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Experimental Physiology Nov 2017What is the topic of this review? This is the first review to look across the broad field of 'cold water immersion' and to determine the threats and benefits associated... (Review)
Review
What is the topic of this review? This is the first review to look across the broad field of 'cold water immersion' and to determine the threats and benefits associated with it as both a hazard and a treatment. What advances does it highlight? The level of evidence supporting each of the areas reviewed is assessed. Like other environmental constituents, such as pressure, heat and oxygen, cold water can be either good or bad, threat or treatment, depending on circumstance. Given the current increase in the popularly of open cold water swimming, it is timely to review the various human responses to cold water immersion (CWI) and consider the strength of the claims made for the effects of CWI. As a consequence, in this review we look at the history of CWI and examine CWI as a precursor to drowning, cardiac arrest and hypothermia. We also assess its role in prolonged survival underwater, extending exercise time in the heat and treating hyperthermic casualties. More recent uses, such as in the prevention of inflammation and treatment of inflammation-related conditions, are also considered. It is concluded that the evidence base for the different claims made for CWI are varied, and although in most instances there seems to be a credible rationale for the benefits or otherwise of CWI, in some instances the supporting data remain at the level of anecdotal speculation. Clear directions and requirements for future research are indicated by this review.
Topics: Adaptation, Physiological; Animals; Body Temperature Regulation; Cold Temperature; Cryotherapy; Drowning; Exercise Tolerance; History, 18th Century; History, 19th Century; History, 20th Century; History, 21st Century; History, Ancient; Humans; Hydrotherapy; Immersion; Risk Assessment; Risk Factors; Swimming; Water
PubMed: 28833689
DOI: 10.1113/EP086283 -
European Journal of Physical and... Oct 2017Rheumatoid arthritis (RA) is an autoimmune, chronic and inflammatory disease, which the affected patients present a higher cardiovascular mortality rate. Physical... (Review)
Review
INTRODUCTION
Rheumatoid arthritis (RA) is an autoimmune, chronic and inflammatory disease, which the affected patients present a higher cardiovascular mortality rate. Physical activities have been identified as the most important strategy to prevent cardiovascular diseases. However, the articular damage and the chronic pain caused by RA challenges its regular practice. Moreover, persons with RA tend to avoid PA due to the fear of exacerbating the inflammatory potential and pain. One alternative to avoid the collateral effects of the PA could be the cryotherapy. Therefore, this study aimed to review studies focused on the use of both PA and cryotherapy in RA patients and to identify evidences that both therapies could be combined in order to optimize the symptomatic treatment.
EVIDENCE ACQUISITION
Four databases (MEDLINE, CINAHL, Elsevier and PEDro) were searched to identify publications regarding RA patients, PA and cryotherapy intervention by the terms and operators (rheumatoid arthritis AND exercise OR physical activity OR activity OR training OR reconditioning OR cryotherapy OR cold OR immersion). The selected studies should at least present one measure of the aerobic capacity, disease activity or pain relief. Among 19 studies with RA patients identified, only 4 studies used PA combined with cryotherapy. The other 13 studies used physical activities and 2 studies used cryotherapy intervention.
EVIDENCE SYNTHESIS
The results of the physical activities combined with cryotherapy studies showed an improvement in the disease activity and pain relief, however without details of the physical activities intervention and an aerobic capacity. Among the physical activities studies, evidence was found suggesting that aerobic exercises and multiactivity exercises with high intensity are the more effective for improve the aerobic capacity.
CONCLUSIONS
Even if few studies on cryotherapy were found, there are enough evidences in the literature that demonstrate the benefits of this intervention on pain relief and disease activity. In summary, neither study found associated physical activities to improve aerobic capacity with cryotherapy to improve disease activity and pain relief. This may be an innovative therapeutic strategy to improve the aerobic capacity in arthritis patients and consequently reduce their cardiovascular risk while minimizing pain and disease activity.
