Effect of 4-week cyclic stretching program on muscle properties and physical performance in healthy adult men.
Journal
The Journal of sports medicine and physical fitness
ISSN: 1827-1928
Titre abrégé: J Sports Med Phys Fitness
Pays: Italy
ID NLM: 0376337
Informations de publication
Date de publication:
Jan 2020
Jan 2020
Historique:
pubmed:
24
10
2019
medline:
8
5
2020
entrez:
24
10
2019
Statut:
ppublish
Résumé
The short-term effect of cyclic stretching (CS) has been found to decrease muscle hardness and improve physical performance. However, the long-term effect of CS program was unclear. This study investigated the long-term effect of CS program on muscle properties and physical performance. Eighteen healthy men participated in this study. The participants were assigned randomly to either the CS or control group (9 participants in each group) to conduct 2 min CS of the plantar flexor muscles 5 times a week for 4 weeks. Before and after intervention, the gastrocnemius medialis muscle hardness, muscle-tendon joint (MTJ) angle, and MTJ displacement (ΔMTJ) were measured as indices of muscle properties. In addition, the maximum range of motion of ankle dorsiflexion (ROM max), normalized maximum peak torque of plantar flexor (NPT), vertical jump height, and dynamic postural stability, dynamic postural stability index (DPSI) were measured as indices of physical performance. The CS program was found to significantly decrease muscle hardness and increase vertical jump height and ROM max, but not to change the MTJ angle, ΔMTJ, NPT, and DPSI. The results of our study suggested that long-term CS program was effective in decreasing muscle hardness and increasing vertical jump height.
Sections du résumé
BACKGROUND
BACKGROUND
The short-term effect of cyclic stretching (CS) has been found to decrease muscle hardness and improve physical performance. However, the long-term effect of CS program was unclear. This study investigated the long-term effect of CS program on muscle properties and physical performance.
METHODS
METHODS
Eighteen healthy men participated in this study. The participants were assigned randomly to either the CS or control group (9 participants in each group) to conduct 2 min CS of the plantar flexor muscles 5 times a week for 4 weeks. Before and after intervention, the gastrocnemius medialis muscle hardness, muscle-tendon joint (MTJ) angle, and MTJ displacement (ΔMTJ) were measured as indices of muscle properties. In addition, the maximum range of motion of ankle dorsiflexion (ROM max), normalized maximum peak torque of plantar flexor (NPT), vertical jump height, and dynamic postural stability, dynamic postural stability index (DPSI) were measured as indices of physical performance.
RESULTS
RESULTS
The CS program was found to significantly decrease muscle hardness and increase vertical jump height and ROM max, but not to change the MTJ angle, ΔMTJ, NPT, and DPSI.
CONCLUSIONS
CONCLUSIONS
The results of our study suggested that long-term CS program was effective in decreasing muscle hardness and increasing vertical jump height.
Identifiants
pubmed: 31640312
pii: S0022-4707.19.09870-0
doi: 10.23736/S0022-4707.19.09870-0
doi:
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM