Julie Anne Hides

Australian Catholic University | ACU · Centre for Musculoskeletal Research, MMIHR, ACU

Objectives Compare hamstring strength between Australian Football League (AFL) players with and without a prior hamstring injury and determine the effect of the number of previous hamstring injuries, time since the last injury, and injury severity, on hamstring strength. Design Cross-sectional, retrospective. Setting AFL clubs. Participants 124...

Background: Injury to the head and neck are common in combat sport athletes. Impairments of the cervical spine have been found in some athletes who participate in sports with high forces and collisions. There is a lack of research on the effects of combat sports on the cervical spine. Objective: The primary study aim was to investigate differenc...

Objectives To investigate for differences in vestibulo-ocular function between active male combat sport athletes and a healthy control group. In addition, to explore the relationship between symptom-based outcome measures with vestibulo-ocular function. Design Cross-sectional. Methods 40 male adult combat sport athletes and 40 active male control...

Background Headache disorders are highly prevalent worldwide, but not well investigated in adolescents. Few studies have included representative nationwide samples. This study aimed to present the prevalence and burden of recurrent headache in Australian adolescents. Methods The prevalence of recurrent headache, headache characteristics (severity...

Background The pathophysiology of concussion is complex. Altered sensorimotor function post-concussion may contribute to the wide range of symptoms and impairments reported. There is currently limited evidence documenting changes in sensorimotor function during the recovery period. The aim of this study was to investigate the effect of concussion o...

Objective To investigate trunk muscle size and function in elite and community volleyball players with and without a history of head, neck or upper limb injury. Design Cross-sectional observational study. Setting Volleyball training camp or training sessions. Participants 86 volleyball players (elite = 29; community = 57). Main outcome measures...

Background The hamstrings remain the most injured muscle group within the Australian Football League (AFL). Objective To investigate preseason measures of hip and knee joint position sense (JPS) and prospective hamstring injury in AFL players. Design Prospective cohort study. Methods A total of 116 AFL players were recruited for this study. JPS...

This study aimed to explore the association between hamstring strength, age and lower limb soft tissue injury history and subsequent hamstring injury among Australian Football League (AFL) players. This prospective cohort study recruited 125 players from three professional AFL teams. Eccentric knee flexor strength was assessed while performing the...

Objective The purpose of this study was to describe the concussion-related symptoms reported among combat sport athletes with and without a history of concussion, and a history of neck injury. Design Cross-sectional survey. Setting Data were collected using an online survey instrument. Participants Three hundred and nine adult combat sport athle...

Study design A cross-sectional study of non-elite volleyball players aged 13–17years. Objectives To evaluate the presence and location of pain during the single leg decline squat (SLDS) and compare patellar tendon thickness, structure, neovascularisation and symptom severity between SLDS-derived groups. Methods 32 male and 25 female participants...

Background context: One of the primary changes in the neuromuscular system in response to microgravity is skeletal muscle atrophy, which occurs especially in muscles that maintain posture while being upright on Earth. Reduced size of paraspinal and abdominal muscles has been documented after spaceflight. Exercises are undertaken on the Internation...

Zusammenfassung Weltweit setzen Physiotherapeuten die Sonografie sowohl in der klinischen Praxis als auch zu Forschungszwecken ein. Die Autorinnen erläutern die wichtigsten Anwendungsmöglichkeiten und beschreiben drei klinische Anwendungsgebiete, bei denen sich die Untersuchung per Ultraschall in der Physiotherapie lohnen könnte.

Zusammenfassung Muskelverletzungen treten in Ballsportarten häufig auf, so auch im Australian Rules Football. Doch wie bestimmt der Physiotherapeut zusammen mit dem verletzten Spieler den richtigen Zeitpunkt für den Return to Game? Könnte Sonografie bei dieser Entscheidung unterstützen? Ein Forschungsteam aus Australien ging dieser Frage nach.

Purpose Exercise therapy such as motor control training (MCT) has been shown to reduce pain and disability in people with low back pain (LBP). It is unknown which patients are most likely to benefit. This longitudinal cohort study aimed to: (1) retrospectively examine records from a large cohort of patients who received MCT treatment, (2) identify...

