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Dooley K, Snodgrass S, Drew M, Donnan L, Blyton S, Pizzari T, Rio E, Schultz A, Edwards S. Are we failing athletes with recurrent groin pain by focusing on group-level biomechanical analysis of their movement strategies? J Sci Med Sport 2022. [DOI: 10.1016/j.jsams.2022.09.067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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2
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Blyton S, Snodgrass S, Pizzari T, Birse S, Likens A, Edwards S. Movement variability in runners with a current or recent musculoskeletal injury: a systematic review. J Sci Med Sport 2022. [DOI: 10.1016/j.jsams.2022.09.162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Kinsella R, Pizzari T, Watson L, Cowan S. A comparison of isometric, concentric and eccentric rotator cuff exercises in the physiotherapy management of subacromial pain syndrome: feasibility study for a randomised controlled trial. J Sci Med Sport 2022. [DOI: 10.1016/j.jsams.2022.09.090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Cowan R, Mayes S, Cook J, Semciw A, Plass L, Pizzari T. Gluteal muscle size and quality in professional ballet dancers compared to non-dancing athletes. J Sci Med Sport 2022. [DOI: 10.1016/j.jsams.2022.09.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Akhundov R, Saxby D, Diamond L, Snodgrass S, Clausen P, Drew M, Dooley K, Pizzari T, Rio E, Schultz A, Donnan L, McGann T, Edwards S. Game-play affects hamstring but not adductor muscle fiber mechanics in elite U20 basketball athletes. J Sci Med Sport 2022. [DOI: 10.1016/j.jsams.2022.09.061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Cook J, Cowan R, Ganderton C, Long D, Pizzari T, Semciw A. Hormone therapy and exercise as interventions for post-menopausal women with greater trochanteric pain syndrome. A randomised clinical trial. J Sci Med Sport 2021. [DOI: 10.1016/j.jsams.2021.09.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Agricola R, Crossley K, Heerey J, Kemp J, King M, Lawrenson P, Link T, Majumdar S, Pizzari T, Smith A, Souza R, Srinivasan R. Cam morphology is associated with early hip OA features in young adult football players with and without hip and groin pain. J Sci Med Sport 2021. [DOI: 10.1016/j.jsams.2021.09.039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Heerey JJ, Srinivasan R, Agricola R, Smith A, Kemp JL, Pizzari T, King MG, Lawrenson PR, Scholes MJ, Souza RB, Link T, Majumdar S, Crossley KM. Prevalence of early hip OA features on MRI in high-impact athletes. The femoroacetabular impingement and hip osteoarthritis cohort (FORCe) study. Osteoarthritis Cartilage 2021; 29:323-334. [PMID: 33387651 PMCID: PMC8900484 DOI: 10.1016/j.joca.2020.12.013] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Revised: 11/03/2020] [Accepted: 12/21/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To compare early hip osteoarthritis (OA) features on magnetic resonance imaging (MRI) in high-impact athletes with and without hip and/or groin pain, and to evaluate associations between early hip OA features, the International Hip Outcome Tool (iHOT33) and Copenhagen Hip and Groin Outcome Score (HAGOS). DESIGN This case-control study evaluated data of the femoroacetabular impingement and hip osteoarthritis cohort (FORCe). One hundred and eighty-two symptomatic (hip and/or groin pain >6 months and positive flexion-adduction-internal-rotation (FADIR) test) and 55 pain-free high-impact athletes (soccer or Australian football (AF)) without definite radiographic hip OA underwent hip MRI. The Scoring Hip Osteoarthritis with MRI (SHOMRI) method quantified and graded the severity of OA features. Each participant completed the iHOT33 and HAGOS. RESULTS Hip and/or groin pain was associated with higher total SHOMRI (0-96) (mean difference 1.4, 95% CI: 0.7-2.2), labral score (adjusted incidence rate ratio (aIRR) 1.33, 95% CI: 1.1-1.6). Differences in prevalence of cartilage defects, labral tears and paralabral cysts between symptomatic and pain-free participants were inconclusive. There was a lower prevalence of effusion-synovitis in symptomatic participants when compared to pain-free participants (adjusted odds ratio (aOR) 0.46 (95% CI: 0.3-0.8). Early hip OA features were not associated with iHOT33 or HAGOS. CONCLUSIONS A complex and poorly understood relationship exists between hip and/or groin pain and early hip OA features present on MRI in high-impact athletes without radiographic OA. Hip and/or groin pain was associated with higher SHOMRI and labral scores.
