Highlighted Article: Soft tissue deformations dissipate substantial energy during human walking, as predicted by a simple dynamic walking model.
Guidelines for reporting methods to estimate metabolic rates by aquatic intermittent-flow respirometry
Summary: The first checklist of guidelines for reporting methods of intermittent-flow respirometry to enhance study replicability. Methods reporting for this technique has been inconsistent and incomplete in peer-reviewed articles.
Summary: This Review considers the multiple roles played by Hif-1α in teleosts, examining its involvement in the ventilatory response and cardiac function in hypoxia and its role during thermal disturbance.
Summary: A method to accurately estimate stance velocity in running that requires only contact time, flight time, average speed and gross anthropometry (i.e. mass and leg length or height), improving generalizability of spring–mass analyses.
Mitochondrial KATP channels stabilize intracellular Ca2+ during hypoxia in retinal horizontal cells of goldfish (Carassius auratus)
Summary: Interneurons of the goldfish retina are resistant to the effects of hypoxia as a result of an intracellular pathway involving ATP-dependent K+ channels of the mitochondrial membrane.
Activation of cardiac Nmnat/NAD+/SIR2 pathways mediates endurance exercise resistance to lipotoxic cardiomyopathy in aging Drosophila
Summary: Cardiac Nmnat/NAD+/SIR2 pathways are important antagonists of high-fat diet-induced lipotoxic cardiomyopathy and their activation is the key underlying mechanism in the prevention of lipotoxic cardiomyopathy by endurance exercise and cardiac Nmnat overexpression in Drosophila.
Oxidative damage increases with degree of simulated bacterial infection, but not ectoparasitism, in tree swallow nestlings
Summary: Even very low doses of a simulated infection increase levels of oxidative damage in tree swallow nestlings, but only high doses decrease body mass.
Interspecific variation in bristle number on forewings of tiny insects does not influence clap-and-fling aerodynamics
Summary: Integrating morphological analysis of bristled wings seen in miniature insects with physical model experiments shows that aerodynamic forces are unaffected across the broad biological variation in number of bristles.