Athletes use a combination of strength training, diet, and nutritional supplementation to induce muscle hypertrophy. Muscle hypertrophy involves an increase in size of skeletal muscle through a growth in size of its component cells. Two factors contribute to hypertrophy: sarcoplasmic hypertrophy, which focuses more on increased muscle glycogen storage; and myofibrillar hypertrophy, which focuses more on increased myofibril size.
CD media. Compact discs hold 700MB of data (equivalent to 80 minutes of audio, hundreds of high-quality digital images, and small video files). Unlike DVDs, CDs are not yet available in double-sided or dual-layer formats.
A double-sided, single-layer DVD doubles the capacity to 9.4 gigabytes. Double-layer DVDs also exist, but are not compatible with DVD-RW drives. A single-sided double-layer DVD holds 8.5 gigabytes, while a double-sided one again doubles that to 17 gigabytes. The previous generation of data storage, the compact disk, or CD, has a storage capacity of only about 700 megabytes, while the next generation, the Blu-ray, has a capacity of 25 gigabytes for a single-sided, single-layer disk. Learn more about Television & Video.