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Hamstring Strain Injuries: Lessons from Personal Experience and the Latest Research

Hamstring Strain Injuries: Lessons from Personal Experience and the Latest Research

by | May 29, 2023 | Gym and Strength, Return to Sport, Running Injuries

Recently, in an effort to keep the ballooning effects of the all-you-can-eat buffet at bay during my Cricket Australia Indian tour, I ramped up my high-intensity running load. Things were going splendidly — four days of high-intensity running under my belt — until day five, when 90% of the way through a very intense interval session, I tore my hamstring.

I felt the tell-tale sensation so many of my patients describe: a sharp tearing and retraction sensation in my outer thigh while sprinting. I had to pull up immediately and iced the injury straight away. You’ll be happy to hear that I’ve since fully recovered. No longer ‘gun shy’ at my top speeds (which, admittedly, are not that fast!), my strength has vastly improved, and I’m back running at full capacity.

Having treated countless hamstring injuries through my long involvement in recreational, semi-elite, and elite sport — especially with Cricket Australia teams and the Aspley Hornets NEAFL squad — this experience gave me even deeper appreciation for how tricky these injuries can be. Hamstring strains are one of the most common injuries in running athletes, responsible for significant downtime and lost performance. Hamstring injuries have remained the most prevalent injury in professional AFL for the past 21 consecutive seasons (Orchard et al., 2013), with the average 2012 injury costing clubs over $40,000 per player!

Understanding Hamstring Injury Mechanisms

Most hamstring tears occur during the late-swing phase of running, where the hamstring undergoes rapid lengthening while producing high forces (Danielsson et al., 2020). Key risk factors include:

  • High eccentric loading demands.

  • Poor neuromuscular control.

  • Muscle imbalances (particularly hamstrings vs quadriceps).

  • Fatigue — as evidenced by my own injury, occurring late in a demanding session!

Importantly, the long head of biceps femoris is the most commonly injured muscle, partly due to its higher proportion of fast-twitch fibers and its anatomical position under stretch during running (Martin et al., 2022).

Fatigue, poor trunk/pelvic control, and sudden spikes in high-speed running are emerging as significant contributors to hamstring strain risk, particularly in field and court sports (Martin et al., 2022).

Preventing Hamstring Injuries

The good news is, hamstring injuries can often be prevented with smart training. Strengthening the hamstrings through eccentric exercises like Nordic hamstring curls and single-leg Romanian deadlifts has been shown to reduce injury rates significantly (Al Attar et al., 2017; Martin et al., 2022).

Effective prevention programs should also include:

  • Agility and trunk stabilization exercises — not just strength work (Martin et al., 2022).

  • Warm-up routines with dynamic stretching and sport-specific drills.

  • Monitoring high-speed running loads to avoid sudden spikes in intensity.

Addressing muscle imbalances is key too. Maintaining a healthy strength ratio between the quadriceps and hamstrings — and ensuring good trunk and gluteal control — promotes optimal biomechanics and reduces injury risk (Martin et al., 2022).

Recovering Well After a Hamstring Injury

A proper recovery should include:

  • Early management: Controlling swelling and pain with ice and appropriate activity modification.

  • Progressive eccentric strengthening: Integrated carefully to build resilience.

  • Functional rehabilitation: Sprinting drills, agility work, and sport-specific movements are crucial before returning to full play (Martin et al., 2022).

Interestingly, studies show athletes who follow programs that include eccentric training and trunk stability work have lower reinjury rates than those who just focus on basic strength and stretching (de Visser et al., 2012; Martin et al., 2022).

Return-to-play decisions should be made carefully. Factors like strength symmetry, absence of pain, and readiness for high-speed running should all be considered to reduce the risk of reinjury, which can be as high as 30% otherwise (Martin et al., 2022).

Final Thoughts

Even as a physio, my personal hamstring tear was a stark reminder that fatigue, progressive loading, and structured rehab are vital ingredients for both prevention and recovery. Whether you’re a weekend warrior, a professional cricketer, or just trying to beat the buffet, hamstring health is crucial.

