Acta of bioengineering and biomechanics最新文献_第2页

Experimental research of energy absorbing structures within helmet samples made with the additive manufacturing method - preliminary study 用增材制造方法制备头盔吸能结构的实验研究——初步研究

4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01 DOI: 10.37190/abb-02226-2023-03

Wojciech Toboła, Mateusz Papis, Dominik Jastrzębski, Rafał Perz_

{"title":"Experimental research of energy absorbing structures within helmet samples made with the additive manufacturing method - preliminary study","authors":"Wojciech Toboła, Mateusz Papis, Dominik Jastrzębski, Rafał Perz_","doi":"10.37190/abb-02226-2023-03","DOIUrl":"https://doi.org/10.37190/abb-02226-2023-03","url":null,"abstract":"Purpose This study aims to develop an energy-absorbing structure for bicycle helmets to minimize head injuries caused by collisions. The research team explores three geometric structures produced through additive methods and compares their energy absorption properties with a standard bicycle helmet made of Expanded Polystyrene (EPS) foam. Methods The study prepared samples of three geometric structures (a ball, a honeycomb, and a conical shape) and a fragment of a bicycle helmet made of EPS foam with the same overall dimensions. Laboratory tests were conducted using a pneumatic hammer, piston compressor, anvil, triaxial accelerometer, and data processing systems. Three crash tests were performed for each type of structure, and the anvil's maximum acceleration and stopping distance after the crash were analyzed. Results The study found that the energy absorption properties of the Polylactic Acid (PLA) material printed with the incremental method were comparable or better than those of the EPS material used in helmets. The geometric structure of the energy-absorbing material played a crucial role in its effectiveness. The most promising results were obtained for the ball samples. Conclusions The study concluded that further research on energy-absorbing structures made using the Fused Deposition Modeling (FDM) method could be useful in the production of bicycle helmets. The results show that the geometric structure of the energy-absorbing material is a crucial factor in its effectiveness. The findings suggest that the ball-shaped structure made with PLA material printed using the incremental method could be a promising design for bicycle helmets to minimize head injuries caused by collisions.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136301476","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of foot strike patterns and cutting angles on knee kinematics and kinetics during side-cutting maneuvers 在侧切动作中，足部击打方式和切割角度对膝关节运动学和动力学的影响

4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01 DOI: 10.37190/abb-02192-2023-02

None Wenxing Zhou, None Yujie Qi, None Mengjun Liu, None Chengpang Hsiao, None Lin Wang

{"title":"Effect of foot strike patterns and cutting angles on knee kinematics and kinetics during side-cutting maneuvers","authors":"None Wenxing Zhou, None Yujie Qi, None Mengjun Liu, None Chengpang Hsiao, None Lin Wang","doi":"10.37190/abb-02192-2023-02","DOIUrl":"https://doi.org/10.37190/abb-02192-2023-02","url":null,"abstract":"Purpose Cutting maneuvers are important actions in multidirectional sports but associated with noncontact anterior cruciate ligament (ACL) injuries. This study aimed to investigate the effect of different foot strike patterns and cutting angles on knee kinematics and kinetics. Methods Twenty healthy male team sports athletes performed cuts with maximum speed at three angles (45°, 90°, and 135°) with different foot strike patterns (rearfoot strike [RFS] and forefoot strike [FFS]). A three-dimensional motion capture system combined with a force plate was used to collect makers trajectory and ground reaction force (GRF). Vertical GRF, and knee joint angles and moments were compared among these cutting tasks. Results Regardless of foot strike patterns, increased knee flexion angle, knee valgus moment, and knee internal rotation moment were observed during cutting to sharper angles (p < 0.001). At 90° and 135°, the FFS condition remained in a varus position and showed lower knee flexion moment than the RFS condition (p ≤ 0.004). However, no significant differences in knee kinematic and kinetic variables were found between foot strike patterns during cutting to 45°. Conclusions These findings suggest that sharper cutting angles potentially increase the risk of ACL injury. Compared with the RFS pattern, the FFS pattern induces a slight knee varus angle and a lower knee flexion moment at sharper angles, which might further reduce the load placed on the knee.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136301477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contributions of flexor hallucis longus and brevis muscles to isometric toe flexor force production 长屈肌和短屈肌对等长趾屈肌力产生的贡献

