Share to: share facebook share twitter share wa share telegram print page

Pulled hamstring

Pulled hamstring
Two images of the same strain. One of the pictures was shot through a mirror.

Straining of the hamstring, also known as a pulled hamstring, is defined as an excessive stretch or tear of muscle fibers and related tissues. Hamstring injuries are common in athletes participating in many sports. Track and field athletes are particularly at risk, as hamstring injuries have been estimated to make up 29% of all injuries in sprinters.[1] Hamstring injuries can also come with a hip injury from sprinting. Symptoms for a hip injury are pain, aching and discomfort while running or any physical exercise.

The biceps femoris long head is at the most risk for injury, possibly due to its reduced moment of knee and hip flexion as compared to the medial hamstrings.[2]

Causes of hamstring strain

The muscle group is prone to injuries due to the explosive nature of movement in sports and thus causing overload and overstretching of the hamstring musculature.

The other causes may be:

  • Previous injury
  • Poor muscle strength
  • Poor flexibility
  • Inadequate warm-up
  • Fatigue
  • Imbalance
  • Overuse

This condition is most commonly seen in:

  • Athletes involved in football, baseball, American football, rugby
  • Dancers and water skiers
  • Sports involving cross-country skiing, downhill skiing, judo, cricket, and bull riding

Diagnosis

Grades

Pulled hamstring

Grade 1

Sensation of cramp or tightness and a slight feeling of pain when the muscles are stretched or contracted.[citation needed]

Grade 2

With a grade two hamstring strain there is immediate pain which is more severe than the pain of a grade one injury. It is confirmed by pain on stretch, swelling and contraction of the muscle.

Grade 3

Bruising due to strained hamstring; horizontal lines show where bandage was.

A grade three hamstring strain is a severe injury. There is an immediate burning or stabbing pain and the individual is unable to walk without pain. The muscle is completely torn and there may be a large lump of muscle tissue above a depression where the tear is.

After a few days with grade two and three injuries, a large bruise may appear below the injury site caused by the bleeding within the tissues.

Treatment

Recommended treatment for this injury consists of the RICE protocol — rest, ice, compression and elevation.[3] The RICE method is primarily used to reduce bleeding and damage within the muscle tissue. Lower grade strains can easily become worse if the hamstring is not rested properly. Complete ruptures require surgical repair and rehabilitation.

Initial treatment of the injury, regardless of the severity of the strain, is the same. Within the first five days, the hamstring is rested in an elevated position with an ice pack applied for twenty minutes every two hours. A compression bandage is applied to limit bleeding and swelling in the tissues. After five days of rest, active rehabilitation begins.

Epidemiology

An academic study found that the most common and prevalent musculoskeletal injury in the world is a hamstring strain.[4] The study further explains that hamstring strains represented 15% of all injuries per club per season also had a 34% chance of recurrence.[4] Another study showed that a previous hamstring injury is one of the most cited risks for future injury, with as many as one-third of active individuals experiencing a re-injury within 2 weeks of returning to activity.[5] A meta-analysis article showed evidence that a history of hamstring injury and being of older age were associated with increased risk of hamstring strains.[6] One study found that men and master athletes (athletes older than forty) were at an increased risk of hamstring strains compared with women and younger athletes.[7] Women were approximately 3 times more likely to develop hamstring strain than males with the majority of these being non-sporting scenarios.[8] Similarly the average age of non-sporting hamstring strains are from the ages of 40–60.[8] Many of these non-sporting injuries are sustained during road traffic accidents, slipping, and falling.[8] These results also show that hamstring strains account for 50% of muscle injuries received by sprinters and are the most common injury in hurdling.[9] One explanation is that older active individuals may be at greater risk due to lower levels of eccentric knee flexor strength compared with their younger counterparts.[7] However, it is unclear whether flexibility serves as a risk factor; this topic should be researched in the future to further understand the relationship between flexibility and risk of injury.[10] Muscle weakness has also been an implication as a predisposing factor for both primary and recurring hamstring strain injuries.[11] Over a 10-year study more than 51.3% of hamstring strains occurred during the preseason of athletics.[11] In another study, that analyzed 25 NCAA sports over four years, it was clearly shown that hamstring strain rates are higher in the preseason.[10] The factors that are being implicated in this trend are the relative deterioration and muscle weakness that occur during the off-season.[9]

