Postural Control and Functional Ankle Stability in Professional and Amateur Skateboarders

Basic maneuvers in skateboarding, such as the ollie, put the player at high risk for ankle injuries because of the position of the feet required to perform the maneuvers. This study investigated ankle stability and reaction time for the tibialis anterior, fibularis longus, and fibularis brevis in professional and amateur skateboarders. In total, 16 professional and 16 amateur skateboarders were recruited as participants and underwent range of motion assessments, balance testing, and muscle reaction time measurements. The results revealed that professional skateboarders had a significantly smaller inversion angle compared to amateur players, which suggested better joint control and hence greater safety in the former. Balance testing results indicated better balance in professional skateboarders, and healthy skateboarders had better balance than did injured professional and amateur skateboarders. No significant difference in muscle reaction time was observed between amateur and professional skateboarders.

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Ankle range of motion and dynamic balance in recreational Sepak Takraw players with and without ankle injury - a comparative study

Pedagogy of Physical Culture and Sports ◽

10.15561/26649837.2021.0603 ◽

2021 ◽

Vol 25 (6) ◽

pp. 355-360

Author(s):

Jessica Phan Zhi Xin ◽

Rajkumar Krishnan Vasanthi ◽

Vinosh Kumar Purushothaman ◽

Ali Md. Nadzalan

Keyword(s):

Range Of Motion ◽

Dynamic Balance ◽

Position Statement ◽

Cross Sectional Study ◽

Ankle Injury ◽

Ankle Injuries ◽

Balance Test ◽

Cross Sectional ◽

Ankle Eversion ◽

Significant Difference

Background and Study Aim. Sepak Takraw (ST) is considered Malaysia's national sport, and the nature of this sport requires players to be sufficiently acrobatic. Therefore, players were expected to jump and regain their balance, challenging their dynamic balance (DB). Nonetheless, range of motion (ROM) is closely related to balance. Hence, this study aimed to compare recreational ST players' ankle ROM and DB differences with and without ankle injuries. Material and Methods. The cross-sectional study in which 30 participants were assigned purposively according to players with an ankle injury (n=15) and without ankle injury (n=15) based on the position statement of the International Ankle Consortium (IAC). One time ankle Range of Motion and Dynamic balance was measured using a universal goniometer and Star Excursion Balance Test (SEBT), respectively, for both groups. Results. Independent T-test was performed to identify the significant differences (p<0.05) of SEBT and ROM between the non-injured leg and injured leg within the injured group to the non-injured group. Ankle eversion and dorsiflexion between the injured and non-injured groups did not show any significant difference with p=0.35 & p=0.53, respectively. As for SEBT, only posteromedial and medial of the injured leg did not show a significant difference p>0.05. All other ankles ROM and the SEBT score demonstrated a statistically significant difference p<0.05. Conclusions. ROM and DB training/rehabilitation should be incorporated to all the injured group ST sports players regardless of which leg is affected to optimize ankle function and the game performance.

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The effects of wearing high heeled shoes on the muscles and joints of lower limb

Biomedical Human Kinetics ◽

10.2478/bhk-2021-0011 ◽

2021 ◽

Vol 13 (1) ◽

pp. 81-96

Author(s):

Sema Polat ◽

Ayşe Gül Kabakcı

Keyword(s):

Lower Extremity ◽

Range Of Motion ◽

Tibialis Anterior ◽

Muscle Force ◽

Plantar Flexion ◽

Tibialis Anterior Muscle ◽

Metatarsophalangeal Joint ◽

Heel Height ◽

Lower Extremity Muscle ◽

Significant Difference

Abstract Study aim: The aim of this study is to investigate whether the lower extremity muscles’ force/torque/strength and range of motion may be affected in females wearing high heeled shoes and not wearing high heeled shoes. Material and methods: The study was carried out with 136 females aged between 18 and 45 years. The first group consisted of 66 females wearing 5 cm or higher high heeled shoes. The second group consisted of 70 females wearing shoes having heel height less than 5 cm. The Nicholas Manual Muscle Tester was used to evaluate lower extremity muscle force/torque/strength, while range of motion was assessed with an electronic goniometer. The SPSS 21.0 program was used for statistical analysis. Results: A significant difference was found in the lower extremity muscles’ force (except for hip adduction, dorsiflexion, metatarsophalangeal joint and interphalangeal joint extension), and muscles’ torque (except for hip adduction, dorsiflexion and left tibialis anterior muscle) and muscles’ strength values (except for hip adduction, dorsiflexion and tibialis anterior muscle). Also, as heel height increased, the range of motion of hip joint flexion, internal rotation and plantar flexion increased significantly. Conclusions: Excessive use of high heeled shoes can cause changes in muscle force/torque/strength and joint range of motion.

