Comparison of Accentuated Eccentric and Concentric Resistance Training in Athletes.

NCT07329348 | Completed DMC

• 1 other identifier: REC/RCR&AHS/24/0481
• Study Type: interventional
• Target: 79
• Locations: 1 country
• Sites: 1

Brief Summary

This study will be randomized clinical trial and will recruit male soccer players aged 18-30yrs.Participants will be randomly divided into two groups with each group performing their program 3 times per week for 8 weeks.Group A will engage in Accentuated Eccentric resistance training ,using resistance bands and Group B will participate in Concentric Reistance training ,with similar resistance bands.

Conditions

Sports Physical Therapy

Keywords

Accentuated Eccentric; concentric; resistance training

Outcome Measures

Primary Outcomes (2)

• 1-RM Back Squat test

  a warm up of 10 repetitions using an empty barbell in back squat position. After rest of 2 mints, Participants will perform same protocol with addition of (35 pounds) weight and goal is to perform maximum repetitions. At final phase, weight (35 pounds) and the maximum repetitions performed are counted. This count is then used in Epley formula to calculate the individual 1RM (32). Epley's Formula: 1RM = weight x (1 + (reps / 30))

  8 weeks

• 20-MTR Shuttle Run test

  The 20-meter shuttle run test, often called the "beep" or "bleep" test, requires participants to run back and forth continuously between two lines 20 meters apart, with a rhythm imposed by audio(beep). Starting at a slow pace, they must turn when signaled by the beeps. After about a minute, the pace increased, with the beeps occurring more quickly, requiring the runners to speed up. The speed increases each minute(level), with beeps becoming closer together. If a participant reaches the line before the beep, they must wait; if not, they receive a warning and have two more chances to catch up to the pace. A second warning results in elimination from the test. Calculation: VO2max = 18.043461 + (0.3689295 x TS) + (- 0.000349 x TS x TS)

  8 weeks

Study Arms (2)

Group A

EXPERIMENTAL

The AERT group performed eccentric resistance training by Elastic Resistance bands for 3 sessions per week for 8 weeks. Each session included 3 sets of 10 repetitions with 2-3 mints of rest interval between each set. Participants in this group start with Yellow band (light resistance) and progressing through to purple band (high resistance). The level of exercise progressively increased throughout the 8-week program, by increasing the resistance of resistance bands. In group A, participants executed the Eccentric Phase for 2-4 seconds and Concentric phase for 1-2 seconds.

Other: Accentuated eccentric resistance training ( group A)

Group B

EXPERIMENTAL

The CRT group performed concentric resistance training by Elastic Resistance bands for 3 sessions per week for 8 weeks. Each session included 3 sets of 10 repetitions with 2-3 mints of rest interval between each set. Participants in this group start with Yellow band (light resistance) and progressing through to purple band (high resistance). The level of exercise progressively increased throughout the 8-week program, by increasing the resistance of resistance bands. In group B, participants executed the Concentric Phase for 2-4 seconds and Eccentric phase for 1-2 seconds.

Other: Concentric Resistance training (group B)

Interventions

Concentric Resistance training (group B) OTHER

The CRT group performed concentric resistance training by Elastic Resistance bands for 3 sessions per week for 8 weeks. Each session included 3 sets of 10 repetitions with 2-3 mints of rest interval between each set. Participants in this group start with Yellow band (light resistance) and progressing through to purple band (heavy resistance). The level of exercise progressively increased throughout the 8-week program, by increasing the strength of resistance bands. In group B, participants executed the Concentric Phase for 2 4 seconds and Eccentric phase for 1-2 seconds.