Introduction: Intra-articular hip joint pathology is a source of hip and groin pain in active individuals and is thought to be a precursor to hip osteoarthritis. Limited evidence exists to guide appropriate physiotherapy management for these patients. Identification of which hip muscles are affected may help clinicians to develop effective exercis...

The burden of injuries sustained in community Australian football is largely unknown due to the lack of viable injury surveillance methods. The use of novel methods such as automated text messaging (SMS) combined with online surveys for new injury registrations has not been evaluated in community sport. The aim of this study was to investigate the...

Data S1. Supporting information

Background The intrinsic foot muscles (IFMs) are important contributors to optimal foot function. While assessment of IFM morphology using ultrasound imaging in non-weight bearing has been established, this does not evaluate the foot in its primary functional position of weight bearing. Research question Is ultrasound imaging a reliable and clinic...

Objectives Sport-related concussions are common in adolescent contact sports. Vestibulo-ocular dysfunction has been reported in athletes post-concussion. There is a lack of research on vestibulo-ocular function in sporting adolescents, and the influence of previous concussions on the vestibular system in this population. The aim of this study was t...

Background The effect of vitamin D supplementation on postural muscles of the trunk is of particular interest because low 25‐hydroxyvitamin D [25(OH) D] levels are associated with decreased postural balance and increased risk of falls. Understanding the role of vitamin D supplementation plays in trunk muscle function of older adults is necessary, a...

Background: Previous research explored muscle activity in four distinct sitting postures with fine-wire electromyography, and found that lumbar multifidus muscle activity increased incrementally between sitting with flat thoracolumbar and lumbar regions, long thoracolumbar lordosis, or short lordosis confined to the lumbar region. This study used...

Purpose: Sports related concussion (SRC) is a risk for players involved in high impact, collision sports. A history of SRC is a risk factor for future concussions, but the mechanisms underlying this are unknown. Despite evidence that most visible signs and symptoms associated with sports concussion resolve within 7-10 days, it has been proposed th...

Objective To examine whether physical measurements of the sensorimotor system predict concussion incurred by footballers. Design Prospective cohort study. Setting Australian professional sport setting. Participants Fifty-three rugby union and rugby league players. Assessment of risk factors Physical measurements including balance (sway across s...

Context: Low back pain (LBP) and lower limb injuries are common among Australian Football League (AFL) players. Smaller size of 1 key trunk muscle, the lumbar multifidus (MF), has been associated with LBP and injuries in footballers. The size of the MF muscle has been shown to be modifiable with supervised motor-control training programs. Among AF...

Objectives: There is a high incidence of injuries in rugby union due to the physical nature of the game. There is a lack of large-scale injury surveillance data reported for school level rugby players of different ages. Our study aimed to investigate the frequency and nature of injuries being sustained during an Australian school level rugby union...

Background: Sports concussion is a risk for players involved in high impact, collision sports. Post-concussion, the majority of symptoms subside within 7-10 days, but can persist in 10-20% of athletes. Understanding the effects of sports concussion on sensorimotor systems could inform physiotherapy treatment. Objective: To explore changes in sen...

Test-retest reliability of the combined process of ultrasound imaging (USI) and image measurement of thickness of abdominal and upper lumbar multifidus (MF) muscles and MF cross sectional area (CSA) of older adults has not been established. Imaging muscles of older adults can be challenging due to age-related changes in the spine and skeletal muscl...

There is a high incidence of injuries in rugby union due to the physical nature of the game. In youth rugby union, there are large variations in injury rates reported. Our study investigated the rates of injuries in school-level rugby union players in Australia using the consensus statement for rugby union injuries. Injury surveillance was conducte...

Low back pain (LBP) is a common problem in football (soccer) players. The effect of LBP on the trunk and hip muscles in this group is unknown. The relationship between LBP and trunk muscle size and function in football players across the preseason was examined. A secondary aim was to assess hip muscle strength. Twenty-five elite soccer players part...

Objectives: To investigate if size and activation of the gluteal muscles is a risk factor for hamstring injuries in elite AFL players. Design: Prospective cohort study. Methods: Twenty-six elite male footballers from a professional Australian Football League (AFL) club participated in the study. At the beginning of the season bilateral gluteus...

