Implementation of expert systems to support the functional evaluation of stand-to-sit activity

Table 2 Model of production rules of protocol to support the evaluation of stand-to-sit activity on LV

RULE NUMBER	RULE
1	if
	P1 R Knee == Neutral position
	then
	IP R Knee ← Neutral
2	if
	P1 R Knee <> Neutral position
	then
	IP R Knee ← Not neutral
3	if
	P1 == 0; P2 == 0; P3 == 0; P4 == 0
	then
	R Knee Condition ← "Adequate"
4	if
	P1 == 0; P2 == 0; P3 == 0; P4 == 1
	then
	R Knee Condition ← "Inadequate Level I"
5	if
	P1 == 0; P2 == 0; P3 == 1; P4 == 1
	then
	R Knee Condition ← "Inadequate Level II"
6	if
	P1 == 1; P2 == 1; P3 == 1; P4 == 0
	then
	R Knee Condition ← "Inadequate Level III"
7	if
	P1 == 1; P2 == 1; P3 == 1; P4 == 1
	then
	R Knee Condition ← "Inadequate Level IV"

The conclusions are shown based on their respective assumptions. For example, consider the rule 6. P1, P2, P3 and P4 mean the phases of the activity (as presented in the Table 1). The “0” value means the normal condition and value “1” means other than what is expected based on the literature. The rule conclusion (R Knee Condition ← “Inadequate Level III”) means that the knee condition has a level of inadequacy equal to III.

ISSN: 1475-925X