Skip to main content

Table 4 Results of intervention on the secondary outcomes: physical activity level, perceived risk factor, physical fitness, and productivity at baseline and four months (n = 204)

From: Effectiveness of a progressive resistance exercise program for industrial workers during breaks on perceived fatigue control: a cluster randomized controlled trial

Secondary Outcomes Groups’ Unadjusted MeansUnadjusted Within-Group Differences, 95% CI
[Baseline minus four months]
Between-Group Adjusted Mean Differences, 95% CI
 Intervention
(n = 98)
Control
(n = 106)
Intervention
(n = 98)
Control
(n = 106)
Pain intensity (0–10 points)Baseline3.0 (3.7)1.8 (3.0)   
Four months0.4 (1.4)1.3 (2.6)2.6a
(1.9 to 3.3)
0.5a
(0.1 to 0.9)
2.13b
(1.4 to 3.0)
Physical activity levelc
(0–10 points)
Baseline8.4 (0.8)8.4 (0.7)   
Four months9.5 (0.6)9.5 (0.7)−1.1 a
(−1.2 to −1.0)
−1.1 a
(−1.2 to −1.0)
0 (−0.1 to 0.1)
Perceived risk-factors for musculoskeletal pain (0–150 points)Baseline58.2 (33.2)52.6 (35.2)   
Four months48.7 (25.7)44.4 (28.5)9.5 a
(8.2 to 10.8)
8.2 a
(6.93 to 9.47)
4.9 (−3.5 to 13.4)
Physical Fitness
 BMI (kg/m2)Baseline25 (4.2)25.3 (3.9)   
Four months24.6 (4.0)24.8 (3.7)0.4 a
(0.3 to 0.5)
0.5 a
(0.4 to 0.6)
0.2 (−1.3 to 0.8)
 Blood pressure systolic (mmHg)Baseline121.2 (15.5)122.2 (13.9)   
Four months116.9 (10.8)118.5 (8.5)1.2 a
(−1.8 to 4.4)
1.2 a
(− 1.8 to 4.4)
0 (−0.1 to 0.1)
 Blood pressure diastolic (mmHg)Baseline76.8 (9.3)76.6 (10.8)   
Four months75.4 (7.8)75 (9.8)1.5 a
(−0.8 to 2.2)
1.5 a
(− 0.8 to 2.2)
0.3 (−2.2 to 2.8)
 Heart rate (bpm)Baseline75.2 (11.6)77.5 (11)   
Four months69.5 (7.3)70.7 (6.7)6.2 a
(5.2 to 7.2)
7.2 a
(6.2 to 8.2)
1.7 (0.7 to 4.1)
 Respiratory rate (rpm)Baseline19.7 (3.7)20.1 (3.7)   
Four months19 (2.2)19.4 (2.2)0.7 a
(0.3 to 1.0)
0.5 a
(−0.1 to 0.9)
0.4 (−1.1 to 0.3)
 Oxygen saturation (%)Baseline97.8 (1.2)97.8 (1.1)   
Four months98.2 (0.7)98 (0.8)−0.3 a
(− 0.4 to − 0.2)
− 0.2 a
(− 0.3 to − 0.4)
0 (− 0.3 to 0.17)
 Productivity (0–10)Baseline7.2 (0.8)7.2 (0.8)   
Four months6.1 (0.7)6.0 (0.7)1.2 a
(1.2 to 0.9)
1.2 a
(1.2 to 0.9)
0 (− 0.1 to 0.1)
  1. aSignificant difference within groups (p < 0.05). bSignificant difference between groups (p < 0.05). cPhysical Activity Level = PAO + ESL + ELL (physical activity at occupation (PAO), sport and exercise in leisure time (ESL), and exercise in leisure and locomotion (ELL)). SD standard deviation, BMI body mass index, bpm beats per minute, rpm respirations per minute. There were no missing data