نتایج جستجو برای: chemistry swimming pools criteria
تعداد نتایج: 396773 فیلتر نتایج به سال:
This study investigates the relation between swimming infrastructure and participation in Flanders. First, we investigate whether availability of facilities is related to higher and/or frequency. Second, focus on relationship with quality aspects pools. A number datasets are combined, namely two large-scale sports surveys (children N = 2,920; adults =3,781), a database, survey among pools (N =1...
In an effort to encourage youth to acquire recommended levels of moderate to vigorous physical activity (MVPA), we need to examine affordances available to enhance opportunities. Included for consideration should be built environments such as swimming pools which can have significant impacts through leisure service delivery to promote active lifestyles. For this study, The System for Observing ...
BACKGROUND Exposure to disinfection by-products (DBPs) in drinking water has been associated with cancer risk. A recent study (Villanueva et al. 2007; Am J Epidemiol 165:148-156) found an increased bladder cancer risk among subjects attending swimming pools relative to those not attending. OBJECTIVES We evaluated adults who swam in chlorinated pools to determine whether exposure to DBPs in po...
This study reports the detection of Acanthamoeba and Naegleria species in 14 swimming pools around Petaling Jaya and Kuala Lumpur, Malaysia. Sampling was carried out at 4 sites (the platforms (P), wall (W), 1 meter from the wall (1) and middle (2)) of each swimming pool. These free living amoebae (FLA) were detected under light and inverted microscopes after being cultured on the surface of non...
While natural (biological) swimming pools have started to become widespread around the world, particularly in European countries, it is a new development that has recently come attention and practiced Turkey. For this reason, scientific studies are mostly carried out USA Europe, which take into account climate conditions vegetation of those regions. The technology used also quite diverse been p...
Chlorinated cyanurates are added to swimming pools as disinfectants. In the presence of water, these materials hydrolyze to yield cyanurate and hypochlorous acid. To evaluate the safety of exposure to these materials, a comprehensive testing program was undertaken. This review summarizes the results of acute and subchronic tests on chlorinated isocyanurates. Findings from acute, subchronic, rep...
Participation and performance trends in age group athletes have been investigated for different sport disciplines, but not for master swimmers. The knowledge on this topic is still missing for a particular stroke such as backstroke. Changes in participation and performance of male and female age group backstroke swimmers (≥25 years) competing in 50, 100 and 200 m pool swimming at the FINA World...
BACKGROUND Despite the health benefits of swimming as a form of exercise, evidence exists that both the swimming pool environment and endurance exercise are etiologic factors in the development of asthma. The prevalence of asthma in swimmers is high compared with that in participants in other Olympic sport disciplines. There are no publications comparing the prevalence of asthma in the 5 aquati...
The aim of this study was to investigate the accuracy and reliability of above and underwater 3D reconstruction of three calibration volumes with different control points disposal (#1 - on vertical and horizontal rods; #2 - on vertical and horizontal rods and facets; #3 - on crossed horizontal rods). Each calibration volume (3 × 2 × 3 m) was positioned in a 25 m swimming pool (half above and ha...
Vol. 13 No. 4 81 venues (such as beaches or who have access to private swimming pools) to establish estimates of exposure to risk; • an investigation of the circumstances surrounding the drowning of children aged 0–6 years in NSW; • assessment of the feasibility of using community health centres as a contact point for drowning prevention information; • a feasibility trial of using a Safe Commun...
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