Age and height effects on the center of mass and center of pressure inclination angles during obstacle-crossing

Huang, Su‐Cheng; Lu, Tung‐Wu; Chen, Hao‐Ling; Wang, Ting‐Ming; Chou, Li-Shan

doi:10.1016/j.medengphy.2007.12.005

Cited by 82 publications

(68 citation statements)

References 29 publications

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“…Another possibility of bias in this study, with respect to improvements in the variables observed at the post-training evaluations, may have been an in luence of excessive attention and motivation of volunteers. This motivation factor had already been found in previous studies (33). Moreover, the proposition of tasks without giving priority (34) to one or another task did not allow us to clearly detect any interference.…”

Section: Discussionsupporting

confidence: 49%

Effects of a dual-task training on dynamic and static balance control of pre-frail elderly: a pilot study

Targino¹,

Freire²,

Sousa³

et al. 2012

Fisioter. mov.

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INTRODUCTION: This quasi-experimental study is justified by the need to determine the effects of an intervention strategy aimed at improving the static and dynamic balance in pre-frail elderly women. We hypothesized that dual-task training on a treadmill, compared to simple training on a treadmill,may promote statistical difference in postural control of this group. OBJECTIVES: This study aimed to verify the measures of postural control in a group of pre-frail elderly after a physical therapy intervention program based on dual-task treadmill training. MATERIALS AND METHODS: We selected six female pre-frail elderly subjects living in the community. The research was conducted twice a week for 45 minutes, for four weeks. The simple task training consisted only in the use of a treadmill and the dual-task training consisted on the use of a treadmill associated with visual stimuli. Only the intervention group was submitted to the dual-task training. RESULTS: Groups showed improvements in the variables of balance in different tasks, especially on static balance. Both groups showed the most notable changes in the variables related to gait. The BBS scores and the baropodometric variables showed that the experimental group could keep all values similar or better even one month after completion of training, unlike the control group. CONCLUSION: The dual-task performance had no additional value in relation to the improvement of balance in general, but we observed that the effectiveness of visual stimulation seems to occur in the maintenance of short-term balance variables.

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Section: Discussionsupporting

confidence: 49%

Effects of a dual-task training on dynamic and static balance control of pre-frail elderly: a pilot study

Targino¹,

Freire²,

Sousa³

et al. 2012

Fisioter. mov.

View full text Add to dashboard Cite

show abstract

“…27 Thus, the task poses high demands on balance control and the ability to modify movement kinetics, kinematics and spatiotemporal parameters to conform with the size of obstacles on the floor. [7][8][9]27 Then repetitive practice of the obstacle crossing task facilitated the improvement of functional ability as measured using the TUGT, FTSST and 10MWT. Importantly, the improvement was clearly seen in participants with chronic SCI.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, the task poses greater demands on the balance control, lower extremity motor strength and walking ability than unobstructed walking. [6][7][8][9] Currently, there is rare evidence on the incorporation of obstacle crossing training into rehabilitation practice for patients with SCI. Musselman et al 10 reported the benefit of an intensive and variable skill walking training program (including obstacle crossing) to improve walking ability in four participants with SCI.…”

Section: Introductionmentioning

confidence: 99%

Immediate effects of obstacle crossing training in independent ambulatory patients with spinal cord injury

et al. 2013

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Study design: A 2 Â 2 cross-over design. Objectives: To compare immediate effects of obstacle crossing training and conventional overground walking training on functional ability among independent ambulatory patients with spinal cord injury (SCI). Setting: A tertiary rehabilitation center, Thailand. Methods: Twenty independent ambulatory participants with SCI received a 1-day overground walking training and a 1-day obstacle crossing training program in a randomized cross-over design with a 2-day washout period. Immediately prior and after each training program, the functional ability of all participants was measured using the timed up and go test (TUGT), five times sit-to-stand test (FTSST) and 10-m walk test (10MWT). Results: The TUGT, FTSST and 10MWT data were significantly better after obstacle crossing training (Po0.001) but not after the overground walking training (P40.05). The improvement following obstacle crossing training was also significantly different from that of the overground walking training (Po0.05). Conclusion: Obstacle crossing training immediately enhanced functional ability related to walking of ambulatory participants with SCI. However, a further longitudinal study using a randomized controlled trial is needed to support benefits of incorporation of obstacle crossing training into rehabilitation practice.

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“…These were the final points used in calculating clearances The foot was projected onto a plane created from the vector of the stair's edge. Normal biomechanics were assumed, allowing the inference that ascending stairs would leave the toe closer to the edge and descending would leave the heel closer [15,25]. Therefore, heel clearance was analyzed for descending trials, whereas toe clearance was analyzed for ascending trials.…”

Section: Kinematic Data Processing and Analysismentioning

confidence: 99%

Foot clearance and variability in mono- and multifocal intraocular lens users during stair navigation

2016

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Abstract-Intraocular lenses (IOLs) provide distance and near refraction and are becoming the standard for cataract surgery. Multifocal glasses increase the variability of toe clearance in older adults navigating stairs and increase fall risk; however, little is known about the biomechanics of stair navigation in individuals with multifocal IOLs. This study compared clearance while ascending and descending stairs in individuals with monofocal versus multifocal IOLs. Eight participants with multifocal IOLs (4 men, 4 women; mean age = 66.5 yr, standard deviation [SD] = 6.26) and fifteen male participants with monofocal IOLs (mean age = 69.9 yr, SD = 6.9) underwent vision and mobility testing. Motion analysis recorded kinematic and custom software-calculated clearances in threedimensional space. No significant differences were found between groups on minimum clearance or variability. Clearance differed for ascending versus descending stairs: the first step onto the stair had the greatest toe clearance during ascent, whereas the final step to the floor had the greatest heel clearance during descent. This preliminary study indicates that multifocal IOLs have similar biomechanic characteristics to monofocal IOLs. Given that step characteristics are related to fall risk, we can speculate that multifocal IOLs carry no additional fall risk.

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Age and height effects on the center of mass and center of pressure inclination angles during obstacle-crossing

Cited by 82 publications

References 29 publications

Effects of a dual-task training on dynamic and static balance control of pre-frail elderly: a pilot study

Effects of a dual-task training on dynamic and static balance control of pre-frail elderly: a pilot study

Immediate effects of obstacle crossing training in independent ambulatory patients with spinal cord injury

Foot clearance and variability in mono- and multifocal intraocular lens users during stair navigation

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