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sport AND recovery AND regeneration

Woo-Hwi Yang, Oliver Heine, Marijke Grau
In combat sports such as taekwondo (TKD), athletes rapidly reduce body weight to achieve a desired weight category. Competition takes place 16-24 h after weigh-in and thus, the recovery time is an important factor for competition performance. The purpose of this study was to investigate the impact of rapid weight reduction (RWR) on athletic performance and associated hemorheological properties considering relevant recovery time. Five male TKD athletes reduced body weight by 5% within 3½ days. A simulated competition day (SCD) was carried out after a 16 h recovery period...
2018: PloS One
Hamish McGorm, Llion A Roberts, Jeff S Coombes, Jonathan M Peake
Historically, heat has been used in various clinical and sports rehabilitation settings to treat soft tissue injuries. More recently, interest has emerged in using heat to pre-condition muscle against injury. The aim of this narrative review was to collate information on different types of heat therapy, explain the physiological rationale for heat therapy, and to summarise and evaluate the effects of heat therapy before, during and after muscle injury, immobilisation and strength training. Studies on skeletal muscle cells demonstrate that heat attenuates cellular damage and protein degradation (following in vitro challenges/insults to the cells)...
June 2018: Sports Medicine
Aleksandra Zebrowska, Robert Trybulski, Robert Roczniok, Wieslaw Marcol
OBJECTIVE: Physical methods are reported to be important for accelerating skeletal muscle regeneration, decreasing muscle soreness, and shortening of the recovery time. The aim of the study was to assess the effect of the physical methods of lymphatic drainage (PMLD) such as manual lymphatic drainage (MLD), the Bodyflow (BF) therapy, and lymphatic drainage by deep oscillation (DO) on postexercise regeneration of the forearm muscles of mixed martial arts (MMA) athletes. DESIGN AND METHODS: Eighty MMA athletes aged 27...
August 16, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
Lisa E Heaton, Jon K Davis, Eric S Rawson, Ryan P Nuccio, Oliver C Witard, Kimberly W Stein, Keith Baar, James M Carter, Lindsay B Baker
Team sport athletes face a variety of nutritional challenges related to recovery during the competitive season. The purpose of this article is to review nutrition strategies related to muscle regeneration, glycogen restoration, fatigue, physical and immune health, and preparation for subsequent training bouts and competitions. Given the limited opportunities to recover between training bouts and games throughout the competitive season, athletes must be deliberate in their recovery strategy. Foundational components of recovery related to protein, carbohydrates, and fluid have been extensively reviewed and accepted...
November 2017: Sports Medicine
Cagla Eren Cimenci, Gozde Uzunalli, Ozge Uysal, Fatih Yergoz, Ebru Karaca Umay, Mustafa O Guler, Ayse B Tekinay
Skeletal muscle cells are terminally differentiated and require the activation of muscle progenitor (satellite) cells for their regeneration. There is a clinical need for faster and more efficient treatment methods for acute muscle injuries, and the stimulation of satellite cell proliferation is promising in this context. In this study, we designed and synthesized a laminin-mimetic bioactive peptide (LM/E-PA) system that is capable of accelerating satellite cell activation by emulating the structure and function of laminin, a major protein of the basal membrane of the skeletal muscle...
July 8, 2017: Acta Biomaterialia
Paola Contreras-Muñoz, Joan Ramon Torrella, Xavier Serres, David Rizo-Roca, Meritxell De la Varga, Ginés Viscor, Vicente Martínez-Ibáñez, José Luis Peiró, Tero A H Järvinen, Gil Rodas, Mario Marotta
BACKGROUND: Skeletal muscle injuries are the most common sports-related injury and a major concern in sports medicine. The effect of platelet-rich plasma (PRP) injections on muscle healing is still poorly understood, and current data are inconclusive. PURPOSE: To evaluate the effects of an ultrasound-guided intramuscular PRP injection, administered 24 hours after injury, and/or posttraumatic daily exercise training for 2 weeks on skeletal muscle healing in a recently established rat model of skeletal muscle injury that highly mimics the muscle trauma seen in human athletes...
July 2017: American Journal of Sports Medicine
Michael Behringer, Diana Jedlicka, Molly McCourt, Matthias Ring, Joachim Mester
BACKGROUND: Recovery from exercise and competition is important in sports medicine, particularly when rest periods are short. The objective is to determine the efficacy of cryo exposition (CRY) and manual lymphatic drainage (MLD) to hasten short term recovery of muscle performance after eccentric contractions. METHODS: In a randomized controlled trial, 30 healthy sport students (21 males, 9 females; age: 25.7±2.8 years) performed 4×20 eccentric contractions of knee extensors, followed by 30 min MLD, CRY, or rest (RST) under controlled laboratory environment...
