Journal of Applied Biomechanics最新文献

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Can Shoulder Impairments Be Classified From 3-Dimensional Kinematics Using Inertial Sensors? 利用惯性传感器可以从三维运动学中对肩部损伤进行分类吗?
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-08-01 DOI: 10.1123/jab.2022-0173
Bruno Mazuquin, Karl Peter Gill, Puneet Monga, James Selfe, Jim Richards
{"title":"Can Shoulder Impairments Be Classified From 3-Dimensional Kinematics Using Inertial Sensors?","authors":"Bruno Mazuquin,&nbsp;Karl Peter Gill,&nbsp;Puneet Monga,&nbsp;James Selfe,&nbsp;Jim Richards","doi":"10.1123/jab.2022-0173","DOIUrl":"https://doi.org/10.1123/jab.2022-0173","url":null,"abstract":"<p><p>Inertial sensors may help clinicians to assess patients' movement and potentially support clinical decision making. Our aim was to determine whether shoulder range of motion during movement tasks measured using inertial sensors is capable of accurately discriminating between patients with different shoulder problems. Inertial sensors were used to measure 3-dimensional shoulder motion during 6 tasks of 37 patients on the waiting list for shoulder surgery. Discriminant function analysis was used to identify whether the range of motion of different tasks could classify patients with different shoulder problems. The discriminant function analysis could correctly classify 91.9% of patients into one of the 3 diagnostic groups based. The tasks that associated a patient with a particular diagnostic group were the following: subacromial decompression: abduction, rotator cuff repair of tears ≤5 cm: flexion and rotator cuff repair of tears >5 cm: combing hair, abduction, and horizontal abduction-adduction. The discriminant function analysis showed that range of motion measured by inertial sensors can correctly classify patients and could be used as a screening tool to support surgery planning.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":"39 4","pages":"264-267"},"PeriodicalIF":1.4,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9920426","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
Head Impact Exposure in Female Collegiate Soccer by Activity Type. 女大学生足球运动类型的头部碰撞暴露。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-08-01 DOI: 10.1123/jab.2022-0134
Mary Frances Segars, Tanner M Filben, N Stewart Pritchard, Logan E Miller, Christopher M Miles, Joel D Stitzel, Jillian E Urban
{"title":"Head Impact Exposure in Female Collegiate Soccer by Activity Type.","authors":"Mary Frances Segars,&nbsp;Tanner M Filben,&nbsp;N Stewart Pritchard,&nbsp;Logan E Miller,&nbsp;Christopher M Miles,&nbsp;Joel D Stitzel,&nbsp;Jillian E Urban","doi":"10.1123/jab.2022-0134","DOIUrl":"https://doi.org/10.1123/jab.2022-0134","url":null,"abstract":"<p><p>Soccer, one of the most popular sports in the world, has one of the highest rates of sports-related concussions. Additionally, soccer players are frequently exposed to nonconcussive impacts from intentionally heading the ball, a fundamental component of the sport. There have been many studies on head impact exposure in soccer, but few focus on soccer practices or practice activities. This study aimed to characterize the frequency and magnitude of head impacts in National Collegiate Athletic Association Division I female soccer practice activities using a custom-fit instrumented mouthpiece. Sixteen players were instrumented over the course of 54 practice sessions. Video analysis was performed to verify all mouthpiece-recorded events and classify practice activities. Category groupings of practice activities include technical training, team interaction, set pieces, position-specific, and other. Differences in head impact rates and peak resultant kinematics were observed across activity types and category groupings. Technical training had the highest impact rate compared to other category groupings. Impacts occurring during set piece activities had the highest mean kinematic values. Understanding drill exposure can help inform coaches on training plans aimed to reduce head impact exposure for their athletes.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":"39 4","pages":"209-216"},"PeriodicalIF":1.4,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9925655","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
