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Recent changes in evidence-based, non-pharmacological treatment recommendations for acupuncture and Tai Chi for knee osteoarthritis

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Journal of Sport and Health Science 2013年第3期2卷 158-159页

作者： songning zhang Biomechanics/Sports Medicine Laboratory Department of KinesiologyRecreation and Sport StudiesUniversity of Tennessee

Osteoarthritis(OA)is the most common form of *** knee and hip joints are the most common sites for OA,and knee OA is more prevalent than hip OA.1Knee OA patients often suffer pain,functional disability,articular carti... 详细信息

关键词：骨性关节炎药物治疗膝关节近期变化基础证据太极针灸

Recent developments on models and inclusion criteria for chronic ankle instability

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Journal of Sport and Health Science 2012年第3期1卷 170-171页

作者： songning zhang Biomechanics/Sports Medicine Laboratory Department of KinesiologyRecreation and Sport StudiesUniversity of Tennessee

In the most recent report of injury data on 15 sports from the *** Collegiate Athletic Association(NCAA) Injury Surveillance System over a span of 16 years (1988-2004),ankle ligament sprains were the most common *** symptoms such as recurrent sprains,pain, instability,and giving way are common after an initial,acute ligament *** ankle instability(CAI) is one of these common problems,and has enjoyed increased interest in the recent ***,CAI remains a poorly-defined and understood condition.

关键词： instability ligament ankle understood NCAA inclusi

Increased Q-Factor increases frontal-plane knee joint loading in stationary cycling

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Journal of Sport and Health Science 2020年第3期9卷 258-264页

作者： Tanner Thorsen Kelley Strohacker Joshua T.Weinhandl songning zhang Department of Kinesiology Recreation and Sport StudiesThe University of TennesseeKnoxvilleTN 37996USA

Background: Q-Factor(QF), or the inter-pedal width, in cycling is similar to step-width in gait. Although increased step-width has been shown to reduce peak knee abduction moment(KAbM), no studies have examined the biomechanical effects of increased QF in cycling at different workrates in healthy ***: A total of 16 healthy participants(8 males, 8 females, age: 22.4 ± 2.6 years, body mass index: 22.78 ± 1.43 kg/m^2, mean ± SD) participated.A motion capture system and customized instrumented pedals were used to collect 3-dimensional kinematic(240 Hz) and pedal reaction force(PRF)(1200 Hz) data in 12 testing conditions: 4 QF conditions—Q1(15.0 cm), Q2(19.2 cm), Q3(23.4 cm), and Q4(27.6 cm)—under 3 workrate conditions—80 watts(W), 120 W, and 160 W. A 3 × 4(QF × workrate) repeated measures of analysis of variance were performed to analyze differences among conditions(p < 0.05).Results: Increased QF increased peak KAbM by 47%, 56%, and 56% from Q1 to Q4 at each respective workrate. Mediolateral PRF increased from Q1 to Q4 at each respective workrate. Frontal-plane knee angle and range of motion decreased with increased QF. No changes were observed for peak vertical PRF, knee extension moment, sagittal plane peak knee joint angles, or range of ***: Increased QF increased peak KAbM, suggesting increased medial compartment loading of the knee. QF modulation may influence frontal-plane joint loading when using stationary cycling for exercise or rehabilitation purposes.

关键词： Cycling biomechanics Inter-pedal distance Knee abduction moment Knee adduction moment Q-Factor

Do ankle braces provide similar effects on ankle biomechanical variables in subjects with and without chronic ankle instability during landing?

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Journal of Sport and Health Science 2012年第2期1卷 114-120页

作者： songning zhang Michael Wortley Julia Freedman Silvernail Daniel Carson Maxime R.Paquette Biomechanics/Sports Medicine Laboratory Department of KinesiologyRecreation and Sport StudiesThe University of TennesseeKnoxvilleTN 37934.USA Pellissippi State Community College KnoxvilleTN 37933USA Department of Kinesiology University of MassachusettsAmherstMA 01003USA Biomechanics/Sports Medicine Laboratory Department of KinesiologyRecreation and Sport StudiesThe University of TennesseeKnoxvilleTN 37934USA

