Comparison of the Immediate Effects of Lower Extremity Static Stretching Exercises on Vertical Jump

Gender-Based Comparison of the Immediate Effects of Lower Extremity Static Stretching Exercises on Vertical Jump in Sedentary Individuals

The aim of this study is to compare the immediate effects of lower extremity static stretching exercises on vertical jump in sedentary individuals based on gender.

Study Overview

• Status: Completed
• Conditions: Stretch
• Intervention / Treatment: Other: Static streching exercise

Detailed Description

The study was conducted on 10 female (Group 1) and 10 male (Group 2) university students. The vertical jump height (VJH) of the individuals who agreed to participate in the study was measured with a wireless jumping platform. After the initial evaluations, lower extremity static stretching exercises targeting the M. Gastrocnemious and M. Hamstring muscles were applied to the participants in both groups. The VJH of the participants was re-evaluated immediately after the application. Both pre-post evaluations and female-male comparison evaluations will be performed for the statistical analysis of the data.Statistical analysis will be performed with SPSS 24.0 program. If the data is parametric, paired sample t-test will be used for within-group evaluation; independent sample t-test will be used for between-group evaluation. If the data is non-parametric, Wilson test will be used for within-group evaluation and Mann Whitney U test will be used for between-group evaluation.

• Study Type: Interventional
• Enrollment (Actual): 20
• Phase: Not Applicable

Contacts and Locations

Study Locations

• Turkey
  • Istanbul, Turkey
    • Halic University

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Adult
• Accepts Healthy Volunteers: Yes

Description

Inclusion Criteria:

• Volunteering to participate in the study
• Being between the ages of 18-25

Exclusion Criteria:

• Having balance problems for any reason
• Having a history of lower extremity surgery
• Having a musculoskeletal problem within the last year
• Doing regular exercise within the last year

Study Plan

How is the study designed?

Design Details

• Primary Purpose: Treatment
• Allocation: Non-Randomized
• Interventional Model: Parallel Assignment
• Masking: None (Open Label)

Number of Arms

2

Arms and Interventions

Participant Group / Arm	Intervention / Treatment
Experimental: Group 1; 10 sedentary women	Other: Static streching exercise; Static stretching exercises were applied to the M. Gastrocnemious and M. Hamstring muscle groups for both groups. The exercises were applied as a set, with three repetitions for 15 seconds on each leg, with a 20-second rest between repetitions. Static stretching was applied by slowly stretching the relevant muscle group to the point of sensitivity, without straining the pain threshold, and waiting in that position. All stretching exercises lasted an average of 6 minutes.
Experimental: Group 2; 10 sedentary men	Other: Static streching exercise; Static stretching exercises were applied to the M. Gastrocnemious and M. Hamstring muscle groups for both groups. The exercises were applied as a set, with three repetitions for 15 seconds on each leg, with a 20-second rest between repetitions. Static stretching was applied by slowly stretching the relevant muscle group to the point of sensitivity, without straining the pain threshold, and waiting in that position. All stretching exercises lasted an average of 6 minutes.

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Vertical jump height	DSY was measured with a wireless jumping platform (Ezejump, Australia). Participants were subjected to three squat jump tests on this platform with free intervals between repetitions and the maximum value obtained from the test was recorded as the vertical jump height.	at baseline and immediately after the lower extremity static stretching exercise program

Collaborators and Investigators

• Sponsor: Halic University
• Investigators: Principal Investigator: Duygu Şahin Altaç, PT, MSc., Halic University

Publications and helpful links

General Publications

• Marek SM, Cramer JT, Fincher AL, Massey LL, Dangelmaier SM, Purkayastha S, Fitz KA, Culbertson JY. Acute Effects of Static and Proprioceptive Neuromuscular Facilitation Stretching on Muscle Strength and Power Output. J Athl Train. 2005 Jun;40(2):94-103.
• Dalrymple KJ, Davis SE, Dwyer GB, Moir GL. Effect of static and dynamic stretching on vertical jump performance in collegiate women volleyball players. J Strength Cond Res. 2010 Jan;24(1):149-55. doi: 10.1519/JSC.0b013e3181b29614.
• Markovic G, Dizdar D, Jukic I, Cardinale M. Reliability and factorial validity of squat and countermovement jump tests. J Strength Cond Res. 2004 Aug;18(3):551-5. doi: 10.1519/1533-4287(2004)182.0.CO;2.

Study record dates

Study Major Dates

• Study Start (Actual): June 10, 2024
• Primary Completion (Actual): June 10, 2024
• Study Completion (Actual): July 10, 2024

Study Registration Dates

• First Submitted: July 28, 2024
• First Submitted That Met QC Criteria: July 28, 2024
• First Posted (Actual): July 31, 2024

Study Record Updates

• Last Update Posted (Actual): March 25, 2025
• Last Update Submitted That Met QC Criteria: March 13, 2025
• Last Verified: March 1, 2025

More Information

Terms related to this study

• Keywords: strech
• Other Study ID Numbers: 28.07.2024-İEU

Plan for Individual participant data (IPD)

• Plan to Share Individual Participant Data (IPD)?: NO

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No