Exercise induced increases in muscle fiber number

@article{Gonyea2004ExerciseII,
  title={Exercise induced increases in muscle fiber number},
  author={William J. Gonyea and Digby G. Sale and Francine B. Gonyea and Alan E. Mikesky},
  journal={European Journal of Applied Physiology and Occupational Physiology},
  year={2004},
  volume={55},
  pages={137-141}
}
SummaryThe effect of weight-lifting, which induced muscular enlargement, on fiber number was tested in the flexor carpi radialis muscle by operantly conditioning 6 cats to flex their right wrist against increasing resistance for an average of 101 weeks. The left was used as a control. At the end of training, the cats were performing “one-arm“ lifts with an average of 57% of their body weight. There was an 11% greater muscle weight (P<0.01) and 9% (P<0.02) more fibers in the exercised muscles… Expand
The role of hyperplasia on the increase of skeletal muscle size
TLDR
This brief review aims to verify the role of hyperplasia in the increase of skeletal muscle size and defines it as an increase in the cells, or fibers, number in the muscle. Expand
Effects of velocity of isokinetic training on strength, power, and quadriceps muscle fibre characteristics
TLDR
No significant changes were observed over the 10-week training period in percentages of type I, IIa and IIb fibres, but both groups showed significant increases in type I and IIa fibre areas. Expand
- 289-Hyperplasia in Exercise-Induced Muscle Growth ?
Compensatory growth in response to exercise is an important adaptation mechanism of skeletal muscles, as they become in this way able to move heavier mechanical loads. The increase of muscle mass isExpand
Morphological and Neurological Contributions to Increased Strength
TLDR
The gains in strength with HRST are undoubtedly due to a wide combination of neurological and morphological factors, although there is contrary evidence suggesting no change in cortical or corticospinal excitability. Expand
Hyperplasia and Regeneration of Muscle Fibers
TLDR
Muscle regeneration after muscle injuries incurred during exercises are considered as a factor in hyperplasia induced by exercise, and several reports have demonstrated that this type of regeneration can be promoted by growth factors, ultrasound, and muscle stretching. Expand
21 2 Skeletal Muscle Plasticity
TLDR
For the sports nutritionist, a fundamental understanding of the structure and function of skeletal muscle is important inasmuch as the adaptive response to various contractile and nutritional perturbations are manifest in this tissue. Expand
CHAPTER 5 – Peripheral Motor System
TLDR
This chapter describes first the innervation of human muscle and then some features of muscle organization and illustrates the muscle receptors and their innervation in cat muscle. Expand
Identifying the Structural Adaptations that Drive the Mechanical Load-Induced Growth of Skeletal Muscle: A Scoping Review
TLDR
This review thoroughly summarize what is currently known about the macroscopic, microscopic and ultrastructural changes that drive mechanical load-induced growth and highlights the critical gaps in knowledge that need to be filled. Expand
Tongue exercise and ageing effects on morphological and biochemical properties of the posterior digastric and temporalis muscles in a Fischer 344 Brown Norway rat model.
TLDR
It is suggested that increasing age induces biochemical changes in muscles of the jaw, specifically showing an increase the proportion of slower contracting MyHC isoforms in the posterior digastric and temporalis muscles only. Expand
Muscle Growth and Fiber Type Composition in Hind Limb Muscles during Postnatal Development in Pigs
TLDR
The rapid increase in muscle mass compared to body mass reflects the high performance in meat production of the cross pig investigated. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 36 REFERENCES
Skeletal muscle fiber splitting induced by weight-lifting exercise in cats.
TLDR
The total number of muscle fibers of the right exercised FCR increased significantly when compared with that of the unexercised left FCR (p less than 0.05), found to be due to muscle fiber splitting. Expand
Fiber number and size in overloaded chicken anterior latissimus dorsi muscle.
TLDR
The concept that skeletal muscle enlargement in response to chronic overload is produced by hypertrophy of preexisting fibers and not be a formation of new fibers is supported. Expand
Muscle hypertrophy in bodybuilders
  • P. Tesch, L. Larsson
  • Chemistry, Medicine
  • European Journal of Applied Physiology and Occupational Physiology
  • 2004
TLDR
The results suggest that weight training induced muscle hypertrophy may be regulated by different mechanisms depending upon the volume and intensity of exercise. Expand
THE RESPONSE OF MUSCLE TO STRENUOUS EXERCISE
TLDR
It is shown that a muscle can be replaced by one only one-fifth its weight, provided the latter is trained adequately, and not even the most arduous training could inflict permanent damage on the muscle. Expand
Skeletal muscle fiber splitting with weight-lifting exercise in rats.
TLDR
There were preliminary indications that this work-induced fiber-splitting process may be a physiological adaptation of muscle to the stress of exercise. Expand
Physiology of weight-lifting exercise.
This review describes the major features of skeletal muscle adaptation to weight-lifting exercise. Changes in contraction time, fiber size, and possibly fiber number may result in response toExpand
Muscular enlargement and number of fibers in skeletal muscles of rats.
TLDR
Data demonstrate that hypertrophy rather than hyperplasia was responsible for increases from 10 to over 100% in the weight of skeletal muscles. Expand
Muscle fiber necrosis and regeneration induced by prolonged weight‐lifting exercise in the cat
TLDR
It was postulated that weight‐lifting exercise accelerates muscle fiber turnover in the cat FCR, and "Satellite‐like" cells were observed in trained muscle. Expand
An experimental model for the study of exercise-induced skeletal muscle hypertrophy.
TLDR
The striking morphological and histochemical transformations that occur during physiological hypertrophy are now available for experimental investigation using this model. Expand
Muscle fiber number in biceps brachii in bodybuilders and control subjects.
TLDR
It is concluded that in humans, heavy resistance training directed toward achieving maximum size in skeletal muscle does not result in an increase in fiber numbers. Expand
...
1
2
3
4
...