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Liu Y, Song Q, Liu Z, Dong S, Hiller C, Fong DTP, Shen P. Correlations of Postural Stability to Proprioception, Tactile Sensation, and Strength Among People With Chronic Ankle Instability. Motor Control 2024; 28:464-479. [PMID: 39025466 DOI: 10.1123/mc.2023-0084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 05/01/2024] [Accepted: 05/02/2024] [Indexed: 07/20/2024]
Abstract
OBJECTIVES The static and dynamic correlations of postural stability to its three potential contributors, namely, proprioception, tactile sensation, and strength remain unclear among people with chronic ankle instability (CAI). This study aimed to compare static and dynamic postural stability, along with proprioception, tactile sensation, and strength between people with and without CAI and explore their correlations. METHODS Sixty-seven participants with CAI and 67 participants without CAI were enrolled in this study. Ankle proprioception, plantar tactile sensation, and lower limb strength were measured by a proprioception test device, a set of monofilaments, and a strength testing system, respectively. Static and dynamic postural stability were measured during standing and jump landing on a force plate and indicated by the root mean square of center of pressure and time to stability. RESULTS Compared to people without CAI, people with CAI had poorer postural stability, proprioception, tactile sensation, and strength. Both groups demonstrated correlation between proprioception and static postural stability, but only people without CAI showed correlation between proprioception and dynamic postural stability. Both groups demonstrated a correlation between tactile sensation and static postural stability, but not with dynamic stability. Both groups demonstrated a correlation between strength and both static and dynamic postural stability. CONCLUSIONS People with CAI had deficits in static and dynamic postural stability, proprioception, tactile sensation, and strength. Among people with CAI, proprioception, tactile sensation, and strength can help maintain static postural stability; strength can help maintain dynamic postural stability, whereas proprioception may not provide sufficient information for dynamic postural stability.
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Affiliation(s)
- Yanhao Liu
- College of Sports and Health, Shandong Sport University, Jinan, SD, China
| | - Qipeng Song
- College of Sports and Health, Shandong Sport University, Jinan, SD, China
| | - Ziyin Liu
- College of Sports and Health, Shandong Sport University, Jinan, SD, China
| | - Shiyu Dong
- College of Sports and Health, Shandong Sport University, Jinan, SD, China
| | - Claire Hiller
- Sydney School of Health Sciences, The University of Sydney, Sydney, NSW, Australia
| | - Daniel T P Fong
- National Center for Sport and Exercise Medicine, Loughborough University, Loughborough, United Kingdom
| | - Peixin Shen
- College of Sports and Health, Shandong Sport University, Jinan, SD, China
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Sever O, Öztaşyonar Y, Ceylan Hİ, Miçooğullari BO, Morgans R, Bragazzi NL. Unveiling the influence of hip isokinetic strength on lower extremity running kinematics in male national middle-distance runners: a correlational analysis. BMC Sports Sci Med Rehabil 2024; 16:157. [PMID: 39030608 PMCID: PMC11264927 DOI: 10.1186/s13102-024-00946-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Accepted: 07/08/2024] [Indexed: 07/21/2024]
Abstract
BACKGROUND The relationship between hip strength deficiency in various planes and musculoskeletal injuries within the movement system has been well-established in numerous studies. The present study sought to explore the relationships between hip strength and specific aspects of lower extremity running kinematics. METHODOLOGY To achieve this objective, the three-dimensional running kinematics of 21 male elite middle-distance runners (mean age: 19.7 ± 1.2 years; mean experience 6.5 ± 1.0 years) were assessed using nine high-speed cameras on a treadmill at a speed of 16 km·h⁻¹. Concurrently, isokinetic hip strength was measured at a speed of 60 deg·s⁻¹ in both the dominant and non-dominant legs. The Pearson correlation coefficient and Paired Samples t-test were utilized. RESULTS While no significant differences were found in several isokinetic strength measurements, notable differences in running kinematics were observed. Specifically, pelvic drop at midstance (MS) was significantly lower in the DL (5.79 ± 3.00°) compared to the NDL (8.71 ± 1.39°) with a large effect size (t=-4.04, p < 0.001, Cohen's d = 1.25). Additionally, knee adduction at maximum showed a moderate effect size difference, with the DL at 2.99 ± 1.13° and the NDL at 3.81 ± 1.76° (t=-2.74, p = 0.03, Cohen's d = 0.55). Results indicated a moderate to highly positive association between running knee adduction in the dominant leg and hip external rotation (r = 0.67, p < 0.05), concentric extension (r = 0.77, p < 0.05), and concentric abduction (r = 0.78, p < 0.05). Additionally, the running tibial external rotation angle in the dominant leg exhibited an inverse relationship with all strength measurements, with statistical significance observed only for concentric extension force (r=-0.68, p < 0.05). Furthermore, hip internal rotation force demonstrated a highly inverse correlation with foot pronation in the dominant leg (r=-0.70, p < 0.05) and anterior pelvic tilt in the non-dominant leg (r=-0.76, p < 0.05). CONCLUSIONS These findings underscore the interrelation between hip strength and running kinematics, particularly on the dominant side. In light of these observations, it is imperative to consider hip strength exercises as integral components for correcting running kinematics. Coaches should also be mindful that kinematic deviations contributing to running injuries may manifest unilaterally or specifically in the dominant leg.
