All the participants in the low-intensity resistance exercise with blood flow restriction group (L-BFR) will receive 3 sessions of low-intensity resistance training with blood flow restriction for a total of 5 weeks.

All the participants in the high-intensity resistance exercise without blood flow restriction group (H-BFR) will receive 3 sessions of high-intensity resistance training without blood flow restriction for a total of 5 weeks.

The blood flow restriction training group will perform 3 sets of Sandbag (SB) resistance exercises, targeting the large muscles of the legs, at 40% of 1-RM. The SB protocol consists of 3 sets of 4 SB exercises. Each set consists of 10 repetitions of 1-RM with a 1-min recovery interval between sets and 3-min between exercises. Blood flow to the active muscle during training will be restricted by a blood flow restriction band (tourniquet) placed at the proximal end of the lower limbs. When the subjects performed training with BFR, the proximal portions of their lower limbs will be compressed at the pressure of 120-160 mmHg by electronically controlled air pressure belts. The air pressure belt will be inflated before the exercise and will remain inflated during one-minute intervals between the sets and will be deflated during the three-minute interval between the exercise.

Five time sit to stand test will be used to assess lower extremity muscle strength, balance and risk of fall in stroke patients. The test measure amount of time taken to complete five repetitions of sit to stand task. The test will be performed with standard height chair without an armrest and with straight back (43-45 cm high). He patients will be instructed to stand up and sit down as quickly as possible 5 times, keeping their arms folded across their chest. Timing began when the patient's back left the backrest and stopped once the back touched the backrest for the fifth time.

The Comfortable 10-m Walk Test (10 MWT) will be used to determine the speed of comfortable walking. The test will be applied in a 14-m corridor. The patients will be instructed to walk comfortably and allowed to use walking aid. At the 2nd meter, the stopwatch will be started and stopped when the patient reached the 12th meter. Walking time and number of steps will be assessed to calculate gait speed (m/s), stride length (m), and cadence (steps/min). After three trials, the average of the three trials will be recorded as m/s.

The Timed Up & Go test is a functional mobility test used to assess dynamic balance, transfer, and gait. The patient is instructed to stand up from a chair (46 cm high) with support for the arms, walk for a short distance (3 m), turn, go back and sit down as quickly as possible. The stopwatch will be used to measure the time to perform these tasks from start to end. The patients will be allowed to use their walking aids. After three trials, the average of the three trials will be recorded.

The walking distance will be measured by the 6 Minute walk Test (6MWT), the most commonly used for measuring the physical performance of individuals after stroke. The patients will be asked to walk as far as possible throughout the 30-meter course within 6 minutes by following the standardized instructions provided by the physiotherapist. Participants will be allowed by the physiotherapist to use aiding device if necessary. Physiotherapist will guard the participants during the walk test but will not offer any assistance or support to the participant.

The Hospital Anxiety and Depression Scale (HADS) is a fourteen-item scale scoring from 0 to 3 for each item. The first seven items relate to anxiety (HADS-A), and the remaining seven items relate to depression (HADS-D). The global scoring ranges from 0 to 42 with a cut-off point of 8/21 for anxiety and 8/21 for depression. The higher the score, the greater anxiety or depression symptoms. HADS will be performed at the beginning and after four weeks of treatment.