• cost of locomotion tuc70a
• cost of transport tuc70a
• energy costs for locomotion ale05a
• mass-specific minimum cost of terrestrial locomotion ful90a
• metabolic cost ful90a
• ground contact cost ful90a
• metabolic cost of locomotion per stride ful90a
• transport performance geb51a
• comparative economy of locomotion geb51a
• effectiveness of locomotion tuc70a
• efficiency of the transport process tuc70a
• Minimum Cost of Locomotion ful91b
• Specific Resistance ful91b

Tucker (tuc70a) quantifies the cost of transport as a kind of effectiveness of locomotion.

For example, the higher the cost of transport is, the more energy input is needed in order to travel a fixed distance. Or, the more efficient locomotion is, the more an animal/device can travel for a fixed energy input.

Full (ful91b) refers to:

and to:

In contrast to the effectiveness of locomotion, the efficiency of locomotion can be defined as the ratio of power output to power input (tuc70a).

• tuc70a: cost of locomotion over body weight in kilogram kg (why not newton N, consider Mass versus weight - Wikipedia <2019-08-30 Fr>)
• ful91b: Specific Resistance over Body Mass
• geb51a: cost of locomotion over max speed (von Kármán–Gabrielli diagram, Gabrielli–von Kármán diagram, GvK

Bibliography

• [tuc70a] Tucker, Energetic cost of locomotion in animals., Comparative Biochemistry and Physiology, 34, 841-846 (1970).
• [ale05a] Alexander, Models and the scaling of energy costs for locomotion, Journal of Experimental Biology, 208(9), 1645-1652 (2005). link. doi.
• [ful90a] Full, Zuccarello & Tullis, Effect of variation in form on the cost of terrestrial locomotion, J. Exp. Biol., 150, 233-246 (1990). link.
• [geb51a] Gebrielli & von Karman, WHAT PRICE SPEED?, Journal of the American Society for Naval Engineers, 63(1), (1951). link. doi.
• [ful91b] Full, Animal motility and gravity, The Physiologist, 34, S15-18 (1991).