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Affiliation(s)
- Ozan Sever
- Faculty of Sport Sciences, Ataturk University, Erzurum, 25240, Turkey
| | - Yunus Öztaşyonar
- Faculty of Sport Sciences, Ataturk University, Erzurum, 25240, Turkey
| | - Halil İbrahim Ceylan
- Physical Education and Sports Teaching Department, Kazim Karabekir Faculty of Education, Ataturk University, Erzurum, 25240, Turkey.
| | | | - Ryland Morgans
- School of Sport and Health Sciences, Cardiff Metropolitan University, Cardiff, UK
| | - Nicola Luigi Bragazzi
- Laboratory for Industrial and Applied Mathematics (LIAM), Department of Mathematics and Statistics, York University, Toronto, Canada.
- Human Nutrition Unit (HNU), Department of Food and Drugs, Medical School, University of Parma, Building C, Via Volturno, 39, Parma, 43125, Italy.
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Si B, Zhu H, Wei X, Li S, Wu X. The mechanism of static postural control in the impact of lower limb muscle strength asymmetry on gait performance in the elderly. PeerJ 2024; 12:e17626. [PMID: 38948226 PMCID: PMC11214735 DOI: 10.7717/peerj.17626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 06/02/2024] [Indexed: 07/02/2024] Open
Abstract
Background Abnormal gait is prevalent among the elderly population, leading to reduced physical activity, increased risk of falls, and the potential development of dementia and disabilities, thus degrading the quality of life in later years. Numerous studies have highlighted the crucial roles of lower limb muscle strength asymmetry and static postural control in gait, and the reciprocal influence of lower limb muscle strength asymmetry on static postural control. However, research exploring the interrelationship between lower limb muscle strength asymmetry, static postural control, and gait performance has been limited. Methods A total of 55 elderly participants aged 60 to 75 years were recruited. Isokinetic muscle strength testing was used to assess bilateral knee extension strength, and asymmetry values were calculated. Participants with asymmetry greater than 15% were categorized as the Asymmetry Group (AG), while those with asymmetry less than 15% were classified in the Symmetry Group (SG). Gait parameters were measured using a plantar pressure gait analysis system to evaluate gait performance, and static postural control was assessed through comfortable and narrow stance tests. Results First, participants in the AG demonstrated inferior gait performance, characterized by slower gait speed, longer stance time and percentage of stance time in gait, and smaller swing time and percentage of swing time in gait. Spatial-temporal gait parameters of the weaker limb tended to be abnormal. Second, static postural control indices were higher in AG compared to SG in all aspects except for the area of ellipse during the comfortable stance with eyes open test. Third, abnormal gait parameters were associated with static postural control. Conclusion Firstly, elderly individuals with lower limb muscle strength asymmetry are prone to abnormal gait, with the weaker limb exhibiting poorer gait performance. Secondly, lower limb muscle strength asymmetry contributes to diminished static postural control in the elderly. Thirdly, the mechanism underlying abnormal gait in the elderly due to lower limb muscle strength asymmetry may be linked to a decline in static postural control.
