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Classifying Impact Loading Using Axial Peak Tibial Acceleration and Impact-Related Biomechanical Differences During Treadmill Running.
Scand J Med Sci Sports
January 2025
Faculty of Medicine, Health, and Human Sciences, Macquarie University, Sydney, New South Wales, Australia.
Measuring lower extremity impact acceleration is a common strategy to identify runners with increased injury risk. However, existing axial peak tibial acceleration (PTA) thresholds for determining high-impact runners typically rely on small samples or fixed running speeds. This study aimed to describe the distribution of axial PTA among runners at their preferred running speed, determine an appropriate adjustment for investigating impact magnitude at different speeds, and compare biomechanics between runners classified by impact magnitude.
View Article and Find Full Text PDFThe influence of foot muscles exercises and minimalist shoes on lactate threshold velocity in long-distance amateur runners: a randomized controlled trial.
Sci Rep
July 2024
Institute of Clinical Rehabilitation, University of Physical Education, Al. Jana Pawla II 78, 31-571, Krakow, Poland.
The exercises of plantar foot muscles may have beneficial effects on the performance of the lower extremity muscles. The aim of this study was to compare two methods of foot muscle strengthening: direct short foot muscle exercises and indirect activation through training in minimalist footwear in regard to influence on lactate threshold velocity in long-distance runners. 55 recreational runners aged 21-45 years took part in that study.
View Article and Find Full Text PDFComparative Effects of Advanced Footwear Technology in Track Spikes and Road-Racing Shoes on Running Economy.
Int J Sports Physiol Perform
July 2024
School of Kinesiology, University of Michigan, Ann Arbor, MI, USA.
Purpose: Determine the effects of advanced footwear technology (AFT) in track spikes and road-racing shoes on running economy (RE).
Methods: Four racing shoes (3 AFT and 1 control) and 3 track spikes (2 AFT and 1 control) were tested in 9 male distance runners on 2 visits. Shoes were tested in a random sequence over 5-minute trials on visit 1 (7 trials at 16 km·h-1; 5-min rest between trials) and in the reverse/mirrored order on visit 2.
Effects of gait retraining using minimalist shoes on the medial gastrocnemius muscle-tendon unit behavior and dynamics during running.
Scand J Med Sci Sports
April 2024
Key Laboratory of Exercise and Health Sciences of Ministry of Education, Shanghai University of Sport, Shanghai, China.
The effects of a 12-week gait retraining program on the adaptation of the medial gastrocnemius (MG) and muscle-tendon unit (MTU) were investigated. 26 runners with a rearfoot strike pattern (RFS) were randomly assigned to one of two groups: gait retraining (GR) or control group (CON). MG ultrasound images, marker positions, and ground reaction forces (GRF) were collected twice during 9 km/h of treadmill running before and after the intervention.
View Article and Find Full Text PDFAcute effects of negative heel shoes on perceived pain and knee biomechanical characteristics of runners with patellofemoral pain.
J Foot Ankle Res
March 2024
Department of Sports Biomechanics, Beijing Sport University, Beijing, China.
Article Synopsis
- The study investigates how negative heel shoes impact pain perception and knee mechanics in runners with patellofemoral pain (PFP) during running.
- Sixteen runners experienced both negative (-11 mm) and positive (5 mm) heel shoes while their pain levels and knee dynamics were measured using various advanced techniques.
- Results indicated that running in negative heel shoes reduced peak patellofemoral joint stress, which could potentially lower knee joint loading and decrease the risk of worsening PFP.
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