Swimming critical velocity is defined as the maximum velocity that could be maintained during a long period of time without exhaustion, being accepted as a valid parameter to assess aerobic capacity. Our purpose was to observe the patterns of the stroking parameters during a typical aerobic capacity training set conducted at critical velocity. Thirtysix juvenile swimmers performed front crawl 2...

Rational planning of thermal power capacity is one of the main measures to reduce emissions. According to air pollution control plan, different environmental capacity regions provide different constraints to the scale of thermal power plants. With the development of electric market, unified relationship among thermal power plants has been changed to gambling one. To solve the above new problems...

Abstract The structural performance of the old existing RC building needs to be evaluated, as it is susceptible severe damage. There are two different types examine members’ capacity: destructive and non-destructive tests, with their drawbacks difficulties. main purpose this research establish integrated approach evaluating compressive strength beams by providing distribution visualization. Hen...

this study was designed to elucidate the effect of ascorbic acid on salivary total antioxidant capacity in smokers. in this single blind crossover clinical trial, the whole unstimulated saliva of 30 smokers, who were randomly divided into two groups, was collected. in the first phase after the saliva collection, one group of patients took 500 mg of vitamin c powder, for 3 weeks. then, saliva of...

background: human body posture influences on his/her physiological functions. the purpose of this study was to investigate the effect of forward shoulder correction on pulmonary function of elementary female students. methods: subjects of this quasi-experimental research were two groups (n=20) of students with normal posture (np) and forward shoulder posture(fsp)  which is divided randomly into...

The use of the stability ball as a platform for upper-body resistance training has gained much attention in recent years. However, the efficacy of such training regimens remains largely unstudied. The purpose of this study was to evaluate the influence of platform (unstable vs. stable, stability ball vs. flat bench) on strength and work capacity during barbell chest-press exercise. We also soug...

In power systems, energy storage effectively improves the reliability of the system and smooths out the fluctuations of intermittent energy. However, the installed capacity value of energy storage cannot effectively measure the contribution of energy storage to the generator adequacy of power systems. To achieve a variety of purposes, several control strategies may be utilized in energy storage...

OBJECTIVE Psychophysical lift capacity tests are lifting tests in which the performance, expressed in Newtons, is divided by the perceived exertion, expressed on a Borg scale. The aim of this study was to analyse test-retest reliability of psychophysical lift capacity tests. SUBJECTS Patients with non-specific chronic low back pain (n=20) and healthy subjects (n=20). METHODS Psychophysical ...

BACKGROUND Little is known about cardiorespiratory and metabolic response in healthy children during progressive maximal exercise test. OBJECTIVE To test the hypothesis that children show different responses in cardiorespiratory and metabolic parameters during progressive maximal exercise test when compared with adults. METHODS Twenty-five healthy children (gender, 15M/10F; age, 10.2 +/- 0....

Global climate change is affecting health and mortality, particularly in vulnerable populations. High ambient temperatures decrease blood pressure (BP) in young and middle aged adults and may lead to orthostatic hypotension, increasing the risk of falls in older adults. The aim of this study was to evaluate the feasibility of a test protocol to investigate BP response and aerobic capacity of ol...