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Affiliation(s)
- Beili Si
- School of Physical Education, Shanghai University of Sport, Shanghai, China
| | - Hao Zhu
- School of Psychology, Shanghai University of Sport, Shanghai, China
| | - Xinmei Wei
- School of Economics and Management, Shanghai University of Sport, Shanghai, China
| | - Shun Li
- School of Physical Education, Shanghai University of Sport, Shanghai, China
| | - Xueping Wu
- School of Physical Education, Shanghai University of Sport, Shanghai, China
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Ghai S, Nilson F, Gustavsson J, Ghai I. Influence of compression garments on proprioception: A systematic review and meta-analysis. Ann N Y Acad Sci 2024; 1536:60-81. [PMID: 38722733 DOI: 10.1111/nyas.15144] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/19/2024]
Abstract
Compression garments (CGs) are commonly used in rehabilitation and sports contexts to enhance performance and speed up recovery. Despite the growing use of CGs in recent decades, there is no unanimous consensus on their overall influence on joint proprioception. In this current meta-analysis, we aim to fill this knowledge gap by assessing the impact of CGs on joint proprioception. We conducted a literature search across seven databases and one registry. Ultimately, we included 27 studies with 671 participants. The meta-analysis revealed that wearing CGs resulted in a significant reduction in absolute error during joint position sensing (Hedges' g: -0.64, p = 0.006) as compared to no CGs. However, further analyses of variables such as constant error (p = 0.308), variable error (p = 0.541) during joint position sense tests, threshold to detect passive motion (p = 0.757), and active movement extent discrimination (p = 0.842) did not show a significant impact of CGs. The review also identified gaps in the reporting of certain outcomes, such as parameters of CGs, reporting of performance, individual-reported outcomes, and lack of placebo comparators. Consequently, this review provides guidelines for future studies that may facilitate evidence-based synthesis and ultimately contribute to a better understanding of the overall influence of CGs on joint proprioception.
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Affiliation(s)
- Shashank Ghai
- Department of Political, Historical, Religious and Cultural Studies, Karlstad University, Karlstad, Sweden
- Centre for Societal Risk Research, Karlstad University, Karlstad, Sweden
| | - Finn Nilson
- Department of Political, Historical, Religious and Cultural Studies, Karlstad University, Karlstad, Sweden
- Centre for Societal Risk Research, Karlstad University, Karlstad, Sweden
- Institute of Civil Society Research, Marie Cederschiold University, Stockholm, Sweden
| | - Johanna Gustavsson
- Department of Political, Historical, Religious and Cultural Studies, Karlstad University, Karlstad, Sweden
- Centre for Societal Risk Research, Karlstad University, Karlstad, Sweden
| | - Ishan Ghai
- School of Life Sciences, Jacobs University Bremen, Bremen, Germany
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Hao Z, Cheng X, Jiang H, Yang J, Li Y, Ambrose Lo WL, Yu Q, Wang C. The associations between lumbar proprioception and postural control during and after calf vibration in people with and without chronic low back pain. Front Bioeng Biotechnol 2024; 12:1329437. [PMID: 38572361 PMCID: PMC10987701 DOI: 10.3389/fbioe.2024.1329437] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2023] [Accepted: 01/19/2024] [Indexed: 04/05/2024] Open
Abstract
The relationships of lumbar proprioception with postural control have not been clarified in people with chronic low back pain. This study aimed to compare the associations between lumbar proprioception and postural control in response to calf vibration in individuals with and without chronic low back pain. In this study, we recruited twenty patients with chronic low back pain (CLBP group) and twenty healthy control subjects (HC group) aged between 18 and 50 years. This study was a cross-sectional study and completed from May 2022 to October 2022. The passive joint repositioning sense (PJRS) test for two positions (15° and 35°) were used to assess lumbar proprioception and expressed as the mean of reposition error (RE). Postural control was tested by adding and removing calf vibration while standing on a stable force plate with eyes closed. The sway velocity in the anterior-posterior (AP) direction of center of pressure (COP) data with a window of 15s epoch at baseline, during and after calf vibration was used to evaluate postural control. Mann-Whitney U-tests were used to compare the difference of