Damien J McKay - Academia.edu (original) (raw)
Papers by Damien J McKay
Pediatric Exercise Science, 2016
With the advent of long-term athlete development programs and early sport specialization, the tra... more With the advent of long-term athlete development programs and early sport specialization, the training of elite athletes now spans the period of adolescence. Adolescence represents a period of physical, psychosocial and cognitive development, but also a time of physical and psychological vulnerability. Changes in skeletal and physiological attributes coincide with an increased risk of sport related injury. A window of vulnerability is shaped by the properties of the musculoskeletal system, the influence of pubertal hormones and the lag time between physical and cognitive development. This article aims to challenge the assumption of adolescence as a time of increased vigor alone, by highlighting the presence of specific vulnerabilities, and proposing that the hormonal, musculoskeletal, and neurocognitive changes of adolescence may represent intrinsic risk factors for sport related injury.
A Guide for Health Professionals Who Work with Adolescents and Young Adults, 2013
Physiotherapy research international : the journal for researchers and clinicians in physical therapy, Jan 16, 2016
Musculoskeletal disorders, such as knee pain, are common in children and adolescents, but there i... more Musculoskeletal disorders, such as knee pain, are common in children and adolescents, but there is a lack of high quality research that evaluates the clinical course of these conditions. The objective of this study was to evaluate the feasibility of conducting a prospective study of children and adolescents with knee pain using electronic methods of data collection. Children and adolescents with knee pain that presented to primary care physiotherapy clinics were enrolled and followed-up on a weekly basis via short messaging service (SMS) until their knee pain had recovered (i.e. two consecutive weeks of no pain). Feasibility was assessed in terms of recruitment, retention and response rates to SMS and an online questionnaire. Baseline and 6-month follow-up measures included pain, disability, physical function, physical activity and health related quality of life. Kaplan-Meier survival analysis was used to estimate the median time to knee pain recovery. Thirty participants (mean age ...
Bmj British Medical Journal, 2009
Pediatric rheumatology online journal, Jan 11, 2016
Sports participation can be an integral part of adolescent development with numerous positive sho... more Sports participation can be an integral part of adolescent development with numerous positive short and long-term effects. Despite these potential benefits very high levels of physical activity, during skeletal maturation, have been proposed as a possible cause of cam-type femoroacetabular impingement (FAI). The influence of physical activity on the developing physis has been previously described both in animal studies and epidemiological studies of adolescent athletes. It is therefore important to determine whether the development of FAI is secondary to excessive physical activity or a combination of a vulnerable physis and a set level of physical activity. A review of the current literature suggests that adolescent males participating in ice-hockey, basketball and soccer, training at least three times a week, are at greater risk than their non-athletic counterparts of developing the femoral head-neck deformity associated with femoroacetabular impingement.
British Medical Journal, 2009
Pediatric exercise science, 2013
This study assessed the magnitude of changes in isokinetic muscle strength in children with juven... more This study assessed the magnitude of changes in isokinetic muscle strength in children with juvenile idiopathic arthritis (JIA) before and after treatment with intra-articular corticosteroid injection and assessed the feasibility of a larger study of the same effect. Isokinetic dynamometry was used to measure peak knee extension and flexion torque in 12 children before and after treatment for unilateral knee arthritis. Extensor and flexor strength was reduced on the affected side before treatment (-0.56 Nm/kg, p = .004 and -0.24 Nm/kg, p = .02 respectively). Increases in extensor strength were observed at two weeks (p = .01) and twelve weeks postinjection (p = .03). Improvements at 6 weeks approached but did not reach statistical significance (p = .17). Improvements in flexor strength were not observed until 12 weeks postinjection (p = .03). Despite significant improvements in extensor strength, low peak knee extensor torque continued to be observed at 12 weeks (p = .01). Knee exten...
Journal of Science and Medicine in Sport, 2010
Journal of Science and Medicine in Sport, 2012
Journal of Paediatrics and Child Health, 2010
A 10-year-old boy presented with joint pain and arthritis with joint effusions and decreased rang... more A 10-year-old boy presented with joint pain and arthritis with joint effusions and decreased range of motion in the right wrist, both elbows, and right ankle. Initial investigations showed a normal full blood count (FBC) and film (haemoglobin 124 g/L, white cell count (WCC) 8.1 ¥ 10 9 /L, platelets 378 ¥ 10 9 /L) with raised inflammatory markers (ESR 78 mm/h, CRP 40 mg/L). Neither antinuclear antibodies nor human leukocyte antigen B-27 were present. X-rays demonstrated a right ankle effusion but were otherwise normal.