The hamstrings undergo a complex dynamic process during gait, making it unsurprising that they are frequently injured. They must first contract concentrically during the end of the stance phase in order to bend the knee and allow the foot (along with dorsiflexion at the ankle) to clear the ground. At the end of the swing phase, the hamstrings must eccentrically contract while applying a braking moment to knee extension, then immediately change functions to again concentrically contract and produce hip extension. Studies have shown that "the hamstring group reaches peak elongation and acts eccentrically at the hip and knee during the late swing phases of running"[12] and that "the hamstrings are most active and develop the greatest torques at the hip and knee during the late swing through midstance phase of running."[12] Thus, the hamstrings reach their maximum length while attempting to forcefully contract eccentrically and switch functions to immediately produce a concentric contraction, which makes the terminal part of swing phase the most vulnerable for injury.

There have been many other proposed predisposing factors to injury. These include muscle weakness, muscle imbalance, poor flexibility, fatigue, inadequate warm up, poor neuromuscular control, and poor running technique.[12] One of the few predisposing factors that most researchers agree upon however is previous hamstring injury. Brokett et al. (2004) [13] stated that "the athletes most at risk of a hamstring strain are those with a previous history of such injury" and noted that 34% of the hamstring injuries were recurrences." Cameron et al. also found that 34% of injuries recur in the same season. Arnason et al.[1] generalized these numbers, saying that previous injury was in itself an independent risk factor for re-injury.

When examining sprint related activities, strengthening programs should target exercises associated with horizontal force production and high levels of hamstring activity. [14] When analyzing correlations between exercises like the Upright-hip-extension and the Nordic hamstring curl without hip flexion, a demonstration of no more than an average of 60% hamstring activation was measured. This is less stress than is seen in maximal sprinting. Sprint related activities like the A-Switch, A-Skip, Bounding, dribbles, etc., progressed to maximal sprinting display better physical preparation and specificity. This is conjunction with isometric variations like the hamstring iso-hold, iso-switch, iso-catch, along with the Upright-hip-extension and Nordic hamstring without hip flexion compliment as strength exercises. Typical return to play protocols for hamstring strain for sprint demands must include the sprint related activities above progressing to qualities like acceleration, late acceleration, maximum velocity, and speed endurance for effective rehabilitation and preparation for sport demands. Thus exercises like the Upright-Hip-Extension and Nordic Hamstring Curl without Hip Flexion in isolation will not adequately prepare for sport related activities.

