Unstable rocker shoes promote recovery from marathon-induced muscle damage in novice runners

Scandinavian Journal of Medicine & Science in Sports
Kento NakagawaKazuyuki Kanosue

Abstract

We recently reported that wearing unstable rocker shoes (Masai Barefoot Technology: MBT) may enhance recovery from marathon race-induced fatigue. However, this earlier study only utilized a questionnaire. In this study, we evaluated MBT utilizing objective physiological measures of recovery from marathon-induced muscle damages. Twenty-five university student novice runners were divided into two groups. After running a full marathon, one group wore MBT shoes (MBT group), and the control group (CON) wore ordinary shoes daily for 1 week following the race. We measured maximal isometric joint torque, muscle hardness (real time tissue elastography of the strain ratio) in the lower limb muscles before, immediately after, and 1, 3, and 8 days following the marathon. We calculated the magnitude of recovery by observing the difference in each value between the first measurement and the latter measurements. Results showed that isometric torques in knee flexion recovered at the first day after the race in the MBT group while it did not recover even at the eighth day in the CON group. Muscle hardness in the gastrocnemius and vastus lateralis showed enhanced recovery in the MBT group in comparison with the CON group. Also for muscle hardnes...Continue Reading

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Citations

Oct 16, 2018·The Journal of Sports Medicine and Physical Fitness·Takayuki InamiMitsuyoshi Murayama
Jun 26, 2020·PloS One·Ayako HigashiharaNorikazu Hirose
Feb 27, 2018·Journal of Strength and Conditioning Research·Takayuki InamiTakaya Narita
Jun 17, 2020·European Journal of Sport Science·Ignacio Martínez-NavarroCarlos Hernando

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