Journal of Paediatrics and Child Health, 2014
Developmental Medicine & Child Neurology, 2011
Antiphospholipid antibodies APS Antiphospholipid syndrome IgG
BMC Musculoskeletal Disorders, 2014
Background: Primary care settings play a vital role in the early detection and appropriate manage... more Background: Primary care settings play a vital role in the early detection and appropriate management of musculoskeletal conditions in paediatric populations. However, little data exist regarding these conditions in a primary care context or on the presentation of specific musculoskeletal disorders in children. The aim of this study was to estimate the caseload and describe typical management of musculoskeletal conditions in children and adolescents presenting to primary care in Australia.
Journal of Science and Medicine in Sport, 2012
To describe fundamental movement skills (FMS), physical fitness and level of physical activity am... more To describe fundamental movement skills (FMS), physical fitness and level of physical activity among Australian children with juvenile idiopathic arthritis (JIA) and compare this with healthy peers. Methods: Children aged 6-16 years with JIA were recruited from hospital rheumatology clinics and private rheumatology rooms in Sydney, Australia. All children attended an assessment day, where FMS were assessed by a senior paediatric physiotherapist, physical fitness was assessed using the multistage 20-metre shuttle run test, and physical activity and physical and psychosocial well-being were assessed with questionnaires. These results were compared with age-and gender-matched peers from the NSW Schools Physical Activity and Nutrition Survey and the Health of Young Victorians Study using logistic regression analysis. Results: Twenty-eight children with JIA participated in this study. There were no differences in the proportion of children who had mastered FMS between children with JIA and their healthy peers (P > 0.05). However, there was a trend for children with JIA to have poorer physical fitness and be less physically active than healthy peers. Parents of children with JIA indicated more physical and psychosocial impairments among their children and themselves compared with parents of healthy children (P < 0.05). Conclusions: This is the first study in Australia to compare FMS, physical activity and fitness in children with JIA and their peers. While older children with JIA appear to have poorer physical fitness and physical activity levels than their peers, there is no difference in FMS.
British Journal of Sports Medicine, 2012
This section features a recent systematic review that is indexed on PEDro, the Physiotherapy Evid... more This section features a recent systematic review that is indexed on PEDro, the Physiotherapy Evidence Database (www.pedro.org.au). PEDro is a free, web-based database of evidence relevant to physiotherapy.
British Journal of Sports Medicine, 2010
M ore than 100 million musculoskeletal (tendon/muscle/bone) injuries occur annually worldwide. Of... more M ore than 100 million musculoskeletal (tendon/muscle/bone) injuries occur annually worldwide. Of these, 30% to 50% are tendon and ligament injures [1], which cause significant loss of performance in sport and decreased functional capacity in the workplace and negatively affect the
Pediatric Exercise Science, 2016
With the advent of long-term athlete development programs and early sport specialization, the tra... more With the advent of long-term athlete development programs and early sport specialization, the training of elite athletes now spans the period of adolescence. Adolescence represents a period of physical, psychosocial and cognitive development, but also a time of physical and psychological vulnerability. Changes in skeletal and physiological attributes coincide with an increased risk of sport related injury. A window of vulnerability is shaped by the properties of the musculoskeletal system, the influence of pubertal hormones and the lag time between physical and cognitive development. This article aims to challenge the assumption of adolescence as a time of increased vigor alone, by highlighting the presence of specific vulnerabilities, and proposing that the hormonal, musculoskeletal, and neurocognitive changes of adolescence may represent intrinsic risk factors for sport related injury.
A Guide for Health Professionals Who Work with Adolescents and Young Adults, 2013
Physiotherapy research international : the journal for researchers and clinicians in physical therapy, Jan 16, 2016
Musculoskeletal disorders, such as knee pain, are common in children and adolescents, but there i... more Musculoskeletal disorders, such as knee pain, are common in children and adolescents, but there is a lack of high quality research that evaluates the clinical course of these conditions. The objective of this study was to evaluate the feasibility of conducting a prospective study of children and adolescents with knee pain using electronic methods of data collection. Children and adolescents with knee pain that presented to primary care physiotherapy clinics were enrolled and followed-up on a weekly basis via short messaging service (SMS) until their knee pain had recovered (i.e. two consecutive weeks of no pain). Feasibility was assessed in terms of recruitment, retention and response rates to SMS and an online questionnaire. Baseline and 6-month follow-up measures included pain, disability, physical function, physical activity and health related quality of life. Kaplan-Meier survival analysis was used to estimate the median time to knee pain recovery. Thirty participants (mean age ...
Bmj British Medical Journal, 2009
Pediatric rheumatology online journal, Jan 11, 2016
Sports participation can be an integral part of adolescent development with numerous positive sho... more Sports participation can be an integral part of adolescent development with numerous positive short and long-term effects. Despite these potential benefits very high levels of physical activity, during skeletal maturation, have been proposed as a possible cause of cam-type femoroacetabular impingement (FAI). The influence of physical activity on the developing physis has been previously described both in animal studies and epidemiological studies of adolescent athletes. It is therefore important to determine whether the development of FAI is secondary to excessive physical activity or a combination of a vulnerable physis and a set level of physical activity. A review of the current literature suggests that adolescent males participating in ice-hockey, basketball and soccer, training at least three times a week, are at greater risk than their non-athletic counterparts of developing the femoral head-neck deformity associated with femoroacetabular impingement.
