摘要:

The oxygen transporting capacity and the metabolic capacity of the vastus lateralis muscle were followed in parallel in 9 sedentary, overweighted men during a low intensity training program. Measurements were made at 0, 3, 6, 9, 12 and 30 weeks. Maximal oxygen uptake increased in an approximately linear fashion during the first 12 weeks (11%), but decreased a little (3%) during the following 18 weeks. Mean body weight decreased 8% (7.4 kg) during the training. The distribution of muscle fibre types, including the subgroups of type II fibres, did not change. Muscle enzyme activities remained essentially unchanged during the training. It was concluded that “central” och “local” adaptation need not occur in parallel, and that the leg oxygen utilization capacity probably does not limit the whole body's maximal oxygen

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1980.tb06503.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

摘要:

A new method for collecting non‐contaminated skin mucus from fishes is introduced. The method is compared with a “customary” method by gel filtration, analysis of free amino acids, and determination of dry weight. Skin mucus collected by the “customary” method is shown to be contaminated by intestinal juice. The role of skin mucus as a source of fish odorants affecting fish behaviour is discussed in the light of the above

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1980.tb06504.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

摘要:

Chemical procedures for fractionation of fish material containing odorants are described. These methods were developed with the aim of retaining the odorous activity of the material. Some of these methods were used to fractionate the intestinal contents of 1½ year old smolts of a population of anadromous char (Salmo alpinus L.). The fractions were prepared, (a) for behavioural experiments to study possible attraction effects on mature char of the same population during the migration season, and (b) for testing in physiological experiments to elucidate the olfactory potency of the different fractions. The nature and origin of the attractive substances are discussed

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1980.tb06505.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1980.tb06506.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY

ISSN:0001-6772    

DOI:10.1111/j.1748-1716.1980.tb06507.x

出版商:Blackwell Publishing Ltd    

年代:1980

数据来源: WILEY