Pub Date : 2023-06-30DOI: 10.1080/19424280.2023.2199407
Reyna C. Crawford, J. Wannop, D. Stefanyshyn
In many sports, it is imperative to have the ability to quickly change directions, whilst avoiding injury. Faster changes of direction can be facilitated through greater horizontal ground reaction forces (GRF) and greater horizontal to vertical GRF ratios (H/V ratio). Research has shown that these results are attainable with a laterally banked surface (Wannop et al., 2014). In addition to performance, a lateral bank has the potential to restrict dangerous ankle range of motions, thus reducing a risk factor for inversion ankle sprain injuries. To incorporate a laterally banked surface into a sport setting, lateral wedged insoles can be placed inside footwear, to mimic the structure of a banked surface.
在许多运动中，快速改变方向，同时避免受伤的能力是必不可少的。较大的水平地面反作用力(GRF)和较大的水平与垂直地面反作用力比(H/V比)可以促进更快的方向变化。研究表明，这些结果可以通过侧向倾斜的表面实现(Wannop et al.， 2014)。除了性能外，侧侧卧有可能限制危险的踝关节活动范围，从而减少踝关节内翻扭伤损伤的风险因素。为了将侧向倾斜的表面纳入运动环境，侧向楔形鞋垫可以放置在鞋类内部，以模仿倾斜表面的结构。
{"title":"The influence of lateral wedged insoles on performance and ankle joint biomechanics of lateral movements","authors":"Reyna C. Crawford, J. Wannop, D. Stefanyshyn","doi":"10.1080/19424280.2023.2199407","DOIUrl":"https://doi.org/10.1080/19424280.2023.2199407","url":null,"abstract":"In many sports, it is imperative to have the ability to quickly change directions, whilst avoiding injury. Faster changes of direction can be facilitated through greater horizontal ground reaction forces (GRF) and greater horizontal to vertical GRF ratios (H/V ratio). Research has shown that these results are attainable with a laterally banked surface (Wannop et al., 2014). In addition to performance, a lateral bank has the potential to restrict dangerous ankle range of motions, thus reducing a risk factor for inversion ankle sprain injuries. To incorporate a laterally banked surface into a sport setting, lateral wedged insoles can be placed inside footwear, to mimic the structure of a banked surface.","PeriodicalId":45905,"journal":{"name":"Footwear Science","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42341516","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.1080/19424280.2023.2205648
J. Mattock, J. Steele, K. Mickle
Fewer years of running experience and a more pronated foot type are common risk factors associated with medial tibial stress syndrome (MTSS). These risk factors are thought to contribute to earlier fatigue of the antipronatory foot muscles, greater foot pronation, increased tibial loading and MTSS development (Boer et al., 2023). Following a half marathon race, the feet of 30 runner’s (median age: 35 years) were significantly more pronated (p< 0.001) than pre-race (Cowley & Marsden, 2013). Conversely, novice (21 ± 1 years) runners displayed no difference in foot pronation compared to competitive (22 ± 4 years) runners after a fatiguing protocol (Maas et al., 2018). Age is reported to influence foot posture (Redmond et al., 2008), and runners aged 31–40 years have a higher prevalence of MTSS than those aged <30 years (Boer et al., 2023). It is, therefore, necessary to assess factors that could contribute to MTSS, such as running experience and foot function, in the cohort primarily at risk.