lumbar proprioception between two groups, and the independent t-tests were used to compare the difference of postural control at baseline and during vibration, and a mixed design ANOVA was used to compare the difference of postural control during post-perturbation. In addition, to explore the association between postural control and lumbar proprioception and pain intensity, Spearman's correlations were used for each group. The major results are: (1) significantly higher PJRS on RE of 15° (CLBP: 95% CI [2.03, 3.70]; HC: 95% CI [1.03, 1.93]) and PJRS on RE of 35° (CLBP: 95% CI [2.59, 4.88]; HC: 95% CI [1.07, 3.00]) were found in the CLBP group; (2) AP velocity was not different between the CLBP group and the HC group at baseline and during calf vibration. However, AP velocity was significantly larger in the CLBP group compared with the HC group at epoch 2-14 after calf vibration, and AP velocity for the CLBP group took a longer time (23 epochs) to return to the baseline after calf vibration compared with the HC group (9 epochs); (3) lumbar proprioception represented by PJRS on RE of 15°correlated negatively with AP velocity during and after vibration for the HC group. Within the CLBP group, no significant relationships between PJRS on RE for two positions (15° and 35°) and AP velocity in any postural phases were found. In conclusion, the CLBP group has poorer lumbar proprioception, slower proprioceptive reweighting and impaired postural control after calf vibration compared to the HC group. Lumbar proprioception offers different information on the control strategy of standing control for individuals with and without CLBP in the situations with proprioceptive disturbance. These results highlight the significance of assessing lumbar proprioception and postural control in CLBP patients.
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Affiliation(s)
- Zengming Hao
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Xue Cheng
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Haimei Jiang
- Department of Rehabilitation Medicine, The 10th Affiliated Hospital of Southern Medical University (Dongguan People’s Hospital), Dongguan, China
| | - Jiajia Yang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Yan Li
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wai Leung Ambrose Lo
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
- Guangdong Engineering and Technology Research Center for Rehabilitation Medicine and Translation, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qiuhua Yu
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chuhuai Wang
- Department of Rehabilitation Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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Alkhamis BA, Reddy RS, Alahmari KA, Alshahrani MS, Koura GM, Ali OI, Mukherjee D, Elrefaey BH. Balancing act: Unraveling the link between muscle strength, proprioception, and stability in unilateral hip osteoarthritis. PLoS One 2024; 19:e0298625. [PMID: 38363786 PMCID: PMC10871501 DOI: 10.1371/journal.pone.0298625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Accepted: 01/27/2024] [Indexed: 02/18/2024] Open
Abstract
The objectives of this study are to compare hip muscle strength, hip joint proprioception, and functional balance between individuals with unilateral hip OA and asymptomatic individuals and to examine the relationships among these variables in the hip OA population. In a prospective cross-sectional study, 122 participants (unilateral Hip OA: n = 56, asymptomatic: n = 56) were assessed at the CAMS/KKU musculoskeletal Physical Therapy laboratory. Ethical standards were upheld throughout the research, with informed consent obtained. Hip muscle strength was measured using a hand-held dynamometer, hip joint proprioception with a digital inclinometer, and functional balance using the Berg Balance Scale (BBS) and Timed Up and Go (TUG) test. Hip OA individuals exhibited significantly lower muscle strength and proprioceptive accuracy, and poorer functional balance than controls (p < 0.003). Correlation analyses revealed a positive correlation between muscle strength and BBS scores (r = 0.38 to 0.42) and a negative correlation with TUG test times (r = -0.36 to -0.41). Hip joint reposition sense (JRS) in flexion showed a negative correlation with balance (r = -0.46), while JRS in abduction was positively correlated (r = 0.46). The study highlights the clinical importance of muscle strength and proprioception in functional balance among individuals with unilateral hip OA. The results support the incorporation of muscle strengthening and proprioceptive training in interventions to improve balance and mobility in this population.
