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Health AdultsNCT07260318

Acute Effects of Cricket Fast Bowling on Bone Turnover and Signaling Markers

A study testing Exercise in people with Health Adults, run by Loughborough University at 1 site in United Kingdom.

Enrolling by invitation

Enrolling by invitation. The study team selects and invites participants, usually from an existing group of patients.

Sites and contacts
Official record
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Trial summary

The goal of this study is to investigate the acute effects of cricket fast bowling on the bone turnover and signaling markers in healthy young males. The main question aims to answer: Does a single bout acute fast bowling change serum C-terminal telopeptide of type I collagen (CTX-I) and other bone turnover and… Read more about this study

Who is it for?
Ages 18 to 30 years, men onlyHealthy volunteers can take part
Conditions the study is for
Health Adults
What is being tested?
Exercise
Could I receive a placebo?
No, everyone receives an active treatment
How many people
14 participants
Where
1 siteUnited Kingdom
Study dates
20 Feb 2023to 31 Dec 2025
Phase
Interventional
Are there results?
Not yet: the study is under way

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 18 to 30 years
  • Men only
  • Healthy volunteers accepted
  • Adult

Who may be able to join

  • Healthy male
  • Aged 18 - 30
  • Cricket fast bowlers (a ball speed of ~100kmh) playing for a university team or above, such as British Universities and Colleges Sport (BUCS) or University Centre of Cricketing Excellence (UCCE)
  • Injury free for the last 3 months

Who cannot join

  • Diagnosed with any disease or use of any medication that affects bone turnover
  • Fracture experienced within the previous year/season

Trial locations and contacts

1 site in 1 country. Contact the study team or a site near you to ask about taking part.

United Kingdom1 site
  • Loughborough Univeristy

    Loughborough, Leicestershire, LE11 3TU

Other trials in United Kingdom

About this study

The goal of this study is to investigate the acute effects of cricket fast bowling on the bone turnover and signaling markers in healthy young males.

The main question aims to answer:

  • Does a single bout acute fast bowling change serum C-terminal telopeptide of type I collagen (CTX-I) and other bone turnover and signaling markers levels?

Participants complete both the bowling and control trials, with a minimum washout period of one week between trials. During each trial, blood samples are collected at three time points: pre-, immediately post, and 2-hour post bowling/rest.

Conditions
Health Adults
Being tested
Exercise
Keywords
Cricket, Fast bowling, Bone turnover, Stress injuries

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • ExerciseBehavioural

    During the bowling trial, participants perform 8 sets of 6 deliveries (bowl at match intensity throughout), followed by 2-hour rest. Each set is interspersed by a 3-minute randomized fielding simulation. During the control trial, participants rest throughout instead of bowling.

Study groups in NCT07260318
Study groupRoleWhat they receive
Arm Bowling + ControlExperimentalParticipants first perform the bowling trial, followed by the control trial, with a minimum interval of one week between the two trials.
Receives: Behavioral: Exercise
Arm Control + BowlingExperimentalParticipants first perform the control trial, followed by the bowling trial, with a minimum interval of one week between the two trials.
Receives: Behavioral: Exercise

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Serum C-terminal telopeptide of type I collagen (CTX-I) concentration

    Serum CTX-I concentration is measured using electrochemiluminescence immunoassay (ECLIA) and reported in nanograms per milliliter (ng/mL).

    Measured: Blood samples are collected at baseline, immediately after the bowling or the corresponding rest period, and 2 hours after the second blood sample collection.

Secondary outcomes (7)
  1. Serum N-terminal propeptide of type I collagen (PINP) concentration

    Serum PINP concentration is measured using electrochemiluminescence immunoassay (ECLIA) and reported in nanograms per milliliter (ng/mL).

    Measured: Blood samples are collected at baseline, immediately after the bowling or the corresponding rest period, and 2 hours after the second blood sample collection.

  2. Serum parathyroid hormone (PTH) concentration

    Serum PTH concentration is measured using electrochemiluminescence immunoassay (ECLIA) and reported in picograms per milliliter (pg/mL).

    Measured: Blood samples are collected at baseline, immediately after the bowling or the corresponding rest period, and 2 hours after the second blood sample collection.

  3. Serum sclerostin concentration

    Serum sclerostin concentration is measured using an enzyme-linked immunosorbent assay (ELISA) and reported in picograms per milliliter (pg/mL).

    Measured: Blood samples are collected at baseline, immediately after the bowling or the corresponding rest period, and 2 hours after the second blood sample collection.

  4. Serum dickkopf Wnt signaling pathway inhibitor 1 (DKK1) concentration

    Serum DKK1 concentration is measured using an enzyme-linked immunosorbent assay (ELISA) and reported in picograms per milliliter (pg/mL).

    Measured: Blood samples are collected at baseline, immediately after the bowling or the corresponding rest period, and 2 hours after the second blood sample collection.

  5. Serum osteoprotegerin (OPG) concentration

    Serum OPG concentration is measured using an enzyme-linked immunosorbent assay (ELISA) and reported in picograms per milliliter (pg/mL).

    Measured: Blood samples are collected at baseline, immediately after the bowling or the corresponding rest period, and 2 hours after the second blood sample collection.

  6. Serum irisin concentration

    Serum irisin concentration is measured using an enzyme-linked immunosorbent assay (ELISA) and reported in picograms per milliliter (pg/mL).

    Measured: Blood samples are collected at baseline, immediately after the bowling or the corresponding rest period, and 2 hours after the second blood sample collection.

  7. Bowling speed

    Bowling speed is measured using a radar gun during the 8 overs of bowling and reported in miles per hour (MPH).

    Measured: Bowling speed is measured during the bowling trial.

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted3 Dec 2025
  2. Study start20 Feb 2023
  3. Primary completion31 Dec 2025 (estimated)
  4. Study completion31 Dec 2025 (estimated)

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Basic science
Allocation
Non-randomised
Intervention model
Crossover
Masking
None (open label)
Enrolment
14 participants (estimated)
IDs, dates and publications
ClinicalTrials.gov ID
NCT07260318
Sponsor's protocol ID
11201
Status last verified
Nov 2025
First submitted
14 Nov 2025
Last updated
3 Dec 2025
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
Individual data sharing
No

Questions about this trial

What is this clinical trial studying?

A study testing Exercise in people with Health Adults, run by Loughborough University at 1 site in United Kingdom.

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 4 inclusion and 2 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: enrolling by invitation, as of the sponsor's last update on 3 Dec 2025. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in United Kingdom. Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

This study is still under way. Results are not available in the source record yet.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Serum C-terminal telopeptide of type I collagen (CTX-I) concentration (time frame: Blood samples are collected at baseline, immediately after the bowling or the corresponding rest period, and 2 hours after the second blood sample collection.). It is what the study was designed to measure, not a finding.

Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 3 Dec 2025.

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