Dear Yash, because Physiotherapy uses 'evidence based practise' as the basis of its treatment, scientific and clinical research hold utmost importance in Physiotherapy. Clinical research helps Physiotherapist keep themselves updared with latest practices. You can absolutely take up clinical research or scientific research after Physiotherapy because this keeps you a step ahead of your peers. You can put this knowledge to practise either in the field of practising Physiotherapy or you can join as a Clinical researcher.