Abstract The aim of the present study was to examine sensitivity several movement features during running exhaustion in a subject-specific setup adopting cross-sectional design and machine learning approach. Thirteen recreational runners, that systematically trained competed, performed an exhaustive protocol on instrumented treadmill. Respiratory data were collected establish second ventilatory threshold (VT2) order obtain reference point regarding gradual accumulation fatigue. A approach...

<i>Background:</i> Controversial findings exist in the literature with respect to efficacy of visually guided weight-shifting (WS) training as a means improving balance healthy older adults. <i>Objective:</i> The purpose this study was investigate impact two direction-specific, WS protocols on standing elderly women. <i>Methods:</i> Forty-eight community-dwelling women, all free any neurological or musculoskeletal impairment, were randomly assigned into:...

The aim of this study was to examine the influence level skill and swimming speed on inter-limb coordination freestyle movements. Five elite (2 males, 3 females; age 18.9 ± 1.0 years, height 1.71 0.04 m, body mass 62.1 7.0 kg) seven novice (age 22.0 2.0 1.77 74.8 9.0 swimmers swam a sprint self-paced 25 m trial. trials were recorded by four digital cameras operating at 50 Hz. digitized frames underwent three-dimensional direct linear transformation yield endpoint kinematic trajectories....

The purpose of this study was to compare the effects explicit and analogy learning on preschool children’s running, long jump, gallop balance. participants were 43 children randomly assigned group (22 children) or (21 children). In instructions given about body limb movements to-be-learned skill, whereas in form analogies (i.e. using metaphors). duration intervention four lessons. Prior after intervention, assessed for gallop, balancing one foot. results showed that both groups improved...

This study examined the impact of visually guided weight-shifting training on elderly women's limits stability during static leaning and dynamic swaying in different directions. Sixty-three women were assigned into a group that practiced weight shifting (30-min sessions, 3 sessions/week, 4 weeks) either anterior/posterior or medio/lateral direction control group. Training resulted reduction upper body rotation an increase shank center pressure displacement. It is concluded practice increases...

This study aimed to examine countermovement jump (CMJ) kinetic data using logistic regression, in order distinguish sports-related mechanical profiles. Eighty-one professional basketball and soccer athletes participated, each performing three CMJs on a force platform. Inferential parametric nonparametric statistics were performed explore group differences. Binary regression was used model the response variable (soccer or not soccer). Statistical significance (p < 0.05) reached for...

BACKGROUND: Pain relief is important both for the movement of patients suffering from low back pain and quality life. Dry needling effective on myofascial trigger points but its effect area functional balance not fully known. OBJECTIVE: To examine immediate dry pain. METHODS: Twenty five with sub-chronic were randomly divided into two groups: intervention or control group. Needles used participants group, bilaterally at spinus level, one a half finger breath midline in levels L2–L5 lumbar...

Force platforms are widely used in biomechanics to measure ground reaction forces (GRF) during various human movements. However, traditional force plates not easily outside a research lab. To overcome this issue, researchers and manufacturers developing low-cost portable that can be variety of settings, including outdoors.

Background: Handheld dynamometers are used for diagnosis and rehabilitation at several pathologies. Grip force is essential a person’s quality of life. Most not equipped with or training protocols, although the bibliography highlights this need. Objective: To compare validity reliability Jamar K-Force in patients shoulder impingement syndrome healthy people. Methods: Concurrent was assessed using known weights. Forty-four (44) 69 adults performed three maximum repetitions random order each...

Abstract The purpose of this study was to compare the amount angular momentum and efficiency landing for hang 2½ hitch kick long jump techniques. Twelve male jumpers participated in investigation were divided into two groups based on their flight technique (hang group, n =6; =6). participants performed three jumps with full run‐up, best which selected analysis. A two‐dimensional DLT analysis take‐off, flight, conducted groups. Three cameras (JVC GR‐DVL 9800 GL, Victor Company, Japan) a...

This study examined whether analysing kinetic features of drop jumps (DJ) as one-dimensional biomechanical curves can reveal specific patterns that are consistent and cluster DJ performance. Hierarchical clustering analysis on from 40 cm data performed by 128 physically active male participants (23.0 ± 4.5 yrs, 1.84 0.07 m, 79.1 10.8 kg) was the derived time-normalised force, power vertical stiffness to unmask underlying explore dissimilarities identified subgroup (cluster) analysis. Results...

Trunk frontal plane kinematics is the most sensitive parameter to fatigue. Practitioners should consider this finding during endurance training.Kinetics exhibit a stable linear increase in mean values but non-linear variance an exhaustive incremental treadmill run. This may affect training at submaximal fatigued state.Specific areas joint distributions of kinetics and running increased sensitivity predicting fatigue state.

To investigate what sampling frequency is adequate for gait, the correlation of spatiotemporal parameters and kinematic differences, between normal CP spastic three frequencies (100 Hz, 50 25 Hz) were assessed. Spatiotemporal, angular, linear displacement variables in sagittal plane along with their 1st 2nd derivatives analyzed. Spatiotemporal stride highly correlated among frequencies. The statistical model (2 × 3 ANOVA) gave no interactions factors group frequency, indicating that...

We explored the impact of running in severe intensity domain on mechanics and muscle oxygenation competitive runners by investigating relationship between mechanical deviations from typical stride characteristics oxygen saturation (SmO

Background: Front crawl and backstroke share similar trunk rotating characteristics tempt coaches to transfer teaching parts from one stroke the other intuitively. However, degree of similarity has yet be determined. The coordination pelvis 7th cervical vertebrae (C7), during yaw roll rotation, when sprint swimming front crawl, was studied. Methods: Thirty-four swimmers were assessed on their performance in25m-sprint each stroke. Using inertial sensors, segment’s time series angular...

An implementation of an independent recording system based on MEMS sensors controlled by a microcontroller, for measuring human body movement parameters, is presented in this paper. The developed uses two pairs 3D accelerometers and gyroscopes, order to determine the exact position joint relative adjoined segments. use such can provide kinematic information overcoming shortcomings video motion analysis systems. Normal pathological gait data are presented.