abstract study design: a cross-sectional non-experimental study. objectives: to collectively detect the reliability and feasibility of the five types of clinical tests that have been used to measure endurance of the trunk muscles in subjects with and without low back pain (lbp) and identify the sensitivity of each test to predict the probability of the occurrence oflbp. background: testing spin...

PURPOSE The aim of this study was to investigate relationships between functional asymmetry of lower limbs, taking into account morphological features of the feet, and jumping ability in men and women. METHODS The study population consisted of 56 subjects, 30 women (age: 20.29 ± 0.59 years; body mass: 58.13 ± 4.58 kg, body height: 165.60 ± 5.03 cm) and 26 men (age: 20.41 ± 0.78 years, body ma...

Explore whether dorsiflexion range of motion (ROM) influences cutting kinematics. Dorsiflexion ROM was measured in 42 individuals using the weight-bearing lunge test (WBLT). Unanticipated kinematics were collected at initial contact (IC) and between IC maximum knee flexion three-dimensional inertial measurement unit methods. Multiple linear regressions with sex as a confounder used to explore r...

AIMS This study was undertaken to investigate the immediate effect of static stretching on normal Achilles tendon morphology and stiffness, and the different effect on dominant and non-dominant legs; and to evaluate inter-operator and intra-operator reliability of using shear-wave elastography in measuring Achilles tendon stiffness. METHODS 20 healthy subjects (13 males, 7 females) were inclu...

Objective: To explore the anaerobic power and surface EMG (sEMG) of quardrocep muscle in lower extremities after single vibration training intervention. Methods: 8 excellent male long jumpers voluntarily participated in this study. Four intervention modes were devised, including high frequency high amplitude (HFHA,30Hz,6mm), low frequency low amplitude(LFLA,15Hz,3mm), high frequency low amplitu...

PURPOSE We aimed to investigate the effect of FIFA 11+ (11+) and HarmoKnee injury preventive warm-up programs on conventional strength ratio (CSR), dynamic control ratio (DCR) and fast/slow speed ratio (FSR) in young male professional soccer players. These ratios are related to the risk of injury to the knee in soccer players. METHODS Thirty-six players were divided into 3 groups; FIFA 11+, H...

The purpose of this research was to examine the relationship between plantar pressure distribution and balance in adolescent taekwondo athletes. Twenty-three athletes participated study voluntarily. Pedobarographic method used determine force. Flamingo test for static lower quarter Y dynamic were applied. Pearson correlation balance. A moderate significant negative non-dominant leg at forefoot ...

CONTEXT Contralateral muscular imbalances have been suggested to increase the risk of lower extremity injury. Previous groups have assessed strength of the quadriceps and hamstring muscle groups; however, no previous authors have compared bilateral hip-abductor muscular performance. OBJECTIVE To examine the strength and fatigability of the hip abductors in the dominant and nondominant legs. ...