scholarly journals Combined Effects of Bag Holding and Obstacle Avoidance on Gait Characteristics: A Kinematic Study in Healthy Young Adults

2009 ◽  
Vol 19 (2) ◽  
pp. 36-43
Author(s):  
Shinichi Demura ◽  
Masanobu Uchiyama
Keyword(s):  
Young Adults ◽  
Obstacle Avoidance ◽  
Combined Effects ◽  
Gait Characteristics ◽  
Kinematic Study

scholarly journals Preferred Gait Characteristics in Young Adults in Qatar: Physiological, Perceptual, and Spatiotemporal Analysis

SAGE Open ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 215824402094572
Author(s):  
Lina Majed ◽  
Clint Hansen ◽  
Olivier Girard
Keyword(s):  
Young Adults ◽  
Perceived Exertion ◽  
Metabolic Cost ◽  
Spatiotemporal Analysis ◽  
Rating Of Perceived Exertion ◽  
Cost Of Transport ◽  
Gait Characteristics ◽  
Gait Parameters ◽  
Spatiotemporal Parameters ◽  
Support Phase

Preferred walking speed (PWS) is considered a robust measure for assessing mobility and overall health. Healthy reference data are unavailable for Qatar. The aim of this study was to investigate PWS and underlying gait parameters around PWS among healthy young adults living in Qatar. PWS was assessed for 18 Qataris (9 females) and 16 non-Qatari Arabs residing in Qatar (9 females). Within- and between-gender group comparisons were carried out using Mann–Whitney U-tests. Metabolic cost of transport, heart rate, rating of perceived exertion, and spatiotemporal parameters were compared between Qatari and non-Qatari groups of similar gender at seven speed levels relative to PWS using two-way analyses of variance (ANOVAs). Similar comparisons were done at two absolute speeds using Mann–Whitney U-tests. While PWS did not differ significantly between the female groups, it was on average 19% slower for the Qatari males as compared to non-Qatari males. At similar relative speeds, differences appeared solely in physiological parameters between female groups. Only spatiotemporal differences were revealed between the male groups where longer stride and support phase durations and slower stride frequencies characterized the Qatari male group. It is suggested that differences in PWS could be due to potential cultural factors (e.g., cultural clothing) differentiating the Qatari and non-Qatari groups. PWS values reported in this study also appear systematically lower when compared to Western references found in the literature. Findings suggest that the assessment of normative gait values needs to take both cultural habits and geographic disparity into account.

scholarly journals Influence of BMI on Gait Characteristics of Young Adults: 3D Evaluation Using Inertial Sensors

Sensors ◽  
2019 ◽  
Vol 19 (19) ◽  
pp. 4221 ◽  
Author(s):  
Valeria Rosso ◽  
Valentina Agostini ◽  
Ryo Takeda ◽  
Shigeru Tadano ◽  
Laura Gastaldi
Keyword(s):  
Young Adults ◽  
Inertial Sensors ◽  
Joint Kinematics ◽  
Normal Weight ◽  
Lower Limbs ◽  
Opening Angle ◽  
Temporal Parameters ◽  
Gait Characteristics ◽  
Spatio Temporal ◽  
Soft Tissue Artifact

Overweight/obesity is a physical condition that affects daily activities, including walking. The main purpose of this study was to identify if there is a relationship between body mass index (BMI) and gait characteristics in young adults. 12 normal weight (NW) and 10 overweight/obese (OW) individuals walked at a self-selected speed along a 14 m indoor path. H-Gait system, combining seven inertial sensors (fixed on pelvis and lower limbs), was used to record gait data. Walking speed, spatio-temporal parameters and joint kinematics in 3D were analyzed. Differences between NW and OW and correlations between BMI and gait parameters were evaluated. Conventional spatio-temporal parameters did not show statistical differences between the two groups or correlations with the BMI. However, significant results were pointed out for the joint kinematics. OW showed greater hip joint angles in frontal and transverse planes, with respect to NW. In the transverse plane, OW showed a greater knee opening angle and a shorter length of knee and ankle trajectories. Correlations were found between BMI and kinematic parameters in the frontal and transverse planes. Despite some phenomena such as soft tissue artifact and kinematics cross-talk, which have to be more deeply assessed, current results show a relationship between BMI and gait characteristics in young adults that should be looked at in osteoarthritis prevention.

