The Effect of Reducing Soreness in Marathon Runners

This study has been completed.
Sponsor:
Information provided by (Responsible Party):
Northern Orthopaedic Division, Denmark
ClinicalTrials.gov Identifier:
NCT01512082
First received: January 10, 2012
Last updated: March 28, 2014
Last verified: March 2014

January 10, 2012
March 28, 2014
August 2011
May 2012   (final data collection date for primary outcome measure)
Thigh pain by walking [ Time Frame: 5 days ] [ Designated as safety issue: No ]

Primary outcome of thigh pain during semi-squat during 5 days following the marathon showed a significantly lower pain among the active group compared to the placebo group.

The outcome was thigh muscle pain measured on a 10 cm visual analog scale during a squat of 90 degrees three times a day; when they woke up, at 12 pm and 8 pm.

Same as current
Complete list of historical versions of study NCT01512082 on ClinicalTrials.gov Archive Site
Registration of injuries and symptoms from the musculoskeletal system. [ Time Frame: 5 days ] [ Designated as safety issue: No ]
The group that received active pulsed electromagnetic field was running for a significant longer time the first day following the marathon.
Same as current
Not Provided
Not Provided
 
The Effect of Reducing Soreness in Marathon Runners
The Effect of Pulsed Electromagnetic Field Therapy in Reducing Delayed Onset Muscle Soreness in Marathon Runners. A Double-blind Randomized Placebo-controlled Study.

Delayed onset muscle soreness is defined as the sensition of pain and discomfort in skeletal muscles that occurs after eccentric muscle actions or strenuous exercise like a marathon.

There is a growing body of clinical evidence which shows that noninvasive, nonpharmacologic pulsed electromagnetic fields have many clinical effects. Pulsed electromagnetic fields have shown to reduce pain in different groups of patients. This concerns patients with osteoarthritis, rheumatoid arthritis, diabetic neuropathy, fibromyalgia, distal radius fractures, pelvic pain and postoperative patients.

A marathon is a muscular strain. Physiologic effects of a marathon involves muscular and connective tissue damage which initiates an inflammatory response as well as release of metabolic factors like lactate and free radicals, intracellular metabolites and by-products of proteolysis.

The objective of this study was to investigate the efficacy of pulsed electromagnetic fields compared to placebo in reducing delayed onset muscle soreness in marathon runners.

Interventional
Not Provided
Allocation: Randomized
Endpoint Classification: Efficacy Study
Intervention Model: Single Group Assignment
Masking: Double Blind (Subject, Investigator)
Primary Purpose: Treatment
Contracture of Muscle, Thigh
  • Device: Pulsed electromagnetic field devices
    Every person received two active devices. The devices emitted 2-ms bursts of 27.12 MHz sinusoidal waves repeating at 2 bursts/s. Peak magnetic field intensity was 0.05 G which induced an average electric field of 10 mV in the tissue with an effect of 7.3 mW/cm3.
    Other Name: ActiPatch TM, Scandinavia ApS, Denmark
  • Device: Pulsed electromagnetic field devices
    Every persons received two sham pulsed electromagnetic field devices.
    Other Name: ActiPatch TM, Scandinavia ApS, Denmark
  • Experimental: Active pulsed electromagnetic field
    Intervention: Device: Pulsed electromagnetic field devices
  • Sham Comparator: Non-active pulsed electromagnetic field
    Intervention: Device: Pulsed electromagnetic field devices
Not Provided

*   Includes publications given by the data provider as well as publications identified by ClinicalTrials.gov Identifier (NCT Number) in Medline.
 
Completed
47
May 2012
May 2012   (final data collection date for primary outcome measure)

Inclusion Criteria:

  • Completion of a marathon
  • Age > 18 years

Exclusion Criteria:

- Unable to read and speak Danish

Both
18 Years and older
Yes
Contact information is only displayed when the study is recruiting subjects
Denmark
 
NCT01512082
N-20110021
No
Northern Orthopaedic Division, Denmark
Northern Orthopaedic Division, Denmark
Not Provided
Principal Investigator: Sten Rasmussen, M.D. Northern Orthopaedic Division, Aalborg University Hospital, Denmark
Northern Orthopaedic Division, Denmark
March 2014

ICMJE     Data element required by the International Committee of Medical Journal Editors and the World Health Organization ICTRP