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Affiliation(s)
- Batool Abdulelah Alkhamis
- Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Ravi Shankar Reddy
- Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Khalid A. Alahmari
- Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Mastour Saeed Alshahrani
- Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Ghada Mohammed Koura
- Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Olfat Ibrahim Ali
- Physical Therapy Program, Batterjee Medical College, Jeddah, Saudi Arabia
| | - Debjani Mukherjee
- Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
| | - Basant Hamdy Elrefaey
- Department of Medical Rehabilitation Sciences, College of Applied Medical Sciences, King Khalid University, Abha, Saudi Arabia
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Valdés-Badilla P, Guzmán-Muñoz E, Hernandez-Martinez J, Núñez-Espinosa C, Delgado-Floody P, Herrera-Valenzuela T, Branco BHM, Zapata-Bastias J, Nobari H. Effectiveness of elastic band training and group-based dance on physical-functional performance in older women with sarcopenia: a pilot study. BMC Public Health 2023; 23:2113. [PMID: 37891589 PMCID: PMC10604857 DOI: 10.1186/s12889-023-17014-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2023] [Accepted: 10/18/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND Sarcopenia is a syndrome associated with aging that causes progressive loss of skeletal muscle mass and muscle function. In this pilot study, we compared the effectiveness of elastic band training regarding group-based dance on fat mass, fat-free mass, handgrip strength (HGS; dominant and non-dominant hand), leg strength, timed up-and-go (TUG) and walking speed in older women with sarcopenia. METHODS This is a randomized controlled trial, single-blind, repeated measures of parallel groups (elastic band group: EBG, n = 21; group-based dance: GBD, n = 19), and a quantitative methodology. Three 60-minute sessions per week for 12 weeks were dedicated to the interventions with pre- and post-assessments. A two-factor mixed analysis of variance (ANOVA) model with repeated measures was performed to measure the group×time effect. RESULTS A significant interaction revealed for fat-free mass (F1,16= 18.91; p < 0.001; EBG + 10.9% vs. GBD - 1.97%), HGS dominant hand (F1,16= 7.44; p = 0.014; EBG + 10.9% vs. GBD + 0.59%), HGS non-dominant hand (F1,16= 6.41; p = 0.022; EBG + 10.21% vs. GBD + 3.80%), leg strength (F1,16= 17.98; p < 0.001; EBG + 9.1% vs. GBD + 3.83%), TUG (F1,16= 7.52; p = 0.014; EBG - 14.7% vs. GBD - 1.0%) and walking speed (F1,16 = 6.40; p = 0.019; EBG - 7.6% vs. GBD - 4.35%) in favor of EBG. CONCLUSION Elastic band training produces significantly greater responses on physical-functional performance regarding group-based dance in older women with sarcopenia. On the other hand, the EBG revealed a significant improvement in fat-free mass and upper and lower limb muscle strength, as well as a significant decrease time in TUG, and walking speed. Elastic band exercise is a safe, easy, affordable, and effective physical activity strategy, according to the findings.
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Affiliation(s)
- Pablo Valdés-Badilla
- Department of Physical Activity Sciences, Faculty of Education Sciences, Universidad Católica del Maule, Talca, 3530000, Chile
- Sports Coach Career, School of Education, Universidad Viña del Mar, 2520000, Viña del Mar, Chile
| | - Eduardo Guzmán-Muñoz
- School of Kinesiology, Faculty of Health, Universidad Santo Tomás, Talca, 3460000, Chile
- School of Kinesiology, Faculty of Health Sciences, Universidad Autónoma de Chile, Talca, 3460000, Chile
| | - Jordan Hernandez-Martinez
- Programa de Investigación en Deporte, Sociedad y Buen Vivir, Universidad de los Lagos, Osorno, 5290000, Chile
- Department of Physical Activity Sciences, Universidad de Los Lagos, Osorno, 5290000, Chile
| | - Cristian Núñez-Espinosa
- School of Medicine, University of Magallanes, Punta Arenas, 6200000, Chile
- Centro Asistencial Docente e Investigación, Universidad de Magallanes, Punta Arenas, 6200000, Chile
- Interuniversity Center for Healthy Aging, Punta Arenas, 6200000, Chile
| | - Pedro Delgado-Floody
- Department of Physical Education, Sport, and Recreation, Universidad de La Frontera, Temuco, 4811230, Chile
- Department Physical Education and Sports, Faculty of Sport Sciences, University of Granada, Granada, 18011, Spain
| | - Tomás Herrera-Valenzuela
- Department of Physical Activity, Sports and Health Sciences, Faculty of Medical Sciences, Universidad de Santiago de Chile (USACH), Santiago, 8370003, Chile
| | | | - José Zapata-Bastias
- Sports Coach Career, School of Education, Universidad Viña del Mar, 2520000, Viña del Mar, Chile
| | - Hadi Nobari
- Department of Exercise Physiology, Faculty of Educational Sciences and Psychology, University of Mohaghegh Ardabili, Ardabil, Iran.
