NCT07045129

Brief Summary

Muscle strain injuries represent one of the most prevalent injuries in athletes. Despite this high injury prevalence, there is no evidence to support some of the currently used therapeutic strategies. Amongst them, thermal therapies and especially cryotherapy modalities (Ice, Cold water immersion, perfused garments) have been extensively used on soft tissue injuries to reduce pain perception and decrease inflammation. However, recent findings in humans and in animals have reported conflictual results on the effects of cold on muscle regeneration. On the other hand, recent studies in humans suggest that passive heat exposure can impact positively muscle protein synthesis, mitochondrial content and muscle torque in injured, immobilized and healthy participants. Furthermore, preliminary results from our group have shown a faster removal of muscle damages from the muscle and suggest a better muscle regeneration after a localized heat exposure. As such, our preliminary results confirmed that local heating may represent a promising tool to accelerate muscle regeneration. This randomized controlled trial will investigate the therapeutic effect of two thermal interventions (Hot or cold-water immersion) in the management of acute lower limbs muscle injuries. 135 patients will be distributed in a counterbalanced way into 3 groups: Hot, Cold and Control. All the groups will receive the same physiotherapy treatment. The thermal intervention will consist in 10 sessions of either, 60-minute hot water bath (42°C) for the hot group or, 15-minute Cold water bath (12°C) for the cold group realized after the 10 first physiotherapy session. All thermal interventions will be performed after the testing and physiotherapy treatment.

Trial Health

63
Monitor

Trial Health Score

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

Enrollment
135

participants targeted

Target at P50-P75 for not_applicable

Timeline
29mo left

Started Sep 2025

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
not yet recruiting

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

Study Progress23%
Sep 2025Sep 2028

First Submitted

Initial submission to the registry

May 22, 2025

Completed
1 month until next milestone

First Posted

Study publicly available on registry

July 1, 2025

Completed
2 months until next milestone

Study Start

First participant enrolled

September 1, 2025

Completed
2 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

September 1, 2027

Expected
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

September 1, 2028

Last Updated

July 1, 2025

Status Verified

June 1, 2025

Enrollment Period

2 years

First QC Date

May 22, 2025

Last Update Submit

June 22, 2025

Conditions

Keywords

muscle injurymuscle injurieshamstringmuscle repairregenerationmuscle recoverythermal therapyCWIHWIcold water immersionhot water immersioncryotherapyheat therapyHD EMGmuscle tear

Outcome Measures

Primary Outcomes (3)

  • Time to return to sport in days

    The time necessary for the patient to be considered ready to return safely to full level of training in his sport, outside the control of a physiotherapist from the hospital. Measure: number of days until the patient is discharged to return to sport (in days).

    From enrollment until return to sport (assessed on average up to 6 weeks)

  • Isometric hamstring strength

    Weekly evolution of the isometric strength of the hamstring muscles using a custom built dynamometer using a strain gauge measuring Force in prone position and pushing the heel against a fixed resistance. Measure: Peak Force (in Newtons)

    Assessed weekly from the first rehabilitation session after enrolment to the last rehabilitation session before return to sport (assessed on average up to 6 weeks)

  • Rate of re-injury

    The number of re-injury occurence in the year following the injury. Re-injury considered as an hamstrings injury occuring in the same side than the original injury. Measure: Every re-injury occurring in the the year following return to sport discharge of the athlete.

    1 year post-RTS

Secondary Outcomes (4)

  • Self reported pain perception during injury palpation and physical activity (on a visual arbitrary scale 0-10)

    Daily until return to sport (assessed on average up to 6 weeks)

  • Muscle activation of each hamstring muscle (% difference activation in comparison the uninjured leg) as measured by High Density Electromyography. Determining the amplitude of the EMG signal, conduction velocity and motor units recruitment patterns

    Weekly until return to sport (assessed on average up to 6 weeks)

  • Mediolateral width and anterior/posterior depth of the total injured area (in mm)

    Study inclusion/return to sport (assessed on average up to 6 weeks)

