Time Limit at vV02max and V02max Slow Component in Swimming: a pilot study of University Students

The aim oftms study was to measure in swimming-pool conditions, the time to exhaustion at the minimum velocity that elicits maximal oxygen consumption (TLim-vV02max) and to verify the existence of an oxygen uptake slow component (02SC) in freestyle swimming. Ten university students performed a continuous incremental protocol for vV02max assessment. Forty-eight hours later, they swam to exhaustion at vV02max to assess TLim-vV02max and 02SC. V02 was directly measured and swimming velocity was controlled by a visual pacer. Blood lactate concentrations ([La-]) and heart rate (HR) values were also measured. Mean V02max for the incremental test was 54.2±8.2 m1.kg'l.min'l, and the correspondent vV02max was 1.19±O.08 m.S,l The mean duration ofthe TLim-vV02max test was 325±76.5 s. 02SC appeared in the allout swim at VV02max (279.0±195.2 ml.min'l) and it was found to significant1y correlate with the TLim-vV02max (r = .74, p< .05). These results demonstrated that 02SC is observed also in swimming-pool conditions and that TLim-vV02max values are in accordance with typical formulations of aerobic power training sets for swimmers.We wish to thank Prof Dr. José Soares, from the Laboratory of Exercise Physiology of our faculty, for his significant contribution.info:eu-repo/semantics/publishedVersio

Case report: Androgen-secreting adrenocortical tumors in eight cats

Urine marking, aggression, and other behavioral concerns are common reasons for cat owners to seek veterinary care. Empiric treatment for lower urinary tract disease or primary behavior disorders are commonly pursued, especially in those cases with normal routine laboratory evaluations. Herein, we report the clinicopathologic findings in eight sexually altered cats that were diagnosed with androgen-secreting adrenocortical tumors. Nearly all cats (n = 7) initially were evaluated for inappropriate urination and pungent urine, with additional behavioral concerns including aggression (n = 3) and excess vocalization (n = 4) commonly reported. Penile barbs (n = 5) were identified in all five male cats, and an enlarged clitoris was observed in one female cat. Testing of serum androgen concentrations revealed abnormally high androstenedione (n = 1) or testosterone (n = 7) concentrations. In the five cases with available adrenal tissue, histopathologic evaluation identified either an adrenocortical adenoma (n = 3) or adrenocortical carcinoma (n = 2). Hormonal abnormalities resolved and clinical signs improved in the four cats that underwent surgical adrenalectomy, with each of these cats surviving &gt;1 year. However, clinical signs were minimally impacted with medical treatments, including one cat in which trilostane treatment failed to improve clinical signs or testosterone concentrations. This collection of cases underscores the importance of a detailed physical examination as well as the consideration of endocrine disturbances in cats undergoing evaluation for inappropriate urination or aggression. Furthermore, this report adds to the growing body of evidence that sex-hormone secreting adrenal tumors in cats may be an under-recognized syndrome

‘‘What an Eccentric Performance" : Storytelling in Online Let's Plays

In this article, I examine the phenomenon called Let’s Play (LP) and conduct a narrative analysis on two LPs made of Sierra Entertainment’s Phantasmagoria games. The LPs tell viewers a story different from the one told in the games, that is, they tell the story of the player rather than that of the game. In that story, the experience of playing a video game is revealed to the audience. This story would be hidden without the player-narrators know as LPs around the world. I conduct my analysis by describing seven different narrative elements that form the narration of a LP and explain how these elements together form this story of the player.peerReviewe

Influence of continuous and interval training on oxygen uptake on-kinetics

Purpose: To examine the relative effectiveness of moderate-intensity continuous training and high-intensity interval training on pulmonary O2 uptake ([latin capital V with dot above]O2) kinetics at the onset of moderate- and severe-intensity cycle exercise in previously sedentary subjects. Methods: Twenty-three healthy subjects (11 males; mean +/- SD age 24 +/- 5 yr; [latin capital V with dot above]O2peak 34.3 +/- 5.5 mL[middle dot]kg-1[middle dot]min-1) were assigned to one of three groups: a continuous training group that completed three to four sessions per week of 30-min duration at 60% [latin capital V with dot above]O2peak (LO); an interval training group that completed three to four sessions per week involving 20 x 1-min exercise bouts at 90% [latin capital V with dot above]O2peak separated by 1-min rest periods (HI); or a control group (CON). Before and after the 6-wk intervention period, all subjects completed a series of step exercise tests to moderate and severe work rates during which pulmonary [latin capital V with dot above]O2 was measured breath-by-breath. Results: ANOVA revealed that continuous and interval training were similarly effective in reducing the phase II [latin capital V with dot above]O2 time constant during moderate (LO: from 31 +/- 8 to 23 +/- 5 s; HI: from 32 +/- 9 to 21 +/- 4 s; both P < 0.05; CON: from 30 +/- 6 to 29 +/- 7 s; NSD) and severe exercise (LO: from 35 +/- 6 to 24 +/- 7 s; HI: from 32 +/- 11 to 24 +/- 7 s; both P < 0.05; CON: from 27 +/- 7 to 25 +/- 5 s; NSD) and in reducing the amplitude of the [latin capital V with dot above]O2 slow component (LO: from 0.38 +/- 0.10 to 0.29 +/- 0.09 L[middle dot]min-1; HI: from 0.41 +/- 0.28 to 0.30 +/- 0.28 L[middle dot]min-1; both P < 0.05; CON: from 0.54 +/- 0.22 to 0.66 +/- 0.38 L[middle dot]min-1; NSD). Conclusions: Six weeks of low-intensity continuous training and high-intensity interval training were similarly effective in enhancing [latin capital V with dot above]O2 on-kinetics following step transitions to moderate and severe exercise in previously untrained subjects

uvcdat: UV-CDAT 2.6

The UV-CDAT team is pleased to announce the release of UV-CDAT version 2.6. DOI Change log is here Many thanks to users, testers, and developers for helping UV-CDAT to reach this milestone. This is a bug fix release, we have fixed several major and minor bugs in version 2.6 and therefore we strongly recommend users upgrade their UV-CDAT installation. From this release on UV-CDAT is distributed via conda conda install -c uvcdat uvcdat or conda create -n uvcdat-2.6 -c uvcdat uvcdat We also alert users to an Askbot website to help the UV-CDAT user community. This supports version 2.2 onward. See: http://uvcdat.askbot.co