British Medical Journal, 2009
Pediatric exercise science, 2013
This study assessed the magnitude of changes in isokinetic muscle strength in children with juven... more This study assessed the magnitude of changes in isokinetic muscle strength in children with juvenile idiopathic arthritis (JIA) before and after treatment with intra-articular corticosteroid injection and assessed the feasibility of a larger study of the same effect. Isokinetic dynamometry was used to measure peak knee extension and flexion torque in 12 children before and after treatment for unilateral knee arthritis. Extensor and flexor strength was reduced on the affected side before treatment (-0.56 Nm/kg, p = .004 and -0.24 Nm/kg, p = .02 respectively). Increases in extensor strength were observed at two weeks (p = .01) and twelve weeks postinjection (p = .03). Improvements at 6 weeks approached but did not reach statistical significance (p = .17). Improvements in flexor strength were not observed until 12 weeks postinjection (p = .03). Despite significant improvements in extensor strength, low peak knee extensor torque continued to be observed at 12 weeks (p = .01). Knee exten...
Journal of Science and Medicine in Sport, 2010
Journal of Science and Medicine in Sport, 2012
Journal of Paediatrics and Child Health, 2010
A 10-year-old boy presented with joint pain and arthritis with joint effusions and decreased rang... more A 10-year-old boy presented with joint pain and arthritis with joint effusions and decreased range of motion in the right wrist, both elbows, and right ankle. Initial investigations showed a normal full blood count (FBC) and film (haemoglobin 124 g/L, white cell count (WCC) 8.1 ¥ 10 9 /L, platelets 378 ¥ 10 9 /L) with raised inflammatory markers (ESR 78 mm/h, CRP 40 mg/L). Neither antinuclear antibodies nor human leukocyte antigen B-27 were present. X-rays demonstrated a right ankle effusion but were otherwise normal.
Journal of Paediatrics and Child Health, 2014
Developmental Medicine & Child Neurology, 2011
Antiphospholipid antibodies APS Antiphospholipid syndrome IgG
BMC Musculoskeletal Disorders, 2014
Background: Primary care settings play a vital role in the early detection and appropriate manage... more Background: Primary care settings play a vital role in the early detection and appropriate management of musculoskeletal conditions in paediatric populations. However, little data exist regarding these conditions in a primary care context or on the presentation of specific musculoskeletal disorders in children. The aim of this study was to estimate the caseload and describe typical management of musculoskeletal conditions in children and adolescents presenting to primary care in Australia.
Journal of Science and Medicine in Sport, 2012
To describe fundamental movement skills (FMS), physical fitness and level of physical activity am... more To describe fundamental movement skills (FMS), physical fitness and level of physical activity among Australian children with juvenile idiopathic arthritis (JIA) and compare this with healthy peers. Methods: Children aged 6-16 years with JIA were recruited from hospital rheumatology clinics and private rheumatology rooms in Sydney, Australia. All children attended an assessment day, where FMS were assessed by a senior paediatric physiotherapist, physical fitness was assessed using the multistage 20-metre shuttle run test, and physical activity and physical and psychosocial well-being were assessed with questionnaires. These results were compared with age-and gender-matched peers from the NSW Schools Physical Activity and Nutrition Survey and the Health of Young Victorians Study using logistic regression analysis. Results: Twenty-eight children with JIA participated in this study. There were no differences in the proportion of children who had mastered FMS between children with JIA and their healthy peers (P > 0.05). However, there was a trend for children with JIA to have poorer physical fitness and be less physically active than healthy peers. Parents of children with JIA indicated more physical and psychosocial impairments among their children and themselves compared with parents of healthy children (P < 0.05). Conclusions: This is the first study in Australia to compare FMS, physical activity and fitness in children with JIA and their peers. While older children with JIA appear to have poorer physical fitness and physical activity levels than their peers, there is no difference in FMS.
British Journal of Sports Medicine, 2012
This section features a recent systematic review that is indexed on PEDro, the Physiotherapy Evid... more This section features a recent systematic review that is indexed on PEDro, the Physiotherapy Evidence Database (www.pedro.org.au). PEDro is a free, web-based database of evidence relevant to physiotherapy.
British Journal of Sports Medicine, 2010
M ore than 100 million musculoskeletal (tendon/muscle/bone) injuries occur annually worldwide. Of... more M ore than 100 million musculoskeletal (tendon/muscle/bone) injuries occur annually worldwide. Of these, 30% to 50% are tendon and ligament injures [1], which cause significant loss of performance in sport and decreased functional capacity in the workplace and negatively affect the