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 (2021) 20, 62 - 68   DOI: https://doi.org/10.52082/jssm.2021.62

Research article
The Acute and Prolonged Effects of Different Durations of Foam Rolling on Range of Motion, Muscle Stiffness, and Muscle Strength
Masatoshi Nakamura1,2, Remi Onuma2, Ryosuke Kiyono1, Koki Yasaka2, Shigeru Sato1, Kaoru Yahata1, Taizan Fukaya1,3, Andreas Konrad4, 
Author Information
1 Institute for Human Movement and Medical Sciences, Niigata University of Health and Welfare, Niigata, Japan
2 Department of Physical Therapy, Niigata University of Health and Welfare, Niigata, Japan
3 Department of Rehabilitation, Kyoto Kujo Hospital, 10 Karahashirajoumoncho, Minami-ku, Kyoto, 601-8453, Japan
4 Institute of Human Movement Science, Sport and Health, University of Graz, Mozartgasse 14, 8010 Graz, Austria

Andreas Konrad
✉ BSc MSc Institute of Human Movement Science, Sport and Health University of Graz, Austria
Email: andreas.konrad@uni-graz.at
Publish Date
Received: 13-10-2020
Accepted: 26-11-2020
Published (online): 01-03-2021
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ABSTRACT

“Foam Rolling” has been used in sports settings to increase range of motion and decrease muscle stiffness without decreasing muscle strength and athletic performance. However, there has been no study investigating the acute and prolonged effect of different durations of foam rolling intervention on muscle stiffness, and the minimum foam rolling intervention duration required to decrease muscle stiffness is unclear. Therefore, the purpose of this study was to investigate the acute and prolonged effect of different durations of foam rolling intervention on ROM, muscle stiffness, and muscle strength. The 45 participants were randomly allocated to 1 of 3 groups (30 s × 1 times group vs 30 s × 3 times group vs 30 s× 10 times group). The outcome measures were dorsiflexion range of motion, shear elastic modulus of medial gastrocnemius, and muscle strength before, 2 min and 30 min after foam rolling intervention. There were no significant differences before and 2 min after foam rolling intervention in 30 s×1 time group, whereas dorsiflexion range of motion was increased in both 30 s×3 times group (p = 0.042, d = 0.26) and 30 s× 10 times group (p < 0.01, d = 0.33). However, the increase in dorsiflexion range of motion was returned to baseline value after 30 minutes in both 30 s × 3 times group and 30 s × 10 times group. In addition, there were no significant changes in shear elastic modulus and muscle strength in all groups. This study suggested that foam rolling for more than 90 s or more of foam rolling was effective in order to increase the range of motion immediately without changing muscle stiffness and muscle strength.

Key words: Shear elastic modulus, gastrocnemius muscle, dorsiflexion, isometric muscle strength


           Key Points
  • Dorsiflexion range of motion was increased after 90 s or 300 s foam rolling intervention, but not following 30 s foam rolling.
  • There were no significant changes in shear elastic modulus after 30s, 90s and 300s foam rolling.
  • The increase in range of motion after foam rolling could be contributed with change in stretch tolerance.
 
 
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