Effects of a Wearable Device ,Phone App and Exercise on Cervico-thoracic Posture in University Students.

Overview

Forward head posture and thoracic kyphosis are among the most common postural problems in university students, driven largely by long hours of screen use and poor sitting habits. Research suggests that nearly two-thirds of university students show measurable forward head posture, and if uncorrected, it is linked to chronic neck pain and long-term musculoskeletal strain. This study compares three approaches to correcting posture over a six-week supervised exercise program: a wearable sensor belt that vibrates in real time when posture slips, a smartphone app that sends scheduled reminders throughout the day, and exercise alone with no reminders. The two technology-assisted groups are prompted to correct their posture throughout daily activities, not just during exercise sessions. The study will show whether real-time or scheduled reminders produce greater improvements in posture, neck pain, and neck function than exercise alone . Helping physical therapists and university health services to identify the most practical strategy for correcting posture in screen-heavy academic environments.

Forward head posture(FHP) and thoracic kyphosis are increasingly prevalent among university students due to sustained flexed-neck postures during smartphone use, laptop-based study, and prolonged sitting. Chronic FHP alters the normal cervical lordotic curve, increases mechanical loading on cervical spine structures, and has been associated with muscular imbalance, cervicogenic pain , and headache. Conventional postural correction exercise programs are well established, but adherence to postural correction outside of supervised sessions remains a key limitation. Students are typically unaware of their posture lapsing during daily activities such as studying, phone use and prolonged sitting and correction cues are usually absent outside the clinical or exercise setting. Technology-assisted feedback systems have emerged as a potential solution to this adherence gap. Wearable biofeedback devices provide immediate, real-time correction cues when a threshold postural deviation is detected, theoretically reinforcing correct postural habits through continuous behavioral conditioning. App-based reminder systems, offers a scheduled, intermittent prompts rather than continuous monitoring , it is more practical and scalable given lower cost and no specialized hardware requirement. This three arm, parallel group randomized controlled trial is designed to generate comparative evidence on the relative effectiveness of continuous biofeedback, scheduled reminders, and conventional exercise therapy alone, in order to inform evidence-based, resource-appropriate postural correction strategies for university and academic health settings. The results of this trial are intended to directly inform clinical decision-making for physiotherapists and university wellness programs considering adoption of wearable or app-based postural correction tools. Should either technology-assisted approach demonstrate superiority over conventional exercise alone, this would support integration of low-cost, scalable postural feedback technology into standard student musculoskeletal health programs. Conversely, if outcomes are comparable across groups, this would support conventional supervised exercise as a sufficient, lower-cost first-line approach, without the added expense or complexity of technology-assisted feedback devices. University students represent a population with high daily screen-time exposure and sedentary study behavior, making them broadly representative of the wider demographic at risk for posture-related cervical musculoskeletal strain seen in academic and early-career professional environments. Evidence generated from this population is expected to have relevance beyond the immediate study setting, informing postural health strategies applicable to similarly screen-intensive occupational and educational contexts.