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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 Means

Unadjusted 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)

Baseline

3.0 (3.7)

1.8 (3.0)

   

Four months

0.4 (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)

Baseline

8.4 (0.8)

8.4 (0.7)

   

Four months

9.5 (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)

Baseline

58.2 (33.2)

52.6 (35.2)

   

Four months

48.7 (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)

Baseline

25 (4.2)

25.3 (3.9)

   

Four months

24.6 (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)

Baseline

121.2 (15.5)

122.2 (13.9)

   

Four months

116.9 (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)

Baseline

76.8 (9.3)

76.6 (10.8)

   

Four months

75.4 (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)

Baseline

75.2 (11.6)

77.5 (11)

   

Four months

69.5 (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)

Baseline

19.7 (3.7)

20.1 (3.7)

   

Four months

19 (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 (%)

Baseline

97.8 (1.2)

97.8 (1.1)

   

Four months

98.2 (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)

Baseline

7.2 (0.8)

7.2 (0.8)

   

Four months

6.1 (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
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