April 2016: Muscles, Ligaments and Tendons Journal
Cleber Ferraresi, Ying-Ying Huang, Michael R Hamblin
Photobiomodulation (PBM) describes the use of red or near-infrared (NIR) light to stimulate, heal, and regenerate damaged tissue. Both preconditioning (light delivered to muscles before exercise) and PBM applied after exercise can increase sports performance in athletes. This review covers the effects of PBM on human muscle tissue in clinical trials in volunteers related to sports performance and in athletes. The parameters used were categorized into those with positive effects or no effects on muscle performance and recovery...
December 2016: Journal of Biophotonics
Y M Zheng, W Z Li, Z X Wang, W Zhang, H Lv, J X Xiao, Y Yuan
OBJECTIVE: To report thigh muscle magnetic resonance imaging (MRI) tests of four Chinese patients with dystrophinopathy with edema changes in adductor longus muscles that mimics adductor enthesopathy. METHODS: Four boys, who were from four unrelated families and aged from 5 to 11 years, were investigated because of the clinical manifestations including myalgia or muscle weakness or the incidental findings of elevated serum creatine kinase levels, and were diagnosed with dystrophinopathy by gene test of Duchenne muscular dystrophy (DMD)...
October 18, 2016: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
Katarzyna A Szcześniak, Anna Ciecierska, Piotr Ostaszewski, Tomasz Sadkowski
β-Hydroxy-β-methylbutyrate (HMB) is a popular ergogenic aid used by human athletes and as a supplement to sport horses, because of its ability to aid muscle recovery, improve performance and body composition. Recent findings suggest that HMB may stimulate satellite cells and affect expressions of genes regulating skeletal muscle cell growth. Despite the scientific data showing benefits of HMB supplementation in horses, no previous study has explained the mechanism of action of HMB in this species. The aim of this study was to reveal the molecular background of HMB action on equine skeletal muscle by investigating the transcriptomic profile changes induced by HMB in equine satellite cells in vitro...
October 2016: British Journal of Nutrition
James M Elliott, Sudarshan Dayanidhi, Charles Hazle, Mark A Hoggarth, Jacob McPherson, Cheryl L Sparks, Kenneth A Weber
Synopsis It is generally accepted that up to 50% of those with a whiplash injury following a motor vehicle collision will fail to fully recover. Twenty-five percent of these patients will demonstrate a markedly complex clinical picture that includes severe pain-related disability, sensory and motor disturbances, and psychological distress. A number of psychosocial factors have shown prognostic value for recovery following whiplash from a motor vehicle collision. To date, no management approach (eg, physical therapies, education, psychological interventions, or interdisciplinary strategies) for acute whiplash has positively influenced recovery rates...
October 2016: Journal of Orthopaedic and Sports Physical Therapy
Giacomo Zanon, Franco Combi, Alberto Combi, Loris Perticarini, Luigi Sammarchi, Francesco Benazzo
PURPOSE: muscle injuries have a high incidence in professional football and are responsible for the largest number of days lost from competition. Several in vitro studies have confirmed the positive role of platelet-rich plasma (PRP) in accelerating recovery and in promoting muscle regeneration, and not fibrosis, in the healing process. This study examines the results of intralesional administration of PRP in the treatment of primary hamstring injuries sustained by players belonging to a major league football club...
January 2016: Joints
Shelby E Florida, Keith W VanDusen, Vasudevan D Mahalingam, Aleesa J Schlientz, Edward M Wojtys, Deneen M Wellik, Lisa M Larkin
Anterior cruciate ligament (ACL) ruptures rank among the most prevalent and costly sports-related injuries. Current tendon grafts used for ACL reconstruction are limited by suboptimal biomechanical properties. We have addressed these issues by engineering multiphasic bone-ligament-bone (BLB) constructs that develop structural and mechanical properties similar to native ACL. The purpose of this study was to examine the acute remodeling process that occurs as the BLB grafts advance toward the adult ligament phenotype in vivo...
November 2016: Connective Tissue Research
Mohammad Keilani, Timothy Hasenöhrl, Immanuel Gartner, Christoph Krall, Johannes Fürnhammer, Fadime Cenik, Richard Crevenna
BACKGROUND: The present study aims to describe knowledge about and usage of mental techniques to prepare before competitions and after sport-associated injuries (SAIs) by professional athletes (team sports) in Austria. METHODS: In this cross-sectional study, 191 professional athletes (basketball, football, hockey, ice hockey, and volleyball teams, m:f = 142:49, 24 ± 5, 18-39 years) filled in a questionnaire assessing socio-demographic data, duration/frequency of sport practice, rate and severity of SAIs...