Purpose:The purpose of this study was to examine effects of a sport version of a semi-rigid ankle brace (ElementTM) and a soft ankle brace (ASO) on ankle biomechanics and ground reaction forces (GRFs) during a drop landing activity in subjects with chronic ankle instability (CAI)compared to healthy subjects with no history of ***:Ten healthy subjects and 10 subjects who had multiple ankle sprains participated in the study as the control and unstable subjects,*** CAI subjects were age,body mass index and gender matched with the control *** arch index and ankle functions of the subjects were measured in a subject screening *** the biomechanical test session,participants performed five trials of drop landing from 0.6 m,wearing no brace ( NB),ElementTM brace and ASO *** recording of three-dimensional kinematic (240 Hz)and GRF (1200 Hz) data were ***:The CAI subjects had lower ankle functional survey *** arch index and deformity results showed greater arch deformity of ElementTM against a static load than in NB and ASO due to greater initial arch position held by the *** participants had greater eversion velocity than healthy *** ASO brace reduced the first peak vertical GRF whereas ElementTM increased 2nd peak vertical *** brace reduced eversion range of motion (ROM) and peak eversion velocity compared to NB and *** addition,ElementTM reduced dorsiflexion ROM and increased peak plantarflexion moment compared to NB and ***:Results of static arch measurements and dynamic ankle motion suggest that the restrictions offered by both braces are in part due to more dorsiflexed ankle positions at contact,and higher initial arch position and stiffer ankle for ElementTM.

关键词： Drop landing Lateral ankle sprain Recurrent ankle sprain Semi-rigid ankle brace Soft ankle brace

Knee biomechanics of patients with total knee replacement during downhill walking on different slopes

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Journal of Sport and Health Science 2022年第1期11卷 50-57页

作者： Chen Wen Harold E.Cates Joshua T.Weinhandl Scott E.Crouter songning zhang Department of Kinesiology Recreationand Sport StudiesUniversity of TennesseeKnoxvilleTN 37996USA Tennessee Orthopedic Clinics KnoxvilleTN 37923USA

Purpose:The purpose of this study was to compare knee biomechanics of the replaced limb to the non-replaced limb of total knee replacement(TKR)patients and healthy controls during walking on level ground and on decline surfaces of 5°,10°,and 15°.Methods:Twenty-five TKR patients and 10 healthy controls performed 5 walking trials on different decline slopes on a force platform and an instrumented ramp *** analyses of variance,2×2(limb×group)and 2×4(limb×decline slope),were used to examine selected biomechanics ***:The replaced limb of TKR patients had lower peak loading-response and push-off knee extension moment than the non-replaced and the matched limb of healthy *** differences were found in loading-response and push-off knee internal abduction moments among replaced,non-replaced,and matched limb of healthy *** knee flexion range of motion,peak loading-response vertical ground reaction force,and peak knee extension moment increased across all slope comparisons between 0°and 15°in both the replaced and non-replaced limb of TKR ***:Downhill walking may not be appropriate to include in early stage rehabilitation exercise protocols for TKR patients.

关键词： Decline surface Knee adduction moment Knee joint moment Total knee arthroplasty

Alterations in neuromuscular activation patterns associated with walking in short-leg walking boots

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Journal of Sport and Health Science 2012年第1期1卷 43-48页

作者： Douglas Powell Kurt Clowers Maria Keefer songning zhang Neuromuscular Biomechanics Laboratory Fairmont State UniversityFairmontWVUSA Anthropometry and Biomechanics Facility NASA Johnson Space CenterHoustonTXUSA University of Texas Health Science Center HoustonTXUSA Biomechanics/Sports Medicine Laboratory The University of TennesseeKnoxvilleTNUSA

Short-leg walking boots are a common intervention for acute and chronic lower extremity *** studies have examined the neuromuscular adaptations associated with short-leg walking boots and no previous study has investigated timing characteristics of muscle activation during *** purpose of the current study was to examine the timing and amplitudes of muscle activation of the extrinsic ankle musculature during walking in two types of short-leg walking ***:Eleven healthy young adults performed five level walking trials at a self-selected pace in each of three conditions:normal walking,Gait Walker and Equalizer short-leg walking *** reaction forces were collected from a force platform while surface electromyography (EMG)was collected from the tibialis anterior,peroneus longus and medial *** signals were rectified and smoothed using the root mean squared with a 20-ms smoothing window and were normalized to the largest mean of the normal walking trials.A repeated measures analysis of variance was used to assess the effect of short-leg walking boots on the onset,duration and amplitude of muscle ***:Short-leg walking boots were generally associated with earlier onsets of muscle activation and longer durations of muscle ***,there was no reduction in EMG ***:The findings of this study show that the induced alterations in muscle activation patterns may limit the short-leg walking ***(C)2012,Shanghai University of *** and hosting by Elsevier *** rights reserved.