- Faculty of Sport Sciences, University of Extremadura, Cáceres, Spain.
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Liu L, Jia M, Ma Y, Lin S, Peng Q, Xiong J, Zheng W. Biomechanics research on laterality effect between dominant and non-dominant during double roundhouse kick in the competitive taekwondo. Heliyon 2023; 9:e20843. [PMID: 37876451 PMCID: PMC10590780 DOI: 10.1016/j.heliyon.2023.e20843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 10/06/2023] [Accepted: 10/09/2023] [Indexed: 10/26/2023] Open
Abstract
Background The Double Roundhouse Kick (DRK) is one of the major scoring tools and athletes employ the leg of the dominant side (DS) or the non-dominant side (NS) for always attacking in an alternating state. The purpose is to examine the discrepancies in the biomechanical characteristics of the DS and NS of the leg of the DRK skills of sub-elite taekwondo athletes. Methods Using the Vicon, Kistler, and Daedo brand Electronic Body Protector (EBP), collection of the DRK data (attack time, joint angle, joint angular velocity, joint moment, ground reaction force, etc.) of 12 sub-elite taekwondo athletes (19.6 ± 2.0 yr, 180 ± 7.3 cm, 70 ± 9.8 kg) with the DS leg and NS leg. The measured data analyses via Visual3D, and statistical methods using nonparametric tests paired with samples based on the Wilcoxon signed-rank test (The significance level is set as significant for P<0.05, and very significant for P<0.01). Results (i) There is no statistically significant discrepancy between the DS and NS at the time of hit (P>0.05) and shift of the center of gravity (P>0.05). (ii) Attacking leg (AL): the maximum knee flexion angle (Knee-MFA) (P<0.05) and the peak linear velocity of attack of the foot in the vertical hitting direction (P<0.01) on the DS was greater than that on the NS during the first hit phase (P1). (iii) Supporting leg (SL): the peak hip extension moment (P<0.05) on the DS was reported to be higher than that of the NS during the second hit phase (P2). (iv) Symmetry Index (SI): In the P1, the vertical ground reaction force (vGRF) of the SL leads to SI = 10.19 %, and in the P2, the vGRF of the SL results in SI = 18.48 %. Conclusions The DRK requires more and more symmetry between the DS and NS. The Knee-MFA of the AL and the line of attack speed of the foot in the vertical striking direction of the SL exhibited significant discrepancies. The DS has higher striking speed, athletes need to improve the striking speed of the NS leg in training, achieving more scoring opportunities in the game. Both the DS and NS revealed strong symmetry in the peak SI of the ground reaction force of the SL stirrup; however, weak symmetry was attained in the peak SI of the vGRF of the SL landing cushion.
