1. 1) American College of Sports Medicine [ACSM]. Guidelines for exercise testing and prescription, 6th ed. Philadelphia: Lippincott Williams and Wilkins, 2006.
2. 2) American College of Sports Medicine [ACSM]. ACSM’s resources for clinical exercise physiology, 2nd ed. Philadelphia: Lippincott Williams and Wilkins, 2009.
3. 3) Thorsten S, Stefanie S, Billy S: Aerobic dance: health and fitness effects on middle-aged premenopausal women. J Exerc Physiol, 2008, 11: 25–33.
4. 4) Takeshima N, Tanaka K, Kobayashi F, et al.: Effects of aerobic exercise conditioning at intensities corresponding to lactate threshold in the elderly. Eur J Appl Physiol Occup Physiol, 1993, 67: 138–143.
5. 5) McArdle WD, Katch FI, Katch VL: Exercise physiology energy, nutrition, and human performance, 6th ed. Philadelphia: Lippincott Williams & Wilkins, 2007.