## 2 Materials and Methods
### Procedures  
Patients performed the LEMOCOT [17], as well as 5 other valid and reliable instruments, on the same day in the outpatient neurology clinic. Specifically, the Five-Repetition Sit-to-Stand test (FSTS) [21] was performed after the LEMOCOT. The patients then filled in the following scales with clarifications provided by either of the examiners administering the scales at the time: (a) the Berg Balance Scale (BBS) [22; 23] and (b) the Lower Extremity Functional Scale (LEFS) [24]; (c) the Mini-Mental State Evaluation (MMSE) was completed only for patients as deemed necessary by the principal investigator ([PERSON]) and their attending physician ([PERSON]) (\(n=42\)), with the rest of participants given the score corresponding to healthy individuals (\(n=18\)). The order of performing the tests and completing the scales was always the same [25]. Finally, the results of the Expanded Disability Status Scale (EDSS) evaluation were recorded from the patient's history. This history was taken by their treating neurologist and the principal investigator. In addition, information regarding the participant's living environment (living alone or not) was collected.  
Reliability measurements were conducted by a physiotherapist (D.Z.--examiner 1) and a physical medicine and rehabilitation doctor (M.M.--examiner 2), in a randomized order for participants that were assessed by both examiners. Of the 60 participants, 45 were assessed by both examiners on the same day, with a 30-min time interval (within-day inter-rater reliability). Additionally, 12 participants were assessed twice on the same day with a 30-min time interval by the same examiner (within-day intra-rater reliability). Finally, reliability was examined in 22 patients by both examiners with a 4-week time interval between measurements (between-days inter-rater reliability). The initial aim was to reassess all participants, which was not procedurally feasible for the clinic routine, so those who were re-examined in the outpatient clinic within the measurement period were re-evaluated on a second day. The LEMOCOT test was performed first with the dominant and then with the non-dominant LL. In order to minimize fatigue, the test was carried out in the morning to early afternoon, usually 9.00 am-1.30 pm.  
To perform the LEMOCOT test, 2 targets--one central and one more distant--were placed 30 cm apart, attached to a thin piece of rigid foam on the floor (50 \(\times\) 55 \(\times\) 0.8 cm). The 2 targets had a red color and a diameter of 6 cm (Figure 1) [16; 17].  
Participants were placed in a comfortable sitting position on a chair, without shoes. Their knees were bent at about 90\({}^{\circ}\), the soles of their feet were in contact with the floor, and the heel of the LL under examination was initially placed on the proximal target. This position was varied according to the person's height so that there was the same distance for each participant at 30 cm [14; 15; 16; 17; 25]. In order to start the test, the patient's big toe was placed on the central target. Then, they had to alternately touch with the tip of their big toe the central and the farthest targets for 20 s.  
Figure 1: Setup for conducting the LEMOCOT.  
The instruction was to move their foot as quickly as possible and touch the targets with the greatest possible accuracy. The number of targets sequentially touched in 20 s was recorded [12; 16; 25]. Participants were instructed not to decrease the level of accuracy or movement quality to increase speed [14; 15; 16; 25]. If the big toe did not touch the target, the target was not recorded. The initial toe placement on the proximal target was not counted [16; 25]. A test trial was performed with the dominant LL for 5-10 s, and then the test was performed with the dominant LL for 20 s, and then with the non-dominant LL for another 20 s [14; 16; 17; 25].