Skip to main content
OpenTrials
Completed

NCT Number: NCT07440823

Effects of Accentuated Eccentric Versus Concentric Training in Fast Bowlers

Fast bowlers in cricket rely heavily on upper arm muscle strength, power, and endurance to deliver high-speed balls and prevent injury. Two primary training approaches, accentuated eccentric and concentric training, are widely used to enhance these physical attributes. Accentuated eccentric training focuses on the muscle-lengthening phase under increased loads, while concentric training emphasizes the muscle-shortening phase. This study aims to evaluate and compare the effects of these two training approaches on upper arm muscle girth, strength, and power, providing evidence-based guidance for optimizing fast bowlers' strength and conditioning programs.

This randomized clinical trial will investigate the effects of accentuated eccentric versus concentric training on upper arm muscle girth, strength, and power in 44 male fast bowlers aged 18-30 years, who have at least two years of bowling experience. Participants will be randomly assigned in to two groups: Group A, which will undergo an accentuated eccentric training program, and Group B, which will perform concentric-focused training. Both groups will participate in a structured 8-week training regimen with sessions three times per week. Baseline measurements for muscle girth, (measuring tape) strength, (via handheld dynamometer), and power, (measured by medicine ball throw) will be collected and compared with post-intervention assessments. Data will be analyzed using SPSS 26 software

Completed

Looking for future studies?

Notify Me

Key information

Conditions

Sports Physical Therapy

Age range

18 year–30 year

Sex eligibility

Male

Study type

Interventional

Phase

Not applicable

Primary location

Dring Stadium Bahawalpur

Chak Four Hundred Fifty-four, Punjab Province, 63100, Pakistan

About this study

Design: Randomized clinical trials(RCT) Sample Size: will be calculated by using G-power/epi tool Sampling Technique: convienent and non- probability sampling Study Setting: The study will be conducted at a sports training facility PCB lahore Inclusion Criteria

  • Male fast bowlers aged 18-30
  • At least 2 years of bowling experience Exclusion Criteria
  • Participants with any upper body musculoskeletal injuries within the last 6 months
  • History of any chronic illness affecting physical performance
  • Previously activily involved in eccentric or concentric training in the past year Tools

The primary tools for data collection will include:

Muscle girth measurement: Measuring tape for arm girth. Strength measurement: squat with 1RM Power measurement: Medicine ball throw test to assess upper body power output

Who can participate

Healthy volunteers accepted: Yes

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Male fast bowlers age 18-30 years (17)
  • Bowlers having 2 years' experience of bowling (18)
  • Participants should actively playing or training in fast bowling (19).
  • Participants BMI must be between 18.5 and 25.5 Kg/m2 (20)

Exclusion criteria

  • Participants with any or chronic injury to the upper limbs, shoulder or back.
  • Those who have undergone upper limb surgery within 12 months
  • Participants involved any other concentric or strength training program.
  • Participants with known cardiovascular or respiratory conditions will be excluded.
  • Participants using performance enhancing substances will be excluded

Treatment and study plan

Accentuated Eccentric Training

Other

This group will receive accentuated eccentric exercise training program

Handled dynamometer

Other

A handheld dynamometer is a portable device used to measure muscle strength and force output. Commonly utilized in rehabilitation and sports science, it provides objective assessments of muscular strength in various body parts. By applying force against the dynamometer, clinicians can quantify strength levels accurately, track progress, and tailor training programs effectively

Concentric training

Other

This group will receive concentric exercise training program

Primary outcomes

  1. Measuring tape

    Time frame: 8 weeks

    A measuring tape is a flexible tool used to measure the circumference of body parts, commonly used in physical fitness, sports, and medical assessments. It is an ideal instrument for measuring muscle girth, such as the biceps, triceps, and other body areas, due to its flexibility and ease of use. Measuring tape provides accurate, reliable circumference measurements, enabling the assessment of muscle hypertrophy or body composition changes over time. It provides a direct measure of the circumference of the biceps and triceps at specified points (e.g., midway between the shoulder and elbow)

  2. Handled dynamometer

    Time frame: 8 weeks

    A handheld dynamometer is a portable device used to measure muscle strength and force output. Commonly utilized in rehabilitation and sports science, it provides objective assessments of muscular strength in various body parts. By applying force against the dynamometer, clinicians can quantify strength levels accurately, track progress, and tailor training programs effectively

  3. Medicine ball throw

    Time frame: 8 weeks

    The medicine ball throw is a dynamic test used to assess upper body power, specifically targeting the shoulders, chest, triceps, and core muscles. In this test, participants throw a weighted medicine ball (typically 3-5 kg) as far as possible from a standing or seated position. The throw is executed with an explosive pushing motion, similar to a chest pass in basketball, and the distance covered by the ball is measured. For male cricket players, excellent scores 6.0 meters, above-average scores range from 5.0 to 6.0 meters, average scores are between 4.0 and 5.0 meters, and below-average scores fall under 4.0 meters

Sponsors and collaborators

Lead sponsor

Riphah International University

Other

Registry information

Official study title

Effects of Accentuated Eccentric Versus Concentric Training on Upper Arm Muscle Girth, Strength and Power in Fast Bowlers

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Feb 27, 2026
Registry last updated
Feb 27, 2026

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

Related clinical trials

Published trials that share one or more normalized conditions with this study.