References

  1. ^ a b Arnason A, Andersen TE, Holme I, Engebretsen L, Bahr R (2008). "Prevention of hamstring strains in elite soccer: an intervention study". Scand J Med Sci Sports. 18 (1): 40–8. doi:10.1111/j.1600-0838.2006.00634.x. PMID 17355322. S2CID 23545542.
  2. ^ Carlson C (2008). "The natural history and management of hamstring injuries". Curr Rev Musculoskelet Med. 1 (2): 120–3. doi:10.1007/s12178-007-9018-8. PMC 2684206. PMID 19468884.
  3. ^ "Marshall University Orthopaedics". Archived from the original on 2008-02-03. Retrieved 2008-01-08.
  4. ^ a b Orchard, J., & Seward, H. (2002, February). Epidemiology of injuries in the Australian Football League, seasons 1997-2000. British Journal of Sports Medicine, 36(1), 39-45.
  5. ^ Sherry, M. A., Johnston, T. S., & Heiderscheit, B. C. (2015, April). Rehabilitation of Acute Hamstring Strain Injuries. Clinics in Sports Medicine, 34(2), 263-284.
  6. ^ Freckleton, G., & Pizzari, T. (2013, April). Risk factors for hamstring muscle strain injury in sport: a systematic review and meta-analysis. British Journal of Sports Medicine, 47(6), 351-358.
  7. ^ a b Opar, D. A., Drezner, J., Williams, M., Webner, D., Sennett, B., Kapur, R., Cronholm, P.F.(2014). Acute hamstring strain injury in track-and-field athletes: A 3-year observational study at the Penn Relay Carnival. Scandinavian Journal of Medicine & Science in Sports, 254-259.
  8. ^ a b c Kuske, Barbara; Hamilton, David F.; Pattle, Sam B.; Simpson, A. Hamish R. W. (2016-05-04). "Patterns of Hamstring Muscle Tears in the General Population: A Systematic Review". PLOS ONE. 11 (5): e0152855. Bibcode:2016PLoSO..1152855K. doi:10.1371/journal.pone.0152855. ISSN 1932-6203. PMC 4856270. PMID 27144648.
  9. ^ a b Ahmad, C.S., Redler, L.H., Ciccotti, M.G., Maffulli, N., Longo, U.G., & Bradley, J. (2013, December). Evaluation and Management of Hamstring Injuries. The American Journal of Sports Medicine, 41(12), 2933-2947.
  10. ^ a b Dalton, S. L., Kerr, Z.Y., & Dompier, T.P.(2015). Epidemiology of Hamstring Strains in 25 NCAA Sports in the 2009-2010 to 2013-2014 Academic Years. American Journal of Sports Medicine, 43(11), 2671-2679.
  11. ^ a b Kuske B, Hamilton DF, Pattle SB, Simpson AHRW (2016) Patterns of Hamstring Muscle Tears in the General Population: A Systematic Review. PLoS ONE 11(5):e0152855.doi:10.1371/journal.pone.0152855
  12. ^ a b c Cameron, M.; Adams, R.; Maher, C. (2003). "Motor control and strength as predictors of hamstring injury in elite players of Australian football" (PDF). Physical Therapy in Sport. 4 (4): 159–166. doi:10.1016/s1466-853x(03)00053-1. Archived from the original (PDF) on 2014-03-19. Retrieved 2014-03-18.
  13. ^ Brockett CL, Morgan DL, Proske U (2004). "Predicting hamstring strain injury in elite athletes". Med Sci Sports Exerc. 36 (3): 379–87. doi:10.1249/01.mss.0000117165.75832.05. PMID 15076778.
  14. ^ Prince, Caroline; Morin, Jean-Benoît; Mendiguchia, Jurdan; Lahti, Johan; Guex, Kenny; Edouard, Pascal; Samozino, Pierre (2020). "Sprint Specificity of Isolated Hamstring-Strengthening Exercises in Terms of Muscle Activity and Force Production". Frontiers in Sports and Active Living. 2: 609636. doi:10.3389/fspor.2020.609636. ISSN 2624-9367. PMC 7859261. PMID 33554110.

Read other articles:

الجدول التالي يتضمن قائمة الدول والأقاليم حساب المعيار الدولي أيزو 3166-1 الصادر عن المنظمة الدولية للمعايير بقوائمه الثلاث: أيزو 3166-1 حرفي 2: تمنح هذه المجموعة رموز مكونة من حرفين، وهي مجموعة الرموز الأكثر انتشاراً من المجموعات الثلاث وتستخدم بشكل بارز في الإنترنت والنطاق الأ…

Air Danau Kassi Kebo Pemandangan Danau Kassi Kebo Informasi Lokasi Dusun Bantimurung, Desa Jenetaesa, Kecamatan Simbang, Kabupaten Maros, Sulawesi Selatan. Negara  Indonesia Koordinat 5°00′39″S 119°37′08″E / 5.0107813°S 119.6189522°E / -5.0107813; 119.6189522Koordinat: 5°00′39″S 119°37′08″E / 5.0107813°S 119.6189522°E / -5.0107813; 119.6189522 Pengelola Dinas Kebudayaan dan Pariwisata Kabupaten Maros danBalai Taman Nasi…

