
Ryu Nagahara
@r_nagahara
National Institute of Fitness and Sports in Kanoya.
ID: 849554289899057152
05-04-2017 09:28:21
249 Tweet
1,1K Followers
79 Following



Such a must read article ๐ฌโ Low horizontal force production during sprintingโก๏ธ= potential risk factor of hamstring injury โ ๏ธ โฝ๏ธ Johan Lahti, PhD JB Morin Ryu Nagahara Pascal EDOUARD Pierre Samozino mdpi.com/1660-4601/18/1โฆ




๐จNew Paper Alert๐จ Be careful how you calculate ratio of forces (impulses) or how you interpret it from other studies - the method used matters! sciencedirect.com/science/articlโฆ ย Great team effort from Steffi Colyer Ryu Nagahara Helen Bayne Dr Ian Bezodis ๐๐บ๐ฆ JB Morin Pierre Samozino


๐จ NEW PAPER ๐จ Sprint acceleration performance๐โโ๏ธ and mechanical macroscopic outputs detailed analysis by Pierre Samozino & al. ๐๐ฌ LIBM Beyond "just" split times, towards a more individual diagnosis of performance & mechanical profile ๐researchgate.net/publication/35โฆ


๐จFunded PhD: sprint ๐โโ๏ธโก๏ธmechanics & physiology You have or will (by June22) MSc, strong background in these topics and want to study w/ J rossi & me Universitรฉ Jean Monnet Saint-รtienne LIBM? ๐งme CV๐ for contact ๐: ๐ถ to be โ or๐ซ by Mayโ ๏ธ ๐ฉ๐ปโ๐selected June-July ๐ฌstarts Sept-Oct ๐๐

๐จNew sprint accel paper in Journal of Sports Sciences ๐จ Congrats to @dannking98 on his first paper! We know ratio of forces (RF) is important for accel, but are there any kinematic features which relate to higher RF over the initial steps after block clearance? ๐โโ๏ธ๐ง๐ tandfonline.com/doi/full/10.10โฆ

Ryu Nagahara new study on 44 female and 102 male sprinters (performed 60-m sprints on force platforms). Interesting results distinguishing performance level! ๐ pubmed.ncbi.nlm.nih.gov/37805986/ #sprintperformance

๐๐จ๐ซ๐ฆ๐๐ญ๐ข๐ฏ๐ ๐ฌ๐ฉ๐๐ญ๐ข๐จ๐ญ๐๐ฆ๐ฉ๐จ๐ซ๐๐ฅ ๐๐ง๐ ๐ ๐ซ๐จ๐ฎ๐ง๐ ๐ซ๐๐๐๐ญ๐ข๐จ๐ง ๐๐จ๐ซ๐๐ ๐๐๐ญ๐ ๐๐จ๐ซ ๐๐๐ฆ๐๐ฅ๐ ๐๐ง๐ ๐ฆ๐๐ฅ๐ #sprinting ๐ via Ryu Nagahara ๐๐ tandfonline.com/doi/full/10.10โฆ

Rates of ground reaction force development are associated with running speed during sprint acceleration - Ryu Nagahara, Olivier Girard, Paul-Axel Messou, 2024 journals.sagepub.com/doi/10.1177/17โฆ

๐จNEW PAPER๐จ Tailored overload conditions to optimize sprint performance across all acceleration phases Phase-Specific sprint exposure โก๏ธstepโก๏ธforceโก๏ธsprint phaseโก๏ธtraining Ryu Nagahara Adriรกn Castaรฑo Frontiers - Sports and Active Living frontiersin.org/journals/sportโฆ


Very interesting study on resisted sprint by Pedro Jimรฉnez-Reyes et al. good using a "phase-specific approach" ๐ก Good to see the standard of "%Velocity decrease" getting more and more attention โ Open access ๐๐ฌ frontiersin.org/journals/sportโฆ

โซ๏ธ RIP Ralph Mann ๐บ๐ธ 1949-2025, 75 ๐ง World Record 440y hurdles 48.8 Des Moines 1970 ๐ฅ 400H Olympics 1972 ๐ฌ 1971 Bachelor of Science 1975 PhD Biomechanics, Sci advisor ๐บ๐ธ until now, ๐จ๐ณ in recent years 1982 developed a patent for overlaying actual and optimal movement videos



Ryu Nagahara is back with a new interesting sprint publication "Pelvic list strength test as an indicator of sprint running performance" pubmed.ncbi.nlm.nih.gov/40094469/