Consulta: subjectFacets:"Energy expenditure"
Registros recuperados: 5
Data/hora: 11/06/2024 08:12:03

Feet, heat and scallops: what is the cost of anthropogenic disturbance in bivalve aquaculture?
Provedor de dados: 5
Autores: Robson, Anthony A.; Halsey, Lewis G.; Chauvaud, Laurent.
The effects of unnatural disturbances on the behaviour and energetics of animals are an important issue for conservation and commercial animal production. Biologging enables estimation of the energy costs of these disturbances, but not specifically the effect these costs have on growth; a key outcome measure for animal farming enterprises. We looked at how natural and anthropogenically induced activity and energy expenditure of king scallops Pecten maximus varies with temperature. These data were then used to model growth time of king scallops reared in an aquaculture facility under different temperatures and anthropogenic disturbance levels. The scallops exhibited a typical total metabolic rate (MR)-temperature curve, with a peak reached at a middling...
Tipo: Text
Palavras-chave: Growth; Temperature; Anthropogenic disturbance; Activity; Metabolic rate; Energy expenditure.
Ano: 2016
URL: https://archimer.ifremer.fr/doc/00344/45561/72893.pdf

Energetic adjustments in freely breeding-fasting king penguins: does colony density matter?
Provedor de dados: 5
Autores: Viblanc, Vincent A.; Saraux, Claire; Malosse, Nelly; Groscolas, Rene.
1. For seabirds that forage at sea but breed while fasting on land, successful reproduction depends on the effective management of energy stores. Additionally, breeding often means aggregating in dense colonies where social stress may affect energy budgets.  2. Male king penguins (Aptenodytes patagonicus) fast for remarkably long periods (up to 1 center dot 5months) while courting and incubating ashore. Although their fasting capacities have been well investigated in captivity, we still know very little about the energetics of freely breeding birds.  3. We monitored heart rate (HR, a proxy to energy expenditure), body temperature and physical activity of male king penguins during their courtship and first incubation shift in a colony of some 24000 freely...
Tipo: Text
Palavras-chave: Social density; Body temperature; Seabird; Fasting; Stress; Physical activity; Heart rate; Energy expenditure.
Ano: 2014
URL: http://archimer.ifremer.fr/doc/00193/30447/29090.pdf

Evaluation of energy expenditure in forward and backward movements performed by soccer referees
Provedor de dados: 56
Autores: Paes,M.R.; Fernandez,R.
The aim of this study was to measure the energy expenditure for locomotor activities usually performed by soccer referees during a match (walking, jogging, and running) under laboratory conditions, and to compare forward with backward movements. The sample was composed by 10 male soccer referees, age 29±7.8 years, body mass 77.5±6.2 kg, stature 1.78±0.07 m and professional experience of 7.33±4.92 years. Referees were evaluated on two separate occasions. On the first day, maximal oxygen uptake (VO2max) was determined by a maximal treadmill test, and on the second day, the oxygen consumption was determined in different speeds of forward and backward movements. The mean VO2max was 41.20±3.60 mL·kg-1·min-1 and the mean heart rate achieved in the last stage of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Referee; Football (soccer); Energy expenditure; Maximal oxygen uptake (VO2max).
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000500702

High-CHO diet increases post-exercise oxygen consumption after a supramaximal exercise bout
Provedor de dados: 56
Autores: Ferreira,G.A.; Bertuzzi,R.; De-Oliveira,F.R.; Pires,F.O.; Lima-Silva,A.E.
We investigated if carbohydrate (CHO) availability could affect the excess post-exercise oxygen consumption (EPOC) after a single supramaximal exercise bout. Five physically active men cycled at 115% of peak oxygen uptake (V̇O2 peak) until exhaustion with low or high pre-exercise CHO availability. The endogenous CHO stores were manipulated by performing a glycogen-depletion exercise protocol 48 h before the trial, followed by 48 h consuming either a low- (10% CHO) or a high-CHO (80% CHO) diet regime. Compared to the low-CHO diet, the high-CHO diet increased time to exhaustion (3.0±0.6 min vs 4.4±0.6, respectively, P=0.01) and the total O2 consumption during the exercise (6.9±0.9 L and 11.3±2.1, respectively, P=0.01). This was accompanied by a higher EPOC...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Excess post-exercise oxygen consumption; EPOC; Supramaximal exercise; Energy expenditure; High-intensity exercise.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016001100703

Oxygen uptake, respiratory exchange ratio, or total distance: a comparison of methods to equalize exercise volume in Wistar rats
Provedor de dados: 56
Autores: Paes,L.S.; Borges,J.P.; Cunha,F.A.; Souza,M.G.C.; Cyrino,F.Z.G.A.; Bottino,D.A.; Bouskela,E.; Farinatti,P.
This study compared strategies to equalize the volume of aerobic exercise performed with different intensities by Wistar rats, based on the distance covered during exercise bouts and energy expenditure (EE, isocaloric sessions) obtained from oxygen uptake (V̇O2) or respiratory exchange ratio (RER). Thirty-three male rats (270.5±12.8 g) underwent maximal exercise tests to determine V̇O2 reserve (V̇O2R), being randomly assigned to three groups: moderate-intensity continuous exercise at speed corresponding to 50% V̇O2R (MIC; n=11); high-intensity continuous exercise at 80% V̇O2R (HIC; n=11); and high-intensity intermittent exercise (HII; n=11) at 60% V̇O2R (3 min) and 80% V̇O2R (4 min). Exercise duration was calculated individually to elicit EE of 5 kcal in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Energy expenditure; Aerobic exercise; Exercise testing; Metabolism; Fitness.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X2016000800607