Acute effects of submaximal exercise on respiratory rate and work output among physically inactive young adults
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Título: | Acute effects of submaximal exercise on respiratory rate and work output among physically inactive young adults |
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Autor/es: | Justine, Maria | Haziq, Fuad | Manaf, Haidzir |
Palabras clave: | Body mass index | Exercise | Submaximal intensity | Treadmill | Work output |
Área/s de conocimiento: | Educación Física y Deportiva |
Fecha de publicación: | 2019 |
Editor: | Universidad de Alicante. Área de Educación Física y Deporte |
Cita bibliográfica: | Journal of Human Sport and Exercise. 2020, 15(1): 128-136. doi:10.14198/jhse.2020.151.12 |
Resumen: | Purpose: This experimental study aimed to determine the effects of exercise at submaximal intensity on respiratory rate (RR) and work output (WO) in physically inactive young adults. Method: A total of 90 participants (Mean age = 20.89 ± 1.68 years) was assigned into three groups (15 males and 15 females in each group) according to their body mass index (BMI = kg/m2) (Normal weight, NW = 18.5-24.9, Overweight, OW = 25.0-29.9, Obese, OB = ≥ 30.0, n = 30 each). Participants were instructed to walk or run on a treadmill, with a fixed inclination (8%) but the speed was progressed according to the modified Bruce Treadmill Protocol to reach a submaximal intensity which was determined based on the Karvonen Formula (65-85% maximal heart rate) for 20-min. RR was measured at baseline, and after completing the exercise at 0-, 5-, 10-, 20-, and 30-min. WO was measured immediately after the exercise (0-min). Results: There was a significant difference in RR among the groups (p < 0.05) with NW showed the lowest while OB showed the highest at all measured times. WO was significantly different among the groups (p < 0.05), with OB showed the highest and NW the lowest. Conclusion: Participants with excess body weight may increase their work of breathing and expend more WO due to a higher metabolic demand. Hence, it is suggested that exercise recommendation for physically inactive individuals with excess body weight should be individualized according to their BMI. The exercise prescription should include a longer duration of warming-up and cooling-down and followed by conditioning exercises at a lower intensity. Such strategy may delay fatigue and promote adherence to exercise. |
URI: | https://doi.org/10.14198/jhse.2020.151.12 | http://hdl.handle.net/10045/91088 |
ISSN: | 1988-5202 |
DOI: | 10.14198/jhse.2020.151.12 |
Idioma: | eng |
Tipo: | info:eu-repo/semantics/article |
Derechos: | Licencia Creative Commons Reconocimiento-NoComercial-SinObraDerivada 4.0 |
Revisión científica: | si |
Versión del editor: | https://www.jhse.ua.es/ |
Aparece en las colecciones: | Journal of Human Sport and Exercise - 2020, Vol. 15, No. 1 |
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