Study of Physical Activity and Heart Rate In National Badminton Players

Abstract

Background: During most COPD exacerbations, patients continue to live in the community but there is little information on changes in activity during exacerbations due to the difficulties of obtaining recent, prospective baseline data. Methods: Patients recorded on daily diary cards any worsening in respiratory symptoms, peak expiratory flow (PEF) and the number of steps taken per day measured with a Yamax Digi-walker pedometer. Exacerbations were defined by increased respiratory symptoms and the number of exacerbations experienced in the 12 months preceding the recording of daily step count used to divide patients into frequent (> = 2/year) or infrequent exacerbators.

Comparison of Energy Contributions and Workloads in Male and Female Badminton Players During Games Versus Repetitive Practices

“…These bouts involve multiple accelerations, decelerations, CoD, and jumps, which can raise one's HR to 95% of its maximum level (HRmax) (Gawin et al, 2015;Laffaye et al, 2015;Abdullahi and Coetzee, 2017). However, the workloads and average intensity are not very high over the entire duration of a match due to the occurrence of low-intensity intervals between bouts, which is characterized by 72.6-74.8%˙VO 2 max, 70-85% HRmax, and 1.98-4.6 mM blood lactate concentration (Majumdar et al, 1997;Cabello and Gonzalez, 2003;Faude et al, 2007;Sung, 2016).…”