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Acute Effect of Ankle Kinesio and Athletic Taping on Ankle Range of Motion During Various Agility Tests in Athletes With Chronic Ankle Sprain

Journal of Sport Rehabilitation ◽

10.1123/jsr.2018-0398 ◽

2020 ◽

Vol 29 (5) ◽

pp. 527-532 ◽

Cited By ~ 3

Author(s):

Javad Sarvestan ◽

Zdeněk Svoboda

Keyword(s):

Range Of Motion ◽

Ankle Joint ◽

Ankle Sprain ◽

Preventive Measure ◽

Random Order ◽

Acute Effect ◽

Physically Active ◽

Kinesio Taping ◽

Ankle Stability ◽

Significant Difference

Background:Taping is a preventive measure commonly used for protecting and strengthening the ankle joint to prevent further musculoskeletal damage. Ankle taping prevents excessive range of motion (ROM) of the ankle joint and allows the improvement of proprioception to adjust balance. Appropriate ankle stability is essential for various activities, such as sprinting, turning, cutting, and jumping, which are associated with agility.Aim:To assess the acute effect of Kinesio taping and athletic taping on the ankle ROM of athletes with chronic ankle sprain during various agility tests that include sprinting, turning, and cutting actions.Methods:Twenty-five physically active volunteers with chronic ankle sprain performed the Illinois, 5–0–5, 10-m shuttle, hexagon, compass drill, and T agility tests in 3 ankle conditions (nontaped, Kinesio taped, and athletic taped), in random order. Ankle ROM was recorded using the Vicon motion capture system.Results:In comparison with the nontaped ankle condition, in the ankle Kinesio-taping condition, the results showed a significant increase of ankle ROM in the sprinting part of the Illinois, 5–0–5, 10-m shuttle, and T agility tests (P ≤ .01), whereas in the ankle athletic-taping condition, no significant difference was found in ankle ROM during all agility tests.Conclusion:In sports that need linear sprinting, Kinesio taping seems to be a suitable intervention for the improvement of sports performance as it provides increased ankle ROM.

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The Effect of Fibular Reposition Taping on Postural Control in Individuals With Chronic Ankle Instability: A Critically Appraised Topic

Journal of Sport Rehabilitation ◽

10.1123/jsr.2017-0166 ◽

2019 ◽

Vol 28 (2) ◽

pp. 205-210

Author(s):

Bradley C. Jackson ◽

Robert T. Medina ◽

Stephanie H. Clines ◽

Julie M. Cavallario ◽

Matthew C. Hoch

Keyword(s):

Postural Control ◽

Range Of Motion ◽

Ankle Instability ◽

Chronic Ankle Instability ◽

Ankle Sprains ◽

Clinical Scenario ◽

Clinical Question ◽

Bottom Line ◽

Significant Difference ◽

History Of

Clinical Scenario: History of acute ankle sprains can result in chronic ankle instability (CAI). Arthrokinematic changes resulting from CAI may restrict range of motion and contribute to postural control deficits. Mulligan or fibular reposition taping (FRT) has been suggested as a means to realign fibular positional faults and may be an effective way to improve postural control and balance in patients with CAI. Clinical Question: Is there evidence to suggest that FRT will improve postural control for patients with CAI in the affected limb compared with no taping? Summary of Key Findings: Three of the 4 included studies found no significant difference in postural control in patients receiving FRT compared with sham or no tape. Clinical Bottom Line: There is moderate evidence refuting the use of FRT to improve postural control in patients with CAI. Strength of Recommendation: There is grade B evidence to support that FRT does not improve postural control in people with CAI.

