Read by QxMD icon Read


Dan Denis, Richard Rowe, A Mark Williams, Elizabeth Milne
The human mirror neuron system is believed to play an important role in facilitating the ability of athletes to anticipate the actions of an opponent. This system is often assessed with EEG by measuring event-related changes in mu (8-13Hz) sensorimotor oscillations. However, traditional channel-based analyses of this measure are flawed in that due to volume conduction effects mu and non-mu alpha activity can become mixed. This flaw means it is unclear the extent to which mu activity indexes the mirror system, as opposed to other processes such as attentional demand...
October 13, 2016: NeuroImage
Emmanuel Ducrocq, Mark Wilson, Sam Vine, Nazanin Derakshan
Attentional control is a necessary function for the regulation of goal-directed behavior. In three experiments we investigated whether training inhibitory control using a visual search task could improve task specific measures of attentional control and performance. In experiment 1 results revealed that training elicited a near-transfer effect; improving performance on a cognitive (antisaccade) task assessing inhibitory control. In Experiment 2 an initial far-transfer effect of training was observed on an index of attentional control validated for tennis...
October 13, 2016: Journal of Sport & Exercise Psychology
Stephanie A Kovalchik, Michael K Bane, Machar Reid
Official rankings are the most common measure of success in professional women's tennis. Despite their importance for earning potential and tournament seeding, little is known about ranking trajectories of female players and their influence on career success. Our objective was to conduct a comprehensive study of the career progression of elite female tennis talent. The study examined the ranking trajectories of the top 250 female professionals between 1990 and 2015. Using regression modelling of yearly peak rankings, we found a strong association between the shape of the ranking trajectory and the highest career ranking earned...
October 13, 2016: Journal of Sports Sciences
Brad Fenter, Thomas S Marzilli, Yong T Wang, Xuanliang N Dong
The purpose of this study was to determine the effect of a three-set tennis match on knee kinematics and leg muscle activation during the tennis serve in a real-time environment. Motion capture data and wireless electromyography of hamstrings and quadriceps muscles were collected from the back leg during the serve. A reduction of maximum knee flexion angle and a decrease of electromyography amplitudes in leg muscles were observed during the match. However, the knee angular velocity and the electromyography frequency of leg muscles remain unchanged throughout the match...
October 12, 2016: Perceptual and Motor Skills
Jianjiang Cui, Zixuan Liu, Long Xu
As referee's decisions are made artificially in traditional table tennis matches, many factors in a match, such as fatigue and subjective tendency, may lead to unjust decision. Based on finite state machine (FSM), this paper presents a model for table tennis referee regulation to substitute manual decisions. In this model, the trajectory of the ball is recorded through a binocular visual system while the complete rules extracted from the International Table Tennis Federation (ITTF) rules are described based on FSM...
October 13, 2016: Journal of Sports Sciences
Terry Trinh, Christine T Shiner, Angelica G Thompson-Butel, Penelope A McNulty
PURPOSE: Post-stroke hemiparesis may manifest as asymmetric gait, poor balance, and inefficient movement patterns. We investigated improvements in lower-limb muscle activation and function during Wii-based Movement Therapy (WMT), a rehabilitation program specifically targeting upper-limb motor-function. METHODS: Electromyography (EMG) was recorded bilaterally from tibialis anterior (TA) in 20 stroke patients during a 14-day WMT program. EMG amplitude and burst duration were analyzed during stereotypical movement sequences of WMT activities...
October 9, 2016: Disability and Rehabilitation
Tamara Kramer, Barbara Ch Huijgen, Marije T Elferink-Gemser, Chris Visscher
PURPOSE: To analyze how physical fitness (PF) improves in elite junior tennis players related to age, maturity, and performance level. METHODS: Elite junior tennis players (n=113 boys, n=83 girls) divided by performance level were monitored longitudinally from U14 to U16. Maturity, upper and lower body power, speed, and agility were measured during subsequent competitive seasons. Improvement was analyzed per sex using multilevel analysis. RESULTS: PF components for boys and girls improved over age (U14-U16) (ES ...
