Yazar "Yaprak, Yildiz" seçeneğine göre listele

Listeleniyor 1 - 3 / 3
  • Küçük Resim
    Öğe
    The Effect of Burnout Fatigue After Static and Dynamic Squat Exercises to Isokinetic Leg Strength
    (Int Journal Applied Exercise Physiology, 2019) Yaprak, Yildiz; Kucukkubas, Nigar
    The aim of this study was to determine the change in isokinetic leg strength after static and dynamic squat burnout fatigues. Fifty four (37 male, 17 female) voluntary university students aged of 18-26 years (22.09 +/- 2.08) participated in this study. Two different burnout fatigue of static and dynamic squat exercise protocols were induced over an interval of 3 days. Strength measurements: After warm-up exercises, strength of the knee extensor and flexor muscles of the dominant leg was tested with 5 maximal repetitons at 60 degrees/sec using an isokinetic dynamometer. The decrease of the quadriceps muscle strength were -5.53% and 15.62% (p<0.00) respectively after static and dynamic squat fatigue exercises. Unlike this result, following static and dynamic burnout exercise fatigue, an increase in hamstring muscle strength were obtained significantly +3,31% ve +2,90% respectively (p<0.02). Furthermore, there were low negative relations between static exhaustion times with body weight (-.28) and thigh circumference (-.34), while there was no significant relationship between dynamic exhaustion times and any anthropometric measurements. The acute effect of the burnout fatigue in isokinetic strength were found surprising. There is a need to examine why muscles are activated more with acute response of burnout fatigue by the function of the working muscle. After burnout fatigue formed by static and dynamic exercises, isokinetic muscle strength of quadriceps muscle decreased and that of hamstring muscles increased. The possible reason of unexpected increase in the hamstring muscle strength after both of the fatigue types might be the increase in the participation of the total number of fibrils.
  • Küçük Resim
    Öğe
    The Effects of Upper Body Muscle Strength Training on Anthropometric Measurements and Cardiopulmonary Function in Obese Women
    (Soc Physical Therapy Science, 2010) Yaprak, Yildiz; Durgun, Behice; Kurdak, Sadi
    [Purpose] The purpose of this study was to investigate the effects of upper body muscle strength training on anthropometric measurements and cardiopulmonary function in healthy obese women. [Subjects] Sixty-three obese women (age: 37.96 +/- 2.25 years, height: 158.99 +/- 5.76 cm, body weight: 83.65 +/- 11.24 kg, body mass index: 33.11 +/- 4.31 kg/m(2)) volunteered to participate in this study. [Methods] The participants were divided into 3 groups. The aerobic (A) group performed diet plus aerobic exercise on a bicycle ergometer for 45-60 min, 3 times a week for 8 weeks, while the aerobic-strength (AS) group performed strength training with the barbell and their body weight plus diet and aerobic exercise. C group was the control. The spirometer test, gas analysis and anthropometric measurements were performed for all three groups before and after training. SPSS 11.0 statistical software was used to perform all the analysis. Comparisons were made using one-way ANOVA. [Results] The present findings show that, there were significant differences between pre- and post-training measures of anthropometric parameters and cardiopulmonary function in the study groups. After 8 wk of training, forced vital capacity (FVC) and maximum voluntary ventilation (MVV) of the AS group showed a significant increase (16.19% and 13.77%). Furthermore, VO(2) max parameters of the A and AS groups showed a significant increase (8.48-6.15%). [Conclusions] Diet and aerobic training in obese women significantly improved their morphological structure and aerobic capacity. However, diet plus aerobic and strength training significantly increased muscle strength of the upper body and accessory respiratory muscles. Therefore pulmonary functions parameters such as FVC and MVV values increased.
  • Küçük Resim
    Öğe
    Gender-related Differences on Physical Fitness Parameters After Core Training Exercises: A Comparative Study
    (Mattioli 1885, 2020) Yaprak, Yildiz; Kucukkubas, Nigar
    Objective: In this study, the effects of 8 weeks of core training by gender on strength, muscle endurance, flexibility, dynamic balance and body composition were examined. Methods: Twelve females (F) (Age: 20.66 +/- 1.82 years, height:165.96 +/- 6.98 cm, body weight: 53.25 +/- 7.11 kg) and twelve young males (M) (Age: 20.75 +/- 2.63 years, height:172.38 +/- 4.48 cm, body weight: 67.40 +/- 8.05 kg) participated voluntarily for the study. Body composition compartments, Y balance test (YBT), flexibility tests, isometric strength, back endurance, and sit up tests were tested before and after the core training of 3 days per week for 8 weeks period. Two repeated measures (group x time) was used for differences of pre- and post-training for all parameters at two groups. Results: The findings of the present study showed significant increases in all parameters, except body composition between pre and post-training results in both groups. However, between genders, there were not statistically significant differences all parameters except dynamic balance. Following the training, female group achieved more increase in percentage change of leg strength (+16.38%), back strength (+15.07%), Biering-Sorenson test (+38.65%), sit and reach test, spine ROM test, and posteromedial balance results. Differently, the percentage change of male group results for sit up (+37.94%), right-left lateral flexion (+16.40%, +17.03%), and anterior-posterolateral balance tests demonstrated increased more. Conclusions: This study investigated differences the effects of core training with unstable surfaces by gender on the physical fitness parameters. The results showed that gender does influence dynamic balance parameter but not body composition, flexibility, strength and muscular endurance parameters for 8 weeks of core training.