The energetics and behavior of the parapodial-swimming Aplysia brasiliana were investigated in order to compare net cost of transport (COTnet) between swimming and crawling, and to compare transport costs with other swimmers. Oxygen consumption (VO2) increased with increasing animal mass for resting, crawling, and swimming animals. Slopes of the regressions of log VO2 on log mass were 0.90, 0.9...

The Wujiang River is a tributary of the upper Yangtze River that shows great variations in its flow regime and habitat condition. Dams have been built along the Wujiang River and have altered the habitats profoundly enough that they may give rise to reproductive isolation. To test whether the swimming performance and morphology of the Chinese hook snout carp (Opsariichthys bidens), varied among...

INTRODUCTION There are no available data addressing the potential clinical risks of open-water swimming competitions. OBJECTIVE Address the risks of hypothermia and hypoglycemia during a 10-km open-water swimming competition in order to alert physicians to the potential dangers of this recently-introduced Olympic event. METHODS This was an observational cross-sectional study, conducted duri...

purpose the aims of the present study were to investigate (i) the changes in participation and performance and (ii) the gender difference in triple iron ultra-triathlon (11.4 km swimming, 540 km cycling and 126.6 km running) across years from 1988 to 2011. methods for the cross-sectional data analysis, the association between with overall race times and split times was investigated using simple...

background: the purpose of this study was to analyze the changes of t3, t4, tsh and cortisol in swimming and running college student athletes after one bout of competitive training session. materials and methods: for this purpose, 15 swimmers by the average age of 22.5±2.48 yrs, height of 177.17±2.31 cm, weight of 68.75±2.24, body mass index (bmi) 21.65±2.14 kg/m2 ) and 15 runner by the average...

Interactions between neural networks for different motor behaviors occur frequently in nature; however, there are few vertebrate models for studying these interactions. One potentially useful model involves the interactions between escape and swimming behaviors in fish. Fish can produce escape bends while swimming, using some of the same axial muscles for both behaviors. Here we study the inter...

The amount of energy available to larvae during swimming, location of a suitable recruitment site, and metamorphosis influences the length of time they can spend in the plankton. Energetic parameters such as swimming speed, oxygen consumption during swimming and metamorphosis, and elemental carbon and nitrogen content were measured for larvae of four species of bryozoans, Bugula neritina, B. si...