Background: Age-related changes in the trunk (abdominal and lumbar multifidus) muscles and their impact on physical function of older adults are not clearly understood. Objectives: To systematically summarise studies of these trunk muscles in older adults. Data sources: Cochrane Library, Pubmed, EMBASE and CINAHL were searched using terms for...

Purpose In microgravity, muscle atrophy occurs in the intrinsic muscles of the spine, with changes also observed in the abdominal muscles. Exercises are undertaken on the International Space Station and on Earth following space flight to remediate these effects. Similar effects have been seen on Earth in prolonged bed rest studies and in people wit...

Objectives: To investigate whether motor control training alters automatic contraction of abdominal muscles in elite cricketers with low back pain (LBP) during performance of a simulated unilateral weight-bearing task. Design: Clinical trial. Methods: 26 male elite-cricketers attended a 13-week cricket training camp. Prior to the camp, partici...

Background: Head and neck injuries are common in football. Injuries such as concussion can have serious consequences. Previous studies have shown that size and function of trunk muscles are predictive of lower limb injuries in professional Australian Football League (AFL) players. It is unknown whether measurement of trunk muscles can also be used...

Objectives: Previous research has shown that motor control training improved size and function of trunk muscles in elite football players with and without low back pain (LBP). Imbalances in hip muscles have been found in athletes with LBP and it is not known if motor control training can change these muscles. This study investigated if a motor con...

Background: Multimorbidity in heart failure (HF), defined as HF of any aetiology and multiple concurrent conditions that require active management, represents an emerging problem within the ageing HF patient population worldwide. Methods: To inform this position paper, we performed: 1) an initial review of the literature identifying the ten most...

Objectives: To determine measurement reliability of abdominal and lumbar MF muscles from a single ultrasound (US) image in older adults. Methods: Resting thickness of rectus abdominis and obliquus externus, resting and contracted thickness of obliquus internus, transversus abdominis and lumbar MF, and resting cross-sectional area (CSA) of MF lev...

Deficits in muscles of the lumbo-pelvic region, such as a relatively small multifidus muscle, have been used to predict lower limb injuries in professional football players. Results have been less consistent for the size of the quadratus lumborum (QL) muscle. Changes in size of the multifidus and QL muscles could be functionally related to each oth...

Few studies quantify spinal posture behaviour at both the thoracolumbar and lumbar spinal regions. This study compared spontaneous spinal posture in 50 asymptomatic participants (21 males) during three conditions: 10-min computer task in sitting (participants naïve to the measure), during their perceived 'correct' sitting posture, and standing. Thr...

The prevalence of low back pain (LBP) for astronauts in space (68%) is higher than the 1-mo prevalence for the general population on Earth (39%). It is unclear whether differences occur between healthy subjects and astronauts with a history of LBP. Knowledge of this issue is important to assess whether a history of LBP could have an operational imp...

Objective: To investigate the pattern of muscle activation of the individual hip adductor muscles using a standardised simulated unilateral weight-bearing task. Design: A repeated measures design. Setting: Laboratory. Participants: 20 healthy individuals (11 females, 9 males) participated in the study. Age ranged from 20 to 25 years. Main o...

Study design: Cross-sectional. Objectives: To quantify the magnitude and distribution of muscle fat infiltration (MFI) within the cervical multifidus and semispinalis cervicis muscles in participants with chronic whiplash-associated disorders (WADs) compared to those who have fully recovered from a whiplash injury and healthy controls. Backgrou...

PURPOSE: Trunk control is essential in ballet and may be compromised in dancers with a history low back pain (LBP) by associated changes in motor control. This study aimed to compare trunk mechanical properties between professional ballet dancers with and without a history of LBP. As a secondary aim we assessed whether asking dancers to use motor i...

Acetabular labral tears are a source of hip pain and are considered to be a precursor to hip osteoarthritis. Hip flexor muscles contribute to hip joint stability and function but it is unknown if their size and function is altered in the presence of labral pathology. This study aimed to investigate hip flexor muscle size, strength and recruitment p...

Evetts SN, Caplan N, Debuse D, Lambrecht G, Damann V, Petersen N, Hides J. Post space mission lumbo-pelvic neuromuscular reconditioning: a European perspective. Aviat Space Environ Med 2014; 85:764–5. Long-duration exposure to the space environment causes physical adaptations that are deleterious to optimal functioning on Earth. Post-mission rehabi...