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Affiliation(s)
- J J Heerey
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia.
| | - R Srinivasan
- Department of Radiology and Biomedical Imaging, University of California-San Francisco, CA, USA.
| | - R Agricola
- Department of Orthopaedics, Erasmus University Medical Center, Rotterdam, The Netherlands.
| | - A Smith
- School of Physiotherapy and Exercise Science, Curtain University, Perth, Australia.
| | - J L Kemp
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia.
| | - T Pizzari
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia.
| | - M G King
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia.
| | | | - M J Scholes
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia.
| | - R B Souza
- Department of Radiology and Biomedical Imaging, University of California-San Francisco, CA, USA; Department of Physical Therapy and Rehabilitation Science, University of California-San Francisco, CA, USA.
| | - T Link
- Department of Radiology and Biomedical Imaging, University of California-San Francisco, CA, USA.
| | - S Majumdar
- Department of Radiology and Biomedical Imaging, University of California-San Francisco, CA, USA.
| | - K M Crossley
- La Trobe Sport and Exercise Medicine Research Centre, School of Allied Health, Human Services and Sport, La Trobe University, Bundoora, Australia.
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Ganderton C, Kinsella R, Watson L, Pizzari T. Getting more from standard rotator cuff strengthening exercises. Shoulder Elbow 2020; 12:203-211. [PMID: 32565922 PMCID: PMC7285972 DOI: 10.1177/1758573219888829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2019] [Revised: 09/16/2019] [Accepted: 10/21/2019] [Indexed: 11/17/2022]
Abstract
BACKGROUND A simple modification to standard rotator cuff exercises using an additional resistance band around the scapula has been recommended in the clinical setting, postulated to encourage activation of the posterior scapular stabilisers and increase rotator cuff activation. The aim of this clinical laboratory study was to compare scapular and rotator cuff muscle activation between standard and modified exercises. METHODS Electromyographic data were collected from 10 healthy adults via surface and intramuscular electrodes from the scapular and rotator cuff muscles. Internal and external rotation exercises of the shoulder with the arm abducted to 0°, 45° and 90° were performed using one handheld resistance band (standard) or two bands with the additional band applied to the scapula (modified). RESULTS Activation of the trapezii and rhomboid muscles during the modified exercises at 0° and 45° of abduction was significantly greater when compared to the standard exercises (P < 0.05). No significant differences were found in rotator cuff muscle activation. DISCUSSION Applying resistance to the posterior scapula increases activation of some scapular stabilising muscles particularly in lower ranges of abduction. This study provides preliminary evidence that this simple modification can elicit greater scapular muscle activity, potentially producing enhanced exercise outcomes with minimal additional effort.
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Affiliation(s)
- C Ganderton
- La Trobe Sport and Exercise Medicine Research Centre, College of Science, Health and Engineering, La Trobe University, Melbourne, Australia,Department of Health Professions, Faculty of Health, Arts and Design, Swinburne University of Technology, Melbourne, Australia
| | - R Kinsella
- La Trobe Sport and Exercise Medicine Research Centre, College of Science, Health and Engineering, La Trobe University, Melbourne, Australia,Physiotherapy Department, St Vincent’s Hospital, Melbourne, Australia
| | - L Watson
- Melbourne Shoulder Group, Melbourne, Australia
| | - T Pizzari
- La Trobe Sport and Exercise Medicine Research Centre, College of Science, Health and Engineering, La Trobe University, Melbourne, Australia,T Pizzari, La Trobe Sport and Exercise Medicine Research Centre, College of Science, Health and Engineering, La Trobe University, Melbourne, Australia.
