In the single-joint torque exertion task, which has been widely used to control muscle activity, only the relevant joint torque is specified. However, the neglect of the neighboring joint could make the procedure unreliable, considering our previous result that even monoarticular muscle activity level is indefinite without specifying the adjacent joint torque. Here we examined the amount of hip...

To investigate lower extremity muscle strength as risk factor for an acute ankle injury in youth athletes. Cohort study. Basketball and floorball clubs. 188 (≤21) male 174 female 1RM leg press, maximal concentric isokinetic quadriceps hamstrings well isometric hip abductor were measured athletes followed up to three years. Cox regression models used statistical analyses. In males, greater press...

Muscular strength is generally measured using either of the following methods, one repetition maximum (1RM) of a weight-lifting exercise, a resisted maximal effort and portable or laboratory-based dynamometry. The 1RM method refers to measurements of maximum strength using a strength training device such as a barbell or stationary weight-lifting machine. Dynamometry can be divided into two sepa...

It is critical to determine the risk factors for activities of daily living (ADL) disability caused by locomotor dysfunction. However, no longitudinal study has investigated association between due locomotive dysfunction and multidimensional factors. Therefore, we relationship progression functional capacity decline multiple physical functions among older adults in a study. The participants com...

BACKGROUND Patellofemoral pain syndrome is one of the most common chronic knee injuries; however, little research has been done to determine the risk factors for this injury. HYPOTHESIS Altered lower extremity kinematics and kinetics, decreased strength, and altered postural measurements will be risk factors. STUDY DESIGN Cohort study (prognosis); Level of evidence, 2. METHODS A total of ...

INTRODUCTION After hip surgery, it is the orthopedist's decision to allow full weight bearing to prevent complications or to prescribe partial weight bearing for bone ingrowth or fracture consolidation. While most loading conditions in the hip joint during activities of daily living are known, it remains unclear how demanding physiotherapeutic exercises are. Recommendations for clinical rehabil...

CONTEXT Hip-muscle impairments are associated with a variety of lower-extremity dysfunctions. Accurate assessment in the clinical setting can be challenging due to the strength of hip muscles relative to examiner strength. OBJECTIVE To examine the influence of examiner strength and technique on manual hip-strength testing using a handheld dynamometer. DESIGN Repeated measures. SETTING Res...

CONTEXT Functional subdivisions are proposed to exist in the gluteus medius (GM) muscle. Dysfunction of the GM, in particular its functional subdivisions, is commonly implicated in lower limb pathologies. However, there is a lack of empirical evidence examining the role of the subdivisions of the GM. OBJECTIVES To compare the activation of the functional subdivisions of the GM (anterior, midd...

The effect of either the muscle spindle cell receptor technique of applied kinesiology or a placebo technique on isometric strength of the right quadriceps femoris muscle group was studied among 20 normal human subjects. Peak, perpendicular maximal values of isometric quadriceps femoris muscle force was measured by a force transducer. Three training sessions consisting of three trials of peak m...