Journal of Sports Science and Medicine
Journal of Sports Science and Medicine
ISSN: 1303 - 2968   
Ios-APP Journal of Sports Science and Medicine
Androit-APP Journal of Sports Science and Medicine
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©Journal of Sports Science and Medicine (2023) 22, 681 - 687   DOI: https://doi.org/10.52082/jssm.2023.681

Research article
Acute Effects of Different Foam Roller Intervention Techniques on Knee Extensors
Kazuki Kasahara1, Andreas Konrad2, Yuta Murakami1, Riku Yoshida3, Ewan Thomas4, Masatoshi Nakamura5, 
Author Information
1 Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
2 Institute of Human Movement Science, Sport and Health, University of Graz, Graz, Austria
3 Maniwa Orthopedic Clinic, Yamakido, Higashi-Ku, Niigata, Japan
4 Sport and Exercise Sciences Research Unit, Department of Psychology, Educational Science and Human Movement, University of Palermo, Palermo, Italy
5 Faculty of Rehabilitation Sciences, Nishi Kyushu University Kanzaki, Saga, Japan

Masatoshi Nakamura
‚úČ Faculty of Rehabilitation Sciences, Nishi Kyushu University, 4490-9 Ozaki, Kanzaki, Saga, 842-8585, Japan
Email: nakamuramas@nisikyu-u.ac.jp
Publish Date
Received: 13-09-2023
Accepted: 03-10-2023
Published (online): 01-12-2023
 
 
ABSTRACT

The usefulness of Foam Roller (FR) even without a rolling stimulus (e.g., static compression with or without dynamic joint movements) has been recently demonstrated; however, the different effects of these methods remain unclear. Thus, this study aimed to compare and investigate the effects of such FR intervention methods on knee extensors. The dominant knee extensors of 20 male university students were investigated using the following four conditions: control (CON), FR with rolling (FR_rolling), FR with static compression (FR_SC), and FR with static compression + dynamic movement of the knee joint (FR_DM). FR_SC was intervened to compress the muscle belly of the knee extensors. FR_DM involved knee flexion and extension while maintaining the FR_SC condition. Knee flexion ROM, pain pressure threshold (PPT), tissue hardness, and countermovement jump (CMJ) height were outcome variables; they were compared before and immediately after the intervention. The results of this study showed that knee flexion ROM was significantly (p < 0.01) increased in FR_rolling (d = 0.38), FR_SC (d = 0.28), and FR_DM (d = 0.64). Tissue hardness was significantly (p < 0.01) decreased in FR_rolling (d = -0.55), FR_SC (d = -0.28), and FR_DM (d = -0.42). A main effect of time (p < 0.01) was observed in knee flexion ROM, PPT, and tissue hardness, but no change in CMJ was observed. The results of this study suggested that clinicians and athletes could choose any method they like as a warm-up routine.

Key words: Range of motion, flexibility, tissue hardness, countermovement jump, foam rolling


           Key Points
  • We investigated the acute effect of foam rolling even without a rolling stimulus (e.g., static compression with or without dynamic joint movements) on knee extensors.
  • Static compression and dynamic movements exhibit the same effect as rolling using foam roller.
  • Static compression and dynamic movements via FR can intervene more easily than conventional foam roller.
 
 
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