This study aimed to verify habitual smoking effects on cardiopulmonary function in taekwondo athletes. Subjects were university taekwondo athletes aged 20-24 years in nonsmoker (n= 9) and smoker (n= 6) groups. Subjects underwent an exercise examination for their ventilation threshold, minute ventilation, oxygen uptake, maximum volume of minute oxygen consumption, heart rate, and oxygen pulse du...

We generalize the wavelet transform modulus maxima approach in order to analyze positive and negative changes separately and show different singularity spectra depending on the direction of changes in (i) human heartbeat interval data during sympathetic blockade, (ii) time series of daytime human physical activity of healthy individuals (but not of patients with debilitating fatigue), and (iii)...

Both convective oxygen (O 2 ) transport to, and diffusive within, skeletal muscle are markedly diminished in patients with COPD. However, it is unknown how these determinants of peak O uptake ( V ′ mO respond to exercise training Therefore, the purpose this study was assess plasticity Adaptations 8 weeks single-leg knee-extensor were measured eight severe COPD (mean± sem forced expiratory volum...

Twenty girls, aged 11-15 years, with adolescent idiopathic scoliosis were studied before spinal fusion was performed. Each underwent a range of lung function tests and a standardised progressive exercise test on a bicycle ergometer. The resting lung function tests showed reduced peak flow rates, lung volumes, and maximum voluntary ventilation. The maximum oxygen uptake was slightly diminished b...

OBJECTIVE To analyze the influence of previous aerobic exercise on cardiovascular responses during resistance exercise. METHODS This is a crossover observational study. The sample included 19 normotensive men aged between 19 and 39 years. Subjects performed two experimental sessions in random order: resistance exercise (R: three sets of knee extension exercises with 40% of one repetition maxi...

This study compared the acute effect of strength, plyometric, and complex exercises (combined strength and plyometric exercise) in the countermovement jump (CMJ) and frequency speed of kick test (FSKT) and attempted to establish the best rest interval to maximize performance in the CMJ, number of kicks, and impact generated during FSKT. Eleven taekwondo athletes (mean ± SD; age: 20.3 ± 5.2 year...

Results Our results shows that these patients end expiratory volume (EEV) increased by 14 +/0.4 % compared to quiet breathing during maximum exercise before surgery (P < 0.002). This dynamic hyperinflation or air trapping during exercise was corrected after surgery. Postoperatively their EEV decreased during maximum exercise by 2.3 +/1.4 % at 5 months respectively (P 0.001). The end inspiratory...

OBJECTIVE The incidence of pulmonary embolism (PE) and leg deep vein thrombosis (DVT) has increased in recent years in association with aging and an increase in the number of bedridden individuals. We developed an active in-bed leg exercise apparatus labeled the Leg Exercise Apparatus (LEX) for DVT prevention. We compared the effect of leg exercises performed using the LEX to conventional activ...

Background & Objectives:Endocrine hormones, through their anabolic or catabolic function, contribute in body homeostasis. They can be used to assess the physical performance in athletes. This study was performed to determine the resistance training (RT) influences on serum cortisol and dehydroepiandrosterone in trained young females. Materials & Methods:The study population c...