<qa>  What is the age of the women?4. Average fitness as determined by ACSMs Guidelines for Exercise Testing and Prescription for men, VO2max 43 for age 20-39 years, 38 for age 40-49 years, 35 for age 50-59, 31 for age 60-75; for women, 36 for age 30 years, 34 for age 30-39 years, 32 for age 40-49 years, 25 for age 50-59 years, 24 for age 60-75 years 