较少的跑步经验和更多的内旋足类型是与内侧胫骨应激综合征(MTSS)相关的常见危险因素。这些风险因素被认为会导致抗旋前足肌肉的早期疲劳、足部更大的旋前、胫骨负荷的增加和MTSS的发展(Boer等，2023)。在半程马拉松比赛后，30名跑步者(中位年龄:35岁)的脚比赛前明显内翻(p< 0.001) (Cowley & Marsden, 2013)。相反，新手(21±1年)跑步者与竞技选手(22±4年)跑步者在疲劳训练后的足内旋没有差异(Maas et al.， 2018)。据报道，年龄会影响足部姿势(Redmond et al.， 2008)， 31-40岁的跑步者比30岁以下的跑步者有更高的MTSS患病率(Boer et al.， 2023)。因此，有必要评估可能导致MTSS的因素，如跑步经验和足部功能，在主要风险队列中。
{"title":"Does running experience influence static and dynamic measures of foot function?","authors":"J. Mattock, J. Steele, K. Mickle","doi":"10.1080/19424280.2023.2205648","DOIUrl":"https://doi.org/10.1080/19424280.2023.2205648","url":null,"abstract":"Fewer years of running experience and a more pronated foot type are common risk factors associated with medial tibial stress syndrome (MTSS). These risk factors are thought to contribute to earlier fatigue of the antipronatory foot muscles, greater foot pronation, increased tibial loading and MTSS development (Boer et al., 2023). Following a half marathon race, the feet of 30 runner’s (median age: 35 years) were significantly more pronated (p< 0.001) than pre-race (Cowley & Marsden, 2013). Conversely, novice (21 ± 1 years) runners displayed no difference in foot pronation compared to competitive (22 ± 4 years) runners after a fatiguing protocol (Maas et al., 2018). Age is reported to influence foot posture (Redmond et al., 2008), and runners aged 31–40 years have a higher prevalence of MTSS than those aged <30 years (Boer et al., 2023). It is, therefore, necessary to assess factors that could contribute to MTSS, such as running experience and foot function, in the cohort primarily at risk.","PeriodicalId":45905,"journal":{"name":"Footwear Science","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45504747","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.1080/19424280.2023.2199400
Julian Fritz, Melanie Knopp, Harry Miles, Daniel Ruiz, Aaron Martínez, T. Stoeggl, Sasa Cigoja
With increasing popularity and due to the performance altering relevance of equipment, trail running has become of particular interest for the sporting goods industry. Research has shown that especially downhill running (DR) plays a decisive role in trail running performance (Genitrini et al., 2022). An athlete’s running velocity at _ VO2 max, lower body strength and leg stiffness (kleg) were identified to be adequate predictors of DR performance (Lemire et al., 2021). Kleg can be influenced by the midsole cushioning stiffness (kshoe) as shown during level running (LR) conditions by Kulmala et al. (2018). However, it remains unclear if kleg can also be influenced by altered kshoe during DR and thus positively influence DR performance.
{"title":"Effects of midsole cushioning on biomechanical and physiological performance measures in an elite ultra-trail runner: a case study","authors":"Julian Fritz, Melanie Knopp, Harry Miles, Daniel Ruiz, Aaron Martínez, T. Stoeggl, Sasa Cigoja","doi":"10.1080/19424280.2023.2199400","DOIUrl":"https://doi.org/10.1080/19424280.2023.2199400","url":null,"abstract":"With increasing popularity and due to the performance altering relevance of equipment, trail running has become of particular interest for the sporting goods industry. Research has shown that especially downhill running (DR) plays a decisive role in trail running performance (Genitrini et al., 2022). An athlete’s running velocity at _ VO2 max, lower body strength and leg stiffness (kleg) were identified to be adequate predictors of DR performance (Lemire et al., 2021). Kleg can be influenced by the midsole cushioning stiffness (kshoe) as shown during level running (LR) conditions by Kulmala et al. (2018). However, it remains unclear if kleg can also be influenced by altered kshoe during DR and thus positively influence DR performance.","PeriodicalId":45905,"journal":{"name":"Footwear Science","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47544040","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.1080/19424280.2023.2199390
Ales Jurca, S. Džeroski
The fit of a shoe is an important shoe comfort factor. Foot length and width are two of the most important measurements that influence fit (Miller et al., 2000). Incorrectly fitted footwear contributes to the development of foot disorders. Studies have shown that 63–72% of participants were wearing incorrectly fitted shoes based on length and width (Buldt & Menz, 2018). However, these studies used many different ways of assessing footwear fit. Footwear brands provide size charts to help selecting the right size.
{"title":"Foot length and width variety of shoppers who purchased the same style and size of running shoes","authors":"Ales Jurca, S. Džeroski","doi":"10.1080/19424280.2023.2199390","DOIUrl":"https://doi.org/10.1080/19424280.2023.2199390","url":null,"abstract":"The fit of a shoe is an important shoe comfort factor. Foot length and width are two of the most important measurements that influence fit (Miller et al., 2000). Incorrectly fitted footwear contributes to the development of foot disorders. Studies have shown that 63–72% of participants were wearing incorrectly fitted shoes based on length and width (Buldt & Menz, 2018). However, these studies used many different ways of assessing footwear fit. Footwear brands provide size charts to help selecting the right size.","PeriodicalId":45905,"journal":{"name":"Footwear Science","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49078616","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.1080/19424280.2023.2199286
Fu Fengqin, Huan-Huan Meng, Yu-Xi Wang, S. Jia, Fan Yang
Running performance is the primary consideration for elite runners. Track shoes such as the Nike Vaporfly 4% shoe combine both advances in midsole thickness and longitudinal bending stiffness to reduce energy loss by about 4% for elite runners (H ebert-Losier et al., 2020). It was noted that changes contact area of rearfoot or striking patterns adjust the running mode during the stance phase, such as multi-segment foot kinematics during running (Deschamps et al., 2019). Brown (Brown & Silva, 2013) found that shoes with 8mm drops will benefit the storage and energy return due to the increase of the angle of the phalangeal joint of the sagittal plane compared to running shoes with 8mm drops for amateur runners. However, little research has investigated the effect of marathon running shoes with negative drops on the sports biomechanics of elite runners.
