Heavy Working sets with a rep range of 8-to-12 will lay more stress on the muscle fibers. This will in turn damage them more than opposed to a lighter weight with a high rep range of 15 reps. Your central nervous system comes into play and your whole body is activated.
Symptoms of Too Little Phosphorus. Hypophosphatemia occurs when phosphorus levels in your blood get too low. This causes your energy levels to drop, and can cause muscle weakness, fatigue, and a low tolerance for exercise.ymptoms of Too Little Phosphorus. Hypophosphatemia occurs when phosphorus levels in your blood get too low. This causes your energy levels to drop, and can cause muscle weakness, fatigue, and a low tolerance for exercise.
Causes of Low Phosphorus Levels. Causes of hypophosphatemia can occur based on several conditions including alcoholism, chronic diarrhea, malnutrition, burns or uncontrolled diabetes. Chronic hypophosphatemia occurs when your kidneys are unable to reabsorb phosphorous due to chronic conditions or long-term use of medications such as diuretics.