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Effects of Photobiomodulation and Electrical Stimulation Among Bell's Palsy Patients
Sponsor: Lahore University of Biological and Applied Sciences
Summary
Despite promising evidence supporting both photobiomodulation (PBM) and electrical stimulation (ES) in Bell's palsy rehabilitation, key gaps remain in the literature. Few studies have directly compared these modalities under standardized conditions, especially while keeping facial exercises constant across groups. Inconsistent treatment parameters such as variations in PBM wavelength or ES intensity limit the comparability and replication of existing findings. Additionally, many studies rely on subjective outcome measures and lack structured timelines for assessing facial symmetry, neuromuscular coordination, or long-term recovery, including complications like synkinesis. These limitations highlight the need for a well-controlled comparative study to determine the more effective modality when paired with consistent facial rehabilitation exercises.
Official title: Comparative Effect of Photobiomodulation and Electrical Stimulation on Facial Disability Among Bell's Palsy Patients
Key Details
Gender
All
Age Range
18 Years - 64 Years
Study Type
INTERVENTIONAL
Enrollment
34
Start Date
2025-11-25
Completion Date
2026-05-25
Last Updated
2025-12-05
Healthy Volunteers
No
Conditions
Interventions
Photobiomodulation alongwith facial exercise
The intervention phase will last for 5-6 weeks, with participants receiving treatment 4-5 times per week, each session lasting 30-40 minutes, under therapist supervision. PBM therapy will be administered using a low-level laser therapy (LLLT) device, with appropriate settings (e.g., wavelength, energy density, and duration). Each session will focus on treating the affected facial regions. Facial Exercise will include manual therapy aimed at improving facial muscle tone, mobility, and circulation, customized for Bell's Palsy.
Electrical Stimulation alongwith facial exercise
The intervention phase will last for 5-6 weeks, with participants receiving treatment 4-5 times per week, each session lasting 30-40 minutes, under therapist supervision. EMS will be applied to the affected facial muscles using appropriate device settings. The therapy will focus on stimulating motor function and improving muscle tone. Facial Exercise will be performed as described above in Group 1 to aid in relaxation and muscle tone restoration.