  • Hamstring range of motion using MHFAKE measure (in degrees)

    Daily until return to sport (assessed on average up to 6 weeks)

Study Arms (3)

Hamstring injuries grade 1

EXPERIMENTAL

Grade 1 injury

Other: Cold water immersionOther: Hot water immersionOther: Physiotherapy only

Hamstring injuries grade 2

EXPERIMENTAL

Grade 2 injury

Other: Cold water immersionOther: Hot water immersionOther: Physiotherapy only

Hamstring injuries grade 3

EXPERIMENTAL

Grade 3 injury

Other: Cold water immersionOther: Hot water immersionOther: Physiotherapy only

Interventions

10 sessions of 15-minute Cold water bath (12°C) after the 10 first physiotherapy sessions.

Also known as: CWI, cryotherapy, cold
Hamstring injuries grade 1Hamstring injuries grade 2Hamstring injuries grade 3

10 sessions of 30 to 45-minute hot water bath (12°C) after the 10 first physiotherapy sessions.

Also known as: HWI, Heat therapy, hot
Hamstring injuries grade 1Hamstring injuries grade 2Hamstring injuries grade 3

Control group. Patients of this group will follow the classic rehabilitation treatment proposed by the physiotherapist and physician of Aspetar without thermal intervention.

Also known as: rehabilitation
Hamstring injuries grade 1Hamstring injuries grade 2Hamstring injuries grade 3

Eligibility Criteria

Age18 Years - 40 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Participant reported a sudden event
  • Acute onset pain located on the posterior thigh
  • Clinical diagnosis of an acute muscle injury defined as:
  • Localized pain during palpation of the area, Increasing pain during isometric contraction, Localized pain during specific tests.
  • MRI confirmed acute muscle lesion grade 1 - 2 - 3 (Pollock et al., 2014) of hamstring muscles
  • Available for physiotherapy treatment 4-5 days a week
  • MRI of the injury performed in Aspetar within 7 days from the injury
  • Available for follow-up
  • Compliant with heat or cold-water immersion

You may not qualify if:

  • Chronic condition, diabetes, or immune compromised state
  • Neurological, cardiovascular, pulmonary, or muscular pathology
  • Pacemaker wearer
  • Metallic prosthesis
  • Skin infection
  • Under medication: anti-inflammatory treatment, pain killer drugs, fluoroquinolone antibiotics
  • Contraindication to MRI
  • Previous verified or suspected lower limb muscle injury for the same leg and the same muscle within the last 6 months
  • Chronic lower limb muscle problems on the same muscle
  • Grade 0 and 4 muscle injury determined by MRI (Pollock et al., 2014)
  • Do not have an intention to return to full sport activity
  • Do not want to receive one of the therapies / Noncompliance with heat or cold therapies
  • Contraindication to heat
  • Do not want to comply with follow-up
  • Pregnancy

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Aspetar Orthopaedic and Sports Medicine Hospital

Doha, 0000, Qatar

Location

Related Publications (8)

  • D'Souza RF, Figueiredo VC, Markworth JF, Zeng N, Hedges CP, Roberts LA, Raastad T, Coombes JS, Peake JM, Mitchell CJ, Cameron-Smith D. Cold water immersion in recovery following a single bout resistance exercise suppresses mechanisms of miRNA nuclear export and maturation. Physiol Rep. 2023 Aug;11(15):e15784. doi: 10.14814/phy2.15784.

    PMID: 37549955BACKGROUND
  • Roberts LA, Raastad T, Markworth JF, Figueiredo VC, Egner IM, Shield A, Cameron-Smith D, Coombes JS, Peake JM. Post-exercise cold water immersion attenuates acute anabolic signalling and long-term adaptations in muscle to strength training. J Physiol. 2015 Sep 15;593(18):4285-301. doi: 10.1113/JP270570. Epub 2015 Aug 13.

