Science of Multi-Directional Speed

This is Science of Multi-Directional Speed. We provide the most cutting-edge and empirically-driven resources centred around change of direction, deceleration, agility, sprinting, and more. Follow the link below to explore us on our platforms!🏃👨‍🏫 🔗 sciofmultispeed.com/welcome

The Importance, Challenges, and Developments of Biomechanical Load Measurements in Multidirectional Sports. 🔗 sciofmultispeed.com/the-importance… FIGURE 4| Two examples of structural load measurement devices that are field-viable. Left:  a shear wave tensiometer for directly measuring patellar and achilles tendon forces (taken from martin et al., 2018). Right: ankle-worn blue trident inertial measurement units to measure tibial acceleration (Vicon, 2020). Author: Jasper Verheul 🧑‍🏫 #Biomechanics #Sprinting #Technology #Performance #SportsScience #Injury #Fatigue #Force

The Importance, Challenges, and Developments of Biomechanical Load Measurements in Multidirectional Sports 🔗 sciofmultispeed.com/the-importance… FIGURE 3| An example of in vitro mechanical testing for bone samples exposed to various running-specific loading profiles (Loundagin et al., 2018). Left: four distinct loading profiles were applied to bone samples. These four stress loading profiles included: a typical vertical ground reaction force profile for running (raw); an isolated active peak profile (active); an isolated impact peak profile (high impact); and an isolated reduced impact peak profile (low impact). Right: the number of loading cycles until the bone tissue failed for each loading profile. Adapted from Loundagin et al. (2018). Author: Jasper Verheul 🧑‍🏫 #Biomechanics #Sprinting #Hamstrings #Performance #SportsScience #Injury

The Importance, Challenges, and Developments of Biomechanical Load Measurements in Multidirectional Sports 🔗 sciofmultispeed.com/the-importance… FIGURE 2 | Overview of biomechanical load metrics. The feasibility of measuring various load metrics is indicated on the y-axis, and ranges from limited to the laboratory only, to viable in field environments. The level at which loads act on the musculoskeletal system is indicated along the x-axis, and include the tissue, structural, and whole-body level. Adapted from Verheul et al. (2020). Author: Jasper Verhuel 🧑‍🏫 #Biomechanics #Physiological #Musculoskeletal #Cardiovascular #Performance #SportsScience #Performance

The Importance, Challenges, and Developments of Biomechanical Load Measurements in Multidirectional Sports 🔗 sciofmultispeed.com/the-importance… FIGURE 1 | Schematic representation of the distinct physiological loads and adaptations of the cardiovascular system, and the biomechanical loads and adaptations of the musculoskeletal system. Based on and adapted from Vanrenterghem et al. (2017). Author: Jasper Verheul 🧑‍🏫 #Biomechanics #Physiological #Musculoskeletal #Cardiovascular #Performance #SportsScience #Performance

📢Our Blog is Live! The Importance, Challenges, and Developments of Biomechanical Load Measurements in Multidirectional Sports🏃🏽 In this blog we explore: 🦵🏽Biomechanical loads and load-adaptation pathways 📲Emerging technologies and future directions for field-based monitoring 🎯The values and limitations of biomechanical load metrics 🔗sciofmultispeed.com/the-importance… ✍🏽 Jasper Verheul

Effects of Fatigue Induced by Sprinting on Biomechanics and Potential Hamstring Injury Risk. 🔗 lnkd.in/expCtkFt Figure 9| Hamstring related performance changes post repeated sprints (A) and individual pelvic movement changes (B). Adapted from Carmona et al. 24. MVIC: Maximal voluntary isometric contraction (90:20), ROM: Range of motion, F0: Maximal theoretical horizontal force, V0: Maximal theoretical horizontal velocity. Author: @lahti_johan #Biomechanics #Sprinting #Hamstrings #Performance #Injury #Fatigue #Recovery

Effects of Fatigue Induced by Sprinting on Biomechanics and Potential Hamstring Injury Risk. 🔗sciofmultispeed.com/effects-of-fat… Figure 8| The relationship between creatine kinase recovery and gastrocnemius stretch reflex recovery from a fatiguing SSC task Author: @lahti_johan 🧑‍🏫 #Biomechanics #Sprinting #Hamstrings #Performance #SportsScience #Injury #Fatigue #Recovery

Effects of Fatigue Induced by Sprinting on Biomechanics and Potential Hamstring Injury Risk. 🔗 sciofmultispeed.com/effects-of-fat… Figure 7| GRF and kinematic changes during stance at maximal velocity from one participant during a non-fatigued state and a fatigued state from separate studies (thus, a hypothetical scenario). Data taken with permission Author: @lahti_johan 🧑‍🏫 #Biomechanics #Sprinting #Hamstrings #Performance #SportsScience #Injury #Fatigue #Force

Effects of Fatigue Induced by Sprinting on Biomechanics and Potential Hamstring Injury Risk. 🔗sciofmultispeed.com/effects-of-fat… Figure 6| Ground Reaction Force profiles of a sprint (A) and drop jump from 50 cm, completed pre- and post a full marathon Author: @lahti_johan 🧑‍🏫 #Biomechanics #Sprinting #Hamstrings #Performance #SportsScience #Injury #Fatigue #Force

Effects of Fatigue Induced by Sprinting on Biomechanics and Potential Hamstring Injury Risk. 🔗 sciofmultispeed.com/effects-of-fat… Figure 5| Muscle energy absorption capacity during a non-fatigued and fatigued state. Author: @lahti_johan 🧑‍🏫 #Biomechanics #Sprinting #Hamstrings #Performance #SportsScience #Injury #Fatigue

Effects of Fatigue Induced by Sprinting on Biomechanics and Potential Hamstring Injury Risk. 🔗 sciofmultispeed.com/effects-of-fat… Figure 4| Typical traces of fatigue seen in SSC studies from different variables, adapted from Nicol et al. All measurements are done on the triceps surae and fatigue tested in hopping. EMG: electromyography, MVIC: maximal voluntary isometric contraction. Author: @lahti_johan #Biomechanics #Sprinting #Hamstrings #Performance #SportsScience #Injury #Fatigue

Effects of Fatigue Induced by Sprinting on Biomechanics and Potential Hamstring Injury Risk. 🔗sciofmultispeed.com/effects-of-fat… FIGURE 3| Progression of SSC fatigue. Adapted from Komi et al. RFD: Rate of force development, MVC: Maximal voluntary contraction. ⚡️ Author: @lahti_johan 🧑‍🏫 #Biomechanics #Sprinting #Hamstrings #Performance #SportsScience #Fatigue #Force

Effects of Fatigue Induced by Sprinting on Biomechanics and Potential Hamstring Risk Injury. FIGURE 2 | Distribution of hamstring injuries in football during the first and second half. A) Distribution of hamstring injuries, B) distribution of Biceps Femoris LH, Semitendinosus, and Semimembranosus injuries. 🦵🏽⚽️ Author: @lahti_johan 🔗 sciofmultispeed.com/effects-of-fat… #Biomechanics #Sprinting #Hamstrings #Performance #SportsScience #Injury

✅NEW BLOG! Effects of Fatigue Induced by Sprinting on Biomechanics and Potential Hamstring Risk Injury. FIGURE 1 | Hip and Knee joint power (A) and hamstring MTU length (B) during maximal sprinting 🏃🏽 Author: @lahti_johan ✍🏽 🔗lnkd.in/expCtkFt #Biomechanics #Sprinting #Hamstrings #Performance #SportsScience