Effects of Age and Sex on Properties of Lumbar Erector Spinae in Healthy People: Preliminary Results From a Pilot Study

Wu, Zugui; Wang, Yi; Ye, Zixuan; Guan, Yingxing; Ye, Xiangling; Chen, Zehua; Li, Congcong; Chen, Guoqian; Zhu, Yue; Du, Jinlin; Chen, Guocai; Wang, Xinyang; Xu, Xuemeng

doi:10.3389/fphys.2021.718068

Cited by 10 publications

(19 citation statements)

References 66 publications

(134 reference statements)

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“…The sample in this study was relatively homogenous comprising predominantly female (68%), young (22.7 ± 4.5 years), and right-handed (91%) subjects. In general, muscle tone and stiffness are reported to be greater in males than females 72 – 74 , however, there are also (partially) conflicting findings 70 , 71 , 75 . Nonetheless, higher muscle tone and stiffness in males may arise due to differences in muscle size, mass, conditioning, and fiber composition between the sexes 124 , 139 , which possibly relate to differences in sex hormones 70 and skinfold thickness 75 .…”

Section: Discussionmentioning

confidence: 99%

“…Nonetheless, higher muscle tone and stiffness in males may arise due to differences in muscle size, mass, conditioning, and fiber composition between the sexes 124 , 139 , which possibly relate to differences in sex hormones 70 and skinfold thickness 75 . Beyond sex, significant differences in muscle stiffness have also been reported between age groups (higher in elderly and middle-aged than young individuals) 74 and handedness (higher on the side of the dominant hand) 73 . Although subgroup analysis was performed for sex, we did not consider the impact of age (because only two subjects were over thirty years old) and handedness (because all measures were taken on the right side and only five subjects were left-handed).…”

Section: Discussionmentioning

confidence: 99%

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Effect of osteopathic techniques on human resting muscle tone in healthy subjects using myotonometry: a factorial randomized trial

Bohlen¹,

Schwarze²,

Richter

et al. 2022

Sci Rep

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Musculoskeletal disorders (MSDs) are highly prevalent, burdensome, and putatively associated with an altered human resting muscle tone (HRMT). Osteopathic manipulative treatment (OMT) is commonly and effectively applied to treat MSDs and reputedly influences the HRMT. Arguably, OMT may modulate alterations in HRMT underlying MSDs. However, there is sparse evidence even for the effect of OMT on HRMT in healthy subjects. A 3 × 3 factorial randomised trial was performed to investigate the effect of myofascial release (MRT), muscle energy (MET), and soft tissue techniques (STT) on the HRMT of the corrugator supercilii (CS), superficial masseter (SM), and upper trapezius muscles (UT) in healthy subjects in Hamburg, Germany. Participants were randomised into three groups (1:1:1 allocation ratio) receiving treatment, according to different muscle-technique pairings, over the course of three sessions with one-week washout periods. We assessed the effect of osteopathic techniques on muscle tone (F), biomechanical (S, D), and viscoelastic properties (R, C) from baseline to follow-up (primary objective) and tested if specific muscle-technique pairs modulate the effect pre- to post-intervention (secondary objective) using the MyotonPRO (at rest). Ancillary, we investigate if these putative effects may differ between the sexes. Data were analysed using descriptive (mean, standard deviation, and quantiles) and inductive statistics (Bayesian ANOVA). 59 healthy participants were randomised into three groups and two subjects dropped out from one group (n = 20; n = 20; n = 19–2). The CS produced frequent measurement errors and was excluded from analysis. OMT significantly changed F (−0.163 [0.060]; p = 0.008), S (−3.060 [1.563]; p = 0.048), R (0.594 [0.141]; p < 0.001), and C (0.038 [0.017]; p = 0.028) but not D (0.011 [0.017]; p = 0.527). The effect was not significantly modulated by muscle-technique pairings (p > 0.05). Subgroup analysis revealed a significant sex-specific difference for F from baseline to follow-up. No adverse events were reported. OMT modified the HRMT in healthy subjects which may inform future research on MSDs. In detail, MRT, MET, and STT reduced the muscle tone (F), decreased biomechanical (S not D), and increased viscoelastic properties (R and C) of the SM and UT (CS was not measurable). However, the effect on HRMT was not modulated by muscle–technique interaction and showed sex-specific differences only for F.Trial registration German Clinical Trial Register (DRKS00020393).

