Akademik Veri Yönetim Sistemi
19. Uluslararası Fizyoterapide Gelişmeler Kongresi, Ankara, Türkiye, 9 - 11 Nisan 2025, ss.173-174, (Özet Bildiri)
Purpose: The viscoelastic properties of muscles influence muscle performance and joint stability. Body
mass index (BMI) is known to be associated with the viscoelastic properties of muscles. This study aims
to investigate the relationship between BMI and the viscoelastic properties of the quadriceps muscle in
individuals with high levels of physical activity (PA).
Methods: Thirty-two participants with a high level of PA (International Physical Activity Questionnaire-
Short Form score >3000 MET-min/week) were included in the study (age:21.41±1.45years,
8Male/24Female). BMI values were calculated (24.20±3.01kg/m²). The viscoelastic properties of both
vastus lateralis, vastus medialis, and rectus femoris muscles were assessed using MyotonPro® while
participants were in a supine position.
Results: A statistically significant correlation was found between BMI and the stiffness(N/m) of the
right and left vastus lateralis (p=0.007, r=0.464; p=0.008, r=0.461, respectively), the stiffness of the left
vastus medialis (p=0.003, r=0.502), and the elasticity(logarithmic decrement) of the left vastus medialis
(p=0.014, r=0.429). However, no significant relationship was observed between BMI and muscle
tone(Hz).
Conclusions: In individuals with high levels of PA, a significant correlation was found between BMI
and the stiffness of the right and left vastus lateralis, the stiffness of the left vastus medialis, and the
elasticity of the left vastus medialis. Adiposity may enhance it by increasing connective tissue and water
content. Excessive or insufficient stiffness may lead to injuries. When designing exercise programs for
overweight, obese individuals with high levels of PA, the impact of BMI on the stiffness and elasticity
of the quadriceps muscle should be considered.
Keywords: Body Mass Index, Elasticity, Muscle Tone, Stiffness