Topics: Arthritis, Rheumatoid; Case-Control Studies; Cryotherapy; Disability Evaluation; Evidence-Based Medicine; Exercise; Female; Humans; Male; Pain Measurement; Patient Satisfaction; Quality of Life; Severity of Illness Index; Treatment Outcome
PubMed: 27996221
DOI: 10.23736/S1973-9087.16.04534-2 -
The Cochrane Database of Systematic... 2003Osteoarthritis is a degenerative joint disease that affects mostly the weight-bearing joints in the knees and hips. As the affected joint degenerates pain and... (Review)
Review
BACKGROUND
Osteoarthritis is a degenerative joint disease that affects mostly the weight-bearing joints in the knees and hips. As the affected joint degenerates pain and restriction of movement often occur. Inflammation can also occur sometimes resulting in edema of the joint with OA. Treatment focuses on decreasing pain and improving movement.
OBJECTIVES
To determine the effectiveness of thermotherapy in the treatment of OA of the knee. The outcomes of interest were relief of pain, reduction of edema, and improvement of flexion or range of motion (ROM) and function.
SEARCH STRATEGY
Two independent reviewers selected randomized and controlled clinical trials with participants with clinical and/or radiological confirmation of OA of the knee; and interventions using heat or cold therapy compared with standard treatment and/or placebo. Trials comparing head to head therapies, such as two different types of diathermy, were excluded.
SELECTION CRITERIA
Randomized and controlled clinical trials including participants with clinical or radiographical confirmation of OA of the knee; and interventions using heat or cold compared to standard treatment or placebo were considered for inclusion.
DATA COLLECTION AND ANALYSIS
Study results were extracted by two independent reviewers. Outcomes were continuous in nature (pain, strength, improvement) and were analyzed by weighted mean difference using a fixed effects model. Graphical data were used when table data were not available.
MAIN RESULTS
Three randomized controlled trials, involving 179 patients, were included in this review. The included trials varied in terms of design, outcomes measured, cryotherapy or thermotherapy treatments and overall methodological quality. In one trial, administration of 20 minutes of ice massage, 5 days per week, for 3 weeks, compared to control demonstrated a clinically important benefit for knee OA on increasing quadriceps strength (29% relative difference). There was also a statistically significant improvement, but no clinical benefit in improving knee flexion ROM (8% relative difference) and functional status (11% relative difference). Another trial showed that cold packs decreased knee edema.
REVIEWER'S CONCLUSIONS
Ice massage compared to control had a statistically beneficial effect on ROM, function and knee strength. Cold packs decreased swelling. Hot packs had no beneficial effect on edema compared with placebo or cold application. Ice packs did not effect pain significantly compared to control in patients with OA. More well designed studies with a standardized protocol and adequate number of subjects are needed to evaluate the effect of thermotherapy in the treatment of OA of the knee.
Topics: Cryotherapy; Humans; Hyperthermia, Induced; Osteoarthritis, Knee; Randomized Controlled Trials as Topic
PubMed: 14584019
DOI: 10.1002/14651858.CD004522 -
European Journal of Applied Physiology May 2022For centuries, cold temperatures have been used by humans for therapeutic, health and sporting recovery purposes. This application of cold for therapeutic purposes is... (Review)
Review
For centuries, cold temperatures have been used by humans for therapeutic, health and sporting recovery purposes. This application of cold for therapeutic purposes is regularly referred to as cryotherapy. Cryotherapies including ice, cold-water and cold air have been popularised by an ability to remove heat, reduce core and tissue temperatures, and alter blood flow in humans. The resulting downstream effects upon human physiologies providing benefits that include a reduced perception of pain, or analgesia, and an improved sensation of well-being. Ultimately, such benefits have been translated into therapies that may assist in improving post-exercise recovery, with further investigations assessing the role that cryotherapies can play in attenuating the ensuing post-exercise inflammatory response. Whilst considerable progress has been made in our understanding of the mechanistic changes associated with adopting cryotherapies, research focus tends to look towards the future rather than to the past. It has been suggested that this might be due to the notion of progress being defined as change over time from lower to higher states of knowledge. However, a historical perspective, studying a subject in light of its earliest phase and subsequent evolution, could help sharpen one's vision of the present; helping to generate new research questions as well as look at old questions in new ways. Therefore, the aim of this brief historical perspective is to highlight the origins of the many arms of this popular recovery and treatment technique, whilst further assessing the changing face of cryotherapy. We conclude by discussing what lies ahead in the future for cold-application techniques.
Topics: Cold Temperature; Cryotherapy; Hot Temperature; Humans; Immersion; Pain; Water
PubMed: 35195747
DOI: 10.1007/s00421-022-04915-5 -
Journal of Athletic Training Apr 2020Among sports-recovery methods, cold-water immersion (CWI), contrast-water therapy (CWT), and whole-body cryotherapy (WBC) have been applied widely to enhance recovery...