{"title":"Effect of the racing shoes with the special heel structure on the elite runners’ lower limb biomechanics","authors":"Fu Fengqin, Huan-Huan Meng, Yu-Xi Wang, S. Jia, Fan Yang","doi":"10.1080/19424280.2023.2199286","DOIUrl":"https://doi.org/10.1080/19424280.2023.2199286","url":null,"abstract":"Running performance is the primary consideration for elite runners. Track shoes such as the Nike Vaporfly 4% shoe combine both advances in midsole thickness and longitudinal bending stiffness to reduce energy loss by about 4% for elite runners (H ebert-Losier et al., 2020). It was noted that changes contact area of rearfoot or striking patterns adjust the running mode during the stance phase, such as multi-segment foot kinematics during running (Deschamps et al., 2019). Brown (Brown & Silva, 2013) found that shoes with 8mm drops will benefit the storage and energy return due to the increase of the angle of the phalangeal joint of the sagittal plane compared to running shoes with 8mm drops for amateur runners. However, little research has investigated the effect of marathon running shoes with negative drops on the sports biomechanics of elite runners.","PeriodicalId":45905,"journal":{"name":"Footwear Science","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47074711","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.1080/19424280.2023.2218664
Maddison M. Kirk, J. Mattock, C. Coltman, J. Steele
Netball is a popular court sport played by an estimated 20 million people across 80 countries (INF, 2021). Although females predominantly play netball, there are a growing number of males playing the sport. Netball requires players to perform rapid accelerations, direction changes, and frequent jumping (Steele & Milburn, 1987). These skills can place high stress on the lower extremity, and consequently, there is a high prevalence of foot-related problems and injuries in the sport (Steele, 1990; Kirk et al., 2022). Netball-specific shoes provide protection and support to the foot during such dynamic movements. Despite the importance of appropriate footwear, many netball players, particularly men, do not wear shoes designed for the sport (Kirk et al., 2022). Instead, players wear running, basketball, or tennis shoes, with females 13.2 times more likely to wear netball-specific shoes than men (Kirk et al., 2022). The high prevalence of footrelated problems and a preference to wear other shoe types suggests that current netball shoes are not meeting the fit and functionality requirements of players.
{"title":"Are netball players satisfied with their shoes?","authors":"Maddison M. Kirk, J. Mattock, C. Coltman, J. Steele","doi":"10.1080/19424280.2023.2218664","DOIUrl":"https://doi.org/10.1080/19424280.2023.2218664","url":null,"abstract":"Netball is a popular court sport played by an estimated 20 million people across 80 countries (INF, 2021). Although females predominantly play netball, there are a growing number of males playing the sport. Netball requires players to perform rapid accelerations, direction changes, and frequent jumping (Steele & Milburn, 1987). These skills can place high stress on the lower extremity, and consequently, there is a high prevalence of foot-related problems and injuries in the sport (Steele, 1990; Kirk et al., 2022). Netball-specific shoes provide protection and support to the foot during such dynamic movements. Despite the importance of appropriate footwear, many netball players, particularly men, do not wear shoes designed for the sport (Kirk et al., 2022). Instead, players wear running, basketball, or tennis shoes, with females 13.2 times more likely to wear netball-specific shoes than men (Kirk et al., 2022). The high prevalence of footrelated problems and a preference to wear other shoe types suggests that current netball shoes are not meeting the fit and functionality requirements of players.","PeriodicalId":45905,"journal":{"name":"Footwear Science","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48615948","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.1080/19424280.2023.2199261
M. Esposito, J. Wannop, D. Stefanyshyn
Forefoot bending stiffness has been shown to influence both injury and performance. Regarding performance, specifically sprinting, research has shown increased bending stiffness resulted in improved performance (Stefanyshyn and Fusco, 2004). However, there is evidence suggesting increased bending stiffness has detrimental effects on performance during the acceleration phase of sprinting (Willwacher et al., 2016). Previous research has suggested a carbon fibre plate with a non-linear bending stiffness profile might negate the detrimental effects during sprint acceleration (Wannop et al., 2017).
