- ICH GCP
- USA klinikai vizsgálatok nyilvántartása
- Klinikai vizsgálat NCT07796464
Full-Body and Lower-Limb Stretching on Explosive Power and Agility (static stretch)
Do Stretching Variations Affect Performance? A Comparison of Full-Body and Lower-Limb Stretching on Explosive Power and Agility Reaction Time
A tanulmány áttekintése
Állapot
Körülmények
Részletes leírás
Stretching exercise is one of the most commonly used strategies for pre-exercise warm-up and post-exercise recovery, and its physiological effects involve muscle flexibility, neuromuscular control, and joint range of motion. However, empirical evidence regarding the acute effects of different stretching scopes on jumping ability and agility remains relatively limited, as most previous studies have focused on individual muscles or localized muscle groups. Therefore, the present study aims to investigate the effects of static stretching involving different body regions, specifically whole-body and lower-limb stretching, on explosive performance and agility.
A pretest-intervention-posttest design will be adopted. A total of 60 healthy university students (30 males and 30 females) are expected to be recruited and randomly assigned to a whole-body stretching group (10 males and 10 females), a lower-limb stretching group (10 males and 10 females), or a control group (10 males and 10 females). The duration of the static stretching intervention will be standardized to 14 minutes. The whole-body stretching group will perform stretching exercises targeting the major muscle groups of the upper limbs, trunk, and lower limbs, whereas the lower-limb stretching group will focus on key lower-limb muscle groups, including the quadriceps, hamstrings, and gastrocnemius. The control group will remain seated quietly for 14 minutes without performing any stretching exercise.
Participants will undergo a series of physical performance assessments before and after the intervention. Jump performance will be evaluated using the standing long jump, squat jump, countermovement jump, and drop jump. All jump-related data will be recorded using a Vmaxpro wireless inertial measurement sensor (BM Sports Technology GmbH, Germany), providing key parameters such as jump height, peak velocity, and peak power. Agility will be assessed using the T-Test and Hexagon Agility Test.
It is hypothesized that excessive static stretching may cause an acute reduction in muscular strength and explosive performance. The whole-body stretching group may demonstrate only a slight decrease in jump performance while maintaining relatively stable agility performance, whereas the lower-limb stretching group may exhibit changes in both jump and agility performance. The findings of this study are expected to clarify the relationship between the scope of static stretching and subsequent physical performance and may provide evidence to support the design of pre-exercise warm-up strategies and physical therapy interventions.
Tanulmány típusa
Beiratkozás (Becsült)
Kapcsolatok és helyek
Tanulmányi kapcsolat
- Név: Yueh-Ling Hsieh, PhD
- Telefonszám: 886-0929122977
- E-mail: sherrie@mail.cmu.edu.tw
Tanulmányozza a kapcsolattartók biztonsági mentését
- Név: Ling-Ling Tang, BS
- Telefonszám: 886-0979087177
- E-mail: l0979087177@gmail.com
Tanulmányi helyek
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Beitun
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Taichung, Beitun, Tajvan, 406040
- Toborzás
- Department of Physical Therapy, China Medical University
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Kapcsolatba lépni:
- Yueh-Ling Hsieh, PhD
- Telefonszám: 0929122977
- E-mail: sherrie@mail.cmu.edu.tw
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Kapcsolatba lépni:
- Ling-Ling Tang, BS
- Telefonszám: 0979087177
- E-mail: l0979087177@gmail.com
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Kutatásvezető:
- Yueh-Ling Hsieh, PhD
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Részvételi kritériumok
Jogosultsági kritériumok
Tanulmányozható életkorok
- Felnőtt
Egészséges önkénteseket fogad
Mintavételi módszer
Tanulmányi populáció
Leírás
Healthy university students aged 20-30 years Regularly engaged in physical activity Not specialized in weightlifting or jumping disciplines Able to understand the study procedures and provide written informed consent
Exclusion Criteria:
Acute lower-limb or low-back injury within the previous three months Fracture, sprain, or muscle strain within the previous three months Related surgery or medical treatment within the previous three months Pain, swelling, inflammation, or restricted movement on the day of testing Any condition that may compromise exercise safety Physician-advised restriction from moderate- to high-intensity exercise Cardiovascular disease or other exercise contraindications Neurological, musculoskeletal, or balance impairments that may affect test performance
Tanulási terv
Hogyan készül a tanulmány?
Tervezési részletek
Kohorszok és beavatkozások
Csoport / Kohorsz |
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Whole-Body Stretching
Healthy university students who performed the whole-body static stretching protocol.
