Assessing the differences in muscle stiffness measured with shear wave elastography and myotonometer during the menstrual cycle in young women

Khowailed, Iman Akef; Lee, Youngjin; Lee, Haneul

doi:10.1111/cpf.12763

Cited by 14 publications

(11 citation statements)

References 33 publications

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“…This suggests that the quadriceps and medial site of hamstrings (ST) may be affected during the ovulatory phase, when E2 concentrations are higher [11]. On the other hand, in the lower leg muscle group, no periodic changes in stiffness of the PL, TA, or MG were seen [13]. Previous studies also showed site-specific variations, suggesting that mechanical properties may exhibit site-specific changes.…”

Section: Discussionmentioning

confidence: 89%

“…Recently, the MyotonPRO digital palpation device (Myoton AS, Tallinn, Estonia), which allows objective, noninvasive measurement of mechanical properties, has been used to evaluate muscle mechanical properties [11][12][13]. A study using the MyotonPRO to examine changes in mechanical properties of the thigh musculature during the early follicular, ovulatory, and luteal phases reported that stiffness of the vastus medialis muscle (VM) and semitendinosus muscle (ST) was higher during the ovulatory phase compared to the luteal phase, while the vastus lateralis muscle (VL) and biceps femoris muscle (BF) did not change with the menstrual cycle [11].…”

Section: Ofmentioning

confidence: 99%

“…To the best of our knowledge, the mechanical properties of tendons during the menstrual cycle have not been examined using MyotonPRO. A previous study examining changes in the mechanical properties of lower leg muscle groups during the early follicular and ovulatory phases reported no changes during the menstrual cycle to the stiffness of the peroneus longus muscle (PL), tibialis anterior muscle (TA) or medial head of the gastrocnemius muscle (MG) [12,13]. Examination of the muscles and tendons of the thigh and lower leg during the same menstrual cycle is therefore needed to clarify changes in the mechanical properties of the muscle-tendon complex.…”

Section: Ofmentioning

confidence: 99%

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Changes in Mechanical Properties of Thigh and Lower Leg Musculotendons during the Early Follicular and Ovulatory Phases

Saito¹,

Shagawa²,

Sugimoto³

et al. 2023

Preprint

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The purpose of this study was to determine changes in the mechanical properties of the thigh and lower leg musculature during the early follicular and ovulatory phases. Subjects were 15 female university students with normal menstrual cycles. The early follicular and ovulatory phases were estimated by the basal body temperature method, ovulation kits, and salivary estradiol concentration measurement. The MyotonPRO digital palpation device (Myoton AS, Tallinn, Estonia) was used to measure muscle and tendon stiffness in the early follicular and ovulatory phases. Measurement sites were the rectus femoris (RF), vastus medialis (VM), patellar tendon (PT), medial head of gastrocnemius, soleus, and Achilles tendon. No significant differences in stiffness of all muscle tendons were identified between the early follicular and ovulatory phases. In the ovulatory phase, a significant positive correlation was seen between stiffness of RF and PT, and between stiffness of VM and PT. These results suggest that the stiffness of muscles and tendons of anterior sites of the thigh and posterior sites of the lower leg may not change between the early follicular and ovulatory phases. During the ovulatory phase, tendons may also be stiffer in individuals with stiffer anterior thigh muscles.

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Section: Discussionmentioning

confidence: 89%

Section: Ofmentioning

confidence: 99%

Section: Ofmentioning

confidence: 99%

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Changes in Mechanical Properties of Thigh and Lower Leg Musculotendons during the Early Follicular and Ovulatory Phases

Saito¹,

Shagawa²,

Sugimoto³

et al. 2023

Preprint

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“…The authors of this study suggested that the stage of the cycle in young women should be a consideration when using SWE as a measure of stiffness. 33 Additionally, the effects of physical activity on the shear modulus have been recently found to increase the stiffness of the infraspinatus after short-term activity. 34 The data from this study highlights the importance of attempting to control participant physical activity between measures.…”

Section: Discussionmentioning

confidence: 99%

Upper extremity soft tissue stiffness measured with shear wave elastography: A between-day reliability study