If you’d like help strengthening your hamstrings, managing an existing injury, or optimising your running and performance, feel free to reach out. I (and my hamstrings) would be happy to help!

Till next time, Praxis what you Preach!

Backed by evidence. Trusted by athletes. Here for every body.

References

  • Al Attar, W.S.A., et al. (2017). The effectiveness of injury prevention programs in reducing the incidence of hamstring injuries in soccer players: a systematic review and meta-analysis. Journal of Physiotherapy, 63(1), 11–17.

  • Danielsson, B., et al. (2020). Mechanisms of hamstring strain injury: current concepts. Sports Medicine, 50(4), 669–682.

  • Martin, R.L., et al. (2022). Hamstring strain injury in athletes: Clinical Practice Guidelines. Journal of Orthopaedic & Sports Physical Therapy, 52(3), CPG1–CPG44.

  • Orchard, J.W., et al. (2013). AFL Injury Report 2012.

FACT OR FICTION FRIDAY || I’m too old to lift weights!

FACT OR FICTION FRIDAY || I’m too old to lift weights!

by | Dec 13, 2019 | Gym and Strength, Osteoarthritis

Answer: FICTION 🙊 Progressive strength training in the elderly (>60 years) is efficient, even with higher intensities, to improve bone health, pack on muscle and retain function. And not surprisingly, side effects are rare! Strength training increases muscle strength by increasing muscle mass, and by improving the recruitment of motor units, and increasing their firing rate. This is no different between younger and older gym goers.
Mid Potion Achilles Tendinopathy Location

It all comes down to how you train! Training with higher loads generally provokes marginally larger gains in muscle size. Intensity corresponding above 85% of the individual maximum voluntary strength can also illicit improved rate of force development compared to 60-80%. This is imperative for reducing frailty as we age.

It is now recommended that healthy old people should train 3 or 4 times weekly for the best results; persons with poor performance at the outset can achieve improvement even with less frequent training.

So if you are using age as an excuse – STOP! Don’t let your age be a barrier to trying new things or feeling strong. We are here to help with supervised sessions, a great network of PTs as well as our clinical reformer pilates classes which are a great way to start (or return) to strength training!

To book for a clinical pilates 1:1 session or to chat with a physio about how strength training can help you, head to our booking page or give us a call on (07) 3102 3337

Team Praxis

PREVENT | PREPARE | PERFORM

References:

Mayer, F., Scharhag-Rosenberger, F., Carlsohn, A., Cassel, M., Müller, S., & Scharhag, J. (2011). The intensity and effects of strength training in the elderly. Deutsches Ärzteblatt International, 108(21), 359.

Lopez, P., Pinto, R. S., Radaelli, R., Rech, A., Grazioli, R., Izquierdo, M., & Cadore, E. L. (2018). Benefits of resistance training in physically frail elderly: a systematic review. Aging clinical and experimental research, 30(8), 889-899.

Sporting Injuries

Sporting Injuries

by | Dec 3, 2019 | Pain, Return to Sport, Sports Injury

Are you a weekend warrior who is plagued by injury or an aspiring athlete trying to find that extra 1% or somewhere in between? We know how frustrating it can sitting on the side lines and not being able to be involved in the things that make you happy. All the Praxis team have (or still do) play sport of some description and understand the anguish that goes hand in hand with injuries. That is why we do what we do!

 

Praxis has an expert team who have been fortunate to travel the country and even the world with various sporting teams. Whether it is Stephen with Cricket Australia teams, Cam with the ICONZ Rugby, Zac with Netball or Emma with AFL Praxis has you covered.
Mid Potion Achilles Tendinopathy Location

We separate ourselves from other therapist because we know that specific, personalised and evidence based physiotherapy is the most effective and efficient method to getting you back to what you love doing quicker and better. Combine that with our years of experience in treating all athletes from the elite to the weekend warrior, and there is no sport we can’t help with!

