ORCID Profile
0000-0001-9531-9214
Current Organisation
Nanyang Technological University
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Publisher: Elsevier BV
Date: 07-2022
DOI: 10.1016/J.GAITPOST.2022.06.006
Abstract: Foot orthoses (FOs) are used to manage foot pathologies such as plantar fasciopathy. 3D printed custom-made FOs are increasingly being manufactured. Although these 3D-printed FOs look like traditionally heat-moulded FOs, there are few studies comparing FOs made using these two different manufacturing processes. How effective are 3D-printed FOs (3D-Print) compared to traditionally-made (Traditional) or no FOs (Control), in changing biomechanical parameters of flat-footed in iduals with unilateral plantar fasciopathy? Thirteen participants with unilateral plantar fasciopathy walked with shoes under three conditions: Control, 3D-print, and Traditional. 2 × 3 repeated measures analysis of variance (ANOVAs) with Bonferroni post-hoc tests were used to compare discrete kinematic and kinetic variables between limbs and conditions. Waveform analyses were also conducted using statistical parametric mapping (SPM). There was a significant condition main effect for arch height drop (p = 0.01 ηp 3D-printed FOs are more effective in reducing arch height drop, whist both FOs lowered ankle plantarflexion moment and power compared to no FOs. The results support the use of 3D-printed FOs as being equally effective as traditionally-made FOs in changing lower limb biomechanics for a population of flat-footed in iduals with unilateral plantar fasciopathy.
Publisher: Informa UK Limited
Date: 23-04-2020
Publisher: Informa UK Limited
Date: 16-07-2020
Publisher: Human Kinetics
Date: 10-2012
Abstract: We examined whether the momentary induction of state mindfulness benefited subsequent balance performance, taking into consideration the effects of dispositional mindfulness. We also tested whether our mindfulness induction, grounded in sustaining moment-to-moment attention, influenced the attentional focus strategies that were adopted by the participants during the balancing task. Balance performance was ascertained based on approximate entropy (ApEn) of the center of pressure (COP) data. The study involved 32 males (age: M = 22.8, SD = 1.94) who were randomly assigned to the mindfulness or control group. Using difference in pretest to posttest performance based on the medio-lateral movements as the dependent variable, the test for interaction showed that the mindfulness induction was more effective for participants with higher dispositional mindfulness. Participants who underwent mindfulness induction also reported greater use of external focus strategies than those in the control group. Results suggest that momentary mindful attention could benefit balance performance and affect the use of attentional focus strategies during movement control.
Publisher: Informa UK Limited
Date: 26-07-2023
Publisher: Human Kinetics
Date: 02-2018
Abstract: This study examined the effects of shoes’ segmented forefoot stiffness on athletic performance and ankle and metatarsophalangeal joint kinematics and kinetics in basketball movements. Seventeen university basketball players performed running vertical jumps and 5-m sprints at maximum effort with 3 basketball shoes of various forefoot plate conditions (medial plate, medial + lateral plates, and no-plate control). One-way repeated measures ANOVAs were used to examine the differences in athletic performance, joint kinematics, and joint kinetics among the 3 footwear conditions (α = .05). Results indicated that participants wearing medial + lateral plates shoes demonstrated 2.9% higher jump height than those wearing control shoes ( P = .02), but there was no significant differences between medial plate and control shoes ( P .05). Medial plate shoes produced greater maximum plantar flexion velocity than the medial + lateral plates shoes ( P .05) during sprinting. There were no significant differences in sprint time. These findings implied that inserting plates spanning both the medial and lateral aspects of the forefoot could enhance jumping, but not sprinting performances. The use of a medial plate alone, although induced greater plantar flexion velocity at the metatarsophalangeal joint during sprinting, was not effective in improving jump heights or sprint times.
Publisher: Springer Science and Business Media LLC
Date: 23-04-2019
Publisher: Ovid Technologies (Wolters Kluwer Health)
Date: 22-11-2021
DOI: 10.1097/PXR.0000000000000068
Abstract: Custom-made foot orthoses (FOs) play an integral part in managing foot disorders. Traditional FO fabrication is time-consuming and labor intensive. Three-dimensional (3D) printed FOs save time and cost compared with the traditional manufacturing process. To date, the differences in dimensions and comfort perception of these orthoses have not been compared in a pathological population. Compare the dimensions between 3D-printed and traditionally made FOs and comfort perception between 3D-printed, traditionally made, and no FOs in in iduals with flatfeet and unilateral heel pain. Within-subject single-blinded randomized crossover study design. Thirteen participants had custom-made FOs using 3D-printing and traditional processes. Orthotic lengths, widths, arch heights, and heel cup heights were compared. Participants performed walking trials under three conditions: (1) no orthoses, (2) 3D-printed orthoses, and (3) traditionally made orthoses. Comfort perception was recorded. Orthotic dimensions were compared using paired t tests, and comfort perception were compared using one-way multiple analysis of variance and Bonferroni post hoc tests. Three-dimensional–printed orthoses were wider, have higher arch heights, and heel cup heights compared with traditionally made FOs (medium to large effect sizes). There was a difference in comfort perception between the three orthotic conditions, F(12,62) = 1.99, P = 0.04 Wilk Λ = 0.521, η p 2 = 0.279. Post hoc tests show that there is no difference in comfort perception between the 3D-printed and traditionally made FOs. Both FOs were significantly more comfortable than no orthoses. Three-dimensional printing seems to be a viable alternative orthotic fabrication option. Future studies should compare the biomechanical effects of 3D-printed and traditionally made FOs.
Publisher: Human Kinetics
Date: 10-2022
DOI: 10.1123/MC.2021-0116
Abstract: The aim of this study was to establish the utility of the dance-specific balance test in examining the stability in postural control for dancers. Specifically, the method involves using the time taken to stabilize upon perturbation to quantify postural stability. The dance-specific balance test involved performing a four-step dance-like routine followed by a forward hop onto the force plate with one’s dominant leg, ending with an attempt to sustain balance for a 30-s period. Results from the dance-specific balance test indicated that dancers stabilize faster (0.45 ± 0.11 s) than nondancers (1.09 ± 0.59 s) t (35.39) = −6.16, p .001, Cohen’s d = 1.46. Dancers are found to be faster to adapt after a perturbation than nondancers, and this suggests the usability of this tool for assessing stability in dancers.
Publisher: Informa UK Limited
Date: 13-09-2022
Publisher: Informa UK Limited
Date: 12-2013
Location: United Kingdom of Great Britain and Northern Ireland
No related grants have been discovered for Pui Kong.