October 5, 2016: Pediatric Exercise Science
Hadrien Ceyte, Alexis Lion, Sébastien Caudron, Philippe Perrin, Gérome C Gauchard
The aim of this study was to assess the visuo-oculomotor skills of gaze orientation in selected sport activities relative to visual demands of the sporting environment. Both temporal and spatial demands of the sporting environment were investigated: The latency and accuracy of horizontal saccades and the gain of the horizontal smooth pursuit of the sporting environment were investigated in 16 fencers, 19 tennis players, 12 gymnasts, 9 swimmers and 18 sedentary participants. For the saccade test, two sequences were tested: In the fixed sequence, participants knew in advance the time interval between each target, as well as the direction and the amplitude of its reappearance; in the Freyss sequence however, the spatial changes of the target (direction and amplitude) were known in advance by participants but the time interval between each target was unknown...
October 4, 2016: Experimental Brain Research. Experimentelle Hirnforschung. Expérimentation Cérébrale
Alberto Acerbi, Claudio Tennie, Alex Mesoudi
The extensive use of social learning is considered a major reason for the ecological success of humans. Theoretical considerations, models and experiments have explored the evolutionary basis of social learning, showing the conditions under which learning from others is more adaptive than individual learning. Here we present an extension of a previous experimental set-up, in which individuals go on simulated 'hunts' and their success depends on the features of a 'virtual arrowhead' they design. Individuals can modify their arrowhead either by individual trial and error or by copying others...
September 2016: Royal Society Open Science
Max Stuelcken, Daniel Mellifont, Adam Gorman, Mark Sayers
The wrist/hand complex forms the crucial final link in the kinetic chain between the body and the racquet and therefore has a number of important roles in the production of all tennis strokes. However, the internal and external loads that are created at the wrist during these strokes have the potential to contribute to pain and injury. Therefore, the purposes of this narrative review are to (1) determine the extent of the problem of wrist pain/injury in tennis players, (2) identify bony and soft tissue structures of the wrist that are susceptible to damage as a result of tennis play and (3) explore factors that may influence the development of wrist pain/injury in tennis players...
October 3, 2016: Sports Medicine
Chelsea Starbuck, Victoria Stiles, Daniel Urà, Matt Carré, Sharon Dixon
OBJECTIVES: To examine the influence of clay court frictional properties on tennis players' biomechanical response. DESIGN: Repeated measures. METHODS: Lower limb kinematic and force data were collected on sixteen university tennis players during 10×180° turns (running approach speed 3.9±0.20ms(-1)) on a synthetic clay surface of varying friction levels. To adjust friction levels the volume of sand infill above the force plate was altered (kg per m(2) surface area; 12, 16 and 20kgm(-2))...
September 1, 2016: Journal of Science and Medicine in Sport
Robin Chatterjee, Jay Vyas
Wrist pain due to repetitive motion or overuse is a common presentation in primary care. This case reports the rare condition of intersection syndrome as the cause of the wrist pain in an amateur tennis player. This is a non-infectious, inflammatory process that occurs where tendons in the first extensor compartment intersect the tendons in the second extensor compartment. Suitable history and examination provided the diagnosis, which was confirmed by MRI. Management consisted of early involvement of the multidisciplinary team, patient education, workplace and sporting adaptations, rest, analgesia, reduction of load, protection and immobilisation of the affected joint followed by a period of rehabilitation...
2016: BMJ Case Reports
François Segretin, Guillaume Paris, Sarah Cheriet, Yohann Delarue
OBJECTIVE: The chronic lateral epicondylitis is a common pathology with an economic impact. Actually, many costly therapies are prescribed without evidence of their effectiveness. Physical therapies seem to be neglected. However, they can correct actions at risk and involve the patient in his rehabilitation. MATERIAL/PATIENTS AND METHODS: This study evaluated the effectiveness of a standardized 2 month rehabilitation program composed of: an outpatient group education session, 18 liberal physical therapy sessions with correction of the posture of the trunk and shoulder, eccentric strengthening of the supinator muscles and the wrist extensor muscles, stretching, and some self daily exercises (transverse friction massage and stretching) according to Pernot-Comtet protocol...
