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What is glycolytic capacity?
Glycolytic capacity refers to the maximum ability of cells, particularly muscle cells, to generate energy through the glycolytic pathway, which breaks down glucose to produce ATP without the need for oxygen. It is a key factor in high-intensity, short-duration activities, such as sprinting or weightlifting, where rapid energy production is required. This capacity can be influenced by factors such as training, muscle fiber type, and metabolic enzyme levels. In sports science, measuring glycolytic capacity helps in understanding an athlete's performance and endurance potential.
What are the three muscle fiber types?
Type 1 (slow twitch oxidative) , type 2a (fast twitch oxidative) and type 2b (fast twitch glycolytic).
What type of skeletal muscle fibers are largest in diameter and contain most myofibrils?
Fast Glycolytic
What is a fast fiber?
A Fast Oxidative Fiber is a type of muscle fiber with many mitochondria and capillaries. This type has a high myoglobin content. This type of muscle tires more quickly than the slow oxidative fibers and is an intermediate sized muscle. This muscle is good for sprinting and other short, fast-paced activities.
What is the difference between fast twitch and slow twitch muscle fibers?
Fast twitch muscle fibers are Type II muscle fibers. These muscle fibers have high explosive power and are anaerobic. They have a fast contractile speed and can reach peak tension in 50ms. They have a high glycolytic capacity and have low to moderate resistance to fatigue. Their motor unit strength is high.Slow twitch muscle fibers are Type I muscle fibers. These muscle fibers have steady power and are aerobic. The have a slow contractile speed and needs 110ms to reach peak tension. They have a low glycolytic capacity and a high resistance to fatigue. Their motor unit strength is low.
What type of muscle fiber pennation is the deltoid muscle?
A deltoid muscle is the muscle that forms the rounded part of the shoulder.
How does each type muscle fiber affect muscle strength and endurance?
Cardiac (heart)
Are longer muscles inherently stronger than shorter muscles?
No, the length of a muscle does not determine its strength. Muscle strength is determined by factors such as muscle fiber size, muscle fiber type, and training.
The Type of muscle fiber found in the digestive system?
smooth
What is the type of response of any muscle fiber?
all or none
Is Type 1 or Type 2a muscle fiber primarily red?
type 2a type 2a
What type of sensory receptors are made up of very small skeletal muscle fiber?
muscle spindles
