Question

What are the two morphological mechanisms of strength development?

Answer 1

The two primary morphological mechanisms contributing to strength development are hypertrophy, characterized by an enlargement of individual muscle fibers through activities like resistance training, and neural adaptations, involving enhancements in the efficiency and coordination of the nervous system. Neural adaptations, such as improved motor unit recruitment and increased firing frequency, often lead to initial strength gains in a training program, even before substantial muscle size increases occur.

Step-by-step explanation:

The two main morphological mechanisms of strength development are hypertrophy and neural adaptations.

1. Hypertrophy: This involves an increase in the size of individual muscle fibers. Resistance training, such as weightlifting, can lead to hypertrophy as muscles adapt to the stress placed on them by increasing in cross-sectional area.

2. Neural Adaptations: These involve improvements in the efficiency and coordination of the nervous system. Early strength gains in a training program are often attributed to neural adaptations, which include enhanced motor unit recruitment, increased firing frequency, and improved synchronization of muscle contractions. These adaptations contribute to improved strength without a significant increase in muscle size.

Answer 2

Thigmomorphogenesis and hypertrophy are the two morphological mechanisms of strength development. Thigmomorphogenesis is a slow developmental change in the shape of a plant subjected to continuous mechanical stress, while hypertrophy refers to the increase in the size and mass of skeletal muscles due to the production of additional sarcomeres and myofibrils within each muscle fiber.

Step-by-step explanation:

There are two morphological mechanisms of strength development. One mechanism is thigmomorphogenesis, which is a slow developmental change in the shape of a plant subjected to continuous mechanical stress. When trees bend in the wind, for example, growth is usually stunted and the trunk thickens. Strengthening tissue, especially xylem, is produced to add stiffness to resist the wind's force. The other mechanism is hypertrophy, which refers to the increase in the size and mass of skeletal muscles due to the production of additional sarcomeres and myofibrils within each muscle fiber.