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Reaction Time and Postural Control in Individuals With Cystic Fibrosis and Bronchiectasis

Case Medical Research ◽

10.31525/ct1-nct03902236 ◽

2019 ◽

Author(s):

Keyword(s):

Cystic Fibrosis ◽

Reaction Time ◽

Postural Control

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INFLUENCE OF FOOT INSOLE ON THE GAIT PERFORMANCE IN SUBJECTS WITH FLAT FOOT DISORDER

Journal of Mechanics in Medicine and Biology ◽

10.1142/s0219519419500507 ◽

2019 ◽

Vol 19 (06) ◽

pp. 1950050

Author(s):

M. T. KARIMI ◽

R. B. TAHMASEBI ◽

B. SATVATI ◽

F. FATOYE

Keyword(s):

Range Of Motion ◽

Ankle Joint ◽

Lower Limb ◽

Walking Speed ◽

Force Plate ◽

Flat Foot ◽

Gait Performance ◽

Positive Effects ◽

Significant Difference ◽

Foot Disorder

Flat foot is the most common foot disorder that influences the alignment of the lower limb structure. It is controversial whether the use of foot insole influences kinetic and kinematic of the leg or not. Therefore, this study investigated the influence of foot insole on the gait performance in subjects with flat foot disorder. A group of flat foot subject was recruited into this study (the number of subjects was 15). The motion of the leg joints was determined using the Qualysis motion analysis system. Moreover, the force applied on the lower limb was recorded by a Kistler force plate. The range of motion of the lower limb joints, the moments applied on the lower limb joints and force transmitted through the leg were the parameters used in this study. The difference between these parameters during walking with and without insole was evaluated using the paired [Formula: see text]-test. Significant value was set at [Formula: see text]. There was no significant difference between the range of motion of ankle joint while walking with and without insole. However, the medial directed force applied on the leg decreased significantly [Formula: see text]. The use of foot insole did not influence the moments transmitted through the hip and knee joints. The walking speed of the subjects improved while walking with foot insole. Use of foot insole influenced the magnitude of the force applied on the leg and the adductor moment of ankle joint due to its influence on foot alignment. As the walking speed of the improved subjects follows the use of insole, it can be concluded that it may have a positive effects on the performance of flat foot subjects.

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A TTP-incorporated scoring model for predicting mortality of solid tumor patients with bloodstream infection caused by Escherichia coli

Supportive Care in Cancer ◽

10.1007/s00520-021-06442-z ◽

2021 ◽

Author(s):

Qing Zhang ◽

Hao-Yang Gao ◽

Ding Li ◽

Chang-Sen Bai ◽

Zheng Li ◽

...

Keyword(s):

Escherichia Coli ◽

High Risk ◽

Bloodstream Infection ◽

Solid Tumor ◽

Prognostic Scores ◽

Risk Scores ◽

Youden Index ◽

Tumor Patients ◽

Scoring Model ◽

Significant Difference

Abstract Background Few mortality-scoring models are available for solid tumor patients who are predisposed to develop Escherichia coli–caused bloodstream infection (ECBSI). We aimed to develop a mortality-scoring model by using information from blood culture time to positivity (TTP) and other clinical variables. Methods A cohort of solid tumor patients who were admitted to hospital with ECBSI and received empirical antimicrobial therapy was enrolled. Survivors and non-survivors were compared to identify the risk factors of in-hospital mortality. Univariable and multivariable regression analyses were adopted to identify the mortality-associated predictors. Risk scores were assigned by weighting the regression coefficients with corresponding natural logarithm of the odds ratio for each predictor. Results Solid tumor patients with ECBSI were distributed in the development and validation groups, respectively. Six mortality-associated predictors were identified and included in the scoring model: acute respiratory distress (ARDS), TTP ≤ 8 h, inappropriate antibiotic therapy, blood transfusion, fever ≥ 39 °C, and metastasis. Prognostic scores were categorized into three groups that predicted mortality: low risk (< 10% mortality, 0–1 points), medium risk (10–20% mortality, 2 points), and high risk (> 20% mortality, ≥ 3 points). The TTP-incorporated scoring model showed excellent discrimination and calibration for both groups, with AUC being 0.833 vs 0.844, respectively, and no significant difference in the Hosmer–Lemeshow test (6.709, P = 0.48) and the chi-square test (6.993, P = 0.46). Youden index showed the best cutoff value of ≥ 3 with 76.11% sensitivity and 79.29% specificity. TTP-incorporated scoring model had higher AUC than no TTP-incorporated model (0.837 vs 0.817, P < 0.01). Conclusions Our TTP-incorporated scoring model was associated with improving capability in predicting ECBSI-related mortality. It can be a practical tool for clinicians to identify and manage bacteremic solid tumor patients with high risk of mortality.

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The effect of obstructive sleep apnoea on timing of acute coronary syndrome

European Heart Journal ◽

10.1093/ehjci/ehaa946.1363 ◽

2020 ◽

Vol 41 (Supplement_2) ◽

Author(s):

M.H Muhmad Hamidi ◽

H Sani ◽

M.A Ibrahim ◽

K.S Ibrahim ◽

A.B Md Radzi ◽

...