In summary, we believe that specific, personalised and evidence based physiotherapy is the most effective and efficient method in

If you are looking to Prevent future dysfunction, Prepare for your activity and Perform at your best, the Praxis Team has you covered and will get you achieving your goals sooner! See one of expert team members today by giving us a call on (07) 3102 3337  emailing admin@praxisphysio.com.au or booking online.

Team Praxis

PREVENT | PREPARE | PERFORM

Pilates: Reforming our back pain rehabilitation (Part 1 of 3)

Pilates: Reforming our back pain rehabilitation (Part 1 of 3)

by | Jun 3, 2019 | Lower Back, Pain, Reformer Pilates

With our 30 day pilates challenge starting today, we thought we would take a look at why we love pilates so much for our patients, and what some of the benefits are. Part 1 looks at how pilates affect those with chronic lower back pain. Part 2 looks at the difference between mat and reformer pilates and part 3 looks at how often is required to see the benefit of pilates.

SUMMARY:

  • Back pain is extremely common, multifactorial, and often reoccurs
  • Strengthening interventions appear better for long term suffers of lower back pain
  • Pilates has been shown to improve muscular strength and endurance of key pelvic and postural musculature associated with lower back pain
  • Specifically, pilates promotes the restoration of the function of muscles involved in lumbopelvic stabilisation, that is, transversus abdominis, multifidus, diaphragm and pelvic floor muscles
  • As little as 2 sessions per week for 6 weeks has been shown to see improvements in pain and function for those with longstanding lower back pain, even after stopping pilates

Chronic low back pain (CLBP) is one of the commonest musculoskeletal problems in modern society (Anderson 1999) and is a highly prevalent in both the sporting and general public. CLBP is experienced by 70%–80% of adults at some time in their lives (Crombez et al 1999) and as such, the costs associated with LBP and related disability are enormous, causing a major economic burden for patients, governments and health insurance companies (Dagenais 2008).

Lower back pain has been one of the most extensively studied musculoskeletal conditions as a result of the prevalence and debilitation nature. Its management comprises a range of different intervention strategies including surgery, drug therapy and non-medical intervention like rehabilitation (Paolucci et al 2018). Within Physiotherapy, exercise therapy is probably the most commonly used intervention for the treatment of patients with chronic non-specific LBP due to its plausible biological rationale and low cost.

Whilst general conditioning programs to train strength and endurance of the spine musculature have been shown to reduce pain intensity and disability (Rainville et al 2004), the popularity of pilates (both mat and reformer) has helped provide an accessible and supervised form of therapeutic exercise.

EVIDENCE FOR PILATES

The Pilates method, using functional exercises aims to improve muscular strength and endurance. Specifically, the pilates method have promotes the restoration of the function of muscles involved in lumbopelvic stabilisation, that is, transversus abdominis, multifidus, diaphragm and pelvic floor muscles. Using the principles of progressive overload, your body adapts to the incremental loading week after week and consequently results important postural control improvement. In 2009, Curnow and colleagues showed that the Pilates method improves load transfer through the pelvis, something that intuitively helps those with CLBP.

However, a systematic review (Patti et al 2015) reported evidence that Pilates method-based exercises are more effective than no treatment or minimal physical exercise interventions in the management of chronic nonspecific LBP. Further, they pointed out that the effects of the Pilates method are only proven for patients with chronic nonspecific LBP in the short term.

A recent study by Natour and colleagues (2015) showed that the group of participants that were practicing Pilates method resulted statistically better compared with the a non exercising group who only used inflammatory medication. Those who were in the pilates group used less pain medication at 45, 90 (conclusion of the Pilates method), and 180 days, 90 days after the conclusion of the exercise program.