4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01 DOI: 10.37190/abb-02222-2023-02

K. Michael Rowley, Toshiyuki Kurihara, David Ortiz-Weissberg, Kornelia Kulig

{"title":"Contributions of flexor hallucis longus and brevis muscles to isometric toe flexor force production","authors":"K. Michael Rowley, Toshiyuki Kurihara, David Ortiz-Weissberg, Kornelia Kulig","doi":"10.37190/abb-02222-2023-02","DOIUrl":"https://doi.org/10.37190/abb-02222-2023-02","url":null,"abstract":"Purpose Morphological differences between the two primary great toe flexors – flexor hallucis longus (FHL) and flexor hallucis brevis (FHB) – likely drive differences in how these muscles contribute to functional toe flexion torque production. The aim of the study was to investigate FHL and FHB activation in two isometric toe flexion tasks – one called a “toe-pushing” task with the metatarsophalangeal (MTP) joints extended and the interphalangeal (IP) joints in neutral and another called a “toe-gripping” task with the MTP joints in neutral and flexed IP joints. Methods Twenty participants’ FHL and FHB muscles were instrumented with intramuscular electromyography electrodes. Muscle activation was normalized to a maximum voluntary contraction and compared between the two isometric toe flexor force production tasks. Results Overall, participants utilized these two toe flexors completely differently in the two tasks. In the toe-gripping task, the FHL was activated to a much greater extent than the FHB. In fact, 18 our of 20 participants activated FHL at more than seventy percent maximum voluntary contraction and half of participants activated FHB at less than ten percent. In contrast, muscle activation during the toe-pushing task appeared more reliant on the FHB for most participants. Conclusions Different contributions from the FHL and FHB to toe flexor force production in these two tasks are potentially driven by differences in muscle functional length among other factors. These findings help to inform the selection of rehabilitation and training exercises meant to preferentially target intrinsic or extrinsic foot musculature.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136304051","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Redistribution of knee and ankle joint work with different midsole thicknesses in non-rearfoot strikers during running: A cross-sectional study 非后脚着地者在跑步过程中不同中底厚度的膝关节和踝关节工作的再分配:一项横断面研究

4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01 DOI: 10.37190/abb-02202-2023-03

Tomohiro Miyazaki, Takayuki Aimi, Yasuo Nakamura

{"title":"Redistribution of knee and ankle joint work with different midsole thicknesses in non-rearfoot strikers during running: A cross-sectional study","authors":"Tomohiro Miyazaki, Takayuki Aimi, Yasuo Nakamura","doi":"10.37190/abb-02202-2023-03","DOIUrl":"https://doi.org/10.37190/abb-02202-2023-03","url":null,"abstract":"Purpose To investigate the effects of midsole thickness on non-rearfoot strike runners’ redistributions of knee and ankle joint negative and positive work. Methods Fourteen healthy male runners wore minimalist, traditional, and maximalist shoes and ran in a straight line in each shoe in the laboratory at a speed of 15 km/h, with a ±5% difference being allowed. Whole-body kinematics and ground reaction forces were recorded, and the data of eleven non-rearfoot strikers were used for the analysis. Ankle and knee joint negative and positive work was calculated by integrating each joint's torque power. Friedman test was used for statistical comparisons. Results Minimalist shoes induced significantly greater ankle joint negative and positive work than in other shoes. Maximalist shoes induced significantly lower ankle joint positive work and greater knee joint negative work than in other shoes, and significantly greater knee joint positive work than in minimalist shoes. Conclusions Our results indicated that non-rearfoot strikers redistributed joint negative and positive work from the knee to the ankle when using minimalist shoes or from the ankle to the knee when using maximalist shoes. It is recommended that future research employs more rigorous study designs, such as randomised controlled trials and longitudinal studies, to provide a more accurate assessment of the effect of these shoes on injury rates.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136304053","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental research of energy absorbing structures within helmet samples made with the additive manufacturing method - preliminary study. 用增材制造法制造的头盔样品内部吸能结构的实验研究--初步研究。

