Blood samples of patients will be collected from patients in the early morning (7:30-9:00 a.m.) after an overnight fast at T0 and at T1. Sera samples will be separated by centrifugation (3,000 rpm, 10 min, and 4 °C), divided into 0.5 mL aliquots, and rapidly stored at -80 °C. Subjects' and reference samples were thawed just before the diagnostic test.

bioimpedentiometric analyses of muscular mass (T0 and T1), muscular force with hand grip

nutritional status assessment will be performed by: body mass index measurements, (height and weight measurements at T0 and at T1); a Mini Nutritional Assessment survey will be administered to patients at admission; a food questionnaire will be administered to patients during from T0 to T1.

stool will be collected at T0 and at T1

the first morning urine will be collected at T0 and at T1

indirect calorimetry analysis with K5 (COSMED, Italy) during six minute walk test or timed up and go test.

blood measurements of haemoglobin (g/dL)

blood measurements of total lymphocyte in count of cells or percentage

serum measurements of albumin in g/dL

serum measurements of glucose in mg/dL

serum measurements of triglycerides in mg/dL

serum measurements of total cholesterol in mg/dL

serum measurements of HDL cholesterol in mg/dL

serum measurements of calcium in mg/dL

serum measurements of magnesium in mg/dL

is a nutritional scoring tool that is calculated using serum albumin, total cholesterol level, total lymphocyte count

is an index calculated from Lorentz' standardized weight and albumin

it is a test to measure the maximum isometric strenght of the hand and forearm muscles

The Time Up And Go is a test used to assess mobility, balance, and walking in people with balance impairments. The subject must stand up from a chair (which should not be leant against a wall), walk a distance of 3 meters, turn around, walk back to the chair and sit down - all performed as quickly and as safely as possible. Time will be measured using a chronometer.

The MASA consists of 24 items, and each measured score is converted into a weighted 5 or 10 points, which are then summed to a 200-point maximum score. The total scores are then used to define four categories of aspiration risk, as follows: 170-200, no abnormality; 149-169, mild; 141-148, moderate; ≤140, severe. The MASA score was evaluated by expert speech-language-hearing therapists within three days after admission.

the Functional Oral Intake Scale (FOIS) assess a patient's food swallowing capability. This tool is designed to measure the effectiveness of a patient's oral intake.The FOIS has seven levels, each denoting a different type of oral intake ability.

ITUBE DEPENDENT (levels 1-3)

1. No oral intake
2. Tube dependent with minimal/inconsistent oral intake
3. Tube supplements with consistent oral intake TOTAL ORAL INTAKE (levels 4-7)
4. Total oral intake of a single consistency
5. Total oral intake of multiple consistencies requiring special preparation
6. Total oral intake with no special preparation, but must avoid specific foods or liquid items
7. Total oral intake with no restrictions

The BI is designed to assess the ability of an individual with a neuromuscular or musculoskeletal disorder to care for him/herself. It ranges from 0 to 100, with a higher number meaning better performance in activities of daily living.

The FMA-UL is a stroke-specific, performance-based impairment index. It is designed to assess motor functioning, sensation and joint functioning in patients with post-stroke hemiplegia. The upper limb portion of the FMA-UL ranges from 0 (hemiplegia) to 66 points (normal upper limb motor performance)

The MI aims to evaluate lower limb motor impairment after stroke, administrated on both sides.

Items to assess the lower limbs are 3, scoring from 0 to 33 each: (1) ankle dorsiflexion with foot in a plantar flexed position (2) knee extension with the foot unsupported and the knee at 90° (3) hip flexion with the hip at 90° moving the knee as close as possible to the chin. (no movement: 0, palpable flicker but no movement: 9, movement but not against gravity :14, movement against gravity movement against gravity: 19, movement against resistance: 25, normal:33).

The Numeric Rating Scale (NRS) is the simplest and most commonly used numeric scale to rate the pain from 0 (no pain) to 10 (worst pain).

