User Satisfaction with Luminaire Retrofit in a Fitness Center for Personal Training

The impact of luminaire retrofits on user satisfaction was evaluated in a small fitness center focused on personal training (PT). The average illuminance before the luminaire retrofit was measured at 135㏓, which did not meet KS A 3011 standards for fitness center illuminance(150–300㏓), resulting in insufficient brightness, shadows, and glare that negatively impacted the exercise environment. To address these issues, LED linear pendant luminaire was installed to provide more uniform light distribution, and color-adjustable LEDs were added to promote recovery and reduce stress during rest periods. Lighting simulations using Relux software predicted an increase in illuminance to 685㏓, meeting the European standard for fitness centers (EN 12193). Post-luminaire retrofit measurements taken at 25 locations showed an average illuminance of 846lx, closely matching the simulation’s predictions. A survey of 70 participants aged 20 to 60 revealed improvements in positivity, spatial awareness, safety, and cognitive performance. However, some participants reported increased glare. The contrast between the luminaire and the black ceiling, particularly over lying equipment such as the bench press, was believed to have intensified the lighting effect, making it feel overly harsh. Optimized luminaire has been shown to significantly enhance the exercise experience, helping users feel safer and more motivated.