Strength and Plyometric Training in Swimming

NCT07096492 | Recruiting

• 1 other identifier: 07032025
• Study Type: interventional
• Target: 18
• Locations: 1 country
• Sites: 1

Brief Summary

A total of 18 participants are planned to be included in the study. Participants will be randomly assigned into two groups in the order of their arrival. One group will perform strength exercises in addition to standard swim training (strength group), while the other group will perform plyometric exercises in addition to standard swim training (plyometric group). Both groups will participate in two training sessions per week for a duration of 8 weeks. The 50m sprint biomechanics, stroke frequency, or overall performance will be evaluated before and after the intervention.

Conditions

Sport Performance; Biomechanics; Plyometric Exercises; Strength Training Effects; Swimming

Keywords

Performance; Speed; Power; Biomechanics; Youth Swimmers

Outcome Measures

Primary Outcomes (2)

• 50m Sprint Time (Overall Performance)

  The 50m sprint time is used as a direct measure of swimming performance and is evaluated both in freestyle and in the swimmer's primary stroke. This test is conducted before and after the 8-week training intervention using a stopwatch and high-resolution video equipment. Time splits are also recorded for the 15m and 25m marks to assess acceleration and speed maintenance phases. This measure provides a clear indication of whether the intervention (strength or plyometric training) leads to improved sprint capacity in competitive youth swimmers.

  Through study completion, an average of 12 months

• Sprint biomechanics and stroke frequency

  Biomechanics are assessed through underwater and above-water video analysis to evaluate body alignment, stroke path, and coordination. Stroke frequency, calculated from the same footage by timing three full stroke cycles, reflects how quickly a swimmer completes strokes. Together, these measures reveal whether performance gains stem from technical improvements, faster turnover, or more effective propulsion.

  Through study completion, an average of 12 months

Secondary Outcomes (2)

• Upper and Lower Body Muscle Strength

  Through study completion, an average of 12 months

• Lower Body Explosive Power (Standing Long Jump Test)

  Through study completion, an average of 12 months

Study Arms (2)

Plyometric Group

EXPERIMENTAL

Other: Standard Swimming Training; Other: Plyometric Training

Strength Group

EXPERIMENTAL

Other: Standard Swimming Training; Other: Strength Training

Interventions

Standard Swimming Training OTHER

Warm-Up: 1500 meters. Main set: 2000-3000 meters. Post-set: 1000 meters. Cool-Down: 200-400 meters.

Plyometric Group; Strength Group

Plyometric Training OTHER

The plyometric training intervention will focus on developing explosive power and reaction speed through various jumping and landing exercises. Progressive overload principles will be applied, with progression achieved through increasing sets and intensity. Plyometric exercises will be performed twice a week, similar to the strength group, and will begin with 3 sets of 3 repetitions in the first week. As the body adapts to the exercises, one additional set will be added each week until the third week, which will conclude with 5 sets. In the fourth week, a deload will be incorporated with 2 sets to allow for recovery. After the deload week, intensity will increase, either by performing exercises faster or exerting maximum effort during each repetition. Upper-body exercises will include the medicine ball slam, sitting medicine ball side passes, and medicine ball chest passes, focusing on explosive upper body movements. Lower-body exercises will consist of standing long jumps, partner med

Plyometric Group

Strength Training OTHER

The strength training intervention was designed to supplement standard swim training with a structured, full-body resistance program aimed at enhancing muscular strength and swimming biomechanics through progressive overload. Participants in the strength group engaged in two sessions per week for each major muscle group. Training commenced with 3 sets of 8 repetitions per exercise during the first week, with weekly increases in training volume until the third week (5 sets), followed by a deload week (3 sets) to promote recovery. The subsequent four weeks maintained a consistent 5-set structure, with progression achieved through incremental increases in load. Each session began with lower-body exercises to prioritize large muscle group activation and maximize session efficiency. Lower-body exercises included dumbbell goblet squats, step-ups, Romanian deadlifts, TRX hamstring curls, and calf raises, while upper-body work featured push-ups, TRX rows, dumbbell rows, and dumbbell shoulder p

Strength Group

Eligibility Criteria

• Age: 10 Years - 17 Years
• Sex: all
• Healthy Volunteers: Yes
• Age Groups: Child (0-17)

You may not qualify if:

• Presence of a health condition requiring regular medical check-ups (e.g., cardiovascular, respiratory, or musculoskeletal disorders).

Sponsors & Collaborators

• Istinye University: lead

Study Sites (1)

Beylikdüzü Yüzme Kulübü

Istanbul, Beylikdüzü, 34528, Turkey (Türkiye)

RECRUITING

MeSH Terms

Interventions

Plyometric Exercise; Resistance Training

Intervention Hierarchy (Ancestors)

Exercise Therapy; Rehabilitation; Aftercare; Continuity of Patient Care; Patient Care; Therapeutics; Physical Therapy Modalities; Physical Conditioning, Human; Exercise; Motor Activity; Movement; Musculoskeletal Physiological Phenomena; Musculoskeletal and Neural Physiological Phenomena

Central Study Contacts

Çiçek Günday, Asst. Prof.

CONTACT

850 283 60 00; cicek.gunday@istinye.edu.tr

Abdelrahman A Elkhoderi, PT

CONTACT

539 725 15 14; abdelrahmanahmedmohamedelsayed.elkhoderi@stu.istinye.edu.tr

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: INVESTIGATOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: PRINCIPAL INVESTIGATOR
• PI Title: Asst. Prof.

Study Record Dates

• First Submitted: July 24, 2025
• First Posted: July 31, 2025
• Study Start: March 7, 2025
• Primary Completion (Estimated): May 30, 2026
• Study Completion (Estimated): May 30, 2026
• Last Updated: July 31, 2025

Record last verified: 2025-07

Data Sharing

• IPD Sharing: Will share

Locations

TU (1)