Outcome of a neuromuscular training program on recurrent ankle sprains. Does the initial type of healthcare matter?The first of our featured articles this month, by Mailuhu and co-workers, describes the outcome of a secondary analysis of three randomised trials examining the impact of initial healthcare on the outcome of neuromuscular training on recurrent ankle sprains. In the second feature article, Garcia-Hermoso’s group report the results of a test of a before-school physical activity intervention (Active-Start intervention) on blood pressure in children and examines whether sedentary time moderates the effect of the intervention on blood pressure.
Classifying motor coordination impairment in para swimmers with brain injuryIn our first article of the month Hogarth and colleagues add evidence to the development of sport specific classification systems in Paralympic Swimming with a report of an assessment of a task to classify motor coordination impairment. King’s group outline a review of five years of data on female rugby injuries from the New Zealand Accident Compensation Corporation. In the third feature article, Chesher’s team indicate the need to capture data on decelerations in elite field hockey players as a potential significant contributor to load.
Bone mineral density in pre-professional ballet dancersIn the first of this month’s feature articles, Wewege and Ward report the results of a systematic review of bone mineral density in pre-professional female ballet dancers concerningly suggesting reduced upper limb bone densities compared to controls. In the second article Zhu and colleagues suggest that sit/stand work stations can reduce overall sitting times in a real-world environment. In the third feature article, Cobley’s group outline the impact of relative age on performance advantage in national level Australian swimmers.
Heat stress incidents, and match play at the Australian OpenIn this month’s first feature article, Smith and colleagues outline the relationship between wet bulb globe temperature and heat injury incidents at the Australian Open. In the second article, Delevatti’s group compare the effects of dry land aerobic and aquatic training on individuals with type 2 diabetes. In the final feature article this month, Christie and co-workers undertook a repeated measures study examining the differences in pacing strategies in sprinting between wickets in skilled and less skilled players.
Exercise intensity and inflammation in type 2 diabetesMallard and colleagues lead off the first of this month’s feature articles with a research report suggesting that there is no significant acute impact of either high intensity interval training or moderate intensity continuous training on inflammatory markers in individuals with type two diabetes. In the second feature article, Song’s group provide support for the existence of postural control impairments in individuals with chronic ankle instability when cutaneous sensation is reduced compared to healthy controls.
The King-Devick Test and concussion diagnosisMolloy, Murphy and Gissane report a descriptive cohort study in the first of this month’s feature articles, suggesting that the King-Devick Test may not be effective as a stand-alone concussion test but may add value to side line cognitive and balance tests. In the second feature article, Drew and colleagues describe the major time loss factors due to illness in a cohort of Rio Olympic athletes and in the final feature article, Fransen’s group outline the need for high quality leadership development programs in optimising team effectiveness.
Statins for primary prevention in active individuals; risks versus benefits?Mansi and colleagues lead off the featured articles this month with an examination of the risks versus benefits of statin use in physically active individuals. In the second featured article, Tsehaie’s group report no significant enhancement to diagnosis provided by MRI in chronic Achilles tendinopathy. In the third feature article, Lee, Spence and Carson suggest that both physical activity and specific types of sedentary activity are important for children’s brain development.
Quantifying jump loadsThis month’s sports injury section leads off with a report by Charlton and colleagues outlining a method for quantifying jump loads in volleyball edging closer to the holy grail of effective load management as an underlying tool in injury prevention. Fuller, Kemp and Raftery describe a study on the use of real time video for enhancing the elite rugby doctor’s field side decisions on concussion management. Extending the load management theme in injury prevention, Malone’s group examine the protective effect of high chronic training loads in Gaelic football.
Rating perceived exertion using facial expressionsTo kick off the first issue of the Journal of Science and Medicine in Sport for 2017 we have a focus on sport science and physical activity to get you moving from the seasonal break. We are also undertaking a number of improvements to the Journal from 2017 the aims of which are two-fold. The first being to increase the accessibility of the journal by progressing to a predominately online format, which will allow authors to see their work published more quickly, and is already the predominate form in which the journal is accessed.
Using video in concussion surveillanceIn this month's sport and exercise medicine section Makdissi and Davis examine the effectiveness of using video analysis for concussion surveillance in Australian football. They suggest that video analysis has a part to play in the side-line assessment of concussion in support of an appropriate clinical assessment. However, they acknowledge that the need for multiple camera angles with good quality video limits this approach to high level games. Thorning and colleagues in an exploratory study of the effect of knee bracing in menisectomised patients suggest that worthwhile changes in knee joint moments warrant further research on these devices.
Best practice in assessing clients for clinical exercise servicesBahl, Dollman and Davidson in this month's sport and exercise medicine section report on the results of a Delphi study examining the evidence defining the critical domains in subjective assessment that guide the clinical exercise physiologist's decision making. They suggest that twenty three domains need to be addressed in a clinical assessment to ensure the delivery of safe exercise prescription. Mendis and Hides outline the results of a randomised intervention comparing motor control exercises for the hip musculature versus wait list control on muscle dimensions on MRI.
Sport performance success or failure depends on degree of modified training timeIn the lead article in this month's sport and exercise medicine section Raysmith and Drew report on the impact of injury and illness on training availability of track and field athletes. They indicate that training availability is a critical determinant of performance goal success or failure at the international level. In the second article in this section Drew and co-workers report that the prevalence of groin pain in Australian Football players warrants assessment of mechanical pain sensitivity in this group.
Efficacy of group based sport and exercise programs for indigenous adults?Pressick and co-workers systematic review, on research into the effectiveness of group-based sport and exercise programs designed for indigenous adults in Australia, supports the design of programs that incorporate both nutrition and sport or exercise components as being effective in producing positive intermediate term health outcomes. In other articles in this month's physical activity section, Brusseau, Burns and Fu suggest that US adolescent physical activity levels during middle school years are seasonally highest in outdoor activity in autumn, having implications for seasonal programming of interventions.
Efficacy of blood flow restricted exercise?In a systematic review and meta-analysis, in the sports and exercise science section this month, Slysz, Stultz and Burr suggest that blood flow restriction when combined with exercise is an effective mechanism for enhancing both muscle strength and size over relatively short duration of intervention. Almeida and colleagues randomised controlled trial on the impact of cold water immersion on heart rate variability during recovery suggests that this technique is beneficial if used for 15 min at 14 °C.
Is natural turf a risk factor in football?Rennie and co-workers in a review article in this month's sports injury section examine the age old sports injury question as to whether pitch hardness is an extrinsic risk factor for injury in English Association Football. Given the possibility of greater difficulty associated with maintaining quality pitches with increased periods of low natural rainfall in many areas this is an important question that will need further research to provide definitive answers. In the other articles in the sports injury section Davidson and McLean take an in depth look at the geometry of the ACL and how it changes with maturation using MRI scanning.
Exercise and weight gain in pregnancyWelcome to the April 2016 issue of the journal. This month's feature article by McDonald and co-workers examines the relationship between the amount of exercise undertaken and the impact of that exercise on gestational weight gain in a comprehensive systematic review. Their conclusions suggest that there are significant issues with compliance and adherence that need addressing in this area prior to being able to make clear recommendations regarding activity levels during this important period.
Child and adolescent sports participant issuesIn this month's journal there is a theme of issues of the child and adolescent sports participant. In the sports and exercise medicine section, Haran and co-workers make a strong case for enhancing the on field assessment of children and adolescents with sports relates concussions finding that a significant proportion of their study sample were not managed according to current best practice guidelines. In the sports injury section, Orr and Cheng outline the need for rigourous but low burden injury surveillance mechanisms in elite Australian junior rugby league players.