloric expenditure were calculated. Results: Among 30 observed sessions, there were no significant differences in training duration by type. Caloric expenditure averaged 272.3 ± 76 kcal. Systolic BP increased significantly (from 129 ± 8 mmHg to 160 ± 16.5 mmHg), as did diastolic BP (from 90.3 ± 6.7 mmHg to 113.6 ± 14.9 mmHg, p < 0.001). Mean HR was 136.9 ± 14.8 bpm (73.6 ± 7.3% of HRmax), and peak HR reached 181.9 ± 12.1 bpm (97.8 ± 6.1% of HRmax). Participants spent more time at or above 80% of predicted HRmax. Mean RPE was 5.7 ± 2.2 a.u., significantly correlating with exercise time above ≥90% of HRmax (r = 0.37; p = 0.046, effect size = 0.39). Conclusions: Crosstraining sessions in obese women raised BP, induced high caloric expenditure, and imposed significant cardiorespiratory demands, classifying these sessions as high-intensity. This intensity closely correlates with energy expenditure.
Keywords: Heart Rate; Aortic Pressures; High-Intensity Interval Training; Sport; Obesity; Crosstraining.
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