1. Muscle fiber lengths, pinnation angles and deformation of aponeurotic sheets in the cat medial gastrocnemius muscle during normal movement;Caputi;Soc. Neurosci. Abstr.,1989
2. Sarcomeres work in the ‘ascending limb’ in cat medial gastrocnemius muscle during walking;Caputi;Soc. Neurosci. Abstr.,1990
3. Ultrasound transit-time gives direct measurement of muscle fiber length in vivo;Griffiths,1987
4. Muscle fibers shorten when the whole muscle is being stretched in the ‘yield’ phase of the freely walking cat;Griffiths;Soc. Neurosci. Abstr.,1987
5. Stiffness changes in frog skeletal muscle during contraction recorded using ultrasonic waves;Hatta;J. Physiol.,1988