Corrigendum: Injury Incidence Across the Menstrual Cycle in International Footballers

Martin, Dan; Timmins, Kate A.; Cowie, Charlotte; Alty, Jon; Mehta, Ritan; Tang, Alicia; Varley, Ian

doi:10.3389/fspor.2021.745792

Cited by 4 publications

(3 citation statements)

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“…Low estradiol concentration has been shown to increase musculotendinous stiffness and decrease elasticity of tissues in the lower limb during menstruation (21,(24)(25)(26)(27). This has been extensively studied in the peripheral joints such as the anterior cruciate ligament (ACL) of the knee and the plantar fascia of the foot, and in terms of injury rates (21,28). The functional integrity of the passive and active support structures of the pelvic floor are important to understanding disorders (29).…”

Section: Effects Of the Menstrual Cycle On Tissue Propertiesmentioning

confidence: 99%

Potential role of physical labor and cultural views of menstruation in high incidence of pelvic organ prolapse in Nepalese women: a comparative study across the menstrual cycle

Biswokarma,

Brandon,

Lohman

et al. 2024

Front. Med.

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IntroductionPelvic organ prolapse (POP) is a significant health concern for young Nepali women, with potential risk factors including pelvic floor trauma from vaginal delivery and heavy lifting. The prevalence of symptomatic POP (SPOP) among nulliparous women in Nepal is 6%, while the general population of Nepali women aged 15–49 years reports a prevalence of 7%. Surprisingly, the average age of SPOP onset in Nepal is 27 years, challenging the assumption that postmenopausal age and vaginal delivery are the sole risk factors. This study aims to investigate the influence of increased intra-abdominal pressure (IAP) during lifting tasks on pelvic organ descent in Nepali women across different menstrual cycle stages.MethodsThe study included 22 asymptomatic Nepali women aged 18–30 years who regularly engage in heavy lifting. Intra-abdominal pressure was measured intra-vaginally during typical and simulated lifting tasks, which encompassed various scenarios such as ballistic lifting, ramped lifting, and pre-contraction of pelvic floor muscles, as well as coughing, Valsalva maneuver, and pelvic floor contractions. Pelvic floor displacement was recorded using transperineal ultrasound during menstruation, ovulation, and the mid-luteal phase.ResultsResults indicated that pelvic floor displacement was greater during menstruation than ovulation when performing a simulated ballistic lifting task (6.0 ± 1.6 mm vs. 5.1 ± 1.5 mm, p = 0.03, d = 0.6). However, there was no significant difference in pelvic floor displacement during lifting when the pelvic muscles were pre-contracted.ConclusionThese findings suggest that lifting heavy loads during menstruation may increase the risk of stretching and injuring pelvic floor supportive tissues, potentially contributing to SPOP in young Nepali women. Pre-contracting pelvic floor muscles during lifting tasks may offer a protective effect. Understanding these factors could aid in developing targeted preventive measures and raising awareness about the impact of heavy lifting on pelvic floor health among Nepali women.

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Section: Effects Of the Menstrual Cycle On Tissue Propertiesmentioning

confidence: 99%

Potential role of physical labor and cultural views of menstruation in high incidence of pelvic organ prolapse in Nepalese women: a comparative study across the menstrual cycle

Biswokarma,

Brandon,

Lohman

et al. 2024

Front. Med.

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“…This sex-difference is reflected in women having a more compliant patellar tendon than men ( Onambele et al, 2007 ; Hicks et al, 2013 ), which may be linked to higher circulating levels of estrogen in women ( Hansen et al, 2013 ). As tendon and ligament comprise ∼80% type I collagen ( Frank, 2004 ; Kjaer, 2004 ), and circulating levels of estrogen fluctuate during the menstrual cycle in eumenorrheic women, this may explain the higher incidence of muscle and tendon injuries in the late follicular phase of the menstrual cycle, i.e., when circulating estrogen concentration peaks ( Martin et al, 2021 ). Another injury risk factor in women’s soccer is muscle weakness ( Crossley et al, 2020 ), so it follows that incorporating resistance exercise into a soccer training program should increase strength, thereby reducing injury risk.…”

Section: Introductionmentioning

confidence: 99%

Collagen supplementation augments changes in patellar tendon properties in female soccer players

Lee

Bridge²,

Clark³

et al. 2023

Front. Physiol.

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We investigated the effect of collagen hydrolysate supplementation on changes in patellar tendon (PT) properties after 10 weeks’ training in female soccer players from a Football Association Women’s Super League Under 21 s squad. We pair-matched n = 17 players (age: 17 ± 0.9 years; height: 1.66 ± 0.06 m; mass: 58.8 ± 8.1 kg) for baseline knee extension (KE) maximum isometric voluntary contraction (MIVC) torque, age, height, and body mass, and randomly assigned them to collagen (COL) or placebo (PLA) groups (COL n = 8, PLA n = 9). Participants consumed 30 g collagen hydrolysate supplementation or energy-matched PLA (36.5 g maltodextrin, 8.4 g fructose) and plus both groups consumed 500 mg vitamin C, after each training session, which comprised bodyweight strength-, plyometric- and/or pitch-based exercise 3 days/week for 10 weeks in-season. We assessed KE MIVC torque, vastus lateralis muscle thickness and PT properties using isokinetic dynamometry and ultrasonography before and after 10 weeks’ soccer training. KE MIVC torque, muscle thickness and tendon cross-sectional area did not change after training in either group. However, COL increased PT stiffness [COL, +18.0 ± 12.2% (d = 1.11) vs. PLA, +5.1 ± 10.4% (d = 0.23), p = 0.049] and Young’s modulus [COL, +17.3 ± 11.9% (d = 1.21) vs. PLA, +4.8 ± 10.3% (d = 0.23), p = 0.035] more than PLA. Thus, 10 weeks’ in-season soccer training with COL increased PT mechanical and material properties more than soccer training alone in high-level female soccer players. Future studies should investigate if collagen hydrolysate supplementation can improve specific aspects of female soccer performance requiring rapid transference of force, and if it can help mitigate injury risk in this under-researched population.

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“…The lack of research in this area has been already acknowledged 26 and guidelines have been published 27,28 . A recent study concluded that injuries in eumenorrheic football players occurred twice as much in the late follicular phase, as compared to early follicular and luteal phases 29 Which injury prevention programs are working better in women?…”

Section: Introductionmentioning

confidence: 99%

Elite women’s football: Evolution and challenges for the years ahead

Nassis

Brito

Heiner-Møller³

et al. 2021

Scandinavian Med Sci Sports

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Corrigendum: Injury Incidence Across the Menstrual Cycle in International Footballers

Cited by 4 publications

References 0 publications

Potential role of physical labor and cultural views of menstruation in high incidence of pelvic organ prolapse in Nepalese women: a comparative study across the menstrual cycle

Potential role of physical labor and cultural views of menstruation in high incidence of pelvic organ prolapse in Nepalese women: a comparative study across the menstrual cycle

Collagen supplementation augments changes in patellar tendon properties in female soccer players

Elite women’s football: Evolution and challenges for the years ahead

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