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Green B, Lin M, McClelland J, Semciw A, Schache A, Rotstein A, Cook J, Pizzari T. Which factors are predictive of return to play and re-injury following calf muscle strain injury? J Sci Med Sport 2019. [DOI: 10.1016/j.jsams.2019.08.167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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11
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Perrott M, Pizzari T, Cook J. Does a lumbopelvic stability program improve hopping and landing measures compared to an active control? – a randomised trial. J Sci Med Sport 2019. [DOI: 10.1016/j.jsams.2019.08.209] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Heerey J, Srinivasan R, Smith A, Kemp J, King M, Lawrenson P, Scholes M, Pizzari T, Souza R, Majumdar S, Crossley K. MRI defined intra-articular hip findings are seen in semi-elite football players with and without hip-related pain. J Sci Med Sport 2019. [DOI: 10.1016/j.jsams.2019.08.261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Heerey J, Agricola R, Smith A, Kemp J, King M, Lawrenson P, Scholes M, Pizzari T, Crossley K. Hip-related pain is not associated with bony hip morphology in male and female semi-elite football players. J Sci Med Sport 2019. [DOI: 10.1016/j.jsams.2019.08.262] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Green R, Pizzari T, McClelland J, Zacharias A, Huynh P, Weerakkody N, Semciw A. Between session reliability of intramuscular electromyography for segments of gluteus medius and minimus during gait and stepping tasks. J Electromyogr Kinesiol 2019; 47:96-104. [DOI: 10.1016/j.jelekin.2019.05.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 05/19/2019] [Accepted: 05/22/2019] [Indexed: 11/17/2022] Open
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Donnan L, Pizzari T, O’Dwyer N, Edwards S. Variations in lumbar spine joint moments in Australian Rules Football players with a history of hamstring injury. J Sci Med Sport 2018. [DOI: 10.1016/j.jsams.2018.09.038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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16
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Green B, McClelland J, Semciw A, Pizzari T. Calf strain injuries in elite Australian rules football: Epidemiological features, muscles injured and return to play. J Sci Med Sport 2018. [DOI: 10.1016/j.jsams.2018.09.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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17
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Dooley K, Drew M, Schultz A, Snodgrass S, Pizzari T, McGann T, Donnan L, Rio E, Edwards S. High prevalence of groin pain identified in elite basketball U20s athletes and its impact on function and quality of life. J Sci Med Sport 2018. [DOI: 10.1016/j.jsams.2018.09.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Perrott M, Cook J, Ellis M, Pizzari T. Movement variability improved more with stability exercise than stretching: A randomised controlled trial. J Sci Med Sport 2018. [DOI: 10.1016/j.jsams.2018.09.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Ganderton C, Semciw A, Cook J, Moreira E, Pizzari T. Education with exercise improves pain and dysfunction in post-menopausal women with greater trochanteric pain syndrome. J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2017.09.294] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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20
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Perrott M, Pizzari T, Cook J. Assessment of lumbopelvic stability: Beyond a three-point rating scale. J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2017.09.240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Perrott M, Cook J, Pizzari T. Improving balance: Could it influence lumbopelvic stability? J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2017.09.241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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22
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Pizzari T, McClelland J, Semciw A. Inducing slight hip discomfort reduces hip extension in gait. J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2017.09.291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Armitt G, Pizzari T, Semciw A. The efficacy of interventions for improving shoulder proprioception in people with shoulder instability – A systematic review. J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2017.01.125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Ganderton C, Pizzari T, Harle T, Cook J, Semciw A. Gluteus medius, gluteus minimus and tensor fascia latae are overactive during gait in post-menopausal women with greater trochanteric pain syndrome. J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2017.01.