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. 2020 Aug 5;12(1):8–14. doi: 10.1177/2192568220944129

Table 3.

Modified Lower Extremity Motor Testing Scale for Telemedicine.

Muscle group Nerve root Strength Description
Iliopsoasa L1, L2, L3 0 Absence of any muscle activation
1 Able to flex hip against gravity (allow knee to passively flex, chair for balance)
2 Able to flex hip against gravity, and maintain (allow knee to passively flex, chair for balance)
3 Difficult to assess; can consider full strength if flex hip against gravity and maintain without difficulty
Quadricepsb L2, L3, L4 0 Absence of any muscle activation
1 Able to perform a single leg raise from chair with support
2 Able to perform a single leg raise from chair without support, moderate difficulty
3 Difficult to assess; can consider full strength if able to perform a single leg raise from a chair without support or perceived difficulty
Tibialis anterior L4 0 Absence of any muscle activation
1 Able to raise onto heels, unable to maintain
2 Able to raise onto heels and maintain this position for 10 seconds
3 Difficult to assess; can consider full strength if able to raise onto heels and perform lateral walks for 10 paces
Gastrocnemius-soleus complex S1 0 Absence of any muscle activation
1 Able to raise onto toes, unable to maintain
2 Able to raise onto toes (raise heels) and perform 10 heel raises, with some difficulty
3 Difficult to assess; can consider full strength if able to perform 10 repetitions of heel raises without perceived difficulty

a May be performed in seated position if patient unable to balance.

b If unable to perform single leg raise, may perform knee extension and attempt to maintain against gravity