May 2016: Wiener Klinische Wochenschrift
M Cianforlini, M Mattioli-Belmonte, S Manzotti, E Chiurazzi, M Piani, F Orlando, M Provinciali, A Gigante
Skeletal muscle injuries are common causes of severe long-term pain and physical disability, accounting for up to 55% of all sports injuries. The phases of the healing processes after direct or indirect muscle injury are complex but clearly defined and include well-coordinated steps: degeneration, inflammation, regeneration, and fibrosis. Despite this frequent occurrence and the presence of a body of data on the pathophysiology of muscle injuries, none of the current treatment strategies have shown to be really effective in strictly controlled trials...
October 2015: Journal of Biological Regulators and Homeostatic Agents
Dong-Sheng Huo, Ming Zhang, Zhi-Ping Cai, Chao-Xuan Dong, He Wang, Zhan-Jun Yang
Sciatic nerve injury is commonly seen in clinical practice predominantly associated with trauma or sports injuries. Recent studies indicated that ginsenoside Rg1 (Gs Rg1), extracted from Chinese herbs, was found to promote regeneration of injured rat sciatic nerve and that nerve growth factor (NGF) may be involved in this process. The aim of this study was to examine the role that NGF may play in ginsenoside Rg1-induced regeneration of rat sciatic nerve following injury. Animals following surgical right sciatic nerve injury were subsequently administered intraperitoneally either saline (sham control) or different doses of 2, 4, 8, or 12 mg/kg daily GsRg1 for 2 to 8 wk...
2015: Journal of Toxicology and Environmental Health. Part A
Bénédicte Chazaud
Increase in the practice of sport by more and more numerous people in the Western countries is associated with an increase in muscle injuries, and in demand for improving muscle function and acceleration of muscle recovery after damage. Most of the treatments used target inflammation. Indeed, several lines of experimental evidence in animal models that are supported by human studies identify inflammatory cells, and particularly macrophages, as essential players in skeletal muscle regeneration. Macrophages act not only through their immune functions, but also control myogenesis and extracellular matrix remodeling by directly acting on myogenic precursors and fibro-adipogenic precursors...
February 2016: Immunology and Cell Biology
Andrew Murray, Marco Cardinale
Recovery and regeneration modalities have been developed empirically over the years to help and support training programmes aimed at maximizing athletic performance. Professional athletes undergo numerous training sessions, characterized by differing modalities of varying volumes and intensities, with the aim of physiological adaptation leading to improved performance. Scientific support to athletes focuses on improving the chances of a training programme producing the largest adaptive response. In competition it is mainly targeted at maximizing the chances of optimal performance and recovery when high performance levels are required repeatedly in quick succession (e...
2015: Extreme Physiology & Medicine
Giovanni Zaccherotti, Maristella Olmastroni
Twenty consecutive, chronic and isolated anterior cruciate ligament (ACL) lesions that underwent reconstruction with quadrupled semitendinosus (ST) and gracilis (G) were prospectively examined to compare tendon regeneration and muscle strength recovery. Twenty consecutive axial nuclear magnetic resonance (NMR) scans were done after 1 month, 6 months and 2 years from surgery. A CybexII was used to evaluate concentric strength deficits both in flexion and in internal tibia rotation at 6 months and 2 years. At 2 years, an NMR signal comparable to the contralateral was present in 14 (70%) cases and absent in 6 (30%)...
2015: Journal of Sports Sciences
Bruno M Andrade, Marcelo R Baldanza, Karla C Ribeiro, Anderson Porto, Ramon Peçanha, Fabio S A Fortes, Gisele Zapata-Sudo, Antonio C Campos-de-Carvalho, Regina C S Goldenberg, João Pedro Werneck-de-Castro
Skeletal muscle injury is the most common problem in orthopedic and sports medicine, and severe injury leads to fibrosis and muscle dysfunction. Conventional treatment for successive muscle injury is currently controversial, although new therapies, like cell therapy, seem to be promise. We developed a model of successive injuries in rat to evaluate the therapeutic potential of bone marrow mesenchymal cells (BMMC) injected directly into the injured muscle. Functional and histological assays were performed 14 and 28 days after the injury protocol by isometric tension recording and picrosirius/Hematoxilin & Eosin staining, respectively...
2015: PloS One
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