Background: The sacroiliac joint is a widely described source of low back pain. Therapeutic approaches to relieve pain include the application pelvic belts. However, effects belts on ligaments as potential generators are mostly unknown. Objectives: aim our study was analyze influence ligament load by means computer model. Study Design: Experimental using finite element method. Methods: A model human pelvis created, comprising bones, ligaments, and cartilage. Detailed geometries, material...

Introduction Acellular scaffolds are increasingly used for the surgical repair of tendon injury and ligament tears. Despite this increased use, very little data exist directly comparing acellular their native counterparts. Such a comparison would help establish effectiveness acellularization procedure human tissues. Furthermore, such estimate influence cells in stability give insight into effects on collagen. Material Methods Eighteen iliotibial tract samples were obtained from nine body...

While it is generally recognized that prolonged sitting periods at work can harm the locomotor system, little attention has been paid to impact of behavior on muscle stiffness. This study investigated effect posture and postural activity lower back stiffness in a controlled experiment which participants sat desk for 4.5 h. Lower was measured before after period. In addition, continuous recording kinematic data using an eight-camera motion analysis system applied quantify level activity. The...

The original windlass mechanism describes a one-to-one coupling between metatarsal joint dorsiflexion and medial longitudinal arch rise. description assumes sufficiently stiff plantar aponeurosis absence of foot muscle activity. However, recent research calls for broader interpretation the that accounts an extensible active muscles. In this study, we investigate rise in response to toe when sitting, standing, walking discuss mechanism's contributions static dynamic load scenarios. 3D motion...

The sacroiliac joint (SIJ) is frequently involved in low back and pelvic girdle pain. However, morphometrical functional characteristics related to SIJ pain are poorly defined. Pelvic belts represent one treatment option, but evidence still lacks as their pain-reducing effects the mechanisms involved. Addressing these two issues, this case-controlled study compares morphometric, clinical data patients healthy controls evaluates of short-term belt application.Morphometric pertaining were...

The plantar aponeurosis in the human foot has been extensively studied and thoroughly described, part, because of incidence fasciitis humans. It is commonly assumed that a unique adaptation to bipedalism evolved concert with longitudinal arch. However, comparative anatomy poorly known most mammals, even among non-human primates, hindering efforts understand its function. Here, we review previous anatomical descriptions 40 primate species use phylogenetic methods reconstruct evolution...

In modern Western societies, sedentary behavior has become a growing health concern. There is increasing evidence that prolonged sitting periods can be associated with musculoskeletal disorders. While it generally recognized back muscle activity low during chair-sitting, little known about the consequences of minor to no on stiffness. Muscle stiffness may play an important role in health. This study investigated effects regular contractions controlled experiment which participants sat for...

The ligaments in coherence with the capsule of hip joint are known to contribute stability. Nevertheless, contribution mechanical properties and gender- or side-specific differences still not completely clear. To date, comparisons other tissues stabilizing pelvis joint, e.g. iliotibial tract, were performed.Hip obtained from 17 human cadavers (9 females, 7 males, 13 left 8 right sides, mean age 83.65 ± 10.54 years). 18 iliofemoral, 9 ischiofemoral pubofemoral prepared. Uniaxial stress-strain...

Abstract Although most features of modern footwear have been intensively studied, there has almost no research on the effects toe springs. This nearly ubiquitous upward curvature sole at front shoe elevates box dorsally above ground and thereby holds toes in a constantly dorsiflexed position. While it is generally recognized that springs facilitate forefoot’s ability to roll forward end stance, may also some effect natural foot function. study investigated biomechanics controlled experiment...

Continuous monitoring of knee motion can provide deep insights into patients’ rehabilitation status after injury and help to better identify their individual therapeutic needs. Potentiometers have been identified as one possible sensor type for continuous motion. However, verify use in real-life environments, further research is needed. We aimed validate a potentiometer-embedded brace measure sagittal kinematics during various daily activities, well assess its potential continuously monitor...

This study investigates the sagittal plane dynamics of foot, particularly metatarsophalangeal (MTP) joint and medial longitudinal arch (MLA) movements, in relation to obesity foot health. The kinematics MTP joints were measured 17 individuals with class 2–3 (BMI > 35 kg/m²) 10 normal-weight ≤ 24.9 using marker-based tracking. Analysis was conducted during heel lifting while seated walking at self-selected speeds. results indicated that obese participants exhibited 20.92% greater...

Background: The high prevalence of injuries in female athletes necessitates a course action that not only enhances research this field but also incorporates improved prevention programs and regular health monitoring highly stressed structures such as tendons muscles. Since myometry is already used by coaches physiotherapists, it important to investigate whether tissue stiffness varies different types sports, measures are affected an acute training session. Methods: Myometric measurements the...

Polypropylene composites with different contents of multiwalled carbon nanotubes (MWCNT) were microinjection molded to investigate the influence melt temperature and injection velocity on final mechanical properties. Therefore, samples various MWCNT loadings from 1 wt% 5 prepared by diluting commercial masterbatches. Microinjection molding was used prepare micro tensile bars under processing conditions. The nano expose properties significantly influenced nanotube loading, temperature.

Strain-dependent transmission data of nine iliotibial tract specimens are determined using a custom-built optical setup with halogen light source and an industrial norm material testing machine. Polarized microscopy hematoxylin-eosin staining indicated that lateral contraction collagen structures is responsible for total intensity variations during 20-cycle preconditioning 5-cycle tensile test. Tensile force progress opposite to progress. Due dehydration, wavelength-specific radiation...

Achilles tendon adaptation is a key aspect of exercise performance and injury risk prevention. However, much debate exists about the in response to activities. Most published research currently limited elite athletes selected Also, existing studies on do not control for genetic variation. Our explorative cross-sectional study investigated effects regular recreational activities mechanical properties 40 identical twin pairs. Using handheld oscillation device determine properties, we found...