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Zacharias A, Pizzari T, English D, Kapakoulakis T, Green R. Gluteal muscle atrophy and fatty deposits increase with advancing hip osteoarthritis. J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2016.12.072] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Warby S, Ford J, Pizzari T, Hahne A, Watson L. The effect of rehabilitation programs on multidirectional instability of the shoulder: A randomized controlled trial. J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2017.01.222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Green B, Pizzari T. What is the role of isokinetic strength assessment in identifying hamstring muscle strain injury risk in sport? A systematic review and meta-analysis. J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2017.01.219] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Zacharias A, Pizzari T, English DJ, Kapakoulakis T, Green RA. Hip abductor muscle volume in hip osteoarthritis and matched controls. Osteoarthritis Cartilage 2016; 24:1727-1735. [PMID: 27163446 DOI: 10.1016/j.joca.2016.05.002] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 04/19/2016] [Accepted: 05/02/2016] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Hip abductor muscle strength and function is negatively impacted by the presence of hip osteoarthritis (OA). This study aimed to quantify differences in hip abductor muscle volume, fatty infiltration and strength in a unilateral hip OA population when compared to a control group. Impact of radiographic severity of OA on these variables was also examined. METHODS Volumes of gluteus maximus (GMax), medius (GMed) minimus (GMin) and tensor fascia lata (TFL) was measured using MRI and muscle volume asymmetry between limbs was calculated. Fatty infiltrate within muscles was graded using the Goutallier classification system. Hip abduction and rotation strength was tested using a dynamometer. Differences between groups or limbs were analysed using t-tests and differences in fatty infiltration using non-parametric tests. RESULTS A statistically significant decrease in muscle volume was identified in GMax (P < 0.01), GMed (P < 0.02) and GMin (P < 0.01) on the affected side in the OA group compared to both the contralateral side and the control group and differences were related to severity of OA. Hip abduction and internal rotation strength was reduced in the OA group. Increased levels of fatty infiltration were identified in the affected limbs of the OA group for GMax (P = 0.01) and GMin (P = 0.04). CONCLUSION Gluteal muscle atrophy, increased gluteal fatty infiltration and hip strength deficits were evident in the affected hips of OA participants. Since severity of OA was related to the extent of atrophy and fatty deposits, rehabilitation programs targeting these muscles could reverse or halt the progression of these structural and functional deficits.
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Affiliation(s)
- A Zacharias
- Department of Pharmacy and Applied Science, College of Science, Health and Engineering, La Trobe University, Victoria, Australia; Sport, Exercise and Rehabilitation Research Focus Area, Australia.
| | - T Pizzari
- Department of Rehabilitation, Nutrition and Sport, College of Science, Health and Engineering, La Trobe University, Victoria, Australia; Sport, Exercise and Rehabilitation Research Focus Area, Australia
| | - D J English
- Department of Pharmacy and Applied Science, College of Science, Health and Engineering, La Trobe University, Victoria, Australia; Fusion Physiotherapy, Bendigo, Victoria, Australia
| | | | - R A Green
- Department of Pharmacy and Applied Science, College of Science, Health and Engineering, La Trobe University, Victoria, Australia; Sport, Exercise and Rehabilitation Research Focus Area, Australia
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Ganderton C, Semciw A, Cook J, Pizzari T. The effect of female sex hormone supplementation on tendon in pre and postmenopausal women: A systematic review. J Musculoskelet Neuronal Interact 2016; 16:92-104. [PMID: 27282453 PMCID: PMC5114352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES Oestrogen deprivation has been shown to have a negative effect on connective tissue and its turnover. A link may exist between supplemental oestrogen, preservation of tendon collagen and less tendon abnormality. The aim was to determine the effects of female sex hormone supplementation (FSHS) on tendon. METHODS A systematic search of nine key health databases; Medline, CINAHL, EMBASE, SPORTDiscus, AUSPORT and AMI, Cochrane Library, SafetyLit and PEDro was completed (to Feb 24, 2016). The search yielded 6378 records using terms relating to hormone (oestrogen, estrogen, hormone replacement therapy, HRT, estrogen therapy, oestrogen therapy, oral contraceptive pill) and tendon. Quality assessment, data extraction and data synthesis of included papers was undertaken. RESULTS Low level of evidence for all outcomes; no positive or negative link between FSHS and molecular, mechanical and morphological tendon response outcomes, and the addition of exercise to FSHS, had minimal effects on tendon CSA. CONCLUSIONS The effect of oestrogen supplementation on tendon is contradictory and inconsistent. This review suggests there is a need for further studies to understand the effects of FSHS on tendon tissue at a mechanical, morphological and molecular level.