Running-Related Achilles Tendon Injury: A Prospective Biomechanical Study in Recreational Runners. 跑步相关跟腱损伤:休闲跑步者的前瞻性生物力学研究。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-08-01 DOI: 10.1123/jab.2022-0221
Jiri Skypala, Joseph Hamill, Michal Sebera, Steriani Elavsky, Andrea Monte, Daniel Jandacka
{"title":"Running-Related Achilles Tendon Injury: A Prospective Biomechanical Study in Recreational Runners.","authors":"Jiri Skypala,&nbsp;Joseph Hamill,&nbsp;Michal Sebera,&nbsp;Steriani Elavsky,&nbsp;Andrea Monte,&nbsp;Daniel Jandacka","doi":"10.1123/jab.2022-0221","DOIUrl":"https://doi.org/10.1123/jab.2022-0221","url":null,"abstract":"<p><p>There are relatively few running studies that have attempted to prospectively identify biomechanical risk factors associated with Achilles tendon (AT) injuries. Therefore, the aim was to prospectively determine potential running biomechanical risk factors associated with the development of AT injuries in recreational, healthy runners. At study entry, 108 participants completed a set of questionnaires. They underwent an analysis of their running biomechanics at self-selected running speed. The incidence of AT running-related injuries (RRI) was assessed after 1-year using a weekly questionnaire standardized for RRI. Potential biomechanical risk factors for the development of AT RRI injury were identified using multivariable logistic regression. Of the 103 participants, 25% of the sample (15 males and 11 females) reported an AT RRI on the right lower limb during the 1-year evaluation period. A more flexed knee at initial contact (odds ratio = 1.146, P = .034) and at the midstance phase (odds ratio = 1.143, P = .037) were significant predictors for developing AT RRI. The results suggested that a 1-degree increase in knee flexion at initial contact and midstance was associated with a 15% increase in the risk of an AT RRI, thus causing a limitation of training or a stoppage of running in runners.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":"39 4","pages":"237-245"},"PeriodicalIF":1.4,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9920965","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: 1
In Silico Biomarkers of Motor Function to Inform Musculoskeletal Rehabilitation and Orthopedic Treatment. Silico运动功能生物标志物为肌肉骨骼康复和骨科治疗提供信息。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-06-22 Print Date: 2023-10-01 DOI: 10.1123/jab.2023-0029
Ilse Jonkers, Erica Beaucage-Gauvreau, Bryce Adrian Killen, Dhruv Gupta, Lennart Scheys, Friedl De Groote
{"title":"In Silico Biomarkers of Motor Function to Inform Musculoskeletal Rehabilitation and Orthopedic Treatment.","authors":"Ilse Jonkers,&nbsp;Erica Beaucage-Gauvreau,&nbsp;Bryce Adrian Killen,&nbsp;Dhruv Gupta,&nbsp;Lennart Scheys,&nbsp;Friedl De Groote","doi":"10.1123/jab.2023-0029","DOIUrl":"10.1123/jab.2023-0029","url":null,"abstract":"<p><p>In this review, we elaborate on how musculoskeletal (MSK) modeling combined with dynamic movement simulation is gradually evolving from a research tool to a promising in silico tool to assist medical doctors and physical therapists in decision making by providing parameters relating to dynamic MSK function and loading. This review primarily focuses on our own and related work to illustrate the framework and the interpretation of MSK model-based parameters in patients with 3 different conditions, that is, degenerative joint disease, cerebral palsy, and adult spinal deformities. By selecting these 3 clinical applications, we also aim to demonstrate the differing levels of clinical readiness of the different simulation frameworks introducing in silico model-based biomarkers of motor function to inform MSK rehabilitation and treatment, with the application for adult spinal deformities being the most recent of the 3. Based on these applications, barriers to clinical integration and positioning of these in silico technologies within standard clinical practice are discussed in the light of specific challenges related to model assumptions, required level of complexity and personalization, and clinical implementation.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":" ","pages":"284-293"},"PeriodicalIF":1.4,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9674597","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: 1
