Answer:
55
Explanation: Older adults can be categorized into three different age groups:
Category 1: Ages 55 to 65 years. They are generally able to engage in most moderate weight training programs, albeit with minor adjustments for joint concerns, diminished ROM, and potential cardiovascular issues.
Category 2: Ages 65 to 80 years. Training routines should be modified based on health advice, considering ROM limitations, fatigue, reduced muscle strength, and joint discomfort.
Category 3: Individuals aged 80 and above. Close monitoring is advised, with low-intensity levels set, emphasizing strength for specific muscle groups, overall posture improvement, and injury prevention.