    PMID: 26174323BACKGROUND
  • Peake JM, Roberts LA, Figueiredo VC, Egner I, Krog S, Aas SN, Suzuki K, Markworth JF, Coombes JS, Cameron-Smith D, Raastad T. The effects of cold water immersion and active recovery on inflammation and cell stress responses in human skeletal muscle after resistance exercise. J Physiol. 2017 Feb 1;595(3):695-711. doi: 10.1113/JP272881. Epub 2016 Nov 13.

    PMID: 27704555BACKGROUND
  • McGorm H, Roberts LA, Coombes JS, Peake JM. Turning Up the Heat: An Evaluation of the Evidence for Heating to Promote Exercise Recovery, Muscle Rehabilitation and Adaptation. Sports Med. 2018 Jun;48(6):1311-1328. doi: 10.1007/s40279-018-0876-6.

    PMID: 29470824BACKGROUND
  • Hafen PS, Abbott K, Bowden J, Lopiano R, Hancock CR, Hyldahl RD. Daily heat treatment maintains mitochondrial function and attenuates atrophy in human skeletal muscle subjected to immobilization. J Appl Physiol (1985). 2019 Jul 1;127(1):47-57. doi: 10.1152/japplphysiol.01098.2018. Epub 2019 May 2.

    PMID: 31046520BACKGROUND
  • Nagata I, Kawashima M, Miyazaki A, Miyoshi M, Sakuraya T, Sonomura T, Oyanagi E, Yano H, Arakawa T. Icing after skeletal muscle injury with necrosis in a small fraction of myofibers limits inducible nitric oxide synthase-expressing macrophage invasion and facilitates muscle regeneration. Am J Physiol Regul Integr Comp Physiol. 2023 Apr 1;324(4):R574-R588. doi: 10.1152/ajpregu.00258.2022. Epub 2023 Mar 6.

    PMID: 36878487BACKGROUND
  • Benoit S, Nicolas B, Gregoire MP, Francois B, Abdellah H, Hicham M, Said A, Guillaume C. Hot But Not Cold Water Immersion Mitigates the Decline in Rate of Force Development Following Exercise-Induced Muscle Damage. Med Sci Sports Exerc. 2024 Dec 1;56(12):2362-2371. doi: 10.1249/MSS.0000000000003513. Epub 2024 Jul 4. English, French.

    PMID: 38967392BACKGROUND
  • Kawashima M, Kawanishi N, Tominaga T, Suzuki K, Miyazaki A, Nagata I, Miyoshi M, Miyakawa M, Sakuraya T, Sonomura T, Arakawa T. Icing after eccentric contraction-induced muscle damage perturbs the disappearance of necrotic muscle fibers and phenotypic dynamics of macrophages in mice. J Appl Physiol (1985). 2021 May 1;130(5):1410-1420. doi: 10.1152/japplphysiol.01069.2020. Epub 2021 Mar 25.

    PMID: 33764172BACKGROUND

MeSH Terms

Conditions

Hyperthermia

Interventions

CryotherapyCold TemperatureDiathermyHot TemperatureRehabilitation

Condition Hierarchy (Ancestors)

Body Temperature ChangesSigns and SymptomsPathological Conditions, Signs and SymptomsHeat Stress DisordersWounds and Injuries

Intervention Hierarchy (Ancestors)

TherapeuticsTemperatureThermodynamicsPhysical PhenomenaWeatherAtmosphereEnvironmentEcological and Environmental PhenomenaBiological PhenomenaMeteorological ConceptsEnvironment and Public HealthHyperthermia, InducedAftercareContinuity of Patient CarePatient CareHealth ServicesHealth Care Facilities Workforce and Services

Central Study Contacts

Valentin M R Dablainville, Master

CONTACT

Marco Cardinale, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
CARE PROVIDER, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

May 22, 2025

First Posted

July 1, 2025

Study Start

September 1, 2025

Primary Completion (Estimated)

September 1, 2027

Study Completion (Estimated)

September 1, 2028

Last Updated

July 1, 2025

Record last verified: 2025-06

Locations