Browsing by Subject "Postural control"

Now showing 1 - 2 of 2
  • Thumbnail Image
    Publication
    Open Access
    Effect of gender, leg dominancy and body mass index on Y-balance performance among young healthy adults
    (Universidad de Murcia, Servicio de Publicaciones, 2024) Abdel-Aziem, Amr Almaz; Ewais, Najlaa Fathi; Hassan, Sahar Mahmoud
    This study investigated the influence of the sex, dominant leg and BMI on dynamic balance control of young adults (mean age; 20 ± 1.56) using the Y-balance test-lower quarter (YBT-LQ). This cross-sectional study included 218 participants (105 men and 103 women) who were recruited as a convenient sample of young, normal adults. The examination was implemented in one session, with three trials in each direction on each leg. The maximum reach distance of the three trials in each direction was used for statistical analysis. The reported reach distances were also normalized for each participant's leg length. Males' right leg values in the posteromedial (PM), posterolateral (PL), and composite directions were substantially longer than females' (p<0.05), and no significant difference between both sexes in anterior (AT) direction (p>0.05). In all directions, there were no significant differences between both sexes for the left leg (p>0.05), and no significant differences between the right values of the dominant and non-dominant legs (p>0.05). However, the left values of the non-dominant legs were longer than the dominant leg in directions (p<0.05). The right leg values of the AT, PM, and composite values of the average BMI subjects was greater than the over-weight and obese subjects (p<0.05), and the left leg values of the AT and composite values of the average BMI subjects was greater than over-weight and obese subjects (p<0.05). Males have a longer right leg reach distance in the PM, PL directions, and composite value compared to females. The right leg dominant participants have longer reach distance of the left leg in all directions. When compared to over-weight and obese participants, average body weight subjects have bilaterally larger reach distance in the AT and composite directions.
  • Thumbnail Image
    Publication
    Open Access
    Monopodal postural stability assessment by wireless inertial measurement units through the fast fourier transform
    (Human Kinetics, 2019-10-18) Pino Ortega, José; Hernández Belmonte, Alejandro; Gómez Carmona, Carlos David; Bastida Castillo, Alejandro; García Rubio, Javier; Ibañez, Sergio José; Pino Ortega, José; Actividad Física y Deporte
    Objectives: The aims of the present study were: (i) to describe the FFT multi-joint as monopodal postural stability measurement in well-trained athletes, (ii) to compare the withinsubject FTT between laterality, joints and body segments, and (iii) to establish the within and between-subject relationship between joints. Methods: Twelve national-level basketball players participated voluntarily in this investigation. The participants performed two 60-second repetitions of a monopodal stability test (one repetition with each lower limb), separated by three minutes of active recovery. All tests were recorded by four WIMU PROTM inertial devices located on the ankle, knee, lumbar spine and thoracic spine. The main variable was total acceleration (AcelT), where the Fourier Transform (FFT) was applied. Results: The higher instability results were found in the ankle and in the non-dominant lower limb (dominant=1.136±0.81 a.u.; non-dominant=1.169±.108 a.u.). In the body segment analysis, the greater percentage of differences (%diff) were shown between lumbar spine and knee in the dominant (%diff=-2.989%; d=0.87) and non-dominant lower limb (%diff=-3.243%; d=0.90). Finally, great between-subjects variability was found in all joints and body segments. Conclusions: The described protocol is proposed for monopodal postural stability assessment, being useful to provide information about the stability of joints and the body segment between joints. Besides, a within-subject analysis is recommended and the FFT calculation will enable a linear analysis of each test .