BioMed Research International / 2015 / Article / Tab 1 / Review Article
Effects of Light Intensity Activity on CVD Risk Factors: A Systematic Review of Intervention Studies Table 1 Summary of included studies, sorted by disease status and duration of intervention.
Study reference Disease status Duration of intervention Weight status (based on mean BMI) Study design Sample size = LIPA group (total) Age range (mean ± SD) Baseline activity level Modality of intervention Downs and Black Score Study quality [56 ] No 9 mo No data RCT 33 (72) 60–81 (63.9 ± 3.9) No data Laboratory-based 17 Fair [26 ] No 24 wk Overweight RCT 12 (36) 18–45 Sedentary Free-living 16 Fair [30 ] No 16 wk Obese RCT 6 (25) (52.8 ± 7.2) Sedentary Free-living 19 Fair [28 ] No 16 wk Overweight RCT 17 (51) 20–50 Sedentary Laboratory-based 19 Fair [27 ] No 16 wk Overweight RCT 17 (51) 20–50 Sedentary Laboratory-based 19 Fair [29 ] No 16 wk Overweight RCT 17 (51) 20–50 Sedentary Laboratory-based 19 Fair [53 ] No 12 wk No data NRCT 10 (26) (25 ± 2.5) No exercise habit Laboratory-based 15 Low [32 ] No 10 wk Overweight RCD 39 ≥55 Sedentary Laboratory-based 21 Fair [55 ] No 7 wk No data RCT 9 (24) 18–30 Untrained Laboratory-based 17 Fair [35 ] No 5 d Overweight RCD 23 35–65 (48.2 ± 7.9) Sedentary Laboratory-based 21 Fair [57 ] No 4 d Normal RCD 18 (21 ± 2) Physically inactive Laboratory-based 18 Fair [63 ] No ~238 min No data RCD 13 (23.8 ± 0.9) Physically active Laboratory-based 19 Fair [54 ] No ~214.5 min Normal RCD 9 (24.0 ± 4.0) Recreationally active Laboratory-based 17 Fair [49 ] No 120 min No data RCD 12 (25.8 ± 1.2) Regular physical activity Laboratory-based 14 Low [50 ] No 120 min Normal Case series 22 18–23 Regular structured running Laboratory-based 13 Low [44 ] No 120 min No data RCD 6 (25 ± 2) Moderately trained Laboratory-based 15 Low [47 ] No 90 min Normal RCD 12 (29.5 ± 6.2 male; 24.3 ± 1.4 female) Recreationally active Laboratory-based 15 Low [46 ] No 90 min No data RCD 12 (28.2 ± 1.5) Recreationally active Laboratory-based 15 Low [51 ] No 45 min Normal URCT 22 (23.22 ± 2.88) Runners (<5 miles/wk) Laboratory-based 15 Low [37 ] No 40 min Overweight RCD 12 (46.2 ± 1.1) Sedentary Laboratory-based 20 Fair [45 ] No 35 min Normal RCD 14 (25.4 ± 1.8) Endurance trained Laboratory-based 16 Fair [40 ] No 28 min Overweight RCD 10 (24 ± 3) No data Laboratory-based 18 Fair [38 ] No 28 min Obese RCD 19 45–65 Physically inactive Laboratory-based 24 High [39 ] No 28 min Obese RCD 19 45–65 Physically inactive Laboratory-based 22 High [52 ] No 15 min Normal RCD 6 22–39 (32 ± 4) Athletes Laboratory-based 15 Low [48 ] No 5 min No data RCD 6 (23.5 ± 0.9) Sedentary Laboratory-based 14 Low [31 ] HPN 12 wk Obese RCT 20 (40) 45–65 Sedentary Free-living 20 Fair [41 ] DM2 12 wk No data RCT 29 (59) (60 ± 10) No data Laboratory-based 14 Low [42 ] CHF 8 wk No data RCT 7 (21) (58 ± 3) Habitually active Laboratory-based 16 Fair [33 ] GDM 6 wk Obese Case control 10 (30) (33.4 ± 3.3) No data Free-living 16 Fair [34 ] Colon Cancer 2 wk Overweight RCT 10 (23) 59–67 No data Laboratory-based 14 Low [36 ] MS ≈103 min Obese RCD 14 (43 ± 9) Physically inactive Laboratory-based 16 Fair [43 ] HIV infected 60 min No data RCT 11 (38) (42.9 ± 7.5) Exercise-naive Laboratory-based 18 Fair
BMI: body mass index; DM2: diabetes mellitus type 2; GDM: gestational diabetes mellitus; HIV: human immunodeficiency virus; HPN: hypertension; LIPA: light intensity physical activity; min: minute; mo: month; MS: metabolic syndrome; NRCT: nonrandomized controlled trial; RCD: randomized cross-over design; RCT: randomized controlled trial; URCT: uncontrolled randomized clinical trial; wk: week. Physical inactivity is defined as not meeting at least 150 minutes of moderate intensity physical activity or 75 minutes of vigorous intensity physical activity. Compared to a control group with no prescribed activity. Compared to a sitting group. Disease status and baseline activity level (using the terminology of the primary study) presented were as per inclusion criteria.