Keyword(s):

Acute Coronary Syndrome ◽

High Risk ◽

Systolic Function ◽

Strong Association ◽

Multiple Logistic Regression Analysis ◽

Sleep Apnoea ◽

Neck Circumference ◽

Coronary Syndrome ◽

Obstructive Sleep ◽

Significant Difference

Abstract Background and objective Acute coronary syndrome (ACS) remains the principal cause of death in Malaysia. It is estimated about 20% of ACS occurs at nighttime during sleep between 12am to 6am. Factors associated with nocturnal ACS are unknown. Acute nocturnal pathophysiological response to obstructive sleep apnea (OSA) may increase risk of nocturnal ACS. We hypothesized that OSA risk is associated with timing of ACS onset. Methodology This study included 200 patients with ACS who underwent coronary angiogram for which the time of chest pain onset was clearly identified and divided into 2 groups; nocturnal ACS (12am-5.59am) and non-nocturnal ACS (6am–11.59pm). Two validated questionnaires, STOP-BANG and Epworth Sleepiness Scale (ESS) were self-administered by subjects to determine OSA risk. All subjects timing of ACS onset, OSA risk, demography, anthropometric measurements, comorbidities and echocardiographic characteristics were analyzed. Results Acute coronary syndrome occurs nocturnally in 19% of ACS patients. The prevalence of high risk OSA individuals among ACS patients is 43%. There is significantly higher prevalence of high risk OSA individuals in nocturnal ACS group of 95% compared to 30% of high risk OSA individuals in non-nocturnal ACS group (p=0.001). Nocturnal ACS patients was significantly younger (50.1±8.7yrs, p=0.001), had higher BMI (33.9±4.3kg/m2, p=0.005), waist circumference (106.7±10.3cm, p=0.003) and larger neck circumference (44.6±3.3cm, p=0.001) compared to non-nocturnal ACS group. These groups had similar prevalence of other comorbidities for ACS and showed no significant difference between left and right ventricular systolic function. In multiple logistic regression analysis, the most significant predictors for nocturnal ACS are OSA risk, neck circumference and age. Conclusion There is a strong association between high risk OSA individuals and nocturnal ACS onset. Patient with nocturnal ACS onset should be screened for OSA and prioritized for polysomnography. OSA prevalence according to ACS onset Funding Acknowledgement Type of funding source: None

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“Going Backward”: Effects of age and fatigue on posterior-directed falls in Parkinson disease

Neurorehabilitation ◽

10.3233/nre-210040 ◽

2021 ◽

pp. 1-9

Author(s):

Evan V. Papa ◽

Rita M. Patterson ◽

Nicoleta Bugnariu

Keyword(s):

Postural Control ◽

Parkinson Disease ◽

Repeated Measures ◽

Center Of Pressure ◽

Angular Displacement ◽

Reaction Times ◽

Older Individuals ◽

Peak Knee ◽

Significant Difference ◽

Fatiguing Exercise

BACKGROUND: Nearly half of persons with Parkinson disease (PD) report fatigue as a factor in their fall history. However, it is unknown whether these self-reported falls are caused by a sensation of fatigue or performance fatigue. OBJECTIVE: We sought to investigate the influences of performance fatigue and age on postural control in persons with PD. METHODS: Individuals with PD (n = 14) underwent postural control assessments before (T0) and immediately after (T1) fatiguing exercise. Biomechanical data were gathered on participants completing a treadmill-induced, posterior-directed fall. Performance fatigue was produced using lower extremity resistance exercise on an isokinetic ergometer. Repeated measures ANCOVAs were used with age as a covariate to determine the effects of performance fatigue on biomechanical variables. RESULTS: After adjustment for age, there was a statistically significant difference in peak center of pressure (COP) latency during the support phase of recovery. Pairwise comparisons demonstrated a decrease in peak ankle displacement from T0 to T1. Age was also found to be significantly related to reaction time and peak knee displacement while participants were fatigued. CONCLUSIONS: The decreased peak COP latency, along with decreased ankle angular displacement, suggest that persons with PD adopt a stiffening strategy in response to backward directed falls. Postural stiffening is not uncommon in persons with PD and could be a risk factor for falls. Older individuals with PD demonstrate slower mobility scores and decreased reaction times in the setting of fatigue, suggesting a combined effect of the aging and fatigue processes.

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