NCT06460883

Brief Summary

Hamstring injuries are highly prevalent among cricket players, comprising 10% of all injuries in field-based team sports. Eccentric strength deficits and imbalances in muscle strength are linked to a higher risk of such injuries. Our randomized clinical trial aims to assess eccentric hamstring strength using eccentric banded leg curls and eccentric cable leg curl exercises, measured by the Nordbord device. This tool provides accurate measurements of eccentric hamstring strength, power, and endurance, crucial for injury prevention in athletes. Thirty-two male professional cricketers will participate, divided into two groups receiving different exercise plans. Each group will perform 15 reps in 3 sets with rest intervals, four times a week for four months. The Nordbord device will assess hamstring strength before and after the exercise plan. Statistical analysis will be done using SPSS V25, employing descriptive statistics for frequency distribution and inferential statistics such as t-tests to compare outcomes between treatment groups.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
28

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Dec 2024

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

June 11, 2024

Completed
3 days until next milestone

First Posted

Study publicly available on registry

June 14, 2024

Completed
6 months until next milestone

Study Start

First participant enrolled

December 18, 2024

Completed
4 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 5, 2025

Completed
4 days until next milestone

Study Completion

Last participant's last visit for all outcomes

April 9, 2025

Completed
Last Updated

May 22, 2025

Status Verified

May 1, 2025

Enrollment Period

4 months

First QC Date

June 11, 2024

Last Update Submit

May 21, 2025

Conditions

Keywords

Eccentric hamstring deviceHamstring strainLengthened state eccentricsNordbordEccentric banded leg curlsEccentric cable leg curls

Outcome Measures

Primary Outcomes (1)

  • Eccentric hamstring strength

    The NordBord is a great tool for measuring hamstring strength of each leg allowing for tracking of overall strength gains and side-to-side imbalances.

    4 months

Study Arms (2)

eccentric cable leg curls

EXPERIMENTAL

Group A players will perform eccentric cable leg curls

Other: eccentric cable leg curls

eccentric banded leg curls

ACTIVE COMPARATOR

Group A players will perform eccentric banded leg curls

Other: eccentric banded leg curls

Interventions

The players will undergo eccentric cable leg curls, completing 15 reps of 3 sets every other day with 30-45 seconds rest between sets, a total duration of 40 minutes conducted four days a week over a four-month training period.

eccentric cable leg curls

The players will undergo eccentric banded leg curls, completing 15 reps of 3 sets every other day with 30-45 seconds rest between sets, a total duration of 40 minutes conducted four days a week over a four-month training period.

eccentric banded leg curls

Eligibility Criteria

Age14 Years - 35 Years
Sexmale
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Participants range in age from 14 to 35 years.
  • Eligible participants include professional cricketers at domestic and international levels (U-16, U-19, or above), as well as recent additions to domestic cricket.
  • Participants must have either good health or chronic lower extremity injuries impacting hamstring muscle strength.
  • Willingness to provide informed consent is a prerequisite for study participation.

You may not qualify if:

  • Individuals outside the age range of 14 to 35 years are excluded.
  • Those with lower extremity injuries sustained within the previous two months are ineligible.
  • Participants who have undergone lower extremity surgery within the past six months are not eligible.
  • Individuals who refuse to provide informed consent are not included in the study.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Pakistan Cricket Board

Lahore, 05450, Pakistan

Location

Related Publications (7)

  • Ripley NJ, Cuthbert M, Comfort P, McMahon JJ. Effect of additional Nordic hamstring exercise or sprint training on the modifiable risk factors of hamstring strain injuries and performance. PLoS One. 2023 Mar 2;18(3):e0281966. doi: 10.1371/journal.pone.0281966. eCollection 2023.

    PMID: 36862645BACKGROUND
  • Maniar N, Carmichael DS, Hickey JT, Timmins RG, San Jose AJ, Dickson J, Opar D. Incidence and prevalence of hamstring injuries in field-based team sports: a systematic review and meta-analysis of 5952 injuries from over 7 million exposure hours. Br J Sports Med. 2023 Jan;57(2):109-116. doi: 10.1136/bjsports-2021-104936. Epub 2022 Dec 1.

    PMID: 36455927BACKGROUND
  • Buchheit M, Cholley Y, Nagel M, Poulos N. The Effect of Body Mass on Eccentric Knee-Flexor Strength Assessed With an Instrumented Nordic Hamstring Device (Nordbord) in Football Players. Int J Sports Physiol Perform. 2016 Sep;11(6):721-726. doi: 10.1123/ijspp.2015-0513. Epub 2016 Aug 24.

    PMID: 26638728BACKGROUND
  • Sugiura Y, Saito T, Sakuraba K, Sakuma K, Suzuki E. Strength deficits identified with concentric action of the hip extensors and eccentric action of the hamstrings predispose to hamstring injury in elite sprinters. J Orthop Sports Phys Ther. 2008 Aug;38(8):457-64. doi: 10.2519/jospt.2008.2575. Epub 2008 Aug 1.

    PMID: 18678956BACKGROUND
  • Bourne MN, Duhig SJ, Timmins RG, Williams MD, Opar DA, Al Najjar A, Kerr GK, Shield AJ. Impact of the Nordic hamstring and hip extension exercises on hamstring architecture and morphology: implications for injury prevention. Br J Sports Med. 2017 Mar;51(5):469-477. doi: 10.1136/bjsports-2016-096130. Epub 2016 Sep 22.

    PMID: 27660368BACKGROUND
  • Augustsson J, Andersson H. Differences in Peak Knee Flexor Force between Eccentric-Only and Combined Eccentric-Concentric Nordic Hamstring Exercise. Sports (Basel). 2023 Feb 7;11(2):41. doi: 10.3390/sports11020041.

    PMID: 36828326BACKGROUND
  • Lodge C, Tobin D, O'Rourke B, Thorborg K. Reliability and Validity of a New Eccentric Hamstring Strength Measurement Device. Arch Rehabil Res Clin Transl. 2019 Nov 22;2(1):100034. doi: 10.1016/j.arrct.2019.100034. eCollection 2020 Mar.

    PMID: 33543063BACKGROUND

Study Officials

  • Hira Shaukat, TDPT

    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

Study Record Dates

First Submitted

June 11, 2024

First Posted

June 14, 2024

Study Start

December 18, 2024

Primary Completion

April 5, 2025

Study Completion

April 9, 2025

Last Updated

May 22, 2025

Record last verified: 2025-05

Data Sharing

IPD Sharing
Will not share

Locations