Lower Extremity Stretch-Shortening Cycle Performance in the Vertical and Horizontal Direction as Key Determinants of Success in Collegiate Male Taekwondo
Background/Objectives: The underlying mechanisms of taekwondo-specific jumping ability among different competition levels are still unknown. This study aimed to compare vertical and horizontal stretch-shortening cycle (SSC) performance between athletes of different competitive levels and examine the...
Saved in:
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-01-01
|
| Series: | Journal of Functional Morphology and Kinesiology |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2411-5142/10/1/15 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850279694785576960 |
|---|---|
| author | Chieh-Ying Chiang Yi-Chien Chiang Hsuan-Yu Lin Hao-Che Tseng Mu-Yen Chu Jung-San Chang |
| author_facet | Chieh-Ying Chiang Yi-Chien Chiang Hsuan-Yu Lin Hao-Che Tseng Mu-Yen Chu Jung-San Chang |
| author_sort | Chieh-Ying Chiang |
| collection | DOAJ |
| description | Background/Objectives: The underlying mechanisms of taekwondo-specific jumping ability among different competition levels are still unknown. This study aimed to compare vertical and horizontal stretch-shortening cycle (SSC) performance between athletes of different competitive levels and examine the relationships of force and power production abilities between those two directions in Taiwanese collegiate-level male taekwondo athletes. Methods: Seventeen male collegiate taekwondo athletes were divided into two groups: medalists (MG, n = 8) and non-medalists (NMG, n = 9); both groups performed countermovement jumps (CMJ) on a force platform and single-leg lateral hops (SLLHs) via an optoelectronic measurement system. Eccentric and concentric phase measures from CMJ and distant and temporal variables of SLLH were collected for further analysis. Results: The MG achieved statistically superior jump height (JH), concentric peak velocity, eccentric peak force, force at 0 velocity, and eccentric displacement than NMG (<i>d</i> = 1.05–1.36). Although non-significant differences showed in SLLH variables, MG had better results than NMG (<i>d</i> = 0.40–0.84). Moderate relationships were identified between SLLH step 1 and JH, reactive strength index modified, peak concentric power, and peak concentric velocity of CMJ (<i>r</i> = 0.50–0.57, <i>p</i> < 0.05). Furthermore, step 2 ground contact time and lateral reactive strength index from SLLH were associated with CMJ peak eccentric force, peak concentric force, and force at 0 velocity (<i>r</i> = 0.53–0.59, <i>p</i> < 0.05). Conclusions: Taekwondo MG achieved superior CMJ and SLLH performance. In addition, jumping abilities in vertical and lateral directions shared specific underlying mechanisms in collegiate male taekwondo athletes. |
| format | Article |
| id | doaj-art-7b15d74cdb9e4b2fa8523a79905a0e34 |
| institution | OA Journals |
| issn | 2411-5142 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Functional Morphology and Kinesiology |
| spelling | doaj-art-7b15d74cdb9e4b2fa8523a79905a0e342025-08-20T01:49:00ZengMDPI AGJournal of Functional Morphology and Kinesiology2411-51422025-01-011011510.3390/jfmk10010015Lower Extremity Stretch-Shortening Cycle Performance in the Vertical and Horizontal Direction as Key Determinants of Success in Collegiate Male TaekwondoChieh-Ying Chiang0Yi-Chien Chiang1Hsuan-Yu Lin2Hao-Che Tseng3Mu-Yen Chu4Jung-San Chang5Department of Sports Training Science-Combats, National Taiwan Sport University, Taoyuan City 333, TaiwanGraduate Institute of Athletics and Coaching Science, National Taiwan Sport University, Taoyuan City 333, TaiwanGraduate Institute of Athletics and Coaching Science, National Taiwan Sport University, Taoyuan City 333, TaiwanGraduate Institute of Athletics and Coaching Science, National Taiwan Sport University, Taoyuan City 333, TaiwanDepartment of Sports Training Science-Combats, National Taiwan Sport University, Taoyuan City 333, TaiwanDepartment of Sports Training Science-Combats, National Taiwan Sport University, Taoyuan City 333, TaiwanBackground/Objectives: The underlying mechanisms of taekwondo-specific jumping ability among different competition levels are