Combined effects of alcohol and sleep deprivation in normal young adults

1980 ◽  
Vol 67 (3) ◽  
pp. 279-287 ◽  
Author(s):  
Shirley C. Peeke ◽  
Enoch Callaway ◽  
Reese T. Jones ◽  
George C. Stone ◽  
Joseph Doyle
Keyword(s):  
Young Adults ◽  
Sleep Deprivation ◽  
Combined Effects

scholarly journals Association of the combined effects of air pollution and changes in physical activity with cardiovascular disease in young adults

2021 ◽  
Author(s):  
Seong Rae Kim ◽  
Seulggie Choi ◽  
Kyuwoong Kim ◽  
Jooyoung Chang ◽  
Sung Min Kim ◽  
...  
Keyword(s):  
Physical Activity ◽  
Cardiovascular Disease ◽  
Air Pollution ◽  
Young Adults ◽  
Cardiovascular Health ◽  
Combined Effects ◽  
Cvd Risk ◽  
Increased Risk ◽  
High Pollution ◽  
Pollution Exposure

Abstract Aims Little is known about the trade-off between the health benefits of physical activity (PA) and the potential harmful effects of increased exposure to air pollution during outdoor PA. We examined the association of the combined effects of air pollution and changes in PA with cardiovascular disease (CVD) in young adults. Methods and results This nationwide cohort study included 1 469 972 young adults aged 20–39 years. Air pollution exposure was estimated by the annual average cumulative level of particulate matter (PM). PA was calculated as minutes of metabolic equivalent tasks per week (MET-min/week) based on two consecutive health examinations from 2009 to 2012. Compared with the participants exposed to low-to-moderate levels of PM2.5 or PM10 who continuously engaged in ≥1000 MET-min/week of PA, those who decreased their PA from ≥1000 MET-min/week to 1–499 MET-min/week [PM10 adjusted hazard ratio (aHR) 1.22; 95% confidence interval (CI) 1.00–1.48] and to 0 MET-min/week (physically inactive; PM10 aHR 1.38; 95% CI 1.07–1.78) had an increased risk of CVD (P for trend <0.01). Among participants exposed to high levels of PM2.5 or PM10, the risk of CVD was elevated with an increase in PA above 1000 MET-min/week. Conclusion Reducing PA may lead to subsequent elevation of CVD risk in young adults exposed to low-to-moderate levels of PM2.5 or PM10, whereas a large increase in PA in a high-pollution environment may adversely affect cardiovascular health.

Temporospatial analysis: Gait characteristics of young adults and the elderly in turning while walking

2015 ◽  
Vol 22 (3) ◽  
pp. 129-134 ◽  
Author(s):  
Sunee Bovonsunthonchai ◽  
Vimonwan Hiengkaew ◽  
Roongtiwa Vachalathiti ◽  
Catherine M Said ◽  
Frances Batchelor
Keyword(s):  
Young Adults ◽  
The Elderly ◽  
Gait Characteristics

scholarly journals Gait Characteristics Based on Shoe-Type Inertial Measurement Units in Healthy Young Adults during Treadmill Walking

Sensors ◽  
2020 ◽  
Vol 20 (7) ◽  
pp. 2095
Author(s):  
Myeounggon Lee ◽  
Changhong Youm ◽  
Byungjoo Noh ◽  
Hwayoung Park
Keyword(s):  
Young Adults ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Treadmill Walking ◽  
Inertial Measurement Units ◽  
Related Factors ◽  
Inertial Measurement ◽  
Bilateral Coordination ◽  
Gait Characteristics ◽  
Measurement Units

This study investigated the gait characteristics of healthy young adults using shoe-type inertial measurement units (IMU) during treadmill walking. A total of 1478 participants were tested. Principal component analyses (PCA) were conducted to determine which principal components (PCs) best defined the characteristics of healthy young adults. A non-hierarchical cluster analysis was conducted to evaluate the essential gait ability, according to the results of the PC1 score. One-way repeated analysis of variance with the Bonferroni correction was used to compare gait performances in the cluster groups. PCA outcomes indicated 76.9% variance for PC1–PC6, where PC1 (gait variability (GV): 18.5%), PC2 (pace: 17.8%), PC3 (rhythm and phase: 13.9%), and PC4 (bilateral coordination: 11.2%) were the gait-related factors. All of the pace, rhythm, GV, and variables for bilateral coordination classified the gait ability in the cluster groups. We suggest that the treadmill walking task may be reliable to evaluate the gait performances, which may provide insight into understanding the decline of gait ability. The presented results are considered meaningful for understanding the gait patterns of healthy adults and may prove useful as reference outcomes for future gait analyses.

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