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Table 2 Results at baseline and four months for intervention and control groups (n = 204)

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

Primary Outcome MeasureGroups Unadjusted, Mean (SD)Unadjusted Within-Group,
Mean Difference (95% CI)
[Baseline minus four months]
Between-Group Adjusted, Mean Difference (95% CI)
Intervention
(n = 98)
Control
(n = 106)
Intervention
(n = 98)
Control
(n = 106)
 
Need for Recovery
0–100
Baseline68.4 (12.1)56.2 (10.9)   
Four months59.4 (8.7)51.7 (8.6)9.93 a
(7.3 to 12.5)
6.77 a
(5.78 to 7.75)
7.7
(−6.2 to 12.4)
Muscle Strength
1-RM (kg)
 BicepsBaseline16.6 (2.3)16.5 (2.5)   
Four months17.8 (2.5)17.8 (2.5)- 1.2 a
(− 1.4 to − 1.0)
- 1.3 a
(− 1.4 to − 1.0)
0.0
(0.0)
 TricepsBaseline11.1 (1.9)11.2 (2)   
Four months12.4 (2.2)12.3 (2)- 1.3 a
(−1.4 to − 1.0)
- 1.1 a
(− 1.4 to − 1.0)
0.0
(− 0.5 to 0.5)
 DeltoidBaseline8.8 (1.6)8.9 (1.4)   
Four months10 (1.9)10.1 (2)- 1.2 a
(−1.3 to − 1.0)
- 1.2 a
(− 1.3 to − 1.0)
0.1
(− 0.5 to 0.3)
 Quadriceps femoris and HamstringsBaseline27.4 (2.4)27.7 (2.3)   
Four months29.7 (3.4)30.3 (3.3)- 2.4 a
(− 2.7 to − 2.0)
- 2.6 a
(− 2.9 to − 2.3)
0.4
(− 1.1 to 0.2)
 Triceps suraeBaseline27 (2.4)27.4 (2.5)   
Four months29.1 (3.0)29..3 (3.0)- 2.1 a
(−2.2 to −1.7)
- 1.9 a
(− 2.2 to − 1.7)
0.2
(− 1.0 to 0.3)
  1. aSignificant difference between groups (p < 0.05); SD - standard deviation; 1 RM - one repetition maximum. There were no missing data