In conclusion, Pilates as an exercise choice is more effective than minimal physical exercise or drug based interventions in reducing pain and disability in the short-term period. There is agreement that exercise “helps” in the treatment of chronic pain, but it is still not clear exactly which factors or particular kind of exercises may be responsible of such improvements (Natour et al 2015; Patti et al 2015). Praxis Physiotherapy has always been a strong proponent of movement and loading early in rehabilitation (more on this in later blogs!).

In the next instalment, we discuss the difference between mat and reformer pilates and perhaps find some more answers regarding which exercise regime reigns supreme!

Check out all our other reformer pilates services on our website

Until next time,

Prevent. Prepare. Perform.

References:

  1. Andersson GB. Epidemiological features of chronic low-back pain. Lancet. 1999;354(91789178):581–585.
  2. Crombez G, Vlaeyen JW, Heuts PH, Lysens R, Crombez G. Pain-related fear is more disabling than pain itself: evidence on the role of pain-related fear in chronic back pain disability. Pain. 1999;80(1-2):329–339.
  3. Dagenais DC, Caro J, Haldeman S. A systematic review of low back pain cost of illness studies in the United States and internationally. The Spine Journal 2008;8(1):8‐20.
  4. Paolucci, T., Attanasi, C., Cecchini, W., Marazzi, A., Capobianco, S. V., & Santilli, V. (2019). Chronic low back pain and postural rehabilitation exercise: a literature review. Journal of pain research, 12, 95.
  5. Rainville J, Hartigan C, Martinez E, Limke J, Jouve C, Finno M. Exercise as a treatment for chronic low back pain. Spine J. 2004;4:106-115
  6. Patti, A., Bianco, A., Paoli, A., Messina, G., Montalto, M. A., Bellafiore, M., … & Palma, A. (2015). Effects of Pilates exercise programs in people with chronic low back pain: a systematic review. Medicine, 94(4).
  7. Curnow, D., Cobbin, D., Wyndham, J., & Choy, S. B. (2009). Altered motor control, posture and the Pilates method of exercise prescription. Journal of bodywork and movement therapies, 13(1), 104-111.
  8. Natour, J., Cazotti, L. D. A., Ribeiro, L. H., Baptista, A. S., & Jones, A. (2015). Pilates improves pain, function and quality of life in patients with chronic low back pain: a randomized controlled trial. Clinical rehabilitation, 29(1), 59-68.
The Single Leg Squat

The Single Leg Squat

by | Dec 17, 2018 | Gym and Strength, Team Praxis

For those of you who have ever read a research article and thought it was a tough read, i’d like to let you in on a little secret. Doing the research is far worse! If only memes were a thing when I started my Masters of Applied Science thesis, I’d have changed my background to remind myself that conducting research was even drier than every dish an apprentice has cooked for Gordon Ramsey.

My mentor at the time, who was the manager of the sports science and sports medicine devision of Cricket Australia and later the head of the AIS human movements department, Dr Marc Portus, enlightened me with something quite profound. He said, “There are two outcomes from a thesis. Either you live it for the rest of you academic days or it sits on a bookshelf for years collecting dust.” Given I completed my thesis and went straight onto my graduate entry physiotherapy masters, it is fair to say i’m in the later camp. Quite a few years have passed now however, so I’d thought i’d dust off the cover and summarise my thesis for all of you playing at home!

So not to degrade my self entirely, I thought I found some pretty good stuff that has affected the way I assess and treat today. I haven’t shared it all today as it was more than 140 pages long and ‘ain’t nobody got time for that’. More importantly though, my thesis reminded me of the passion I have for lower limb biomechanics and that physiotherapy (as opposed to research) was always meant to be on the cards for me. My thesis, “The 3D Kinematics of the Single Leg Flat and Decline Squats” boiled down to looking at how the ankle position changed the joint angles single leg squat, how hip strength affected the squat as well as few other things that aren’t worth mentioning here.

BACKGROUND:

The single leg squat (SLS) replicates an athletic position commonly assumed in sport such as cutting (powerful change in direction while running made from one leg), jumping and balancing which all require the control of the trunk and pelvis on the weight bearing femur in all three planes of movement [1-5].