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Affiliation(s)
- Lin Liu
- Engineering Research Center of Sports Health Intelligent Equipment of Hubei Province, Wuhan Sports University, Wuhan, 430079, China
- Research Center of Sports Equipment Engineering Technology of Hubei Province, Wuhan Sports University, Wuhan, 430079, China
- Key Laboratory of Sports Engineering of General Administration of Sport of China, Wuhan Sports University, Wuhan, 430079, China
| | - Mengyao Jia
- Engineering Research Center of Sports Health Intelligent Equipment of Hubei Province, Wuhan Sports University, Wuhan, 430079, China
- Research Center of Sports Equipment Engineering Technology of Hubei Province, Wuhan Sports University, Wuhan, 430079, China
- Key Laboratory of Sports Engineering of General Administration of Sport of China, Wuhan Sports University, Wuhan, 430079, China
| | - Yong Ma
- Engineering Research Center of Sports Health Intelligent Equipment of Hubei Province, Wuhan Sports University, Wuhan, 430079, China
- Research Center of Sports Equipment Engineering Technology of Hubei Province, Wuhan Sports University, Wuhan, 430079, China
- Key Laboratory of Sports Engineering of General Administration of Sport of China, Wuhan Sports University, Wuhan, 430079, China
| | - Shijie Lin
- Department of Physical Education, Northwest Polytechnical University, Xi'an, 710072, China
| | - Qian Peng
- Engineering Research Center of Sports Health Intelligent Equipment of Hubei Province, Wuhan Sports University, Wuhan, 430079, China
- Research Center of Sports Equipment Engineering Technology of Hubei Province, Wuhan Sports University, Wuhan, 430079, China
- Key Laboratory of Sports Engineering of General Administration of Sport of China, Wuhan Sports University, Wuhan, 430079, China
| | - Jun Xiong
- School of Competitive Sports, Wuhan Sports University, Wuhan, 430079, China
| | - Weitao Zheng
- Engineering Research Center of Sports Health Intelligent Equipment of Hubei Province, Wuhan Sports University, Wuhan, 430079, China
- Research Center of Sports Equipment Engineering Technology of Hubei Province, Wuhan Sports University, Wuhan, 430079, China
- Key Laboratory of Sports Engineering of General Administration of Sport of China, Wuhan Sports University, Wuhan, 430079, China
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Tapanya W, Maharan S, Sangkarit N, Poncumhak P, Konsanit S. Using a Standing Heel-Rise Test as a Predictor of Ankle Muscle Strength in the Elderly. Sports (Basel) 2023; 11:146. [PMID: 37624126 PMCID: PMC10459321 DOI: 10.3390/sports11080146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/17/2023] [Accepted: 08/01/2023] [Indexed: 08/26/2023] Open
Abstract
The senior population is at increased risk of falling due to a reduction in ankle muscle strength. Evaluating the strength of the ankle muscles in older adults is of paramount importance. The purpose of this study was to formulate an equation to estimate ankle muscle strength by utilizing the basic physical characteristics of the subject and the variables related to their ability to perform the standing heel-rise test (SHRT). One hundred and thirty-two healthy elderly participants (mean age 67.30 ± 7.60) completed the SHRT and provided demographic information. Ankle plantar flexor (PF) muscle strength was evaluated using a push-pull dynamometer. Multiple regression analysis was utilized to develop a prediction equation for ankle PF muscle strength. The study revealed that the ankle PF strength equation was derived from variables including the power index of the SHRT, gender, age, calf circumference, and single-leg standing balance test. The equation exhibited a strong correlation (r = 0.816) and had a predictive power of 65.3%. The equation is represented as follows: ankle PF strength = 24.31 - 0.20(A) + 8.14(G) + 0.49(CC) + 0.07(SSEO) + 0.20(BW/t-SHRT). The equation had an estimation error of 5.51 kg. The strength of ankle PFs in elderly individuals can be estimated by considering demographic variables, including gender, age, calf circumference, single-leg standing balance test, and the power index of the SHRT. These factors were identified as significant determinants of ankle PF strength in this population.
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Affiliation(s)
- Weerasak Tapanya
- Department of Physical Therapy, School of Allied Health Sciences, University of Phayao, Phayao 56000, Thailand; (S.M.); (N.S.); (P.P.); (S.K.)
| | - Sinthuporn Maharan
- Department of Physical Therapy, School of Allied Health Sciences, University of Phayao, Phayao 56000, Thailand; (S.M.); (N.S.); (P.P.); (S.K.)
- Unit of Excellence of Human Potential Development and Herbs, University of Phayao, Phayao 56000, Thailand
| | - Noppharath Sangkarit
- Department of Physical Therapy, School of Allied Health Sciences, University of Phayao, Phayao 56000, Thailand; (S.M.); (N.S.); (P.P.); (S.K.)
| | - Puttipong Poncumhak
- Department of Physical Therapy, School of Allied Health Sciences, University of Phayao, Phayao 56000, Thailand; (S.M.); (N.S.); (P.P.); (S.K.)
| | - Saisunee Konsanit
- Department of Physical Therapy, School of Allied Health Sciences, University of Phayao, Phayao 56000, Thailand; (S.M.); (N.S.); (P.P.); (S.K.)
