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.
Review the treatment information pages for various causes of Low blood calcium: 1  Chronic kidney disease. 2  22q11.2 deletion syndrome - Low blood calcium. 3  Chemical poisoning -- White Phosphorus - low blood calcium. 4  Chromosome 22q deletion - low blood calcium. 5  Striped Blister Beetle poisoning - low blood calcium.