IF 1 4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01

Wojciech Toboła, Mateusz Papis, Dominik Jastrzębski, Rafał Perz

{"title":"Experimental research of energy absorbing structures within helmet samples made with the additive manufacturing method - preliminary study.","authors":"Wojciech Toboła, Mateusz Papis, Dominik Jastrzębski, Rafał Perz","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: This study aimed to develop an energy-absorbing structure for bicycle helmets to minimize head injuries caused by collisions. The research team explored three geometric structures produced through additive methods and compares their energy absorption properties with a standard bicycle helmet made of Expanded Polystyrene (EPS) foam.Methods: The study prepared samples of three geometric structures (a ball, a honeycomb and a conical shape) and a fragment of a bicycle helmet made of EPS foam with the same overall dimensions. Laboratory tests were conducted using a pneumatic hammer, piston compressor, anvil, triaxial accelerometer and data processing systems. Three crash tests were performed for each type of structure, and the anvil's maximum acceleration and stopping distance after the crash were analyzed.Results: The study found that the energy absorption properties of the Polylactic Acid (PLA) material printed with the incremental method were comparable or better than those of the EPS material used in helmets. The geometric structure of the energy-absorbing material played a crucial role in its effectiveness. The most promising results were obtained for the ball samples.Conclusions: The study concluded that further research on energy-absorbing structures made using the Fused Deposition Modeling (FDM) method could be useful in the production of bicycle helmets. The results show that the geometric structure of the energy-absorbing material is a crucial factor in its effectiveness. The findings suggest that the ballshaped structure made with PLA material printed using the incremental method could be a promising design for bicycle helmets to minimize head injuries caused by collisions.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"25 1","pages":"127-136"},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139680497","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The impact of fatigue on static balance in people with chronic ankle instability. 疲劳对慢性踝关节不稳患者静态平衡的影响。

IF 1 4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01

Małgorzata Kowalczyk, Aleksandra Truszczyńska-Baszak

{"title":"The impact of fatigue on static balance in people with chronic ankle instability.","authors":"Małgorzata Kowalczyk, Aleksandra Truszczyńska-Baszak","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: The aim of the study was to assess static postural stability under fatigue in subjects with chronic ankle instability - \"copers\" in comparison with healthy controls.Methods: We conducted a prospective study on a group of 60 young, physically active subjects, divided into 3 groups: I - 14 subjects with unilateral ankle instability, II - 15 subjects with bilateral ankle instability, III - 31 healthy subjects, without ankle instability. The fatigue trial was based on modified Short-Term Fatigue Protocol. Static stabilography was performed with the use of HUR platform.Results: showed an increase in the value of COP trace length after fatigue test in study population I. The level of COP trace length Z before fatigue was significantly lower than after fatigue. Subjects from study population I had higher levels of COP trace length Z in comparison with the control group. The main effect for the group also proved to be significant. Study population I had higher levels of COP trace length Z in comparison with the control group. For the measurement after fatigue, there was significant difference only between the study population I and the control group.Conclusions: The incidence of structural ankle instability was not correlated with functional instability. Subjects with ankle instability, or \"copers\", had good functional levels, enabling them to perform sports activities. \"Copers\" had weakened proprioception in static stabilography tests. Short and intense fatigue protocol weakened the ability to maintain balance in static stabilography test with eyes closed.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"25 1","pages":"151-160"},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139680504","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The viscoelasticity, anisotropy and location-dependence of mechanical properties of rabbit iris investigated using uniaxial tensile tests. 利用单轴拉伸试验研究兔虹膜的粘弹性、各向异性和机械性能的位置依赖性。