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Shi X, Zhang F. Analysis of the Hanging Actions and Operating Heights of Storage Furniture Suitable for the Elderly. SENSORS (BASEL, SWITZERLAND) 2023; 23:3850. [PMID: 37112191 PMCID: PMC10145950 DOI: 10.3390/s23083850] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Revised: 03/10/2023] [Accepted: 03/31/2023] [Indexed: 06/19/2023]
Abstract
The current functional scale design of storage furniture which the elderly use does not meet their needs, and unsuitable storage furniture may bring many physiological and psychological problems to their daily lives. The purpose of this study is to start with the hanging operation, to study the factors influencing the hanging operation heights of elderly people undergoing self-care in a standing posture and to determine the research methods to be used to study the appropriate hanging operation height of the elderly so as to provide data and theoretical support for the functional design scale of storage furniture suitable for the elderly. This study quantifies the situations of elderly people's hanging operation through an sEMG test performed on 18 elderly people at different hanging heights combined with a subjective evaluation before and after the operation and a curve fitting between the integrated sEMG indexes and the test heights. The test results show that the height of the elderly subjects had a significant effect on the hanging operation, and the main power muscles of the suspension operation were the anterior deltoid, upper trapezius and brachioradialis. Elderly people in different height groups had their own performance of the most comfortable hanging operation ranges. The suitable range for the hanging operation was 1536-1728 mm for seniors aged 60 or above whose heights were within the range of 1500-1799 mm, which could obtain a better action view and ensure the comfort of the operation. External hanging products, such as wardrobe hangers and hanging hooks, could also be determined according to this result.
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11
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Liu Z, Wang Q, Sun W, Song Q. Balancing sensory inputs: somatosensory reweighting from proprioception to tactile sensation in maintaining postural stability among older adults with sensory deficits. Front Public Health 2023; 11:1165010. [PMID: 37213635 PMCID: PMC10194835 DOI: 10.3389/fpubh.2023.1165010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Accepted: 03/27/2023] [Indexed: 05/23/2023] Open
Abstract
Background Sensory deficits increase the risk of falls among older adults. The purpose of this study was to investigate the correlations of lower extremity muscle strength, proprioception, and tactile sensation to postural stability among older adults with and without sensory deficits, to understand the contribution of each factor to postural stability, and to explore sensory reweighting among the two populations. Methods A total of 103 participants were recruited and divided into two older adult groups with (female = 24, male = 26, age = 69.1 ± 3.15 years, height = 162.72 ± 6.94 cm, body mass = 64.05 ± 9.82 kg) and without sensory deficits (female = 26, male = 27, age = 70.02 ± 4.9 years, height = 163.76 ± 7.60 cm, body mass = 65.83 ± 10.31 kg), based on whether a 5.07 Semmes-Weinstein monofilament could be detected at foot soles. Their Berg Balance Scale (BBS), lower extremity muscle strength, proprioception, and tactile sensation were tested and compared between the two groups. Pearson's or Spearman's correlations were used to explore the relationships between the BBS and each variable. Factor analysis and multivariate linear regression were used to verify the degrees of correlation between the generated factors and the postural stability. Results Low BBS (p = 0.003, η2 = 0.088) scores and higher proprioception thresholds (knee flexion: p = 0.015, η2 = 0.059; knee extension: p = 0.011, η2 = 0.065; ankle plantarflexion: p = 0.006, η2 = 0.075; ankle dorsiflexion: p = 0.001, η2 = 0.106) were detected among older adults with sensory deficits compared with those without sensory deficits. Lower extremity muscle strength (ankle plantarflexion: r = 0.342, p = 0.002; hip abduction: r = 0.303, p = 0.041) and proprioception (knee flexion: r = -0.419, p = 0.004; knee extension: r = -0.292, p = 0.049; ankle plantarflexion: r = -0.450, p = 0.002; ankle dorsiflexion: r = -0.441, p = 0.002) were correlated with BBS among older adults without sensory deficits, while lower extremity muscle strength (ankle plantarflexion: r = 0.501, p<0.001; hip abduction: r = 0.302, p = 0.041) and tactile sensation (great toe: r = -0.388, p = 0.008; 5th metatarsal: r = -0.301, p = 0.042) were correlated with BBS among older adults with sensory deficits. Conclusion Older adults with sensory deficits have poorer proprioception and postural stability. Somatosensory reweighting occurs from proprioception to tactile sensation among older adults with sensory deficits in maintaining postural stability.
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