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Affiliation(s)
- C. Ganderton
- Faculty of Health Science, School of Allied Health, Department of Physiotherapy, La Trobe University, Australia,Corresponding author: Charlotte Ganderton, Department of Physiotherapy, La Trobe University, 3086, Australia E-mail:
| | - A. Semciw
- Faculty of Health Science, School of Allied Health, Department of Physiotherapy, La Trobe University, Australia,School of Health of Rehabilitation Sciences, University of Queensland, Australia
| | - J. Cook
- Faculty of Health Science, School of Allied Health, Department of Physiotherapy, La Trobe University, Australia
| | - T. Pizzari
- Faculty of Health Science, School of Allied Health, Department of Physiotherapy, La Trobe University, Australia
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Wollin M, Thorborg K, Pizzari T. The acute effect of match play on hamstring strength and lower limb flexibility in elite youth football players. Scand J Med Sci Sports 2016; 27:282-288. [PMID: 26926311 DOI: 10.1111/sms.12655] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2016] [Indexed: 11/27/2022]
Abstract
The aim of this study was to investigate the effect of competitive football match play on hamstring strength and lower limb flexibility. Fifteen male international youth football players were included. Hamstring strength and associated pain ratings, ankle dorsiflexion, hip extension, knee extension and flexion range of motion were evaluated immediately post-match and at intervals of 24, 48, and 72 h post-match. Strength significantly reduced post-match (P < 0.01), mean difference -0.43 (CI95 : -0.56, -0.30) and 24 h post (P < 0.05) mean difference -0.12 Nm/kg (CI95 : -0.20, -0.04). The associated pain scores significantly increased at the post-match (P < 0.01, ES = 0.61) and 24 h (P < 0.01, ES = 0.55) time intervals. At the 48 and 72 h post-match tests no significant difference was found for strength or pain ratings. No significant differences were detected for any of the range of motion measures. Competitive football match play has a significant acute and transient effect on isometric hamstring strength and associated pain levels during resisted knee flexion in male international youth players. Range of motion measures appear to remain relatively unaffected by match play. Isometric hamstring strength testing and associated pain levels might be considered for inclusion in-season to monitor player's post-match hamstring recovery characteristics.
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Affiliation(s)
- M Wollin
- Department of Physical Therapies, Australian Institute of Sport, Bruce, ACT, Australia.,Department of Rehabilitation, Nutrition and Sport, School of Allied Health, La Trobe University, Melbourne, VIC, Australia
| | - K Thorborg
- Department of Orthopaedic Surgery, Sports Orthopaedic Research Center, Faculty of Health Sciences, Amager-Hvidovre Hospital, University of Copenhagen, Copenhagen, Denmark.,Physical Medicine and Rehabilitation - Copenhagen (PMR-C), Amager-Hvidovre Hospital, Copenhagen University Hospital, Copenhagen, Denmark
| | - T Pizzari
- Department of Rehabilitation, Nutrition and Sport, School of Allied Health, La Trobe University, Melbourne, VIC, Australia
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Perrott M, Pizzari T, Cook J. Are the kinematics of the lower limb and trunk captured on a markerless motion capture system comparable to traditional marker-based system? J Sci Med Sport 2015. [DOI: 10.1016/j.jsams.2015.12.419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Taylor C, Pizzari T, Cook J. Development of a valid and reliable musculoskeletal screening protocol for Australian football. J Sci Med Sport 2015. [DOI: 10.1016/j.jsams.2015.12.457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Taylor C, Pizzari T, Cook J. Injury profile for under 16 and under 18 levels of junior elite Australian Football. J Sci Med Sport 2014. [DOI: 10.1016/j.jsams.2014.11.387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Warby S, Ford J, Pizzari T, Hahne A, Watson L. A pilot randomized crossover trial comparing the effect of two exercise based management protocols on multidirectional instability of the glenohumeral joint: A research protocol. J Sci Med Sport 2013. [DOI: 10.1016/j.jsams.2013.10.150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Semciw A, Pizzari T, Green R. Are swimmers prone to deloading related dysfunction of gluteus medius and gluteus minimus? J Sci Med Sport 2013. [DOI: 10.1016/j.jsams.2013.10.107] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Munteanu S, Munteanu L, Landorf K, Bonanno D, Pizzari T, Cook J, Menz H. Effectiveness of customised foot orthoses for the treatment of Achilles tendinopathy: Preliminary findings of a randomised controlled trial. J Sci Med Sport 2013. [DOI: 10.1016/j.jsams.2013.10.