The DN4 used to evaluate presence of neuropathic pain, and consist of a brief interview of four questions answered yes/no: two on what the patient has conceived and two during the exam for the evaluation of hypoesthesia to the touch or sting and the evaluation of allodynia with the skimming of the skin. For each 'yes' a point is assigned. The total score is given by the sum of the individuals. The cut off for the presence of neuropathic pain is '4'.

The MAS is a 6 point ordinal scale used for grading hypertonia in individuals with neurological diagnoses. A score of 0 on the scale indicates no increase in tone while a score of 4 indicates rigidity. Tone is scored by passively moving the individual's limb and assessing the amount of resistance to movement felt by the examiner.

This test will assess the patient's speed during gait. Patients will be asked to walk at their preferred maximum and safe speed. Patients will be positioned 1 meter before the start line and instructed to walk 10 meters, and pass the end line approximately 1 meter after. The distance before and after the course are meant to minimize the effect of acceleration and deceleration. Time will be measured using a stopwatch and recorded to the one hundred of a second (ex: 2.15 s). The test will be recorded 3 times, with adequate rests between them. The average of the 3 times should be recorded.

The 6MWT measures the distance a subject covers during an indoor gait on a flat, hard surface in 6 minutes, using assistive devices, as necessary. The test is a reliable and valid evaluation of functional exercise capacity and is used as a sub-maximal test of aerobic capacity and endurance. The minimal detectable change in distance for people with sub-acute stroke is 60.98 meters. The 6MWT is a patient self-paced walk test and assesses the level of functional capacity. Patients are allowed to stop and rest during the test. However, the timer does not stop. If the patient is unable to complete the test, the time is stopped at that moment. The missing time and the reason of the stop are recorded. This test will be administered while wearing a pulse oximeter to monitor heart rate and oxygen saturation, also integrated with Borg scale to assess dyspnea.

The Functional Ambulation Categories (FAC) is a 6-point functional walking test that evaluates ambulation ability, determining how much human support the patient requires when walking, regardless of whether or not they use a personal assistive device.

A pinch grip is a form of precision grip whereby a Pinch dynamometers is pinched in three ways.

The Montreal Cognitive Assessment (MoCA) was designed as a rapid screening instrument for mild cognitive dysfunction. It assesses different cognitive domains: attention and concentration, executive functions, memory, language, visuoconstructional skills, conceptual thinking, calculations, and orientation. Time to administer the MoCA is approximately 10 minutes. The maximum possible score is 30 points.

The subject is given a sheet of paper at the top of which is printed the key (9 abstract symbols and 9 corresponding numbers). The key is available to the subject throughout the test. A sequence of 120 symbols, each printed in a square, is presented below the key. Empty squares are located below the squares containing the symbols. In the oral version, the examiner, on a copy of the test sheet, records in the empty squares the numbers the subject associates, orally, with the symbols. The subject has to make as many associations as possible within the 90-sec time limit. The score is the number of correct associations made by the subject.

Kinematic information recorded during the administration of the Evaluation Task provided by Motore, based on a center-out point-to-point reaching activity. The kinetics of the end-effector of the robot will be measured by the robot during reaching tasks performed by the patient against the device. The outcome will be the maximum values towards 8 targets.

dROMs test measures circulating hydroperoxides (UCarr)

BAP test measures total antioxidant status in serum in micromol/L

LP-cholox test measure the lipidic peroxidation (micromol/L)

analysis of Next generation sequencing of 16S rDNA metabarcoding and shotgun metatrascriptomic of stool sample

ELISA analysis of sieric Intestinal fatty acid binding protein (I-FABP)

ELISA analysis of sieric zonuline

ELISA analysis of sieric diaminoxidase (DAO)

ELISA analysis of sieric Lipopolysaccharide (LPS)

analysis of volatile organic compounds (VOCs) and fecal zonuline in stool

chromatographic with fluorimeter analysis of indole levels in urine

analysis of volatile organic compounds (VOCs) in urine