heel height
depends on the aforementioned resources likewise ( Horak , 2006 ; Horak & Kuo , 2000 ). In terms of HH , we assume that the decreased perceived comfort and loss of joint position may lead to low perceived stability , compromising functional mobility accordingly ( Hong et al ., 2005 ; Lee & Hong , 2005 ).
The limitation of the study is that the results may not be extrapolated to all HHS populations from different ages and health statuses , considering that we only recruited healthy young females in our study . Besides , the neuromuscular mechanism of postural control in HHS wearers is still unknown . The effects of HH and long-term use of HHS on lower limb muscle activities , muscle coordination , and Hoffmann reflex need to be further studied to elucidate how CNS controls motor output in the postural control process . Furthermore , to provide evidence-based information for clinicians , more cohort studies can be conducted to explore the relationship between wearing experience and HHS-related injuries such as metatarsalgia and ankle sprain .
Conclusions
Perceived stability and functional mobility decreased when wearing HHS . The vision system had high weight in maintaining postural stability when HH increased to 10.1 cm . During dynamic perturbations , higher percentage of ankle strategies and motor control strategies was exhibited when wearing 3.9 cm HHS compared with flat shoes . In terms of HHS experience , experienced HHS wearers used higher proportion of ankle strategy and COG directional control in postural control than novices . In addition , experienced wearers perceived higher postural stability and showed better functional mobility . It is recommended that on evaluating the postural stability of HHS wearers , sensory organization ability , ankle strategy and COG directional control could be considered to be useful in developing a safety system and prevent HHS wearers from falling . y
Article Information
Original title - Decreased Vertical Trunk Inclination Angle and Pelvic Inclination as the Result of Mid-High-Heeled Footwear on Static Posture Parameters in Asymptomatic Young Adult Women
Acknowledgments The authors appreciate the kind participation of all the subjects . Funding Statement
This work was supported by the National Natural Science Foundation of China ( No . 11572202 , 11772201 , and 31700815 ) and the Postgraduate Foreign Academic Visiting Project from the Shanghai University of Sport ( No . stfx20190105 ). The funders had no role in study design , data collection and analysis , decision to publish , or preparation of the manuscript .
Additional Information and Declarations Competing Interests The authors declare there are no competing interests . Author Contributions Yiyang Chen conceived and designed the experiments ,
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