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Full-Body and Lower-Limb Stretching on Explosive Power and Agility (static stretch)

31. srpna 2026 aktualizováno: Yueh-Ling Hsieh, China Medical University Hospital

Do Stretching Variations Affect Performance? A Comparison of Full-Body and Lower-Limb Stretching on Explosive Power and Agility Reaction Time

Stretching is commonly used during warm-up and recovery and can influence flexibility, neuromuscular control, and joint range of motion. However, the acute effects of different stretching scopes on jump and agility performance remain unclear. This study will compare whole-body and lower-limb static stretching in 60 healthy university students randomly assigned to whole-body stretching, lower-limb stretching, or control groups. Each intervention will last 14 minutes. Jump performance will be assessed using the standing long jump, squat jump, countermovement jump, and drop jump with a Vmaxpro sensor, while agility will be evaluated using the T-Test and Hexagon Agility Test. The findings are expected to clarify how stretching scope influences acute physical performance and may inform warm-up and physical therapy strategies.

Přehled studie

Postavení

Nábor

Podmínky

Detailní popis

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.

Typ studie

Pozorovací

Zápis (Odhadovaný)

60

Kontakty a umístění

Tato část poskytuje kontaktní údaje pro ty, kteří studii provádějí, a informace o tom, kde se tato studie provádí.

Studijní kontakt

Studijní záloha kontaktů

Studijní místa

    • Beitun
      • Taichung, Beitun, Tchaj-wan, 406040
        • Nábor
        • Department of Physical Therapy, China Medical University
        • Kontakt:
        • Kontakt:
        • Vrchní vyšetřovatel:
          • Yueh-Ling Hsieh, PhD

Kritéria účasti

Výzkumníci hledají lidi, kteří odpovídají určitému popisu, kterému se říká kritéria způsobilosti. Některé příklady těchto kritérií jsou celkový zdravotní stav osoby nebo předchozí léčba.

Kritéria způsobilosti

Věk způsobilý ke studiu

  • Dospělý

Přijímá zdravé dobrovolníky

Ano

Metoda odběru vzorků

Vzorek nepravděpodobnosti

Studijní populace

Healthy university students aged 18-30 years who are able to safely perform jumping and agility tasks will be recruited from the university community. Participants with recent musculoskeletal injuries, relevant surgery, cardiovascular disease, exercise contraindications, or conditions affecting test performance will be excluded.

Popis

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

Studijní plán

Tato část poskytuje podrobnosti o studijním plánu, včetně toho, jak je studie navržena a co studie měří.

Jak je studie koncipována?

Detaily designu

Kohorty a intervence

Skupina / kohorta
Whole-Body Stretching
Healthy university students who performed the whole-body static stretching protocol.
Lower-Limb Stretching Group
Healthy university students who performed the lower-limb static stretching protocol.
Non-Stretching Control Group
Healthy university students who remained seated quietly without performing stretching exercises.

Co je měření studie?

Primární výstupní opatření

Měření výsledku
Popis opatření
Časové okno
Hexagon Agility Test Completion Time
Časové okno: From baseline to immediately after the 15-min intervention
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.
From baseline to immediately after the 15-min intervention
T-Test Agility Test Completion Time
Časové okno: From baseline to immediately after the 15-min intervention
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.
From baseline to immediately after the 15-min intervention
Squat jump height
Časové okno: From baseline to immediately after the 15-min intervention
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.
From baseline to immediately after the 15-min intervention
Countermovement Jump Height
Časové okno: From baseline to immediately after the 15-min intervention
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.
From baseline to immediately after the 15-min intervention
Drop Jump Reactive Strength Index
Časové okno: From baseline to immediately after the 15-min intervention
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.
From baseline to immediately after the 15-min intervention
Standing Long Jump Distance
Časové okno: From baseline to immediately after the 15-min intervention
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.
From baseline to immediately after the 15-min intervention

Spolupracovníci a vyšetřovatelé

Zde najdete lidi a organizace zapojené do této studie.

Sponzor

Publikace a užitečné odkazy

Osoba odpovědná za zadávání informací o studiu tyto publikace poskytuje dobrovolně. Mohou se týkat čehokoli, co souvisí se studiem.

Termíny studijních záznamů

Tato data sledují průběh záznamů studie a předkládání souhrnných výsledků na ClinicalTrials.gov. Záznamy ze studií a hlášené výsledky jsou před zveřejněním na veřejné webové stránce přezkoumány Národní lékařskou knihovnou (NLM), aby se ujistily, že splňují specifické standardy kontroly kvality.

Hlavní termíny studia

Začátek studia (Aktuální)

1. dubna 2026

Primární dokončení (Odhadovaný)

31. ledna 2027

Dokončení studie (Odhadovaný)

28. února 2027

Termíny zápisu do studia

První předloženo

26. srpna 2026

První předloženo, které splnilo kritéria kontroly kvality

31. srpna 2026

První zveřejněno (Aktuální)

1. září 2026

Aktualizace studijních záznamů

Poslední zveřejněná aktualizace (Aktuální)

1. září 2026

Odeslaná poslední aktualizace, která splnila kritéria kontroly kvality

31. srpna 2026

Naposledy ověřeno

1. srpna 2026

Více informací

Termíny související s touto studií

Další identifikační čísla studie

  • CMUH115-REC3-011
  • NSTC115-2813-C-039-101-B (Jiné číslo grantu/financování: National Science and Technology Council)

Plán pro data jednotlivých účastníků (IPD)

Plánujete sdílet data jednotlivých účastníků (IPD)?

NE

Popis plánu IPD

Individual participant data are not planned for public sharing. De-identified data may be made available from the corresponding author upon reasonable request, subject to applicable ethical and institutional requirements.

Informace o lécích a zařízeních, studijní dokumenty

Studuje lékový produkt regulovaný americkým FDA

Ne

Studuje produkt zařízení regulovaný americkým úřadem FDA

Ne

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