Table 4.

Reported occupational tasks and activities as causes or aggravating factors for musculoskeletal complaints in specific body regions among bricklayers and supervisors participating in a baseline and follow-up survey

Activity	Body region no 1	Body region no 2	Body region no 3
Standing
Bricklayers	Foot	Lower leg/ankle	Upper leg
Construction supervisors	Upper leg	Hip	Back
Walking across the construction site
Bricklayers	n.a.	n.a.	n.a.
Construction supervisors	Upper leg	Lower leg/ankle	Knee
Kneeling and stooping
Bricklayers	Knee	Upper leg	Lower leg/ankle
Construction supervisors	Knee	Upper leg	Hip
Working with a bent back
Bricklayers	Back	Hip	Upper leg
Construction supervisors	Back	Upper leg	Hip
Carrying and lifting
Bricklayers	Back	Upper leg	Elbow
Construction supervisors	Lower arm/wrist	Back	Upper leg
Repetitive arm -hand movements
Bricklayers	Elbow	Lower arm/wrist	Shoulder/upper arm
Construction supervisors	Elbow	Lower arm/wrist	Hand
Working above shoulder height
Bricklayers	Shoulder/upper arm	Neck	Elbow
Construction supervisors	Shoulder/upper arm	Neck	Lower arm/wrist
Working with vibrating hand tools
Bricklayers	Elbow	Hand	Shoulder/upper arm
Construction supervisors	Hand	Lower arm/wrist	Back
Climbing ladder/scaffold
Bricklayers	Upper leg	Lower leg/ankle	Foot
Construction supervisors	Upper leg	Knee	Lower leg/ankle
Driving vehicles
Bricklayers	Lower leg/ankle	Foot	Hand
Construction supervisors	Neck	Back	Hip

n.a. not applicable, bricklayers were not asked about the activity ‘walking’.

The top-three body regions for every activity are presented.