As such, the SLS is commonly used by clinicians as a functional measure of dynamic lumbo-pelvic stability [endif]–[6-8]. Abnormal movement within the SLS tend to be characterised by the commonly described “medial collapse” or “dynamic valgus”. Specifically, there is excessive femoral internal rotation, femoral adduction, knee valgus, tibial internal rotation and foot pronation of the weight-bearing limb with resultant excursion of the contralateral non weight bearing Ilium and excessive lateral flexion of the trunk [endif]–[3, 6-8].

The reason why this tends to be perceived as a big deal is that this position tends to be argued as a lack of lumbopelvic stability and results in increased loading of the knee. Moreover, pelvis weakness tends to be ascribed to the absence of stability ultimately resulting in a position in which many acute and overuse injuries of the lower limb may occur. These ailments include, ACL / MCL ruptures, patellofemoral pain syndrome (PFPS), illiotibial band friction syndrome (ITBFS) and shin splints to name a few. That is why the SLS appears to be a valuable rough screening tool in clinical practice.

MY FINDINGS:

As mentioned, I looked at how a decline board of 20 degrees changed the angles of the lower limb during the squat. I also looked at if any strength measures of the hip related to how someone squatted between conditions. Finally, I looked at if the decline board altered how someone was scored by experienced physiotherapist as a competent or not at the squat

JOINT ANGLES (KINETMATICS:)

A picture tells a thousand words so in the interests of brevity, the stick squat figure is essentially a summary of two years of work.

So what this means, when someone performs a SLS on a flat surface, relative to a decline surface they tend to have:

  • A more upright torso
  • More rotation of the pelvis toward the weigh bearing (WB) limb
  • Reduced flexion but more adduction and internal rotation of the thigh on the WB hip (pelvic close to femur)
  • Less flexion of the knee but the same position relative to the foot as you look from the front (known as frontal plane knee excursion) at the bottom of range
  • Reduced internal rotation of the shin
  • Reduced ankle flexion

Essentially, in a flat squat you tend to ‘corkscrew’ your pelvis and adopt the medial collapse position much more easily than in the decline squat position. This may because of ankle range of motion issues as well as the ability to adequately recruit pelvic musculature. Yep – two years to get that!

STRENGTH AND MOVEMENT:

My results demonstrated a tendency for the pelvis to remain increasingly level with greater hip abduction strength. However, the relationship between strength and the pelvis was observed in the decline condition but not the flat condition. This may be due to hip abduction was shown to be significantly less (more neutral) in the SLDS which seemingly promoted greater muscle activation and subsequent control of pelvis. The self selection of squat depth may have also been a critical factor in finding as those with weak hips may have squatted deep to adopt maladaptive positions. Previous research has indicated that the hip abductors and external rotators play an important role in lower extremity alignment as they assist in the maintenance of a level pelvis [9] and are capable in balancing a number of biomechanical forces in the body [10].

Interestingly, there were no significant relationships observed between hip abduction strength and knee valgus (knee falling in) for both squatting conditions. There was however a trend between hip abduction strength and knee valgus which supported previous research. It is keeping with the assumption that increased knee valgus might also be associated with reduced hip abduction and external rotation strength [11].

SUMMARY:

  • To maximise athletic function, particularly in sports such as soccer, netball and AFL, stability through the pelvis and hips, proximal lower limb, spine and abdominal structures is required [12].
  • The importance of pelvis stabilisation for lower extremity injury prevention [13] particularly the knee [14-17] has been well documented in the literature.
  • Adequate lumbopelvic-femur strength and muscle function may conceivably reduce exposure to other intrinsic risk factors such as inefficient force attenuation, unstable movement patterns and lower limb malalignments during activity [18, 19].
  • Ankle flexibility may also be a factor in lower limb physical resilience and injury prevention.
  • Support for the previous statements has been demonstrated in the relationships between hip strength measures and kinematics within selected results of my study.