still unknown. This study aimed to compare vertical and horizontal stretch-shortening cycle (SSC) performance between athletes of different competitive levels and examine the relationships of force and power production abilities between those two directions in Taiwanese collegiate-level male taekwondo athletes. Methods: Seventeen male collegiate taekwondo athletes were divided into two groups: medalists (MG, n = 8) and non-medalists (NMG, n = 9); both groups performed countermovement jumps (CMJ) on a force platform and single-leg lateral hops (SLLHs) via an optoelectronic measurement system. Eccentric and concentric phase measures from CMJ and distant and temporal variables of SLLH were collected for further analysis. Results: The MG achieved statistically superior jump height (JH), concentric peak velocity, eccentric peak force, force at 0 velocity, and eccentric displacement than NMG (<i>d</i> = 1.05–1.36). Although non-significant differences showed in SLLH variables, MG had better results than NMG (<i>d</i> = 0.40–0.84). Moderate relationships were identified between SLLH step 1 and JH, reactive strength index modified, peak concentric power, and peak concentric velocity of CMJ (<i>r</i> = 0.50–0.57, <i>p</i> < 0.05). Furthermore, step 2 ground contact time and lateral reactive strength index from SLLH were associated with CMJ peak eccentric force, peak concentric force, and force at 0 velocity (<i>r</i> = 0.53–0.59, <i>p</i> < 0.05). Conclusions: Taekwondo MG achieved superior CMJ and SLLH performance. In addition, jumping abilities in vertical and lateral directions shared specific underlying mechanisms in collegiate male taekwondo athletes.https://www.mdpi.com/2411-5142/10/1/15countermovement jumpleg powerreactive strengthdynamic strength |
| spellingShingle | Chieh-Ying Chiang Yi-Chien Chiang Hsuan-Yu Lin Hao-Che Tseng Mu-Yen Chu Jung-San Chang Lower Extremity Stretch-Shortening Cycle Performance in the Vertical and Horizontal Direction as Key Determinants of Success in Collegiate Male Taekwondo Journal of Functional Morphology and Kinesiology countermovement jump leg power reactive strength dynamic strength |
| title | Lower Extremity Stretch-Shortening Cycle Performance in the Vertical and Horizontal Direction as Key Determinants of Success in Collegiate Male Taekwondo |
| title_full | Lower Extremity Stretch-Shortening Cycle Performance in the Vertical and Horizontal Direction as Key Determinants of Success in Collegiate Male Taekwondo |
| title_fullStr | Lower Extremity Stretch-Shortening Cycle Performance in the Vertical and Horizontal Direction as Key Determinants of Success in Collegiate Male Taekwondo |
| title_full_unstemmed | Lower Extremity Stretch-Shortening Cycle Performance in the Vertical and Horizontal Direction as Key Determinants of Success in Collegiate Male Taekwondo |
| title_short | Lower Extremity Stretch-Shortening Cycle Performance in the Vertical and Horizontal Direction as Key Determinants of Success in Collegiate Male Taekwondo |
| title_sort | lower extremity stretch shortening cycle performance in the vertical and horizontal direction as key determinants of success in collegiate male taekwondo |
| topic | countermovement jump leg power reactive strength dynamic strength |
| url | https://www.mdpi.com/2411-5142/10/1/15 |
| work_keys_str_mv | AT chiehyingchiang lowerextremitystretchshorteningcycleperformanceintheverticalandhorizontaldirectionaskeydeterminantsofsuccessincollegiatemaletaekwondo AT yichienchiang lowerextremitystretchshorteningcycleperformanceintheverticalandhorizontaldirectionaskeydeterminantsofsuccessincollegiatemaletaekwondo AT hsuanyulin lowerextremitystretchshorteningcycleperformanceintheverticalandhorizontaldirectionaskeydeterminantsofsuccessincollegiatemaletaekwondo AT haochetseng lowerextremitystretchshorteningcycleperformanceintheverticalandhorizontaldirectionaskeydeterminantsofsuccessincollegiatemaletaekwondo AT muyenchu lowerextremitystretchshorteningcycleperformanceintheverticalandhorizontaldirectionaskeydeterminantsofsuccessincollegiatemaletaekwondo AT jungsanchang lowerextremitystretchshorteningcycleperformanceintheverticalandhorizontaldirectionaskeydeterminantsofsuccessincollegiatemaletaekwondo |