Joint Coordination With a Change in Task Constraint During Accurate Overhead Throwing. 精确顶投过程中任务约束变化下的关节协调。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-06-01 DOI: 10.1123/jab.2022-0130
Arata Kimura, Shinsuke Yoshioka, Senshi Fukashiro
{"title":"Joint Coordination With a Change in Task Constraint During Accurate Overhead Throwing.","authors":"Arata Kimura,&nbsp;Shinsuke Yoshioka,&nbsp;Senshi Fukashiro","doi":"10.1123/jab.2022-0130","DOIUrl":"https://doi.org/10.1123/jab.2022-0130","url":null,"abstract":"<p><p>In sports situations, players may be required to throw at different speeds. The question of how skilled players throw the ball accurately to the desired location under different speed conditions is of interest to biomechanics researchers. Previous research suggested that throwers use different types of joint coordination. However, joint coordination with a change in throwing speed has not been studied. Here, we show the effects of changes in throwing speed on joint coordination during accurate overhead throwing. Participants were seated on a low chair with their trunk fixed and threw a baseball aimed at a target under 2 different speed conditions (slow and fast). In the slow condition, the elbow flexion/extension angle coordinated with other joint angles and angular velocities to reduce the variability of the vertical hand velocity. In the fast condition, the shoulder internal/external rotation angle and the shoulder horizontal flexion/extension angular velocity coordinated with other joint angles and angular velocities to reduce the variability of the vertical hand velocity. These results showed that joint coordination differed with changes in throwing speed, indicating that joint coordination is not always fixed, but may differ depending on the task constraints, such as throwing speed.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":"39 3","pages":"169-178"},"PeriodicalIF":1.4,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9559584","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: 1
The Effect of Sensor Placement on Measured Distal Tibial Accelerations During Running. 传感器放置对跑步时胫骨远端加速度测量的影响。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-06-01 DOI: 10.1123/jab.2022-0249
Lauren K Sara, Jereme Outerleys, Caleb D Johnson
{"title":"The Effect of Sensor Placement on Measured Distal Tibial Accelerations During Running.","authors":"Lauren K Sara,&nbsp;Jereme Outerleys,&nbsp;Caleb D Johnson","doi":"10.1123/jab.2022-0249","DOIUrl":"https://doi.org/10.1123/jab.2022-0249","url":null,"abstract":"<p><p>Inertial measurement units (IMUs) attached to the distal tibia are a validated method of measuring lower-extremity impact accelerations, called tibial accelerations (TAs), in runners. However, no studies have investigated the effects of small errors in IMU placement, which would be expected in real-world, autonomous use of IMUs. The purpose of this study was to evaluate the effect of a small proximal shift in IMU location on mean TAs and relationships between TAs and ground reaction force loading rates. IMUs were strapped to 18 injury-free runners at a specified standard location (∼1 cm proximal to medial malleolus) and 2 cm proximal to the standard location. TAs and ground reaction forces were measured while participants ran at self-selected and 10% slower/faster speeds. Mean TA was lower at the standard versus proximal IMU location in the faster running condition (P = .026), but similar in the slower (P = .643) and self-selected conditions (P = .654). Mean TAs measured at the standard IMU explained more variation in ground reaction force loading rates (r2 = .79-.90; P < .001) compared with those measured at the proximal IMU (r2 = .65-.72; P < .001). These results suggest that careful attention should be given to IMU placement when measuring TAs during running.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":"39 3","pages":"199-203"},"PeriodicalIF":1.4,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9521270","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
Mechanisms of Anterior Cruciate Ligament Tears in Professional National Basketball Association Players: A Video Analysis. 职业篮球运动员前十字韧带撕裂机制:视频分析。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-06-01 DOI: 10.1123/jab.2022-0266
