Browsing by Subject "Aerobic capacity"

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    Exercise intensity to maximal aerobic speed, physical activity level and heart rate variability in postmenopausal women
    (Murcia: Servicio de publicaciones de la Universidad de Murcia, 2020) de Ornelas, Felipe; Batista, Danilo Rodrigues; Meneghel, Vlademir; Dias, Wellington Gonçalves; Businari, Guilherme Borsetti; Moreno, Marlene Aparecida; Lopes, Charles Ricardo; Braz, Tiago Volpi
    Physical inactivity is main cause of disease worldwide. Identify the physical exercise preference, resulting in increases adherence and future intention to perform physical activity. The preference of the intensity of exercise questionnaire (PRETIE-Q) is the main tool used to assess preference in physical exercise. Variables as age, body mass index (BMI), usual physical activity level (PAL), maximal oxygen uptake (VO2máx), can influence in PRETIE-Q answers. The purpose of this study was investigate if thereis relation between preference for exercise intensity with maximal aerobic speed (MAS), PAL and heart rate variability (HRV) in postmenopausal women phase. Participated of study 30 subjects who answer PRETIE-Q together with analyses of MAS, PAL and HRV. Preference was large correlated with MAS (r = 0.63), PAL (r = 0.57) and HRVRMSSD(r = 0.52). Together, MAS (40.4%), PAL (10.7%) and HRVRMSSD(6.4%) explained 57.5% of the preference score. This results study allow to health professional, that prescribe physical exercise, understand that subjects with high aerobic capacity, cardiovagal modulation and usual PAL will have preference for high intensity exercise. In consequence, can increase the adherence to systematic practice of physical exercise. Conclude thatpreference of exercise intensity for women in postmenopausal phase is related with aerobic capacity, high HRV and physical activity level.
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    Step test and physical working capacity in female volleyball players: the paradox of better performance in the older athletes
    (Murcia: Servicio de Publicaciones de la Universidad de Murcia, 2016) Nikolaidis, P.T.; Afonso, J.; Knechtle, B.; Clemente-Suarez, V.J.; Torres Luque, Gema
    ABSTRACT: The aim of the present study was to compare two popular submaximal tests of aerobic capacity, the YMCA step test and the physical working capacity at heart rate (HR) 170 bpm test (P170), in competitive female volleyball players. The participants (n = 152, age 12.78-41.67 yrs) were examined for anthropometric characteristics and performed the YMCA step test. Heart rate (HR) was recorded at the end of the test (Stepend) and at the end of the first minute of recovery (Steprec). P170 test was expressed in both absolute (P170,abs, W) and relative values (P170,rel, W.kg-1). In addition, a sub-group (n = 14) was tested again one year later. The YMCA step test correlated largely (Steprec) and very largely (Stepend) with P170,rel (r = –0.58 and r = –0.76, p < 0.001, respectively), and P170,abs (r = –0.54 and r = –0.68, p < 0.001, respectively). No correlation was observed among percentage changes in the tests of aerobic capacity over a year (p>0.05). Age correlated low-to-moderately with all indices of aerobic capacity (0.23 ≤ │r│ ≤ 0.45, p<0.05), i.e. the older the age, the better the aerobic capacity. Based on the findings of the present study, it was concluded that the YMCA step test (especially the Stepend index) and P170 might be used interchangeably by coaches and trainers to monitor aerobic capacity of female volleyball players. The paradoxically increase of aerobic capacity with age should be attributed to the assessment methods which were based on HR and to the decrease of maximal HR with age. Thus, these tests should be used only within a short range of age.