Day

Merriman

2023

Shoulder & Elbow

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Background Imbalances in soft tissue stiffness (STS) of the pectoralis and common wrist extensors (CWEs) can adversely alter upper extremity function. Shear wave elastography (SWE) has the capacity to provide precise, repeatable, objective data on STS. The purpose of this study was to determine the between-day intrarater reliability for the pectoralis and CWE tendon stiffness as measured by SWE. Methods STS measured by the shear wave modulus (kilopascals (kPa)) was captured bilaterally on the pectoralis major, pectoralis minor, and CWE tendon using 2D SWE ultrasound imaging (GE Logiq S8, 9 L transducer) on two separate days. Within examiner intraclass correlation coefficients (ICC (3, 3)) with 95% confidence intervals, standard error of the measure, and minimal detectable changes were calculated. Results The investigators recruited 10 healthy participants (mean age = 23.50 ± 1.43). Between day intrarater reliability values were obtained for the dominant pectoralis major ICC = 0.70 (−0.15, −0.93), nondominant pectoralis major ICC = 0.63 (−0.30, −0.91), dominant pectoralis minor ICC = 0 .72(−0.04, −0.93), nondominant pectoralis minor ICC = 0.75(0.08, −0.94), dominant CWE tendon ICC = 0.75(−0.08, −0.94), and nondominant CWE tendon ICC = 0.75(−0.12, −0.94). Discussion Our data demonstrate acceptable reliability but future studies should include methods that control for variables known to effect STS.

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“…E2 is beneficial for muscle strength in females (21) and may be related to E2 maintaining muscle mass (22), maintaining the satellite cell pool for regeneration (23), influencing contractility via the binding of myosin heavy chains to actin through phosphorylation of the regulatory light chain (22) and protein synthesis (myofibrillar and collagen) (16). Interestingly, lower muscle stiffness has been shown to be correlated with estrogen concentrations (24)(25)(26)(27), which may protect the muscle from injury (28). Conversely, in tendons, E2 has been shown to affect both the collagen synthesis and the mechanical properties of the tissue, showing that females with higher estrogen may have reduced tendon strength (29).…”

mentioning

confidence: 99%

Oral Contraception Use and Musculotendinous Injury in Young Female Patients: A Database Study

RODRIGUEZ,

LIU,

SOEDIRDJO

et al. 2024

Medicine &Amp; Science in Sports &Amp; Exercise

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Purpose The purpose of this study is to characterize the effect of sex and the influence of oral contraception usage on musculotendinous injury (MTI). Current literature suggests a disparity in the incidence of MTIs between males and females. This may be attributed to inherent biological differences between the sexes, such as in the sex hormonal milieu. There is a lack of information associating sex hormone milieu and MTI. Methods We searched the PearlDiver database (a for-fee healthcare database) for males, females taking oral contraceptives (OC), and eumenorrheic females not taking any form of hormonal contraceptives (non-OC) aged 18-39. The three populations were matched by age and BMI. We queried the database for lower-extremity skeletal muscle/tendon injury diagnoses in these groups. Results Each group contained 42,267 patients with orthopedic injuries. There were a total of 1476 (3.49%) skeletal muscle and tendon injuries in the male group, 1078 (2.55%) in non-OC females, and 231 (0.55%) in OC females. Both the non-OC and OC groups had a significantly smaller proportion of MTIs than males (P < 0.0001), and therefore these groups were less likely (adjusted odds ratios 0.72 and 0.15, respectively) to experience MTIs when controlled for potential covariates. Conclusions In this study we show that females are less likely to develop MTIs to total injuries, when compared to males, with OC using females being least likely followed by non-OC females. These results are consistent with other epidemiological studies; however, overall results in the literature are variable. This study adds to the emerging body of literature on sex hormone-influenced musculoskeletal injury but, more specifically, MTIs, which have not been rigorously investigated.

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Assessing the differences in muscle stiffness measured with shear wave elastography and myotonometer during the menstrual cycle in young women

Cited by 14 publications

References 33 publications

Changes in Mechanical Properties of Thigh and Lower Leg Musculotendons during the Early Follicular and Ovulatory Phases

Changes in Mechanical Properties of Thigh and Lower Leg Musculotendons during the Early Follicular and Ovulatory Phases

Upper extremity soft tissue stiffness measured with shear wave elastography: A between-day reliability study

Oral Contraception Use and Musculotendinous Injury in Young Female Patients: A Database Study

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