[Purpose] The purpose of this study was to investigate the effects of whole-body vibration exercise (WBVE) on isokinetic muscular function of the knee and jump performance depending on different squatting positions. [Subjects] The subjects were 12 healthy adult men who did not exercise regularly between the ages of 27 and 34. [Methods] WBVE was performed with high squat position (SP), middle SP...

This study aims to examine the effect of McConnell taping to patients with patellofemoral pain syndrome on the change of the muscle activity of vastus medialis and vastus lateralis during squatting. The total numbers of participants are 16 patients with pain in their knee. There are three different experiments: no-taping, placebo taping, and McConnell taping. As a result, both the muscle activi...

Squat jump (SJ) has been extensively used in training, yet analysis in trained athletes is scarce. Therefore, main research question was: what strength parameters can better explain the best SJ performance in trained athletes? Thirty five athletes performed 3 maximal SJ (using a 17kg bar) weighted jumps while ground reaction forces were sampled using a force platform synchronized with a linear ...

This study examined the levels of hip and knee torques produced during a one repetition maximum (1RM partial) squat and full squat in order to determine if there would be a difference in the peak torque created at the two depths. Eight male athletes (standing height = 1.84  0.07 m; mass = 87  14 kg; age 23 ± 2.1 years) volunteered for the study. Each subject performed a 1RM squat at full squa...

A test rig for studying the biomechanical behaviour of post-mortem human knees is built. For loading the quadriceps tendon a special clamping device is constructed, so the forces up to 3000 N could easily be transferred to the tendon. Several post-mortem human knees used in this study are tested to collect data about the general biomechanics of knee joint during squatting. The forces in the qua...

A 75-year-old man had occasionally been referred to our hospital with sudden dyspnea due to unknown causes. He had a history of hypertension and polycystic kidneys and had undergone transcatheter pulmonary vein isolation for paroxysmal atrial fibrillation 2 years previously. Physical examination revealed normal heart sounds without murmurs and was otherwise unremarkable. Electrocardiography, ch...

Poor working postures and task demands are common factors that affect human performance in a workplace , particularly in the industrial sector (i.e., assembly tasks). These factors can lead to performance deterioration and introduce musculoskeletal disorders (MSDs). The current research study examines the interaction effects of working postures and assembly task demands on human performance and...

Repeated biopsy sampling from one muscle is necessary to investigate muscular adaptation to different forms of exercise as adaptation is thought to be the result of cumulative effects of transient changes in gene expression in response to single exercise bouts. In a crossover study, we obtained four fine needle biopsies from one vastus lateralis muscle of 11 male subjects (25.9 ± 3.8 yr, 179.2 ...