IF 1 4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01

Tan Li, Xiao Qin, Zhicheng Liu, Haixia Zhang, Lin Li

{"title":"The viscoelasticity, anisotropy and location-dependence of mechanical properties of rabbit iris investigated using uniaxial tensile tests.","authors":"Tan Li, Xiao Qin, Zhicheng Liu, Haixia Zhang, Lin Li","doi":"","DOIUrl":"","url":null,"abstract":"Purpose: Abnormal iris mechanical properties have been considered to be an important cause of pupillary-block and angle-closure glaucoma. In this research, viscoelasticity, anisotropy and location-dependence of mechanical properties of rabbit iris were investigated using uniaxial tensile test.Methods: Iris strips were taken along three directions: inner-circumferential direction (ICD), outer-circumferential direction (OCD) and radial direction (RD), respectively. Quasi-static tensile tests and stress-relaxation tests were applied on the iris strips. Then, the stress-stretch data was fitted with third order Ogden model; the stress-relaxation data was fitted with the third order Prony series model. Through comparing the tangent modulus and relaxation limit of the strips from different directions and locations, the viscoelasticity, anisotropy and location-dependence of mechanical properties of rabbit iris were explored.Results: The tangent moduli of iris at the stretch of 1.05 along ICD, OCD, and RD were 3.2 ± 1.4 kPa, 4.2 ± 2.6 kPa, 1.5 ± 0.8 kPa, respectively. Iris strips in ICD and OCD were found to have almost the same stress-relaxation behavior, and both relaxed slower than iris strips in RD.Conclusions: The mechanical properties of the iris were typically nonlinear, viscoelastic, anisotropic and location-dependent. The stress growth rate of the circumferential direction iris strip is significantly lower than that of RD and the stress-relaxation rate is significantly higher than that of the RD. That is, the iris is more prone to deformation in RD and the stress-retention ability after deformation in RD is weak, which is consistent with the fact that the iris bombe more likely happens in RD in vivo. The results of this study may also help us to establish a more accurate finite element model to simulate the flow field of humor aqueous and find the key factor of pupillary-block.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"25 2","pages":"85-92"},"PeriodicalIF":1.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139680586","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dynamic-passive correction of hallux valgus and associated static foot deformities 拇外翻及相关静足畸形的动态被动矫正

4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01 DOI: 10.37190/abb-02200-2023-02

Jacek M. Dygut, Joanna Strąk, Jerzy Detyna, Monika W. Piwowar

{"title":"Dynamic-passive correction of hallux valgus and associated static foot deformities","authors":"Jacek M. Dygut, Joanna Strąk, Jerzy Detyna, Monika W. Piwowar","doi":"10.37190/abb-02200-2023-02","DOIUrl":"https://doi.org/10.37190/abb-02200-2023-02","url":null,"abstract":"Purpose The paper presents, the effects of hallux valgus correction and coexisting static deformities of the foot (transversely-plano and plano-valgus foot) obtained with a new dynamic-passive method of treatment. Methods The study involved 50 patients; 26 with full big toe correction after the passive correction grip (group I) and 24 with big toe correction requiring additional passive abduction (group II). The patients regularly performed exercises using the designed device according to the planned schedule. The progress of the correction was assessed by a medical examination and additional tests. Results Results: The cross-sectional area [cm2] of the abductor hallucis muscle in three-time points among I and II groups of patients with the Hallux Valgus was measured based on MRI images. The STIR examination showed among other the abductor hallucis muscle edema after exercises with the DPc device were carried out. It evidences that exercises with the new device activate the muscle. Alignment of the big toes of both feet in groups I and II were obtained with a statistically significant result (p<0.05). The percentage progression of correction for HV and I/II IM was calculated. Conclusions Based on the new correction approach the alignment of the big toe phalanges and the remaining toes was obtained. The passive setup of the tendons with their distal inserts at the level of the big toe phalanges to the correct path of their course with the withdrawal of articular subluxations was obtained. Simultaneously, the big toe's passive correction was dynamically consolidated through a specially selected set of exercises.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"393 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136301463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

The impact of fatigue on static balance in people with chronic ankle instability 慢性踝关节不稳患者疲劳对静态平衡的影响

4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01 DOI: 10.37190/abb-02214-2023-02

