1. Basmajian, J.V. and De Luca, C.J. (1985) Muscles Alive. Their Functions Revealed by Electromyography, 5th edn., Williams and Wilkins, Baltimore.
2. Beelen, A. and Sargeant, A.J. (1991) Effect of fatigue on maximal power output at different contraction velocities in humans, J. Appl. Physiol., 71: 2332–2337.
3. Bellamare, F. and Bigland-Ritchie, B. (1987) Central components of diaphragmatic fatigue assessed from bilateral phrenic nerve stimulation, J. Appl. Physiol., 62: 1307–1316.
4. Bigland-Ritchie, B., Jones, D.A. and Woods, J.J. (1979) Excitation frequency and muscle fatigue: electrical responses during human voluntary and stimulated contractions, Exp. Neurol., 64: 414–427.
5. Bigland-Ritchie, B., Donavan, E.F. and Roussos, C.S. (1981) Conduction velocity and EMG power spectrum changes in fatigue of sustained maximal efforts, Am. J. Physiol., 51: 1300–1305.