Analysis of Kitchen Working Posture of the Elderly Based on RULA Method
With long time and high frequency in the kitchen at home,the poor working postures for the elderly can easily lead to damage to the health.Based on Rapid Upper Limb Assessment(RULA)method,this paper analyzed the postural load and risk rating of various parts of the body during kitchen work for the elderly,and quantified the RULA score and the angle change data of the main body parts under three kitchen operations:washing,chopping and cooking.The results showed that the RULA scores of the upper limbs and trunk during dish washing are(4.29±0.6)and(4.57±0.5)respec-tively,with a greater amplitude of trunk leaning forward and arm swinging forward,indicating that both the upper limbs and trunk are at a higher risk of load and fatigue,and it is recommended that the height of the sink counter should be im-proved to reduce trunk flexion.The RULA score for the upper limb during chopping is(4.14±0.7),which indicates that the upper limb is at a higher risk of fatigue,and it is recommended that the height of the preparation worktop should be improved to reduce the upper limb abduction;the RULA score for the upper limb during roasting is(5.50±1.0),which indicates that the upper limb is at a higher risk of fatigue,as the upper arm is swinging forward and the upper arm is ab-ducted.It is recommended to reduce the upper arm swing by improving the height of the cooker.
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