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Effect of osteopathic techniques on human resting muscle tone in healthy subjects using myotonometry: a factorial randomized trial

Bohlen¹,

Schwarze²,

Richter

et al. 2022

Sci Rep

View full text Add to dashboard Cite

show abstract

“…The sample in this study was relatively homogenous comprising predominantly female (68%), young (22.7 ± 4.5 years), and right-handed (91%) subjects. In general, muscle tone and stiffness are reported to be greater in males than females [140–142], however, there are also conflicting findings [105]. Nonetheless, higher muscle tone and stiffness in males may arise due to differences in the composition of muscle fiber types between the genders [143] as well as physiological varieties in muscle size, mass, and conditioning [130].…”

Section: Discussionmentioning

confidence: 99%

“…Nonetheless, higher muscle tone and stiffness in males may arise due to differences in the composition of muscle fiber types between the genders [143] as well as physiological varieties in muscle size, mass, and conditioning [130]. Besides gender, significant differences in muscle stiffness have also been reported between age groups (higher in elderly and middle-aged than young individuals) [142] and handedness (higher on the side of the dominant hand) [141]. Although subgroup analysis was performed for gender, we did not consider the impact of age (because only two subjects were over thirty years old) and handedness (because all measures were taken on the right side and only five subjects were left-handed).…”

Section: Discussionmentioning

confidence: 99%

Immediate effect of osteopathic techniques on human resting muscle tone in healthy subjects using myotonometry: A factorial randomized trial

Bohlen¹,

Schwarze²,

Richter

et al. 2022

Preprint

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Background: Musculoskeletal disorders (MSDs) are highly prevalent, burdensome, and putatively associated with an altered human resting muscle tone (HRMT). Osteopathic manipulative treatment (OMT) is commonly and effectively applied to treat MSDs and reputedly influences the HRMT. Arguably, OMT may modulate alterations in HRMT underlying MSDs. However, there is sparse evidence even for the effect of OMT on HRMT in healthy subjects. Methods: A 3x3 factorial randomised trial was performed to investigate the immediate-term effect of myofascial release (MRT), muscle energy (MET), and soft tissue techniques (STT) on the HRMT of the corrugator supercilii (CS), superficial masseter (SM), and upper trapezius muscles (UT) in healthy subjects in Hamburg, Germany. Participants were randomised into three groups (1:1:1 allocation ratio) receiving treatment, according to different muscle-technique pairings, over the course of three sessions with one-week washout periods. Primarily, we assessed the effect of osteopathic techniques on muscle tone (F), biomechanical (S, D), and viscoelastic properties (R, C) from baseline to follow-up (main effect) and tested if specific muscle-technique pairs modulate the effect pre- to post-intervention (interaction effect) using the MyotonPRO (at rest). Data were analysed using descriptive (mean, standard deviation, quantiles, and simple effect) and inductive statistics (Bayesian ANOVA). Results: 59 healthy participants were randomised into three groups and two subjects dropped out from one group (n=20; n=20; n=19 and n=17, respectively). The CS produced frequent measurement errors and was excluded from analysis. The main effect changed significantly for F (-0.163 [0.060]; p=0.008), S (-3.060 [1.563]; p=0.048), R (0.594 [0.141]; p<0.001), and C (0.038 [0.017]; p=0.028) but not for D (0.011 [0.017]; p=0.527). The interaction effect did not change significantly (p>0.05). No adverse events were reported. Conclusion: OMT modified the HRMT in healthy subjects which may inform future research on MSDs. In detail, MRT, MET, and STT reduced the muscle tone (F), decreased biomechanical (S not D), and increased viscoelastic properties (R and C) of the SM and UT (CS was not measurable) at immediate term. However, the effect on HRMT was not modulated by muscle-technique interaction.

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“…A person with back pain exhibits a deficiency in TrA (Transverse Abdominis) activation, showing that the local abdominal muscle of the subject with back pain has a motor control disorder [4]. Changes in the muscles around the spine are related to chronic back pain [5,6]. Other abdominal muscles (constituting the abdominal wall), Internal oblique (IO), External Oblique muscle (EO), and Rectus Abdominis (RA) should be considered together when attempting to understand the effect on low back pain rather than being limited to TrA [11].…”

mentioning

confidence: 99%

Effects of Both Abdominal Drawing-In Maneuver and Co-Contraction of Hip Adductor Muscle while Bridge Exercise on Abdominal Muscle

Park

Lee

Jung

et al. 2022

KSPM

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This study examined the effect of bridge exercise-abdominal draw-in maneuver (ADIM) with hip adductor co-contraction on the TrA thickness and whether it is effective as a core stability exercise. METHODS:The subjects of this study, 33 men with no history in the past and who provided prior consent, were selected through interviews with male students of S University. The subjects performed five movements, including bridge exercise and ADIM, and performed two demonstrations and two exercises in advance. The abdominal muscles were measured using ultrasonography once in each movement, and the abdominal muscle tone was measured using a soft tissue tone measurement.RESULTS: There was a significant difference in the thickness between the TrA and Internal Oblique Muscles at various bridge positions (p < .05), and no significant difference †Corresponding Author : Seong-Gil Kim

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Effects of Age and Sex on Properties of Lumbar Erector Spinae in Healthy People: Preliminary Results From a Pilot Study

Cited by 10 publications

References 66 publications

Effect of osteopathic techniques on human resting muscle tone in healthy subjects using myotonometry: a factorial randomized trial

Effect of osteopathic techniques on human resting muscle tone in healthy subjects using myotonometry: a factorial randomized trial

Immediate effect of osteopathic techniques on human resting muscle tone in healthy subjects using myotonometry: A factorial randomized trial

Effects of Both Abdominal Drawing-In Maneuver and Co-Contraction of Hip Adductor Muscle while Bridge Exercise on Abdominal Muscle

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