_____________________________________________________________________________________________________ # Associate Professor; *Corresponding author: E-mail: sakshikariya07@gmail.com; Journal of Pharmaceutical Research International 33(49A): 8-13, 2021; Article no.JPRI.74798 ISSN: 2456-9119 (Past name: British Journal of Pharmaceutical Research, Past ISSN: 2231-2919, NLM ID: 101631759) Sub Occipital Muscle Inhibition Technique Verses Cranial Cervical Flexion Exercise for Increasing Hamstring Flexibility in Physiotherapy Students Sakshi K. Kariya 1 , Waqar M. Naqvi 2* , Om Wadhokar 3 and Pratik Phansopkar 3# 1 Ravi Nair Physiotherapy College, DattaMeghe Institute of Medical Sciences (DU), Sawangi (Meghe), Wardha Maharashtra– 442001, India. 2 Department of Community Health Physiotherapy , Ravi Nair Physiotherapy College, Datta Meghe Institute Of Medical Sciences (DU), Sawangi (Meghe), Wardha Maharashtra- 442001, India. 3 Department of Musculoskeletal Physiotherapy, Ravi Nair Physiotherapy College, Datta Meghe Institute of Medical Sciences, Sawangi (M), Wardha, India. Authors’ contributions This work was carried out in collaboration among all authors. All authors read and approved the final manuscript. Article Information DOI: 10.9734/JPRI/2021/v33i49A33295 Editor(s): (1) Syed A. A. Rizvi, Nova Southeastern University, USA. Reviewers: (1) Mohamed Atif A Said Ahmed, Zagazig University, Egypt. (2) Ghada Ebrahim El Refaye, Cairo University & Pharos University, Egypt. Complete Peer review History: https://www.sdiarticle4.com/review-history/74798 Received 10 August 2021 Accepted 19 October 2021 Published 11 November 2021 ABSTRACT Background: Variation in flexibility can put an unusual amount of annoyance on the framework of the musculoskeletal system. The hamstring muscles are restricted when they are short, which can interfere with everyday activities and is usually a cause for concern. The flexibility of the hamstrings increases as the suboccipital muscles' tone deteriorates,, which are is single neuronal pathway that goes through the dura mater and connects them and which is called as the superficial back line (SBL). Hence as an intervention suboccipital muscle inhibition technique and cranial cervical technique is less time and energy consuming with efficient amount of results. Aim and Objective: The aim of this study is to investigate the effect of suboccipital muscle inhibition technique verses cranial cervical technique for increasing hamstring flexibility. Methods: Here we will evaluate hamstring tightness and impact of suboccipital muscle inhibition technique verses cranial cervical technique as an intervention with duration of 2 weeks. As an Study Pre-Protocol