September 2016: Annals of Physical and Rehabilitation Medicine
Luke Widstrom, Andrew Slattengren
Both approaches reduce pain, but the improvement with platelet-rich plasma (PRP) is not clinically meaningful. Autologous blood injections (ABIs) are more effective than corticosteroid injections for reducing pain and disability in patients with tennis elbow in both the short and long term.
September 2016: Journal of Family Practice
Yao-Hong Guo, Ta-Shen Kuan, Kuan-Lin Chen, Wei-Chih Lien, Pei-Chun Hsieh, I-Chieh Hsieh, Szu-Hao Chiu, Yu-Ching Lin
OBJECTIVES: To compare the effects of two different injection sites of low doses of botulinum toxin type A with steroid in treating lateral epicondylalgia. DESIGN: Double-blind, randomized, active drug-controlled trial. SETTING: Tertiary medical center. PARTICIPANTS: Twenty-six patients with lateral epicondylalgia for more than six months were recruited from hospital-based outpatient population. A total of 66 patients were approached, and 40 were excluded...
September 22, 2016: Archives of Physical Medicine and Rehabilitation
Dominika Szalewska, Magdalena Skrzypkowska
INTRODUCTION AND OBJECTIVES: Although physical activity has been found to reduce the risk of cardiovascular diseases and depression in the general population, little is known about physical patterns and the link with postnatal depressive symptoms and awareness of cardiovascular risk factors in postpartum women. The aim of this study was to examine physical activity patterns and their link to depressive symptoms in postpartum women. The secondary endpoint was the assessment of health awareness in women six months after delivery...
September 2016: Annals of Agricultural and Environmental Medicine: AAEM
K Witek, P Żurek, P Zmijewski, J Jaworska, P Lipińska, A Dzedzej-Gmiat, J Antosiewicz, E Ziemann
The study investigated changes in myokines, heat shock proteins, and growth factors in highly ranked, young, male tennis players in response to physical workload during the competitive season and their potential correlations with match scores. Blood collections were carried out at the beginning, the midpoint, and the end of the tournament season. Data analysis revealed a significant increase in interleukin 6 and its inverse correlation with the number of lost games (r = -0.45; 90% CI -0.06 to 0.77). Neither the irisin nor BDNF level changed notably, yet delta changes of irisin across the season significantly correlated with the number of games won...
2016: BioMed Research International
Koya Mine, Takashi Nakayama, Steve Milanese, Karen Grimmer
Posterior shoulder tightness (PST) and glenohumeral internal rotation deficit (GIRD) are common physical impairments in overhead sports, such as baseball, cricket and tennis.(1-4)) PST is clinically measured by passive shoulder horizontal adduction with scapula stabilized in supine or side lying.(5),(6)) GIRD is generally characterised as concurrent deficits of internal rotation (IR) and total arc of motion in dominant side.(7),(8)) Although the mechanisms of PST and GIRD are not clear, it is speculated that they derive from tight posterior glenohumeral capsule and posterior muscles, such as posterior deltoid, infraspinatus and teres minor muscles...
August 24, 2016: Journal of Sport Rehabilitation
Karl B Fields, Michael D Rigby
Calf pain is a common complaint among runners of all ages but is most frequent in masters athletes. This article focuses on injuries to the triceps surae or true 'calf muscles.' The most common calf injury is a tear of the medial gastrocnemius muscle (Tennis Leg) but other structures including the lateral gastrocnemius, plantaris and soleus also may be the cause of muscular pain. This article looks at the presentation, evaluation, and treatment of these injuries. We also highlight some examples of musculoskeletal ultrasound which is a valuable tool for rapid diagnosis of the cause and extent of injury...
September 2016: Current Sports Medicine Reports
A E Sahin, Y Cayir, A Imerci, H Uzkeser, F Akcay
Heel spur is also known as a result of plantar calcaneal bone spur which is a common complaint associated with pain at heel. Heel spur is more common in females. Anti-inflammatory drugs, local steroid injections, physical therapy, low-dose radiotherapy and shock wave therapy are the commonly used treatment choices. There is no evidence that acupuncture is an effective method for heel spur in the literature. However, we know that acupuncture can be used for many orthopaedic diseases like frozen shoulder, tennis elbow, sciatic pain, joint sprains, several forms of bursitis and arthritis...
November 11, 2015: West Indian Medical Journal
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"