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.
Writable compact disks can be either CD-R (which are a write-one media) or CD-RW (to which data can be written and erased typically a few hundred times). The storage capacity of a compact disk is up to about 700MB for CD-R and somewhat less for CD-RW media (and depending on the format used to write the data). For the reliable back-up or exchange of up to 700MB of data there is still little to beat a compact disk.