Małgorzata Kowalczyk, Aleksandra Truszczyńska-Baszak

{"title":"The impact of fatigue on static balance in people with chronic ankle instability","authors":"Małgorzata Kowalczyk, Aleksandra Truszczyńska-Baszak","doi":"10.37190/abb-02214-2023-02","DOIUrl":"https://doi.org/10.37190/abb-02214-2023-02","url":null,"abstract":"Purpose The aim of the study was to assess static postural stability under fatigue in subjects with chronic ankle instability – “coopers” in comparison to healthy controls. Methods We conducted a prospective study on a group of 60 young, physically active subjects, who we divided into 3 groups: I- 14 subjects with unilateral ankle instability, II - 15 subjects with bilateral ankle instability, 31 healthy subjects, without ankle instability. The fatigue trial was based on modified Short-Term Fatigue Protocol. Static stabilography was performed with the use of HUR platform. Results Results showed an increase in the value of COP trace length after fatigue test in study population I. The level of COP trace length Z before fatigue was significantly lower than after fatigue. Subjects from study population I had higher levels of COP trace length Z in comparison with the control group. The main effect for the group also proved to be significant. Study population I had higher levels of COP trace length Z in comparison with the control group. For the measurement after fatigue there was significant difference only between the study population I and the control group. Conclusions 1. The incidence of structural ankle instability was not correlated with functional instability. Subjects with ankle instability, or “copers”, had good functional levels, enabling them to perform sports activities. 2. “Copers” had weakened proprioception in static stabilography tests.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136301917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Relationship of lumbar-hip kinematics during trunk flexion and sex, body mass index, and self-reported energy expenditure: a cross-sectional analysis 躯干屈曲时腰髋运动学与性别、体重指数和自我报告的能量消耗的关系:一项横断面分析

4区医学

Acta of bioengineering and biomechanics Pub Date : 2023-01-01 DOI: 10.37190/abb-02211-2023-03

Magdalena Zawadka, Jakub Smołka, Maria Skublewska-Paszkowska, Edyta Lukasik, Grzegorz Zieliński, Piotr Gawda

{"title":"Relationship of lumbar-hip kinematics during trunk flexion and sex, body mass index, and self-reported energy expenditure: a cross-sectional analysis","authors":"Magdalena Zawadka, Jakub Smołka, Maria Skublewska-Paszkowska, Edyta Lukasik, Grzegorz Zieliński, Piotr Gawda","doi":"10.37190/abb-02211-2023-03","DOIUrl":"https://doi.org/10.37190/abb-02211-2023-03","url":null,"abstract":"Purpose Physical activity (PA) is a well-known, simple and effective preventive and therapeutic intervention for low back pain (LBP). In spite of the growing interest in active lifestyles and its benefits, more needs to be known about the relationship between energy expenditure, body mass and lumbar-pelvic kinematics during the forward bending movement in a group of young asymptomatic people who met PA guidelines. Young people can be identified as a future risk group of civilisation diseases and lumbar-hip kinematics can be considered as a predictor of LBP occurrence. The aim of this study was to identify the association of sex, self-reported energy expenditure, body mass index, and lumbar-hip kinematics in young people. Methods Sixty-four students at pre-employment stage participated in the study. They declared moderate-to-high PA and activity-induced energy expenditure (AEE) was self-reported. Kinematic data of the lumbar spine, pelvis, and hip were collected during forward bending using a 3D motion capture system. Results Sex was found to be associated with pelvis (β=-0.38 p=0.002) and lumbar mobility (β=0.49, p<0.001) during forward bending and BMI was related only to lumbar mobility (β=-0.41, p=0.001). Recreation AEE significantly predicted hip flexion mobility (β =0.38, p=0.002). Conclusions This study showed that among a sample of physically active young people, BMI, self-reported AEE, and sex can partially predict lumbar-hip kinematics during trunk flexion. Recreational PA can be regarded as improving hip mobility and thus making forward bending more effective and less prone to injury.","PeriodicalId":6897,"journal":{"name":"Acta of bioengineering and biomechanics","volume":"2012 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136301918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0