Table 1: Physical activity interventions in African Americans.

Author/ yearStudy typePopulation typePlaceMean ageNo. of participantsStudy durationControlInterventionOutcome

Martin et al. 2009 [52]Randomized trialPost-menopausal women, obese
~65% white
 28% AA
 6.5% other
Exercise laboratory45–75 yrs430
92 = control
147 = 4 KKW
96 = 8 KKW
95 = 12 KKW
6 monthsNonexercise control group:
Base level activity
3 groups (exhaust 4, 8, and 12 KKW (50%, 100%, and 150% of the recommended) kcal/kg of body weight per week resp.)
3-4 training sessions per week.
12 KKW had significant increase in QOL.
Mean weight change = −0.94 (4 KKW), −1.34 (8 KKW), and −1.86 (12 KKW) Kg.

Lee et al. 2010 [54]Prospective cohort studyHealthy US women (5% AA)Individual preferencesAverage
54.2 yrs.
3407913 yrs.Three groups based on MET
(1) <7.5 MET (<150 mins/week of moderate-intensity PA)
(2) 7.5–21 MET of moderate intensity
(3) >21 MET (>420 mins/week) of moderate intensity
Women who exercised 420 minutes per week (60 mins a day) in a moderate-intensity activity gained less than 2.3 Kg in three years.

Dubbert et al. 2008 [55]Prospective designMale veterans 16% AADepartment of Veterans Affairs Medical Center, Jackson Mississippi60–85 yrs.224
I = 120
C = 104
10 monthsDiscussion of health topics brochures of current health recommendations without instructions or specific goal setting.Counseling for home-based walking plus exercise targeting functional limitations, goal of exercising for 20 mins or more 3–5 times per weekThe counseling in the intervention group increased the weekly frequency and minutes of walking and strength exercise and more frequent physical activity.

Tan et al. 2009 [56]Analysis of data from a longitudinal observational studyAfrican American womenBaltimore EC program65–86 yrs.I = 71
C = 150
3 yearsNo participation in EC programExperience Corps (EC) volunteeringSustained increase in physical activity;
significant increase in walking for exercise

Phillips et al. 2010 [57]Randomized control trialOlder individuals at risk for mobility disability;
~15% AA
University and community centers70–89 years old424
I = 213
C = 211
1.2 years“Successful aging” health educationMultimodel physical activity intervention;
walking and strength, balance, and flexibility exercises
Participants who were never medically suspended (NMS) and those who were suspended but returned (SR) improved a lot.

KKW: kilocalories per kilogram of body weight per week, QOL: quality of life, MET: metabolic equivalent hours per week, EC: experience corps, NMS: never medically Suspended, SR: medically suspended but returned.