Town in Blagoevgrad, BulgariaСимитли СимитлиTownСимитлиLocation of SimitliCoordinates: 41°53′N 23°7′E / 41.883°N 23.117°E / 41.883; 23.117CountryBulgariaProvinces(Oblast)BlagoevgradGovernment • MayorApostol ApostolovElevation323 m (1,060 ft)Population (2005-09-13) • Total7,454Time zoneUTC+2 (EET) • Summer (DST)UTC+3 (EEST)Postal Code2730Area code0748Vehicle registrationE Simitli (Bulgarian: С…

XV Bolivarian GamesHost cityArmenia, Quindío Pereira, RisaraldaCountry ColombiaMottoLa fuerza de una región (The power of a region)Nations6Athletes2026Events28 sportsOpeningAugust 12, 2005 (2005-08-12)ClosingAugust 21, 2005 (2005-08-21)Opened byÁlvaro UribeAthlete's OathÓscar FigueroaTorch lighterRubén Darío GómezMain venueEstadio Centenario (Armenia) Estadio Hernán Ramírez Villegas (Pereira)← 2001 Ambato2009 Sucre → The XV Boliva…

Voce principale: Calcio Padova. Associazione Calcio PadovaStagione 1922-1923 Sport calcio Squadra Padova Allenatore Herbert Burgess Presidente Michele Maluta Prima Divisione1º posto nel girone C, 3º posto nel girone finale. Miglior marcatoreCampionato: A. Busini (10) StadioStadium 1921-1922 1923-1924 Si invita a seguire il modello di voce Questa pagina raccoglie le informazioni riguardanti l'Associazione Calcio Padova nelle competizioni ufficiali della stagione 1922-1923. Indice 1 Stagion…

Questa voce sull'argomento calciatori tedeschi è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Fabian Klos Nazionalità  Germania Altezza 194 cm Calcio Ruolo Attaccante Squadra  Arminia Bielefeld Carriera Squadre di club1 2007-2009 MTV Gifhorn58 (49)2009-2011 Wolfsburg II65 (22)2011- Arminia Bielefeld294 (132)[1] 1 I due numeri indicano le presenze e le reti segnate, per le sole…

Cet article est une ébauche concernant la Belgique et le Concours Eurovision de la chanson. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Belgiqueau Concours Eurovision 2007 Le groupe KMG's représentant la Belgique avec la chanson Love Power lors de la demi-finale du Concours Eurovision de la chanson 2007 à Helsinki. Données clés Pays  Belgique Chanson Love Power Interprète KMG's Compositeur Paul Curtiz…

Soviet space station programme For the aircraft engine manufacturer, see Salyut Machine-Building Association. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Salyut programme – news · newspapers · books · scholar · JSTOR (August 2012) (Learn how and when to remove this template message) Salyut programmeСалю…

British railway company (1923–1947) This article is about the British railway company that existed before the creation of British Railways in 1948. For the former West Midlands Franchise operator, see London Midland. London, Midland and Scottish RailwayCrest of the LMS on a railway carriageOverviewHeadquartersEuston House, LondonReporting markLMSLocaleEngland; Northern Ireland; Scotland; WalesDates of operation1 January 1923[1]–1 January 1948PredecessorLondon and North Western Ra…

Questa voce sull'argomento cestisti statunitensi è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Kenny Frease Nazionalità  Stati Uniti Altezza 213 cm Peso 128 kg Pallacanestro Ruolo Centro Termine carriera 2019 CarrieraGiovanili Perry High School2008-2012 Xavier MusketeersSquadre di club 2012-2013 Tigers Tubinga34 (375)2013-2014 Artland Dragons32 (226)2014-2015 Yeşilgiresun16 (22…

