What is the crossover concept in exercise physiology?
The crossover point is the power output at which energy from CHO-derived fuels predominates over energy from lipids, with further increases in power eliciting a relative increment in CHO utilization and a decrement in lipid oxidation.
What is the crossover concept?
The “crossover” concept represents a theoretical means by which one can understand the effects of exercise intensity and prior endurance training on the balance of carbohydrate (CHO) and lipid metabolism during sustained exercise.
What is the crossover concept nutrition?
The crossover concept is a physiological term that describes the relationship of fat and carbohydrate oxidation to intensity of exercise. As exercise intensity increases, the body prefers to use carbohydrate for energy.
What is meant by the crossover concept and how does it change with endurance exercise training?
The crossover concept in relation to exercise intensity is the idea that the balance of fat and carbohydrate utilization during exercise depends on the interaction between exercise intensity and the person’s endurance training status.
What is the crossover concept quizlet?
What is the crossover concept? As intensity of exercise increases, use of fats decreases and use of carbs increases.
What is the crossover affect?
The “crossover” effect, a phenomenon by which some minority groups switch from low to high risk for substance use as a function of age, was first documented 25 years ago. However, rigorous methodological research examining the crossover effect has only recently emerged.
What is the concept of metabolic response to exercise influence of duration and intensity?
With an increasing duration of exercise, glucose uptake by muscle begins to decline, and there is an increased dependency on free fatty acids for energy metabolism. Free fatty acid uptake becomes progressively greater, so that after 3–4 h of moderate exercise, free fatty acids are the predominant fuel being utilized.
What is the crossover point in kinesiology?
The crossover point is the intensity where fat and carbohydrate utilization intersect (see figure 2.15) as the energy from fat decreases and the energy from carbohydrate increases. Beyond this crossover point, further increases in power are met with further increments in CHO utilization and decrements in fat oxidation.
What exercise intensity contributes to the highest percentage of fat use?
~60-65%
Additional research has demonstrated that an exercise intensity of ~60-65% elicits maximal fat oxidation rates (Achten et al., 2002; Randell et al., 2017).
What part of chest do cable crossovers work?
pectoralis major muscles
Cable crossovers target the pectoralis major muscles’ sternal heads, found in the bottom of your chest as well as activating muscles in your shoulder and back. The standing Cable crossover exercise recruits the third most muscle fibres in your chest, only behind bench press and flyes.