The duration of the sessions will depend on the nature of the condition being treated and the intervention required. Hand therapy: 1.5-2hours. Neurological: 45 -60 minutes – depending on their tolerance. Industrial rehabilitation: 2-6 hours The number of sessions will also depend on the nature of the condition and the progress being made towards the goals. Frequent reassessments are being made to determine the efficacy of treatment. Work hardening clients are usually in therapy for 4-6 weeks.