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Warby S, Pizzari T, Ford J, Hahne A, Watson L. The effect of exercise based management for multidirectional instability of the glenohumeral joint: A systematic review. J Sci Med Sport 2013. [DOI: 10.1016/j.jsams.2013.10.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Opar M, Pizzari T, Cook J, Ford J, Wallis A. Diagnosing exercise related pubic pain: Findings from exploratory focus groups involving clinical experts. J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.342] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Pizzari T, Taylor R, Coburn P. The who, where and how.. Understanding hamstring injuries in the AFL. J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Wright D, Rubin C, Schutz K, Kerje S, Kindmark A, Brandström H, Andersson L, Pizzari T, Jensen P. Onset of sexual maturity in female chickens is genetically linked to loci associated with fecundity and a sexual ornament. Reprod Domest Anim 2012; 47 Suppl 1:31-6. [PMID: 22212210 DOI: 10.1111/j.1439-0531.2011.01963.x] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
Onset of sexual maturation is a trait of extreme importance both evolutionarily and economically. Unsurprisingly therefore, domestication has acted to reduce the time to sexual maturation in a variety of animals, including the chicken. In comparison with wild progenitor chickens [the Red Junglefowl (RJF)], domestic layer hens attain maturity approximately 20% earlier. In addition, domestic layers also possess larger combs (a sexual ornament), produce more eggs and have denser bones. A large quantitative trait loci (QTL) analysis (n=377) was performed using an F(2) intercross between a White Leghorn layer breed and a RJF population, with onset of sexual maturity measured and mapped to three separate loci. This cross has already been analysed for comb mass, egg production and bone allocation. Onset of sexual maturity significantly correlated with comb mass, whilst the genetic architecture for sexual maturity and comb mass overlapped at all three loci. For two of these loci, the QTL for sexual maturity and comb mass were statistically indistinguishable from pleiotropy, suggesting that the alleles that increase comb mass also decrease onset of sexual maturity.
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Affiliation(s)
- D Wright
- IFM Biology, AVIAN Behaviour Genomics and Physiology Group, Linköping University, Linköping, Sweden.
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Georgiou A, Smith A, Pizzari T. Immune-mediated sperm selection between competing males in the female tract. J Reprod Immunol 2012. [DOI: 10.1016/j.jri.2012.03.379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Semciw A, Green R, Pizzari T, Briggs C. Verification of a standardized method for inserting intramuscular EMG electrodes into uniquely oriented segments of gluteus minimus and gluteus medius. Clin Anat 2012; 26:244-52. [DOI: 10.1002/ca.22055] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 01/27/2012] [Accepted: 02/04/2012] [Indexed: 11/08/2022]
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Freckleton G, Pizzari T, Cook J, Young M. The predictive validity of a single leg bridge test for hamstring injuries in football players. J Sci Med Sport 2011. [DOI: 10.1016/j.jsams.2011.11.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Semciw, Pizzari T, Green R. Intramuscular EMG placement for two segments of gluteus minimus and three segments of gluteus medius with unique orientation and function. J Sci Med Sport 2011. [DOI: 10.1016/j.jsams.2011.11.191] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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