The Influence of General and Local Muscle Fatigue on Kinematics and Plantar Pressure Distribution during Running: A Systematic Review and Meta-Analysis.

Fatigue has the potential to alter how impact forces are absorbed during running, heightening the risk of injury. Conflicting findings exist regarding alterations in both kinematics and plantar pressure. Thus, this systematic review and subsequent meta-analysis were conducted to investigate the impact of general and localized muscle fatigue on kinematics and plantar pressure distribution during running.

[The impact of local muscle fatigue and foot strike techniques on kinematic features and plantar pressure distribution while walking].

Although numerous studies have been performed, there are no clear findings providing a meaningful statement about how foot strike changes as a result of muscular fatigue. In studies on running fatigue, it is not possible to differentiate which kinematic or kinetic changes are a direct result of local muscle fatigue and varied speeds. This study aimed to investigate the effect of foot strike technique and localized muscle fatigue of the plantar and dorsal flexors on plantar pressure distribution and selected kinematic features of treadmill running.

Sofigait-A Wireless Inertial Sensor-Based Gait Sonification System.

In this study, a prototype of an inertial sensor-based gait sonification system was tested for the purpose of providing real-time gait feedback on the knee angle. The study consisted of two parts: (1) a comparison of the knee angle measurement to a marker-based 3D optical capturing system (Vicon, Oxford, UK) with N = 24 participants and (2) an evaluation four different sonification feedback versions in an accentuation × pitch (2 × 2) design on a sample of N = 28 participants. For the measurement system comparison, the RMSE was 7.

Kinematic Stride Characteristics of Maximal Sprint Running of Elite Sprinters - Verification of the "Swing-Pull Technique".

Maximum sprinting speed constitutes an optimum relation between the stride length and the step rate in addition to an appropriate sprinting technique. The kinematics of the sprint step at maximum sprinting speed have already been examined in numerous studies, without reaching a consensus. The aim of this study was to analyze the relationship between maximum sprinting speed and the stride kinematics based on the "Swing-Pull Technique".

Influences of Neck and/or Wrist Pain on Hand Grip Strength of Industrial Quality Proofing Workers.

Background: The aim of this study was to analyze the interaction between neck and/or wrist pain and hand grip strength (HGS) and to investigate factors (age, sex, neck disorders, and carpal tunnel syndrome) influencing the HGS of industrial quality proofing workers ( = 145).

Methods: Standardized questionnaires [Neck Disability Index (NDI), Boston Carpal Tunnel Questionnaire] were used to evaluate existing neck and/or wrist pain. HGS measurements were performed in different wrist positions.

Improved neck posture and reduced neck muscle activity when using a novel camera based workstation for manual precision inspection tasks.

Purpose: This study investigates the effects of the usage of a novel camera system compared to a conventional lens system for manual precision tasks. Utilizing the novel camera system aims to improve neck posture, reduce neck muscle tension and thereby minimize the risk of neck pain.

Methods: Camera and lens systems were compared by assessing the craniovertebral angle (CVA), electromyographic activity of the M.

How anterior pelvic tilt affects the lower extremity kinematics during the late swing phase in soccer players while running: A time series analysis.

Anterior pelvic tilt has been proposed to predispose the hamstring in soccer players to injury at the late swing phase during a sprint, however the mechanism on how the changes in the alignment would affect the kinematics are still unclear. Thirty-four male amateur soccer players were recruited for this study. Pelvic tilt was measured using the DIERS Formetric 4D.

Adaptation of Running Biomechanics to Repeated Barefoot Running: A Randomized Controlled Study.

Background: Previous studies have shown that changing acutely from shod to barefoot running induces several changes to running biomechanics, such as altered ankle kinematics, reduced ground-reaction forces, and reduced loading rates. However, uncertainty exists whether these effects still exist after a short period of barefoot running habituation.

Purpose/hypothesis: The purpose was to investigate the effects of a habituation to barefoot versus shod running on running biomechanics.

A Review on the Relationship Between Sound and Movement in Sports and Rehabilitation.

The role of auditory information on perceptual-motor processes has gained increased interest in sports and psychology research in recent years. Numerous neurobiological and behavioral studies have demonstrated the close interaction between auditory and motor areas of the brain, and the importance of auditory information for movement execution, control, and learning. In applied research, artificially produced acoustic information and real-time auditory information have been implemented in sports and rehabilitation to improve motor performance in athletes, healthy individuals, and patients affected by neurological or movement disorders.

Effects of barefoot and footwear conditions on learning of a dynamic balance task: a randomized controlled study.

Purpose: Although barefoot balancing has shown to be more challenging compared to shod balancing, it is still unclear whether this may also influence the balance learning effects. The purpose of this study was to explore the impact of barefoot and shod exercising on learning of a dynamic balance task.