2013 film by Anurag Kashyap UglyTheatrical release posterDirected byAnurag KashyapWritten byAnurag KashyapProduced byArun RangachariVivek RangachariAnurag KashyapMadhu MantenaVikas BahlVikramaditya MotwaneStarring Rahul Bhat Ronit Roy Girish Kulkarni Siddhanth Kapoor Tejaswini Kolhapure Vineet Kumar Singh Surveen Chawla CinematographyNikos AndritsakisEdited byAarti BajajMusic bySongs:G. V. Prakash KumarScore:Brian McOmberProductioncompanyPhantom FilmsDistributed byDAR Motion PicturesMagic Cloud …

У этого термина существуют и другие значения, см. Тур. Запрос «Bos taurus primigenius» перенаправляется сюда; см. также другие значения. † Тур Скелет тура Научная классификация Домен:ЭукариотыЦарство:ЖивотныеПодцарство:ЭуметазоиБез ранга:Двусторонне-симметричныеБез ранга:Вт…

† Стеллерова корова Муляж стеллеровой коровы в Лондонском музее естествознания Научная классификация Домен:ЭукариотыЦарство:ЖивотныеПодцарство:ЭуметазоиБез ранга:Двусторонне-симметричныеБез ранга:ВторичноротыеТип:ХордовыеПодтип:ПозвоночныеИнфратип:Челюстноро…

English composer For other people named David Lowe, see David Lowe (disambiguation). This article may rely excessively on sources too closely associated with the subject, potentially preventing the article from being verifiable and neutral. Please help improve it by replacing them with more appropriate citations to reliable, independent, third-party sources. (May 2009) (Learn how and when to remove this message) David LoweLowe in 2006Background informationBirth nameDavid Harry LoweBorn (1959-04-…

Federico Baistrocchi Sottosegretario di Stato al Ministero della GuerraDurata mandato22 luglio 1933 –7 ottobre 1936 PredecessoreAngelo Manaresi SuccessoreAlberto Pariani LegislaturaXXIX Incarichi parlamentari XXVIII LegislaturaCommissione per l'esame dei bilanci e dei rendiconti consuntivi nella giunta generale del bilancio (2 maggio 1929-29 luglio 1933) Deputato del Regno d'ItaliaDurata mandato24-5-1924 –2-3-1939 LegislaturaXXVII, XXVIII, XXIX Colleg…

Військово-музичне управління Збройних сил України Тип військове формуванняЗасновано 1992Країна  Україна Емблема управління Військово-музичне управління Збройних сил України — структурний підрозділ Генерального штабу Збройних сил України призначений для плануван…

Asim Vokshi Asim Vokshi (1909–1937) was an Albanian Kosovar from Gjakova,[1] Kosovo Vilayet, Ottoman Empire, and studied at a military academy in Italy. He served as a staff officer in the Garibaldi Battalion of the XII International Brigade during the Spanish Civil War.[1] He is buried in the Cemetery of the Martyrs, Shkodër, Albania.[1] References ^ a b c Asim Vokshi. Find a Grave. Retrieved 5 January 2021. Further reading Prenk Uli, Qemal Sakajeva (1982), Asim V…

1st season of Federation Cup Football league seasonTurkish Federation CupSeason1956–57ChampionsBeşiktaş1st titleEuropean CupBeşiktaşMatches played53Goals scored160 (3.02 per match)Top goalscorerNazmi Bilge (8)Biggest home winKültürspor 8–0 EgesporBiggest away winAnkara Demirspor 0–7 Galatasaray1957–58 → The 1956–57 Turkish Federation Cup was the first professional nationwide football competition in Turkey. The tournament was organized by the Turkish Football Federation (TF…

Not to be confused with Annapolis, Maryland. This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (March 2013) (Learn how and when to remove this message) Municipality in Central-West, BrazilAnápolis, GoiásMunicipalityMunicípio de AnápolisMunicipality of AnápolisView of Ipiranga Environmental Park (Parque Estacionamento Ipiranga) FlagCoat of armsNickname: Ma…

United Frankish kingdom between the 6th and 9th century This article is about the geographical and political development of the lands of the Franks. For the Frankish people and society, see Franks. For other uses, see Francia (disambiguation). Not to be confused with France. This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (May 2016) (Learn how and when to remove …

Kembali kehalaman sebelumnya