The problem AI-Physiotherapist solves

Joint problem is very common in these times specially in senior citizens.Physiotherapy are costly hence people take it for few days,but the patients need to exwercise for a long time. This python application assists people with bone- joints problem to take physiotherapy from the comfort of their home.It can act as extended intructor at home without any actual paid instructor.
This python application detects the angle made by the patient by bend their legs.If the patients bends at less than 90 degrees the timer starts.Patient has to hold the bent position for 8 sec then relax the leg,this completes one rep count.If the patient fails to hold for 8 sec timer stops in between and rep count fails.

Challenges I ran into

Calculating the angle and starting/stopping the timer according it was challenging.Timer has to start when the patient bends the leg at an angle which is less than a specific angle(here 90 degress with .Timer has to stop in between if the patient fails to hold the bend angle for 8 sec.