抄録
Despite the fact that a stiffer leg spring is prerequisite for achieving a better performance during sports activities, effects of various types of warm-up on the leg stiffness is not well-known. The purpose of this study was to determine if static stretching influences the leg stiffness during two-legged hopping. Fourteen male subjects performed two-legged hopping at 2.2 Hz before and after a 3-min passive stretching of the triceps surae (dorsiflexion of 30°). Based on a spring-mass model, we calculated leg stiffness, which is defined as the ratio of maximal ground reaction force to maximum center of mass displacement at the middle of the stance phase. It was found that there was no significant difference in leg stiffness after passive static stretching. These results suggest that 3-min passive static stretching does not affect the legspring behavior and stiffness regulation during two-legged hopping. Finally, possible explanations for the invariant leg stiffness after the passive stretching are discussed.
| 元の言語 | English |
|---|---|
| ページ（範囲） | 2115-2121 |
| ページ数 | 7 |
| ジャーナル | European Journal of Applied Physiology |
| 巻 | 111 |
| 発行部数 | 9 |
| DOI | |
| 出版物ステータス | Published - 2011 9 |
Fingerprint
ASJC Scopus subject areas
- Public Health, Environmental and Occupational Health
- Orthopedics and Sports Medicine
- Physiology (medical)
これを引用
Acute effects of static stretching on leg-spring behavior during hopping. / Hobara, Hiroaki; Inoue, Koh; Kato, Emika; Kanosue, Kazuyuki.
：: European Journal of Applied Physiology, 巻 111, 番号 9, 09.2011, p. 2115-2121.研究成果: Article
}
TY - JOUR
T1 - Acute effects of static stretching on leg-spring behavior during hopping
AU - Hobara, Hiroaki
AU - Inoue, Koh
AU - Kato, Emika
AU - Kanosue, Kazuyuki
PY - 2011/9
Y1 - 2011/9
N2 - Despite the fact that a stiffer leg spring is prerequisite for achieving a better performance during sports activities, effects of various types of warm-up on the leg stiffness is not well-known. The purpose of this study was to determine if static stretching influences the leg stiffness during two-legged hopping. Fourteen male subjects performed two-legged hopping at 2.2 Hz before and after a 3-min passive stretching of the triceps surae (dorsiflexion of 30°). Based on a spring-mass model, we calculated leg stiffness, which is defined as the ratio of maximal ground reaction force to maximum center of mass displacement at the middle of the stance phase. It was found that there was no significant difference in leg stiffness after passive static stretching. These results suggest that 3-min passive static stretching does not affect the legspring behavior and stiffness regulation during two-legged hopping. Finally, possible explanations for the invariant leg stiffness after the passive stretching are discussed.
AB - Despite the fact that a stiffer leg spring is prerequisite for achieving a better performance during sports activities, effects of various types of warm-up on the leg stiffness is not well-known. The purpose of this study was to determine if static stretching influences the leg stiffness during two-legged hopping. Fourteen male subjects performed two-legged hopping at 2.2 Hz before and after a 3-min passive stretching of the triceps surae (dorsiflexion of 30°). Based on a spring-mass model, we calculated leg stiffness, which is defined as the ratio of maximal ground reaction force to maximum center of mass displacement at the middle of the stance phase. It was found that there was no significant difference in leg stiffness after passive static stretching. These results suggest that 3-min passive static stretching does not affect the legspring behavior and stiffness regulation during two-legged hopping. Finally, possible explanations for the invariant leg stiffness after the passive stretching are discussed.
KW - Hopping
KW - Leg stiffness
KW - Static stretching
KW - Warm-up
UR - http://www.scopus.com/inward/record.url?scp=80053923986&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=80053923986&partnerID=8YFLogxK
U2 - 10.1007/s00421-011-1841-3
DO - 10.1007/s00421-011-1841-3
M3 - Article
C2 - 21287195
AN - SCOPUS:80053923986
VL - 111
SP - 2115
EP - 2121
JO - European Journal of Applied Physiology
JF - European Journal of Applied Physiology
SN - 1439-6319
IS - 9
ER -