Strength asymmetry of the knee extensors and physical activity in middle-aged women

• DOI: 10.5507/ag.2014.014
• Publication Date: 2015-03-29T05:30:02Z
• Authors: Michal Lehnert; František Chmelík; Roman Cuberek; Vendula Svobodová
• Keywords: bilateral differences; quadriceps; 03 medical and health sciences; sedentary population; 0302 clinical medicine; Sports medicine; peak torque; RC1200-1245

Background: Differences between muscle strength and power of lower limbs is one the factors associated with falls in elderly population.Muscle asymmetry increases age.Objective: The aim study to assess differences volume intensity physical activity (PA) subgroups women being at higher risk (with without knee extensors dominant non-dominant limb).Methods: Data from 42 (age 56.3 ± 4.4 years; weight 76.5 16.1 kg; body height 164.3 5.2 cm; mass index 28.1 5.3 kg • m -2 ) were used for purpose presented analysis.Furthermore sample was divided into quadriceps (as a criterion greater than 15% chosen).Absolute concentric peak torque evaluated by an isokinetic dynamometer IsoMed 2000 sitting position angular velocity 180° s -1 .PA monitored using Yamax SW-700 pedometers throughout 7 consecutive days Czech version standardized International Physical Activity Questionnaire.Results: Statistically significant groups found amount self-reported vigorous PA (p = .04;d 0.6) only.Differences observed not moderate walking.There also no daily numbers steps measured objectively.Conclusions: results indicate that point view as factor middle-aged women, could be important characteristic PA.This suggestion should taken account habitual training programs population.