Video yükleniyor...

Video Yüklenemedi

Ana Sayfaya Dön

PAP (post-activation potentiation) or PAPE (post-activation performance enhancement -as shown here) is a really useful physiologic phenomenon This is an extremely useful physiologic phenomenon that can: 1. Enhance power based rehab & performance 2. Potentially overcome inhibition preventing quality muscle activation during rehab PAP refers to: The influence of...

24,314 görüntüleme • 2 yıl önce •via X (Twitter)

0 Yorum

Yorum bulunmuyor

Orijinal gönderinin yorumları burada görünecek

Benzer Videolar

Normalise RDL as a main movement. The Romanian Deadlift (RDL) or Heavy Barbell Hip Hinge is a powerhouse exercise that has gained a lot of popularity among strength and conditioning coaches, powerlifters, and bodybuilders alike. This movement is often called an “athlete maker" in my mind due to its ability to build strength, muscle mass, and athleticism in both men and women. One of the primary reasons why the RDL is so effective for athletes is because it is triphasic, for the uninitiated meaning it involves three distinct phases of muscle action: eccentric, isometric, and concentric. During the eccentric phase, the lifter is lowering the weight, which creates tension and stress on the muscles, leading to greater muscle damage and adaptation. The isometric phase occurs when the lifter pauses at the bottom of the lift, holding the weight in a static position, which increases the time under tension and helps to build strength and stability. Finally, during the concentric phase, the lifter raises the weight, activating the muscles in a way that promotes greater hypertrophy. Compared to a traditional deadlift off the floor, the RDL places a greater emphasis on the posterior chain, specifically the proximal hamstring, glutes, and erector spinae muscles. The lift also engages the distal hamstring muscles in a nearly fully extended position, promoting greater muscle activation and strengthening. The RDL is an excellent way to develop strength and hypertrophy in these muscle groups, leading to improved overall athletic performance, including greater power, speed, and explosiveness. Given the numerous benefits of the RDL, it should be a main movement in any training program that aims to improve strength, muscle mass, and overall athletic performance. Incorporating heavy barbell hip hinge movements, such as the RDL, into your training regimen can help to promote better posture, improved mobility, and greater overall strength and athleticism. So, whether you are a powerlifter, bodybuilder, or athlete, consider adding the RDL to your training program to take your strength and athleticism to the next level.