There you have it. Two years of my life summarised to a few paragraphs. From a personal perspective, I took away from my research experience to be always questioning why we do things and see if there is someone out there who has answered the questions we seek. Finally, don’t overcook chicken – Ramsay doesn’t like it.

REFERENCES:

  1. Neely, F.G., Intrinsic risk factors for exercise-related lower limb injuries. Journal of Sports Medicine, 1998. 26(4): p. 253-263.
  2. Parkkari, J., U.M. Kujala, and K. Pekka, Is it possible to prevent sports injuries? Review of controlled clinical trials and recommendations for future work. Sports Medicine, 2001. 31(14): p. 985-995.
  3. Lysens, R.J., et al., The accident -prone and overuse-prone profiles of the young athlete. The American Journal of Sports Medicine, 1989. 17(5): p. 612-619.
  4. Egger, G., Sports injuries in Australia: causes, costs and prevention. A report to the national better health program., ed. C.f.H.P.a. Research. 1990, Sydney.
  5. Orchard, J.W. and C.F. Finch, Australia needs to follow New Zealand’s lead on sports injuries. The Medical Journal of Australia, 2002. 177: p. 38-39.
  6. Wu, G. and P.R. Cavanagh, ISB recommendations for standardization in the reporting of kinematic data. Journal of Biomechanics, 1995. 28: p. 1257- 1261.
  7. Siegal, P., R. Brackbill, and G. Heath, The epidemiology of walking exercise: implications for promoting activity among sedentary groups. American Journal of Public Health, 1995. 85(5): p. 706-710.
  8. Nicholl, J.P., P. Coleman, and B.T. Williams, The epidemiology of sports and exercise related injury in the United Kingdom. British Journal of Sports Medicine, 1995. 29(4): p. 232-238.
  9. Burnet, E.N. and P.E. Pidcoe, Isometric gluteus medius muscle torque and frontal plane pelvic motion during running. Journal of Sports Science and Medicine, 2009. 8: p. 284-288
  10. Niemuth, P., et al., Hip muscle weakness and overuse injuries in recreational runners. Clinical Journal of Sports Medicine, 2005. 15(1): p. 14-21.
  11. Hollman, J.H., et al., Relationships between knee valgus, hip-muscle strength, and hip-muscle recruitment during a single-limb step down. Journal of Sport Rehabilitation, 2009. 18: p. 104-117.
  12. Kibler, W.B., J. Press, and A. Sciascia, The role of core stability in the athletic function Journal of Sports Medicine, 2006. 36(3): p. 189-198.
  13. Leetun, D.T., et al., Core stability measures as risk factors for lower extremity injury in athletes. Medicine & Science in Sports & Exercise, 2004. 36(6): p. 926-934.
  14. Cichanowski, H., et al., Hip strength in collegiate female athletes with patellofemoral pain. Medicine & Science in Sport & Exercise, 2007. 39(8): p. 1227-1232.
  15. Ireland, M.L., et al., Hip strength measures in female with and without patellofemoral pain. Journal of Orthopaedic & Sports Physical Therapy, 2003. 33(11): p. 671-676.
  16. Nicholas, J.A., A.M. Strizak, and G. Veras, A study of thigh muscle weakness in different pathological states of the lower extremity. American Journal of Sports Medicine, 1976. 4: p. 241-248.
  17. Prins, M.R. and P.V.D. Wurff, Females with patellofemoral pain syndrome have weak hip muscles: a systematic review. Australian Journal of Physiotherapy, 2009. 55: p. 9-15.
  18. Willson, J.D., M.L. Ireland, and I. Davis, Core strength and lower extremity alignment during single leg squats. Medicine & Science in Sports & Exercise, 2006. 38(5): p. 945-952.
  19. Lee, D., The pelvic girdle: An approach to the examination and treatment of the lumbopelvic-hip region. 3rd ed. 2004, Edinburugh: Churchill Livingston.