2005
DOI: 10.1242/jeb.01631
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Maximal metabolic rates during voluntary exercise, forced exercise, and cold exposure in house mice selectively bred for high wheel-running

Abstract: SUMMARY Selective breeding for high wheel-running activity has generated four lines of laboratory house mice (S lines) that run about 170% more than their control counterparts (C lines) on a daily basis, mostly because they run faster. We tested whether maximum aerobic metabolic rates(V̇O2max) have evolved in concert with wheel-running, using 48 females from generation 35. Voluntary activity and metabolic rates were measured on days 5+6 of wheel access (mimicking conditions during selection), us… Show more

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Cited by 86 publications
(112 citation statements)
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References 59 publications
(69 reference statements)
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“…Mice selected for higher voluntary running had elevated MMR during voluntary exercise (Rezende et al, 2005), but they did not have higher BMR (Kane et al, 2008). In addition, during forced exercise, neither MMR nor BMR was greater in mice selected for high voluntary running than in controls (Rezende et al, 2005(Rezende et al, , 2009). On the basis of these results, it would be intriguing to see what would happen to MMR and BMR if one selected on the intensity of exercise; that is, which would likely be more similar to our selection for high MMR.…”
Section: Discussionmentioning
confidence: 89%
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“…Mice selected for higher voluntary running had elevated MMR during voluntary exercise (Rezende et al, 2005), but they did not have higher BMR (Kane et al, 2008). In addition, during forced exercise, neither MMR nor BMR was greater in mice selected for high voluntary running than in controls (Rezende et al, 2005(Rezende et al, , 2009). On the basis of these results, it would be intriguing to see what would happen to MMR and BMR if one selected on the intensity of exercise; that is, which would likely be more similar to our selection for high MMR.…”
Section: Discussionmentioning
confidence: 89%
“…Lines of mice selected to be high runners ran for more hours per day but not at faster speeds (Garland et al, 2011). Mice selected for higher voluntary running had elevated MMR during voluntary exercise (Rezende et al, 2005), but they did not have higher BMR (Kane et al, 2008). In addition, during forced exercise, neither MMR nor BMR was greater in mice selected for high voluntary running than in controls (Rezende et al, 2005(Rezende et al, , 2009).…”
Section: Discussionmentioning
confidence: 99%
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“…Duman et al (2008) speculated that reduced locomotion in the open-field that was possibly related to immediate fatigue after running (see also Fuss et al 2010). This seems unlikely to us, however, as even our HR mice do not run voluntarily on wheels at speeds that exceed their maximal aerobic capacity Rezende et al 2005), nor do they show obvious signs of fatigue during or following wheel running (Meek et al 2009;personal observations). Alternatively, voluntary wheel running induces a significant elevation in circulating corticosterone in both HR and C mice (Girard and Garland 2002) and in C57BL/ 6N mice (Droste et al 2003).…”
Section: Genetic Correlations and Correlated Responses To Selectionmentioning
confidence: 85%
“…3074; Mallinckrodt Baker, Deventer, Holland) diluted in Drabkin's reagent in the following concentrations: 0.0, 5.5, 13.8 and 17.5g100ml -1 . The mean absorbance of the duplicate samples was used to calculate the [Hb].Forced exercise on a treadmill was used to measure V O2,max (Hayes and Chappell, 1990;Chappell et al, 2003;Rezende et al, 2005;Rezende et al, 2006a). The treadmill was inclined at a 15deg.…”
mentioning
confidence: 99%