关键词： Electromyography Gait Short-leg walker Walking Walking boot

Effect of a combined inversion and plantarflexion surface on ankle kinematics and EMG activities in landing

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Journal of Sport and Health Science 2015年第4期4卷 377-383页

作者： Divya Bhaskaran Michael Wortley Qingjian Chen Clare E. Milner Eugene C. Fitzhugh songning zhang Physical Rehabilitation Science Program Department of Physical Therapy and Rehabilitation Science University of Minnesota Minneapolis MN 55455 USA Department of Exercise Science Wellness and Sports Georgian Court University Lakewood Township NJ 08701 USA Department of Kinesiology University of Maryland College Park MD 20742 USA Department of Physical Therapy and Rehabilitation Science Drexel University Philadelphia PA 19104 USA Biomechanics/Sports Medicine Laboratory Department of Kinesiology Recreation and Sport Studies The University of Tennessee Knoxville TN 37996 USA

Purpose： The purpose of this study was to examine the effects of landing kinematics and electromyographic （EMG） activities of medial gastrocnemius on a combined inversion and plantarflexion surface on the ankle （MG）, peroneus longus （PL）, and tibialis anterior （TA） muscles. Methods： Twelve recreational athletes performed five drop landings from an overhead bar of 30 cm height on to three surfaces： a flat surface, a 25° inversion surface, and a combined surface of 25° inversion and 25° plantarflexion. The kinematic variables and integrated EMG （IEMG） of the three muscles were assessed using a one-way repeated measures ANOVA and a 3 × 3 （surface × muscle） ANOVA, respectively （p 〈 0.05）. Results： The IEMG results showed a significant muscle by surface interaction. The flat surface induced higher TA activity than the two tilted surfaces. The inverted surface produced significantly higher inversion peak angle and velocity than the flat surface, but similar PL activity across the surfaces. The MG IEMG, ankle plantarflexion angle, and inversion range of motion were significantly higher for the combined surface compared to the inverted surface. Conclusion： These findings suggest that compared to the inversion surface, the combined plantarflexion and inversion surface seems to provide a more unstable surface condition for lateral ankle sprains during landing.

关键词： Drop landing Electromyography Inversion Lateral ankle sprain Plantarftexion

Effects of resistance and Tai Ji training on mobility and symptoms in knee osteoarthritis patients

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Journal of Sport and Health Science 2013年第4期2卷 209-214页

作者： Michael Wortley songning zhang Maxime Paquette Erin Byrd Lucas Baumgartner Gary Klipple John Krusenklaus Larry Brown Pellessippi State Community College Department of Kinesiology Recreation and Sport StudiesThe University of Tennessee Department of Health & Sport Sciences University of Memphis Department of Rheumatology The University of Tennessee Medical Center Tennessee Sports Medicine Group

Background:No studies have compared effectiveness of resistance training and Tai Ji exercise on relieving symptoms of knee osteoarthritis(OA).The purpose of the study was to evaluate effects of a 10-week Tai Ji and resistance training intervention on improving OA symptoms and mobility in seniors with knee ***:Thirty-one seniors(60-85 years)were randomly assigned to a Tai Ji program(n=12),a resistance training program(n=13),and a control group(n=6).All participants completed the Western Ontario and McMaster(WOMAC)Osteoarthritis Index and performed three physical performance tests(6-min walk,timed-up-and-go,and timed stair climb and descent)before and after the 10-week ***:The participants in the resistance training group significantly improved on the timed-up-and-go test(p<0.001),the WOMAC pain subscore(p=0.006),WOMAC stiffness sub-score(p<0.001),and WOMAC physical function sub-score(p=0.011).The Tai Ji group significantly improved on the timed-up-and-go test(p<0.001),but not on the WOMAC ***:Resistance training was effective for improving mobility and improving the symptoms of knee *** Ji was also effective for improving mobility,but did not improve knee OA symptoms.

关键词： Knee Osteoarthritis Resistance training Tai Chi Tai Ji

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煤矿通风瓦斯安全分区控制研究

煤矿现代化 2021年第1期30卷 179-181页

作者：张松宁晋能集团首阳煤业有限公司山西晋城048000

阐述了煤矿安全分区理论,安全分区即考虑了不同分区的特点,又可建立不同分区之间安全因素的联系,可构建长效的煤矿安全管理体系;分析了通风瓦斯安全分区技术,依据煤矿安全分区管理理论和通风瓦斯安全分区技术,结合网络技术、通信技术建... 详细信息

阐述了煤矿安全分区理论,安全分区即考虑了不同分区的特点,又可建立不同分区之间安全因素的联系,可构建长效的煤矿安全管理体系;分析了通风瓦斯安全分区技术,依据煤矿安全分区管理理论和通风瓦斯安全分区技术,结合网络技术、通信技术建立了煤矿通风瓦斯安全分区控制体系。

关键词：煤矿通风瓦斯安全分区