{"title":"The influence on a non-linear bending stiffness profile on sprint acceleration performance and MTP biomechanics","authors":"M. Esposito, J. Wannop, D. Stefanyshyn","doi":"10.1080/19424280.2023.2199261","DOIUrl":"https://doi.org/10.1080/19424280.2023.2199261","url":null,"abstract":"Forefoot bending stiffness has been shown to influence both injury and performance. Regarding performance, specifically sprinting, research has shown increased bending stiffness resulted in improved performance (Stefanyshyn and Fusco, 2004). However, there is evidence suggesting increased bending stiffness has detrimental effects on performance during the acceleration phase of sprinting (Willwacher et al., 2016). Previous research has suggested a carbon fibre plate with a non-linear bending stiffness profile might negate the detrimental effects during sprint acceleration (Wannop et al., 2017).","PeriodicalId":45905,"journal":{"name":"Footwear Science","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45970108","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.1080/19424280.2023.2199393
Herlandt Lino, Damion Perry, Montgomery Bertschy, Mark A. Price, W. Hoogkamer
The emergence of advanced footwear technology (AFT) has dramatically altered the world of distance running. Shoes featuring precise combinations of materials and geometry, centering around a stiff curved carbon fibre plate with a thick midsole comprised of highly compliant and resilient foam, have been shown to influence running economy. For instance, the Nike Vaporfly 4% was so named because of findings by Hoogkamer et al. (2018) that showed a 4% improvement in running economy. Further, the 4% improvement in running economy has resulted in a 2.3% improvement in elite marathon performance in men and women (Senefeld et al., 2021). However, previous literature has not been able to distinguish between shoe features while comparing across different shoes leaving the magnitude and mechanism behind the improvement in running performance unclear.
先进的鞋类技术(AFT)的出现极大地改变了长跑的世界。以材料和几何形状的精确组合为特色的鞋子，以坚硬弯曲的碳纤维板为中心，由高度顺应和弹性泡沫组成的厚中底，已被证明可以影响跑步经济性。例如，Nike Vaporfly 4%之所以如此命名，是因为Hoogkamer等人(2018年)的研究结果显示，跑步经济性提高了4%。此外，跑步经济性提高4%导致男女精英马拉松成绩提高2.3% (senfeld et al.， 2021)。然而，以前的文献在比较不同的鞋子时，并不能区分鞋子的特征，这使得跑步性能改善的幅度和机制不清楚。
{"title":"Effects of longitudinal bending stiffness and midsole foam on running energetics and biomechanics","authors":"Herlandt Lino, Damion Perry, Montgomery Bertschy, Mark A. Price, W. Hoogkamer","doi":"10.1080/19424280.2023.2199393","DOIUrl":"https://doi.org/10.1080/19424280.2023.2199393","url":null,"abstract":"The emergence of advanced footwear technology (AFT) has dramatically altered the world of distance running. Shoes featuring precise combinations of materials and geometry, centering around a stiff curved carbon fibre plate with a thick midsole comprised of highly compliant and resilient foam, have been shown to influence running economy. For instance, the Nike Vaporfly 4% was so named because of findings by Hoogkamer et al. (2018) that showed a 4% improvement in running economy. Further, the 4% improvement in running economy has resulted in a 2.3% improvement in elite marathon performance in men and women (Senefeld et al., 2021). However, previous literature has not been able to distinguish between shoe features while comparing across different shoes leaving the magnitude and mechanism behind the improvement in running performance unclear.","PeriodicalId":45905,"journal":{"name":"Footwear Science","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47325540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.1080/19424280.2023.2199267
Dimitri Ferre Sentis, G. Andre
Slipping-related falls are a prevalent source of injuries that have driven the development of various experimental devices to assess the slip resistance of footwear products. These devices are useful for testing existing solutions and identifying the most suitable products for a specific use. During a slip event, the mechanical loadings undergone by the outsole material are generally strongly heterogeneous, leading to a coupling between the stud geometry and the material mechanical behaviour (Jones et al., 2018). Most of the previous studies emphasize the role of the viscoelastic properties on the slip resistance but the experiments are often performed using commercially available footwear products with a large range of outsoles geometry and materials; making the conclusion difficult to generalize. More specifically, the exact solicitations frequencies applied on the outsole are still unknown, hindering the identification of the targeted material properties for optimizing the slip resistance of the outsoles. Among the challenges to overcome to optimize the slip resistance of the shoes, finely identifying the aforementioned properties is a critical issue and requires isolating the contribution of the material from the geometry of the outsole.
