Abstract

PurposeThe purpose of the study was to investigate the effects of using a vibration foam roll (VFR) or a non-vibration foam roll (NVFR) on maximum voluntary isometric contraction peak torque (MVIC), range of motion (ROM), passive resistive torque (PRT), and shear modulus.MethodsTwenty-one male volunteers visited the laboratory on two separate days and were randomly assigned to either a VFR group or a NVFR group. Both interventions were performed for 3 × 1 min each. Before and after each intervention, passive resistive torque and maximum voluntary isometric contraction peak torque of the leg extensors were assessed with a dynamometer. Hip extension ROM was assessed using a modified Thomas test with 3D-motion caption. Muscle shear modulus of the vastus lateralis (VL), vastus medialis (VM), and rectus femoris (RF) was assessed with shear wave elastography (SWE).ResultsIn both groups (VFR, NVFR) we observed an increase in MVIC peak torque (+ 14.2 Nm, + 8.6 Nm) and a decrease in shear modulus of the RF (− 7.2 kPa, − 4.7 kPa). However, an increase in hip extension ROM (3.3°) was only observed in the VFR group. There was no change in PRT and shear modulus of the VL and VM, in both the VFR group and the NVFR group. Our findings demonstrate a muscle-specific acute decrease in passive RF stiffness after VFR and NVFR, with an effect on joint flexibility found only after VFR.ConclusionThe findings of this study suggest that VFR might be a more efficient approach to maximize performance in sports with flexibility demands.

Highlights

  • Communicated by Olivier Seynnes.Foam rolling is a popular warm-up and/or recovery technique in sports and physical therapy (Pearcey et al 2015; de Benito et al 2019)

  • We performed a Friedman test to test the effects of the foam rolling protocols (NVFR and vibration foam roll (VFR))

  • The purpose of this study was to compare the effects of VFR and non-vibration foam roll (NVFR) applied for 3 min on the quadriceps muscle on muscle function (ROM, passive resistive torque (PRT), maximum voluntary isometric contraction peak torque (MVIC)) and muscle mechanical properties (SWE of the vastus lateralis (VL), vastus medialis (VM), and rectus femoris (RF))

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Summary

Introduction

Communicated by Olivier Seynnes.Foam rolling is a popular warm-up and/or recovery technique in sports and physical therapy (Pearcey et al 2015; de Benito et al 2019). While some studies have reported an increase in muscle strength (Romero-Moraleda et al 2019) others have either reported no change (Sullivan et al 2013; Baumgart et al 2019) or a decrease in muscle strength (Phillips et al 2018). As these contradictory results cannot be explained by different foam rolling durations, it is reasonable to assume that the effects may originate from other parameters that influence the application, such as the rolling pressure and rolling frequency

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