Study: NCT01603784

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Intensive Exercise
Description: Standardized aerobic training program that is individualized to each participant's fitness level, and supervised by a certified exercise specialist. Participants attend 3 training sessions per week for 6 months. The session begins with a 10-15 minute warm-up. Participants then exercise on a treadmill or stationary bike, followed by cool-down activities. Heart rate and rating of perceived exertion are used to evaluate exercise intensity. Participants begin at \~30 min/day 60-70% of HR max and/or an equivalent level of RPE, and progress to 45-50 minutes at 75-85% for HR max.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Intensive Exercise
Description: Standardized aerobic training program that is individualized to each participant's fitness level, and supervised by a certified exercise specialist. Participants attend 3 training sessions per week for 6 months. The session begins with a 10-15 minute warm-up. Participants then exercise on a treadmill or stationary bike, followed by cool-down activities. Heart rate and rating of perceived exertion are used to evaluate exercise intensity. Participants begin at \~30 min/day 60-70% of HR max and/or an equivalent level of RPE, and progress to 45-50 minutes at 75-85% for HR max.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Home Exercise
Description: Exercise program consisting of stretching, range of motion, and simple yoga exercises designed to improve flexibility. Each participant has a 60-minute sessions with an exercise trainer to teach them how to perform the exercises correctly. They are also given diagrams illustrating the exercises, along with written instructions. They are instructed to perform these exercises at home at least 3 times per week for 30 - 45 minutes. They also go to the recreational center monthly to meet with an exercise trainer to ensure that they are doing the exercises correctly. Participants record their exercise activities on a calendar for the 6 months.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Home Exercise
Description: Exercise program consisting of stretching, range of motion, and simple yoga exercises designed to improve flexibility. Each participant has a 60-minute sessions with an exercise trainer to teach them how to perform the exercises correctly. They are also given diagrams illustrating the exercises, along with written instructions. They are instructed to perform these exercises at home at least 3 times per week for 30 - 45 minutes. They also go to the recreational center monthly to meet with an exercise trainer to ensure that they are doing the exercises correctly. Participants record their exercise activities on a calendar for the 6 months.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Cognitive Training
Description: Computer-based training that is is administered 3 days per week for 8 weeks during months 5 and 6. The training program focuses on 3 types of cognitive processes: task coordination, prospective memory, and retrospective memory retrieval. One day of the week is devoted to each of the three cognitive processes. Some training sessions include a homework assignment for application and practice of the target cognitive processes in everyday activities.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Cognitive Training
Description: Computer-based training that is is administered 3 days per week for 8 weeks during months 5 and 6. The training program focuses on 3 types of cognitive processes: task coordination, prospective memory, and retrospective memory retrieval. One day of the week is devoted to each of the three cognitive processes. Some training sessions include a homework assignment for application and practice of the target cognitive processes in everyday activities.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Health Education
Description: Weekly educational sessions are administered during months 5 and 6, conducted at the recreational center by research staff. Sessions last 1 hour, and cover health and other topics unrelated to exercise or cognition, such as nutrition, hearing loss, stroke, and saving energy in one's home. At the completion of each session, participants are given a homework assignment.

Intervention type: BEHAVIORAL
Group type: EXPERIMENTAL
Intervention: Health Education
Description: Weekly educational sessions are administered during months 5 and 6, conducted at the recreational center by research staff. Sessions last 1 hour, and cover health and other topics unrelated to exercise or cognition, such as nutrition, hearing loss, stroke, and saving energy in one's home. At the completion of each session, participants are given a homework assignment.