Background: In Australian football, lower limb injuries have had the highest incidence and prevalence rates. Previous studies have shown that football players with relatively more severe preseason and playing season hip, groin, and thigh injuries had a significantly smaller multifidus muscle compared with players with no lower limb injuries. Rehab...

Objectives Australian Football League (AFL) players have a high incidence of back injuries. Motor control training to increase lumbopelvic neuromuscular control has been effective in reducing low back pain (LBP) and lower limb injuries in elite athletes. Control of pelvic and femoral alignment during functional activity involves the piriformis musc...

In Australian Football, hip, groin and thigh (HGT) muscle injuries have had the highest incidence and prevalence. A previous study showed that football players with relatively more severe pre-season 'HGT' injuries had a significantly smaller size of the multifidus muscle. This study was designed to examine the robustness of multifidus muscle measur...

Decreased size and altered function of lumbo-pelvic muscles has been found in elite athletes with low back pain (LBP). Previous research has shown that training trunk neuromotor control in elite football players with and without LBP improved the size and function of muscles important in stability of the lumbo-pelvic region. Hip muscles also contrib...

Among injuries reported by the Australian Football League (AFL), lower limb injuries have shown the highest incidence and prevalence rates. Deficits in the muscles of the lumbo-pelvic region, such as a smaller size of multifidus (MF) muscle, have been related to occurrence of lower limb injuries in the pre-season in AFL players. Motor control train...

To evaluate the morphology of transversus abdominis and obliquus internus abdominis muscles and the ability to "draw in" the abdominal wall, in professional ballet dancers without low back pain, with low back pain or both hip region and low back pain. Observational study. Magnetic resonance images of 31 dancers were taken at rest and during volunta...

Study design: Cross-sectional, observational study. Objectives: To investigate the cross-sectional area (CSA) of trunk muscles in professional ballet dancers with and without low back pain (LBP). Background: LBP is the most prevalent chronic injury in classical ballet dancers. Research on nondancers has found changes in trunk muscle size and s...

Introduction: Clinical tests such as a single-leg squat are used to evaluate control of the trunk, pelvis, hip and knee during functional weight bearing tasks. One important function of the kinetic chain is effective load transfer and distribution of forces. Deficits in control of the trunk have been shown to be predictive of knee injuries in athle...

Introduction: Prosthetic and operative modifications in total knee arthroplasty (TKA) have been proposed to maximise post-operative knee flexion as it is essential in routine functional activities. Methods: We performed a double blind randomised controlled trial to compare clinical outcomes of primary cruciate-retaining TKA for osteoarthritis wi...

Trunk muscles, such as the transversus abdominis (TrA) and multifidus, play a key role in lumbopelvic stability, which is important in athletic performance. Asymmetry or imbalance in these and other trunk muscles could result from the specific requirements of the game of Australian rules football. To determine whether seasonal variations in the siz...

Op dit moment wordt in de geneeskunde uitgebreid gebruikgemaakt van real-time echografie. Deze methode is een veilige, kosteneffectieve en zeer toegankelijke onderzoekmethode ten aanzien van verschillende organen en weefsels. Een gebied waarop echografie heeft bewezen nuttig te zijn is onderzoek naar pathologie van het bewegingsapparaat. Weefsels d...

To examine muscle cross-sectional areas (CSA) and symmetry of lumbar multifidus (LM) muscles in elite weightlifters. Cross-sectional observational study Neuromuscular and Pain Research Unit. Thirty-one elite weightlifters (15 males) participated in the study, representing the population of Thai weightlifters eligible for national selection. Resting...

This panel-randomized intervention trial was designed to examine the effect of a motor control training program for elite Australian Football League players with and without low back pain (LBP). The outcome measures included cross-sectional area (CSA) and symmetry of multifidus, quadratus lumborum, and psoas muscles and the change in CSA of the tru...

A ustralian Rules Football (AFL), a sport unique to Australia, is physically demanding. Professional football players require high levels of aerobic fitness, along with speed, explosive strength, and agility. 15,19,41 The preseason period involves a higher training load than the playing season and has been associated with increased risk of injury i...