Methods: Sixty healthy and physically active adults (mean age 25.

Effects of Dual-Task Management and Resistance Training on Gait Performance in Older Individuals: A Randomized Controlled Trial.

Dual-task (DT) training is a well-accepted modality for fall prevention in older adults. DT training should include task-managing strategies such as task switching or task prioritization to improve gait performance under DT conditions. We conducted a randomized controlled trial to evaluate a balance and task managing training (BDT group) in gait performance compared to a single task (ST) strength and resistance training and a control group, which received no training.

Asymmetries of Maximum Trunk, Hand, and Leg Strength in Comparison to Volleyball and Fitness Athletes.

Mattes, K, Wollesen, B, and Manzer, S. Asymmetries of maximum trunk, hand, and leg strength in comparison to volleyball and fitness athletes. J Strength Cond Res 32(1): 57-65, 2018-Playing volleyball and corresponding training loads lead to specific strains and might result in asymmetric muscle pattern.

Human Body Mechanics of Pushing and Pulling: Analyzing the Factors of Task-related Strain on the Musculoskeletal System.

The purpose of this review is to name and describe the important factors of musculoskeletal strain originating from pushing and pulling tasks such as cart handling that are commonly found in industrial contexts. A literature database search was performed using the research platform Web of Science. For a study to be included in this review differences in measured or calculated strain had to be investigated with regard to: (1) cart weight/ load; (2) handle position and design; (3) exerted forces; (4) handling task (push and pull); or (5) task experience.

The BASE-Program-A Multidimensional Approach for Health Promotion in Companies.

Multidimensional assessments for conducting interventions are needed to achieve positive health effects within companies. BASE is an acronym, consisting of B = "Bedarfsbestimmung" (requirements); A = "Arbeitsplatzorganisation" (organisation of work); S = "Schulung des belastungsverträglichen Alltagshandelns" (coaching preventive behaviour at work); E = "Eigenverantwortung und Selbstwirksamkeit" (self-responsibility and self-efficacy). It is a prevention program designed to avoid and reduce work-related musculoskeletal diseases.

Influence of age, gender and test conditions on the reproducibility of Dual-Task walking performance.

Background: The review of methodological problems (confounding factors) of gait analysis in intervention studies with seniors is underrepresented.

Aim: This study focusses on two common problems of gait analysis under single-task (ST) and dual-task (DT) conditions (visual verbal Stroop test): (1) reproducibility of walking variables and (2) the effects of gait velocity, gender and age on peak plantar pressure to identify confounding effects on relevant outcome parameters.

Methods: The participants (N = 86, 71.

Authors' response to the letter to the editor: "Effects of acoustic feedback training in elite-standard Para-Rowing" by Schaffert and Mattes (2015).

Our article in the Journal of Sports Sciences was designed to examine effects of auditory feedback on mean boat speed during on-water training of visually impaired athletes in elite-standard Para-Rowing. This aim is stated explicitly in the title, abstract, introduction and discussion section. The effects were analysed on the basis of a conservative approach to using inferential statistics by emphasising measures that communicate meaningful differences and effect sizes to help interpret the data's practical importance for sport competition.

Feasibility study of dual-task-managing training to improve gait performance of older adults.

Introduction: Dual task (DT) training is becoming prominent in fall prevention. However, DT training should include task-managing strategies like task switching or task prioritization to be beneficial to improve gait performance under DT conditions. The aim of this pilot study was to evaluate the effect of a task managing training on gait stability.

Effects of acoustic feedback training in elite-standard Para-Rowing.

Assessment and feedback devices have been regularly used in technique training in high-performance sports. Biomechanical analysis is mainly visually based and so can exclude athletes with visual impairments. The aim of this study was to examine the effects of auditory feedback on mean boat speed during on-water training of visually impaired athletes.

Muscular coordination of the lower extremities of oarsmen during ergometer rowing.

In sweep-oar rowers, asymmetrical force production of the legs is a known phenomenon. The purpose of this study was to investigate the muscular activity of the legs that may cause this asymmetry even when oarsmen perform a symmetrical endurance task. Seven male young elite oarsmen performed an all-out 2000-m test on a rowing ergometer.

Altered tonic and phasic cortisol secretion following unilateral stroke.

Evidence is accumulating that cerebral laterality appears to be an important feature in the regulation of the stress response with the right hemisphere being closely linked to stress-regulatory systems, including the hypothalamic-pituitary-adrenal (HPA) axis. Although some animal and human data support this hypothesis, studies on brain damaged patients yet failed to substantiate laterality effects on cortisol secretion. The aim of this study was to examine whether unilateral stroke differentially affects tonic and phasic response characteristics of the HPA axis, and to evaluate the impact of intrahemispheric lesion location.