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.
CD-R discs can be read by any modern optical drive or player, although some elderly home audio and automobile CD players reject them. CD-R discs differ primarily in capacity and quality. A standards-compliant CD-R disc stores 74 minutes of audio or about 650 MB of data. Although they are nonstandard, most CD-Rs now sold have a capacity of about 80 minutes of audio or 700 MB of data.