Adam J Petway, Matthew J Jordan, Scott Epsley, Philip Anloague, Ernest Rimer
{"title":"Mechanisms of Anterior Cruciate Ligament Tears in Professional National Basketball Association Players: A Video Analysis.","authors":"Adam J Petway,&nbsp;Matthew J Jordan,&nbsp;Scott Epsley,&nbsp;Philip Anloague,&nbsp;Ernest Rimer","doi":"10.1123/jab.2022-0266","DOIUrl":"https://doi.org/10.1123/jab.2022-0266","url":null,"abstract":"<p><p>A systematic search was performed of online databases for any anterior cruciate ligament (ACL) injuries within the NBA. Video was obtained of injuries occurring during competition and downloaded for 2-dimensional video analysis. Thirty-five in-game videos were obtained for analysis. Of the reviewed cases, 19% were noncontact ACL injuries where there was no player-to-player contact from an opposing player. Three injury mechanism categories were found based on the events at the point of initial ground contact of the foot of the injured limb: single-leg casting (mean dorsiflexion angle 18.9° (14.4°); mean knee flexion angle 15.6° (7.8°); and mean trunk lateral flexion 18.2° (8.4°)); bilateral hop (mean dorsiflexion angle 18.2° (15.2°), mean knee flexion angle 21° (14.5°), mean trunk extension angle 6.9° (11.4°), and landing angle from the athlete's center of mass 47.9° (10.1°)); and single-leg landing after contact (mean abduction angle of the swing leg 105.4° (18.1°), mean knee flexion angle of the injured limb 34.2° (8.0°), and mean trunk ipsilateral flexion angle 22.2° (7.0°)).</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":"39 3","pages":"143-150"},"PeriodicalIF":1.4,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9578163","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: 2
The Effects of Posture and Dynamic Stretching on the Electromechanical Delay of the Paraspinal Muscles. 体位和动态拉伸对棘旁肌机电延迟的影响。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-06-01 DOI: 10.1123/jab.2022-0271
Richard O Fagbemigun, Melissa Cavallo, Stephen H M Brown
{"title":"The Effects of Posture and Dynamic Stretching on the Electromechanical Delay of the Paraspinal Muscles.","authors":"Richard O Fagbemigun,&nbsp;Melissa Cavallo,&nbsp;Stephen H M Brown","doi":"10.1123/jab.2022-0271","DOIUrl":"https://doi.org/10.1123/jab.2022-0271","url":null,"abstract":"<p><p>Electromechanical delay (EMD) of muscle is influenced in part by its in-series arrangement with connective tissue. Therefore, studying EMD might provide a better understanding of the muscle-connective tissue interaction. Here, EMD of the thoracic and lumbar erector spinae muscles were investigated under conditions that could influence muscle-connective tissue interaction. A total of 19 participants performed isometric back extension contractions in 3 different postures that influence lumbar spine angle: sitting, standing, and kneeling. They then performed a 15-minute dynamic stretching routine and repeated the standing contractions. Mean lumbar flexion angles of 0.5°, 9.9°, and 19.8° were adopted for standing, kneeling, and sitting, respectively. No statistically significant differences in the thoracic erector spinae EMD were found between the different postures. Lumbar erector spinae EMD was significantly longer in the sitting (94.1 ms) compared to the standing (69.9 ms) condition, with no differences compared to kneeling (79.7 ms). There were no statistically significant differences of the thoracic or lumbar erector spinae EMDs before and after dynamic stretching. These results suggest that dynamic stretching does not affect the mechanical behavior of the muscle-tendon-aponeurosis units in a way that alters force generation and transmission, but a sitting posture can alter how force is transmitted through the musculotendinous complex of the lumbar erector spinae.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":"39 3","pages":"179-183"},"PeriodicalIF":1.4,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9521271","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
Lower Extremity Inverse Kinematics Results Differ Between Inertial Measurement Unit- and Marker-Derived Gait Data. 下肢逆运动学结果不同于惯性测量单元和标记派生的步态数据。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-06-01 DOI: 10.1123/jab.2022-0194