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Lower-Limb Stretching Group
Healthy university students who performed the lower-limb static stretching protocol.
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Non-Stretching Control Group
Healthy university students who remained seated quietly without performing stretching exercises.
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Mit mér a tanulmány?
Elsődleges eredményintézkedések
Eredménymérő |
Intézkedés leírása |
Időkeret |
|---|---|---|
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Hexagon Agility Test Completion Time
Időkeret: From baseline to immediately after the 15-min intervention
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Agility performance will be assessed using the Hexagon Agility Test.
Participants will complete two valid trials, and the mean completion time will be used for analysis.
Completion time will be recorded in seconds, with a shorter time indicating better agility performance.
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From baseline to immediately after the 15-min intervention
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T-Test Agility Test Completion Time
Időkeret: From baseline to immediately after the 15-min intervention
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Agility performance will be assessed using the T-Test Agility Test.
Participants will complete two trials, and completion time will be recorded in seconds using a photocell timing gate system.
The mean completion time of the two trials will be used for analysis, with lower values indicating better agility performance.
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From baseline to immediately after the 15-min intervention
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Squat jump height
Időkeret: From baseline to immediately after the 15-min intervention
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Squat jump performance will be assessed using a wireless inertial measurement sensor.
Participants will perform two valid squat jump trials, and the mean jump height will be used for analysis.
Jump height will be recorded in centimeters, with higher values indicating better jump performance.
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From baseline to immediately after the 15-min intervention
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Countermovement Jump Height
Időkeret: From baseline to immediately after the 15-min intervention
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Countermovement jump performance will be assessed using a wireless inertial measurement sensor.
Participants will perform two valid countermovement jump trials, and the mean jump height will be used for analysis.
Jump height will be recorded in centimeters, with higher values indicating better jump performance.
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From baseline to immediately after the 15-min intervention
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Drop Jump Reactive Strength Index
Időkeret: From baseline to immediately after the 15-min intervention
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Reactive strength during the drop jump will be assessed using a wireless inertial measurement sensor.
The reactive strength index will be calculated as jump height divided by ground contact time.
Participants will perform two valid trials, and the mean reactive strength index will be used for analysis.
Values will be expressed in meters per second, with higher values indicating better reactive strength performance.
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From baseline to immediately after the 15-min intervention
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Standing Long Jump Distance
Időkeret: From baseline to immediately after the 15-min intervention
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Horizontal lower-limb explosive performance will be assessed using the standing long jump.
Participants will perform two valid trials, and the mean jump distance will be used for analysis.
Jump distance will be recorded in centimeters, with higher values indicating better performance.
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From baseline to immediately after the 15-min intervention
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Együttműködők és nyomozók
Szponzor
Publikációk és hasznos linkek
Általános kiadványok
- Behm DG, Blazevich AJ, Kay AD, McHugh M. Acute effects of muscle stretching on physical performance, range of motion, and injury incidence in healthy active individuals: a systematic review. Appl Physiol Nutr Metab. 2016 Jan;41(1):1-11. doi: 10.1139/apnm-2015-0235. Epub 2015 Dec 8.
- Behm DG, Alizadeh S, Anvar SH, Drury B, Granacher U, Moran J. Non-local Acute Passive Stretching Effects on Range of Motion in Healthy Adults: A Systematic Review with Meta-analysis. Sports Med. 2021 May;51(5):945-959. doi: 10.1007/s40279-020-01422-5. Epub 2021 Jan 18.
Tanulmányi rekorddátumok
Tanulmány főbb dátumok
Tanulmány kezdete (Tényleges)
Elsődleges befejezés (Becsült)
A tanulmány befejezése (Becsült)
Tanulmányi regisztráció dátumai
Először benyújtva
Először nyújtották be, amely megfelel a minőségbiztosítási kritériumoknak
Első közzététel (Tényleges)
Tanulmányi rekordok frissítései
Utolsó frissítés közzétéve (Tényleges)
Az utolsó frissítés elküldve, amely megfelel a minőségbiztosítási kritériumoknak
Utolsó ellenőrzés
Több információ
A tanulmányhoz kapcsolódó kifejezések
Kulcsszavak
Egyéb vizsgálati azonosító számok
- CMUH115-REC3-011
- NSTC115-2813-C-039-101-B (Egyéb támogatási/finanszírozási szám: National Science and Technology Council)
Terv az egyéni résztvevői adatokhoz (IPD)
Tervezi megosztani az egyéni résztvevői adatokat (IPD)?
IPD terv leírása
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