{"title":"Grip mechanisms and mechanical characterization of outsole materials: towards shoe slip resistance prediction","authors":"Dimitri Ferre Sentis, G. Andre","doi":"10.1080/19424280.2023.2199267","DOIUrl":"https://doi.org/10.1080/19424280.2023.2199267","url":null,"abstract":"Slipping-related falls are a prevalent source of injuries that have driven the development of various experimental devices to assess the slip resistance of footwear products. These devices are useful for testing existing solutions and identifying the most suitable products for a specific use. During a slip event, the mechanical loadings undergone by the outsole material are generally strongly heterogeneous, leading to a coupling between the stud geometry and the material mechanical behaviour (Jones et al., 2018). Most of the previous studies emphasize the role of the viscoelastic properties on the slip resistance but the experiments are often performed using commercially available footwear products with a large range of outsoles geometry and materials; making the conclusion difficult to generalize. More specifically, the exact solicitations frequencies applied on the outsole are still unknown, hindering the identification of the targeted material properties for optimizing the slip resistance of the outsoles. Among the challenges to overcome to optimize the slip resistance of the shoes, finely identifying the aforementioned properties is a critical issue and requires isolating the contribution of the material from the geometry of the outsole.","PeriodicalId":45905,"journal":{"name":"Footwear Science","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44477486","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2023-06-30DOI: 10.1080/19424280.2023.2199409
E. Farina, Rachel Wathen, Daniel Gaytan-Jenkins, Derek J. Haight, David Clark
Twenty four females of US sizes W7 W8 W9 were recruited (35.3± 7.7 yr, 65.6 ± 13.4 kg) who ran at least 2 per week. Each ran on an instrumented treadmill at her preferred pace (averaging 10:15min/mile or 2.62m/s) for three minutes in five randomized conditions. Footwear consisted of the commercial Nike: Structure 22, Pegasus 36, Infinity React, Invincible ZoomX, and Vaporfly NEXT%. A size W8 sampling defined a large range in mechanical properties under custom loading: 232N/mm down to 133N/mm in compression stiffness and 7.0Nm/rad up to 15.1Nm/rad in longitudinal bending stiffness. Pelvisdown kinematics and underfoot kinetics were collected for the last two minutes of each trial. Data were processed using V3D and python. Statistical comparisons were made using RM ANOVA with Tukey’s post-hoc (alpha 1⁄4 0.05).
{"title":"Footwear reduces and redistributes lower extremity joint work in women runners","authors":"E. Farina, Rachel Wathen, Daniel Gaytan-Jenkins, Derek J. Haight, David Clark","doi":"10.1080/19424280.2023.2199409","DOIUrl":"https://doi.org/10.1080/19424280.2023.2199409","url":null,"abstract":"Twenty four females of US sizes W7 W8 W9 were recruited (35.3± 7.7 yr, 65.6 ± 13.4 kg) who ran at least 2 per week. Each ran on an instrumented treadmill at her preferred pace (averaging 10:15min/mile or 2.62m/s) for three minutes in five randomized conditions. Footwear consisted of the commercial Nike: Structure 22, Pegasus 36, Infinity React, Invincible ZoomX, and Vaporfly NEXT%. A size W8 sampling defined a large range in mechanical properties under custom loading: 232N/mm down to 133N/mm in compression stiffness and 7.0Nm/rad up to 15.1Nm/rad in longitudinal bending stiffness. Pelvisdown kinematics and underfoot kinetics were collected for the last two minutes of each trial. Data were processed using V3D and python. Statistical comparisons were made using RM ANOVA with Tukey’s post-hoc (alpha 1⁄4 0.05).","PeriodicalId":45905,"journal":{"name":"Footwear Science","volume":null,"pages":null},"PeriodicalIF":3.0,"publicationDate":"2023-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45540868","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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