Jocelyn F Hafer, Julien A Mihy, Andrew Hunt, Ronald F Zernicke, Russell T Johnson
{"title":"Lower Extremity Inverse Kinematics Results Differ Between Inertial Measurement Unit- and Marker-Derived Gait Data.","authors":"Jocelyn F Hafer,&nbsp;Julien A Mihy,&nbsp;Andrew Hunt,&nbsp;Ronald F Zernicke,&nbsp;Russell T Johnson","doi":"10.1123/jab.2022-0194","DOIUrl":"https://doi.org/10.1123/jab.2022-0194","url":null,"abstract":"<p><p>In-lab, marker-based gait analyses may not represent real-world gait. Real-world gait analyses may be feasible using inertial measurement units (IMUs) in combination with open-source data processing pipelines (OpenSense). Before using OpenSense to study real-world gait, we must determine whether these methods estimate joint kinematics similarly to traditional marker-based motion capture (MoCap) and differentiate groups with clinically different gait mechanics. Healthy young and older adults and older adults with knee osteoarthritis completed this study. We captured MoCap and IMU data during overground walking at 2 speeds. MoCap and IMU kinematics were computed with OpenSim workflows. We tested whether sagittal kinematics differed between MoCap and IMU, whether tools detected between-group differences similarly, and whether kinematics differed between tools by speed. MoCap showed more anterior pelvic tilt (0%-100% stride) and joint flexion than IMU (hip: 0%-38% and 61%-100% stride; knee: 0%-38%, 58%-89%, and 95%-99% stride; and ankle: 6%-99% stride). There were no significant tool-by-group interactions. We found significant tool-by-speed interactions for all angles. While MoCap- and IMU-derived kinematics differed, the lack of tool-by-group interactions suggests consistent tracking across clinical cohorts. Results of the current study suggest that IMU-derived kinematics with OpenSense may enable reliable evaluation of gait in real-world settings.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":"39 3","pages":"133-142"},"PeriodicalIF":1.4,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9512623","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: 2
Inertial Sensor-Based Estimation of Temporal Events in Skating Sub-Techniques While In-Field Roller Skiing. 基于惯性传感器的现场轮滑滑子技术时间事件估计。
IF 1.4 4区 医学
Journal of Applied Biomechanics Pub Date : 2023-06-01 DOI: 10.1123/jab.2022-0073
Frédéric Meyer, Magne Lund-Hansen, Jan Kocbach, Trine M Seeberg, Øyvind B Sandbakk, Andreas Austeng
{"title":"Inertial Sensor-Based Estimation of Temporal Events in Skating Sub-Techniques While In-Field Roller Skiing.","authors":"Frédéric Meyer,&nbsp;Magne Lund-Hansen,&nbsp;Jan Kocbach,&nbsp;Trine M Seeberg,&nbsp;Øyvind B Sandbakk,&nbsp;Andreas Austeng","doi":"10.1123/jab.2022-0073","DOIUrl":"https://doi.org/10.1123/jab.2022-0073","url":null,"abstract":"<p><p>The aim of this study was to test and adapt a treadmill-developed method for determination of inner-cycle parameters and sub-technique in cross-country roller ski skating for a field application. The method is based on detecting initial and final ground contact of poles and skis during cyclic movements. Eleven athletes skied 4 laps of 2.5 km at low- and high-endurance intensities, using 2 types of skis with different rolling coefficients. Participants were equipped with inertial measurement units attached to their wrists and skis, and insoles with pressure sensors and poles with force measurements were used as reference systems. The method based on inertial measurement units was able to detect >97% of the temporal events detected with the reference system. The inner-cycle temporal parameters had a precision ranging from 49 to 59 milliseconds, corresponding to 3.9% to 13.7% of the corresponding inner-cycle duration. Overall, this study showed good reliability of using inertial measurement units on athletes' wrists and skis to determine temporal events, inner-cycle parameters, and the performed sub-techniques in cross-country roller ski skating in field conditions.</p>","PeriodicalId":54883,"journal":{"name":"Journal of Applied Biomechanics","volume":"39 3","pages":"204-208"},"PeriodicalIF":1.4,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9520375","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: 1
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