Larger hip flexion range of motion with knee extension (hip ROM) and passive stiffness the hamstring is associated greater production isometric concentric torque at longer muscle lengths. Nevertheless, associations among ROM, hamstring, eccentric a length remain unclear. Therefore, we aimed to investigate association angle-torque relationship. Seventeen healthy male college students participate...

The right hip abductor (HA) musculature has been reported to demonstrate stretch weakness attributable to chronic elongation imposed by standing posture common to right-handed healthy individuals. Research has shown side-specific differences in maximal isometric torque-hip abduction angle curves for the HA muscles in a similar population. The purposes of this study were to assess isometric hip ...

INTRODUCTION Balance is one of the main problems of children with developmental coordination disorder (DCD). According to process-oriented approach, besides strength training, neuromuscular adaptations can improve balance. OBJETIVE To evaluate the effects of strength training on improving static and dynamic balance in DCD children. METHODS AND POPULATION Children between 7 to 9 years old in...

OBJECTIVES To investigate the association between measures of strength of the lower limb and trunk muscles and gait speed and to identify the muscle group that would best predict gait speed in individuals with sub-acute stroke. METHODS Using a cross-sectional observational study design, forty-four individuals with sub-acute stroke (62 years, SD=14; 4 months, SD=1 post-stroke) were assessed. T...

CONTEXT Gluteus medius (Gmed) weakness is associated with some lower-extremity injuries. People with Gmed weakness might compensate by activating the tensor fasciae latae (TFL). Different hip rotations in the transverse plane may affect Gmed and TFL muscle activity during isometric side-lying hip abduction (SHA). OBJECTIVES To compare Gmed and TFL muscle activity and the Gmed:TFL muscle-activ...

Previous research has demonstrated the importance of both dynamic and isometric maximal strength and rate of force development (RFD) in athletic populations. The purpose of this study was to examine the relationships between measures of isometric force (PF), RFD, jump performance and strength in collegiate football athletes. The subjects in this study were twenty-two men [(mean ± SD):age 18.4 ±...

BACKGROUND The aim of this study was to investigate muscle damage indicators and electromyography activities of quadriceps muscles at 25° of hip flexion in untrained healthy females after an eccentric exercise induced muscle fiber damage. METHODS A total of 14 healthy females participated in this pre-experimental study. The subjects performed maximal eccentric quadriceps contractions at 25˚ o...

OBJECTIVE To compare the cervical isometric strength, fatigue endurance and range of motion of adult and under-18 age-grade front-row rugby players to inform the development of a safe age group policy with particular reference to scrummaging. DESIGN Cross-sectional cohort study. SETTING 'Field testing' at Murrayfield stadium. PARTICIPANTS 30 high-performance under-18 players and 22 adult ...

abstract introduction: chronic neck pain is one of the most common problems among computer users. the aim of this research was evaluation of the effect of 8 weeks selected exercise therapy and self treatment with pamphlet programs on the strength and range of motion (rom) of the neck in the patients with chronic neck pain. methods: sixty-six patients with chronic neck pain (mean (±sd) age 39.19...

Most studies about human responses to mechanical vibrations involve whole-body vibration and vibration applied perpendicularly to the tendon or muscle. The aim of the present study was to verify the effects of mechanical vibration applied in the opposite direction of muscle shortening on maximal isometric strength of the flexor muscles of the elbow due to neural factors. Conventional isometric ...