Simultaneous positive and negative external mechanical work in human walking.

[1]  Arthur D Kuo,et al.  Energetics of actively powered locomotion using the simplest walking model. , 2002, Journal of biomechanical engineering.

[2]  P. Willems,et al.  Mechanics and energetics of human locomotion on sand. , 1998, The Journal of experimental biology.

[3]  C. T. Farley,et al.  Mechanics of locomotion in lizards. , 1997, The Journal of experimental biology.

[4]  P A Willems,et al.  Energy cost, mechanical work and muscular efficiency in swing-through gait with elbow crutches. , 1996, Journal of biomechanics.

[5]  G. Cavagna,et al.  Energy-saving gait mechanics with head-supported loads , 1995, Nature.

[6]  G. Cavagna,et al.  External, internal and total work in human locomotion. , 1995, The Journal of experimental biology.

[7]  D. Winter.  Biomechanics and Motor Control of Human Movement , 1990 .

[8]  G. Cavagna,et al.  The determinants of the step frequency in walking in humans. , 1986, The Journal of physiology.

[9]  G. Cavagna,et al.  Energetics and mechanics of terrestrial locomotion. III. Energy changes of the centre of mass as a function of speed and body size in birds and mammals. , 1982, The Journal of experimental biology.

[10]  G. Cavagna,et al.  Mechanical work in terrestrial locomotion: two basic mechanisms for minimizing energy expenditure. , 1977, The American journal of physiology.

[11]  G. Cavagna,et al.  The sources of external work in level walking and running. , 1976, The Journal of physiology.

[12]  G. Cavagna.  Force platforms as ergometers. , 1975, Journal of applied physiology.

[13]  G. Cavagna,et al.  Mechanics of walking. , 1965, Journal of applied physiology.

[14]  L Howarth,et al.  Principles of Dynamics , 1964 .

[15]  Arthur D. Kuo,et al.  The Action of Two-joint Muscles : the Legacy of W . P . Lombard , 2002 .

[16]  R. Kram,et al.  Walking in simulated reduced gravity: mechanical energy fluctuations and exchange. , 1999, Journal of applied physiology.

[17]  R. Full,et al.  Mechanics of six-legged runners. , 1990, The Journal of experimental biology.

[18]  Hilary Gonzalez,et al.  Functional Vertebrate Morphology , 1986, The Yale Journal of Biology and Medicine.

[19]  N. Heglund,et al.  Energetics and mechanics of terrestrial locomotion. , 1982, Annual review of physiology.

[20]  G. Cavagna,et al.  External work in walking. , 1963, Journal of applied physiology.