Group B

Accentuated eccentric resistance training ( group A) OTHER

The AERT group performed eccentric resistance training by Elastic Resistance bands for 3 sessions per week for 8 weeks. Each session included 3 sets of 10 repetitions with 2-3 mints of rest interval between each set. Participants in this group start with Yellow band (light resistance) and progressing through to purple band (heavy resistance). The level of exercise progressively increased throughout the 8-week program, by increasing the strength of resistance bands. In group A, participants executed the Eccentric Phase for 2-4 seconds and Concentric phase for 1-2 seconds. 12 Comparison of accentuated eccentric and concentric resistance training in athletes

Group A

Eligibility Criteria

• Age: 18 Years - 30 Years
• Sex: male
• Healthy Volunteers: Yes
• Age Groups: Adult (18-64)

You may qualify if:

• Male soccer players
• Age 18 to 30 years.
• A minimum of two years of experience in Regular training
• Athletes with BMI 18.5kg/m2 -24.9kg/m2

You may not qualify if:

• History of lower extremity surgeries (e.g., ACL reconstruction or any major surgery) in the past year
• Athletes having consumption of Drugs which may influence Athlete performance.
• Any systemic illness
• Any musculoskeletal disorder
• Pre-existing Cardiovascular and respiratory (exercise-induced asthma) conditions

Sponsors & Collaborators

• Riphah International University: lead

Study Sites (1)

Model Town Football Club

Lahore, Punjab Province, 54000, Pakistan

Location

Related Publications (5)

• Teoldo I, Dambroz F, Brito J. Performance of soccer players under acute physical fatigue: An approach based on cognitive, tactical and physical aspects. Heliyon. 2024 Apr 30;10(9):e30516. doi: 10.1016/j.heliyon.2024.e30516. eCollection 2024 May 15.

  PMID: 38726114 BACKGROUND

• Businari GB, de Camargo JBB, Barbosa PH, Brigatto FA, Aoki MS, Braz TV, Lopes CR. Chronic Effects of Heavy Load Activity Performed Before Resistance Training Sessions on the Physical Performance of Youth Soccer Players. Int J Exerc Sci. 2022 Feb 1;14(6):1421-1434. doi: 10.70252/SDEL8387. eCollection 2021.

  PMID: 35514743 BACKGROUND

• Leao C, Silva AF, Badicu G, Clemente FM, Carvutto R, Greco G, Cataldi S, Fischetti F. Body Composition Interactions with Physical Fitness: A Cross-Sectional Study in Youth Soccer Players. Int J Environ Res Public Health. 2022 Mar 18;19(6):3598. doi: 10.3390/ijerph19063598.

  PMID: 35329288 BACKGROUND

• Almaawi A, Awwad W, Bamugaddam A, Alasheikh M, Muaddi M, Almutair O, Alomar AZ. Prevalence of knee injuries among male college students in Riyadh, Kingdom of Saudi Arabia. J Orthop Surg Res. 2020 Mar 31;15(1):126. doi: 10.1186/s13018-020-01638-1.

  PMID: 32238180 BACKGROUND

• Tayfur B, Charuphongsa C, Morrissey D, Miller SC. Neuromuscular Function of the Knee Joint Following Knee Injuries: Does It Ever Get Back to Normal? A Systematic Review with Meta-Analyses. Sports Med. 2021 Feb;51(2):321-338. doi: 10.1007/s40279-020-01386-6.

  PMID: 33247378 BACKGROUND

Study Officials

• ayesha aslam, DPT

  Riphah International University

  PRINCIPAL INVESTIGATOR

• Muhammad faheem Afzal, MS-SPT

  Riphah International University

  PRINCIPAL INVESTIGATOR

Study Design

• Study Type: interventional
• Phase: not applicable
• Allocation: RANDOMIZED
• Masking: SINGLE
• Who Masked: OUTCOMES ASSESSOR
• Purpose: TREATMENT
• Intervention Model: PARALLEL
• Sponsor Type: OTHER
• Responsible Party: SPONSOR

Model Details: randomized cinical trial

Study Record Dates

• First Submitted: December 29, 2025
• First Posted: January 9, 2026
• Study Start: March 21, 2025
• Primary Completion: October 2, 2025
• Study Completion: November 2, 2025
• Last Updated: January 9, 2026

Record last verified: 2025-12

Locations

PA (1)