Coach Wayland | Performance Expert | Craftsman

227,973 görüntüleme • 3 yıl önce

𝘾𝙈𝙅 𝙖𝙣𝙙 𝙛𝙖𝙩𝙞𝙜𝙪𝙚 𝙢𝙤𝙣𝙞𝙩𝙤𝙧𝙞𝙣𝙜, 𝙬𝙝𝙚𝙣 𝙅𝙪𝙢𝙥 𝙃𝙚𝙞𝙜𝙝𝙩 (𝙘𝙢) 𝙖𝙡𝙤𝙣𝙚 𝙞𝙨 𝙣𝙤𝙩 𝙩𝙝𝙚 𝙗𝙚𝙨𝙩 𝙢𝙚𝙩𝙧𝙞𝙘 𝙩𝙤 𝙙𝙚𝙩𝙚𝙘𝙩 𝙣𝙚𝙪𝙧𝙤𝙢𝙪𝙨𝙘𝙪𝙡𝙖𝙧 𝙛𝙖𝙩𝙞𝙜𝙪𝙚 𝙞𝙣 𝙤𝙪𝙧 𝙖𝙩𝙝𝙡𝙚𝙩𝙚𝙨 👇🏼 1️⃣Jump Height and fatigue ? Not clear evidence …. Cormack et al. observed altered flight time to contraction time ratio up to 2 days after elite competition “despite little changes in jump height performance” Different movement solutions occur to maintain a desired “performance” metric such as jump height or power output Legg et al. suggested that altering CMJ mechanics assisted with maintenance of jump height while in a fatigued state, with changes in dip magnitude observed midseason despite no change in jump height. 2️⃣RSI-mod as an alternative variable ?? CMJ height alone may not always discriminate between rugby league cohorts, emphasizing the requirement for the associated underpinning force-time variables [to indicate jump ‘strategy’], or RSImod at the very least McMahon et al. reported that a group of combined professional senior SL and RLC rugby league players who performed the CMJ with a “higher RSImod” demonstrated higher force, velocity and thus power outputs. 3️⃣Sensitive to change of different metrics , Jump Height 🆚 RSI-mod? CMJ height was not sensitive to change in neuromuscular status of elite Australian Rules Football athletes pre- to post-match, from 48-hours pre- to 48-hours post-match 📌Conclusions - RSImod or FT:CT may prove more useful overall as an indicator of readiness, slow SSC activity, and neuromuscular fatigue as they impact the coordinative strategy and jumping performance. - A decline of 8% in FT:CT or RSImod would indicate a change requiring intervention as at this level of neuromuscular fatigue there are considerable changes to performance 📚 📕Hughes, S., Warmenhoven, J., Haff, G. G., Chapman, D. W., & Nimphius, S. (2022). Countermovement jump and squat jump force-time curve analysis in control and fatigue conditions. The Journal of Strength & Conditioning Research, 36(10), 2752-2761. 📗McMahon, J. J., Jones, P. A., & Comfort, P. (2022). Comparison of countermovement jump–derived reactive strength index modified and underpinning force-time variables between super league and championship rugby league players. The Journal of Strength & Conditioning Research, 36(1), 226-231. 📘Martinez, D. B. (2016). THE USE OF REACTIVE STRENGTH INDEX, REACTIVE STRENGTH INDEX MODIFIED, AND FLIGHT TIME: CONTRACTION TIME AS MONITORING TOOLS. Journal of Australian Strength & Conditioning, 24(5) 📘Bishop, C., Jordan, M., Torres-Ronda, L., Loturco, I., Harry, J., Virgile, A., ... & Comfort, P. (2023). Selecting metrics that matter: comparing the use of the countermovement jump for performance profiling, neuromuscular fatigue monitoring, and injury rehabilitation testing. Strength & Conditioning Journal, 45(5), 545-553.

Ángel Aceña Rodriguez

11,976 görüntüleme • 1 yıl önce

Say hello to Boojum 👋: zkSync Era’s new high-performance proof system for radical decentralization. Boojum is an upgrade that will transition zkSync Era to a STARK-powered proof system, providing world-class performance on consumer-grade hardware. 💡 Learn more: TL;DR 👇 Boojum is the name of our Rust-based cryptographic library, which we use to implement the upgraded version of the ZK circuits for zkSync Era and the ZK Stack. The name Boojum was inspired by Lewis Carroll's poem "The Hunting of the Snark," where the Boojum represents the most fearsome kind of Snark. We intentionally designed zkSync Era in a way that cryptographic upgrades can be made without a regenesis, meaning that the Boojum upgrade won’t cause any user disruptions. Why Boojum❓ From day one, zkSync’s mission is to advance personal freedom for all — making digital self-ownership universally accessible by building a blockchain network that is trustless, secure, permissionless, affordable, easy to use, resilient and limitlessly scalable. Boojum plays an important role in advancing this mission by delivering: 1. World-class performance zkSync Era’s current SNARK-based proof system is effective today, but it won’t scale to the volume that we envision for hyperchains. zkSync Era’s sequencer can already process over 100 TPS; Boojum orders of magnitude improvements to performance complements this well. 2. Reduced hardware requirements for decentralization Our long-term goal is to enable user-powered, decentralized proof generation. Boojum represents a breakthrough in this direction — with the prover running on consumer-grade GPUs requiring only 16 GB GPU RAM. Boojum’s Journey to Mainnet 🚴🏽‍♀️ Boojum is now live on Mainnet, generating and verifying ‘shadow proofs’ today with real production data so that we can carefully test the system ahead of fully migrating. Today, we’re also open-sourcing the repo; if you’d like to take a look, you can find it here 👇 This is the first of a series of posts on Boojum. We will provide updates on our progress, including more details on implementation, security, and performance. Watch here for more, anon ∎

ZKsync

826,823 görüntüleme • 2 yıl önce