Prolonging the duration of cooling does not enhance recovery following a marathon.

Scand J Med Sci Sports

Department of Sport, Exercise & Rehabilitation, Northumbria University, Newcastle upon Tyne, UK.

Published: January 2021

Runners commonly utilize cryotherapy as part of their recovery strategy. Cryotherapy has been ineffective in mitigating signs and symptoms of muscle damage following marathon running and is limited by its duration of application. Phase change material (PCM) packs can prolong the duration of cooling. This study aimed to test the efficacy of prolonging the duration of cooling using PCM on perceptual recovery, neuromuscular function, and blood markers following a marathon run. Thirty participants completed a marathon run and were randomized to receive three hours of 15°C PCM treatment covering the quadriceps or recover without an intervention (control). Quadriceps soreness, strength, countermovement jump (CMJ) height, creatine kinase (CK), and high sensitivity C-reactive protein (hsCRP) were recorded at baseline, 24, 48, and 72 hours after the marathon. Following the marathon, strength decreased in both groups (P < .0001), with no difference between groups. Compared to baseline, strength was reduced 24 (P = .004) and 48 hours after the marathon (P = .008) in the control group, but only 24 hours (P = .028) in the PCM group. Soreness increased (P < .0001) and CMJ height decreased (P < .0001) in both groups, with no difference between groups. Compared to baseline, CMJ height was not reduced on any days in the PCM group but was reduced in the control group 24 (P < .0001) and 48 hours (P = .003) after the marathon. CK and hsCRP increased in both groups (P < .0001). Although the marathon run induced significant muscle damage, prolonging the duration of cooling using PCM did not accelerate the resolution of any dependent variables.

Download full-text PDF

Source
http://dx.doi.org/10.1111/sms.13822DOI Listing

Publication Analysis

Top Keywords

duration cooling
12
prolonging duration
8
marathon
6
cooling enhance
4
enhance recovery
4
recovery marathon
4
marathon runners
4
runners commonly
4
commonly utilize
4
utilize cryotherapy
4

Similar Publications

Introduction: Proactive esophageal cooling reduces injury during radiofrequency (RF) ablation of the left atrium (LA) for the treatment of atrial fibrillation (AF). New catheters are capable of higher wattage settings up to 90 W (very high-power short duration, vHPSD) for 4s. Varying power and duration however does not eliminate the risk of thermal injury.

View Article and Find Full Text PDF

Objectives: To determine the optimal cooling duration for children after out-of-hospital cardiac arrest (OHCA) using an adaptive Bayesian trial design.

Design: The Pediatric Influence of Cooling duration on Efficacy in Cardiac Arrest Patients (P-ICECAP) trial is a randomized, response-adaptive duration/dose-finding clinical trial with blinded outcome assessment. Participants are randomized to one of several cooling durations (0, 12, 18, 24, 36, 48, 60, 72, 84, or 96 hr).

View Article and Find Full Text PDF

Alongside the Chicxulub meteorite impact, Deccan volcanism is considered a primary trigger for the Cretaceous-Paleogene (K-Pg) mass extinction. Models suggest that volcanic outgassing of carbon and sulfur-potent environmental stressors-drove global temperature change, but the relative timing, duration, and magnitude of such change remains uncertain. Here, we use the organic paleothermometer MBT' and the carbon-isotope composition of two K-Pg-spanning lignites from the western Unites States, to test models of volcanogenic air temperature change in the ~100 kyr before the mass extinction.

View Article and Find Full Text PDF

Etiology, histology, and long-term outcome of bilateral testicular regression: a large Belgian series.

Hum Reprod Open

December 2023

Department of Internal Medicine and Pediatrics, Ghent University, Pediatric Endocrinology Service, Ghent University Hospital, Belgium, Ghent.

Article Synopsis
  • - The study investigates the long-term effects of bilateral testicular regression (BTR) in individuals, focusing on growth and development outcomes, particularly highlighting suboptimal penile growth often related to genetic factors.
  • - BTR, a rare condition with potential vascular and genetic origins, was analyzed in a cross-sectional study involving 35 participants recruited from eight pediatric endocrinology departments in Belgium over three years.
  • - Key findings revealed common maternal complications during pregnancy and identified specific genetic variants in some participants, while a centralized review of gonadal tissue contributed to understanding the condition's clinical implications.
View Article and Find Full Text PDF
Article Synopsis
  • - The study aimed to assess the feasibility of self-administering intranasal evaporative cooling for acute migraine relief at home, following previous success in a clinic setting.
  • - Conducted in southern Sweden, the trial involved 15 participants with episodic migraine, but only 6 completed the study due to discomfort and ineffective results.
  • - Findings indicated that the treatment was largely considered unpleasant and not significantly more effective than existing care methods, leading to the conclusion that it is not a viable option for home use.
View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!