References
- Ashworth B., Grimby L., Kugelberg E. Comparison of voluntary and reflex activation of motor units. Functional organization of motor neurones. J. Neurol. Neurosurg. Psychiat. 1967; 30: 91
- Åstrand P. O., Rodahl K. Textbook of Work Physiology. McGraw-Hill, New York 1970
- Åstrand P. O., Saltin B. Oxygen uptake during the first minutes of heavy muscular exercise. J. appl. Physiol. 1961; 16
- Burke R. E., Levine D. N., Zojac F. E., Tsairis P., Engel W. K. Direct correlation of physiological and histochemical characteristics in motor units of cat triceps suree. Communications at the Fourth International Congress of Electromyography September, 1971
- Clausen J. P. Effects of physical conditioning. A hypothesis concerning circulatory adjustment to exercise. Scand. J. clin. Lab. Invest. 1969; 24: 305
- Denny-Brown D. Experimental studies pertaining to hypertrophy, regeneration and degeneration. Res. Publ. Ass. nerv. ment. Dis. 1961; 38: 147
- Doyle A. M., Mayer R. F. Studies of the motor unit in the cat. Bull. Sch. Med. Maryland 1969; 54: 11
- Dubowitz V., Pearse A. G. E. A comparative histochemical study of oxidative enzymed and phosphorylase activity in skeletal muscle. Histochemie 1960; 2: 105
- Edström L. Selective changes in the sizes of red and white muscle fibres in upper motor lesion and parkinsonism. J. neurol. Sci. 1970; 11: 537
- Edström L., Kugelberg E. Histochemical composition distribution of fibres and fatiguability of single motor units. Anterior tibial muscle of the rat. J. Neurol. Neurosurg. Psychiat. 1968; 31: 424
- Edström L., Nyström B. Histochemical types and sizes of fibres in normal human muscles. Acta neurol. scand. 1969; 45: 257
- Edström L., Torlegård K. Area estimation of transversely sectional muscle fibres. Z. wiss. Mikr. 1969; 69: 166
- Ekblom B., Hermansen L., Saltin B. Hastighetsåkning på skridsko. Idrottsfysiologisk rapport nr 5. Framtiden, Stockholm 1967
- Engel W. K. The essentiality of histo- and cytochemical studies of skeletal muscle in the investigation of neuromuscular disease. Neurology (Minneap.) 1962; 12: 778
- Fenichel G. M., Engel W. K. Histochemistry of muscle in infantile spinal muscular atrophy. Neurology (Minneap.) 1963; 13: 1059
- Guth L. ‘Trophic’ influences of nerve on muscle. Physiol. Rev. 1968; 48: 645
- Hannerz J. Differential voluntary activation of low- and high frequency motor units in man. Experientia. Basel, in press
- Hermansen L., Wachtlova M. Capillary density of skeletal muscle in well-trained and untrained men. J. appl. Physiol. 1971; 30: 860
- Ikai M. The effects of training on muscular endurance. Proc. int. Congr. Sport Sci. 1964; 109
- Kugelberg E., Edström L. Differential histochemical effects of muscle contractions on phosphorylase and glycogen in various type of fibre. Relation to fatigue. J. Neurol. Neurosurg. Psychiat. 1968; 31: 415
- Man-i M., Ito K., Kikuchi K. Histological studies of muscular training. Res. Physical Education 1967; 11: 153
- Marpurgo P. Über Aktivitäts-Hypertrophie der Willkürlichen Muskeln. Virchows Arch. path. Anat. 1897; 150: 522
- Morgan T. E., Cobb L. A., Short F. A., Ross R., Gunn D. R. Effects of long-term exercise on human muscle mitrochondria. Muscle Metabolism During Exercise, B. Pernow, B. Saltin. Plenum Press, New York—London 1971
- Nyström B. Histochemistry of developing cat muscles. Acta neurol. scand. 1968; 44: 405
- Ollander B., Karlson J. Muscle metabolites with exhaustive static exercise of different duration. Acta physiol. scand., in press
- Romanul F. C. A. Enzymes in muscle: I. Histochemical studies of enzymes in individual muscle fibres. Arch. Neurol. (Chic.) 1964; 11: 355
- Saltin B., Åstrand P. O. Maximal oxygen uptake in athletes. J. appl. Physiol. 1967; 23: 353
- Siebert W. W. Untersuchungen über Hypertrophie des Skelettmuskels. 2. Klin. Med. (Wien) 1967; 109: 350
- Vannotti A., Pfister H. Untersuchungen zum Studium der Trainiertseins. Arbeitsphysiologie 1934; 7: 127
- Warmolts R., Engel W. K. Correlation of motor unit behaviour with histochemical myofiber type in humans by open-biopsy electromyography. Communications at the Fourth International Congress of Electromyography. September, 1971