CONTEXT
Among sports-recovery methods, cold-water immersion (CWI), contrast-water therapy (CWT), and whole-body cryotherapy (WBC) have been applied widely to enhance recovery after strenuous exercise. However, the different timing effects in exercise-induced muscle damage (EIMD) after these recovery protocols remain unknown.
OBJECTIVE
To compare the effects of CWI, CWT, and WBC on the timing-sequence recovery of EIMD through different indicator responses.
DESIGN
Crossover study.
SETTING
Laboratory.
PATIENTS OR OTHER PARTICIPANTS
Twelve male middle- and long-distance runners from the Beijing Sport University (age = 21.00 ± 0.95 years).
INTERVENTION(S)
Participants were treated with different recovery methods (control [CON], CWI, CWT, WBC) immediately postexercise and at 24, 48, and 72 hours postexercise.
MAIN OUTCOME MEASURE(S)
We measured perceived sensation using a visual analog scale (VAS), plasma creatine kinase (CK) activity, plasma C-reactive protein (CRP) activity, and vertical-jump height (VJH) pre-exercise, immediately postexercise, and at 1, 24, 48, 72, and 96 hours postexercise.
RESULTS
For the VAS score and CK activity, WBC exhibited better timing-sequence recovery effects than CON and CWI ( < .05), but the CWT demonstrated better effects than CON ( < .05). The CRP activity was lower after WBC than after the other interventions ( < .05). The VJH was lower after WBC than after CON and CWI ( < .05).
CONCLUSIONS
The WBC positively affected VAS, CK, CRP, and VJH associated with EIMD. The CWT and CWI also showed positive effects. However, for the activity and timing-sequence effect, CWT had weaker effects than WBC.
Topics: Athletic Injuries; Cross-Over Studies; Cryotherapy; Humans; Hydrotherapy; Immersion; Male; Muscle, Skeletal; Myalgia; Pain Measurement; Running; Treatment Outcome; Young Adult
PubMed: 32160058
DOI: 10.4085/1062-6050-529-18 -
British Journal of Sports Medicine Jun 2007To determine the impact of the application of cryotherapy on nerve conduction velocity (NCV), pain threshold (PTH) and pain tolerance (PTO). (Randomized Controlled Trial)
Randomized Controlled Trial
OBJECTIVES
To determine the impact of the application of cryotherapy on nerve conduction velocity (NCV), pain threshold (PTH) and pain tolerance (PTO).
DESIGN
A within-subject experimental design; treatment ankle (cryotherapy) and control ankle (no cryotherapy).
SETTING
Hospital-based physiotherapy laboratory.
PARTICIPANTS
A convenience sample of adult male sports players (n = 23).
MAIN OUTCOME MEASURES
NCV of the tibial nerve via electromyogram as well as PTH and PTO via pressure algometer. All outcome measures were assessed at two sites served by the tibial nerve: one receiving cryotherapy and one not receiving cryotherapy.
RESULTS
In the control ankle, NCV, PTH and PTO did not alter when reassessed. In the ankle receiving cryotherapy, NCV was significantly and progressively reduced as ankle skin temperature was reduced to 10 degrees C by a cumulative total of 32.8% (p<0.05). Cryotherapy led to an increased PTH and PTO at both assessment sites (p<0.05). The changes in PTH (89% and 71%) and PTO (76% and 56%) were not different between the iced and non-iced sites.
CONCLUSIONS
The data suggest that cryotherapy can increase PTH and PTO at the ankle and this was associated with a significant decrease in NCV. Reduced NCV at the ankle may be a mechanism by which cryotherapy achieves its clinical goals.
Topics: Adult; Ankle; Cryotherapy; Humans; Ice; Male; Neural Conduction; Pain Threshold; Skin Temperature; Tibial Nerve
PubMed: 17224445
DOI: 10.1136/bjsm.2006.031237 -
The Cochrane Database of Systematic... Mar 2018Many women would like to avoid pharmacological or invasive methods of pain management in labour, and this may contribute towards the popularity of complementary methods... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
Many women would like to avoid pharmacological or invasive methods of pain management in labour, and this may contribute towards the popularity of complementary methods of pain management. This review examined the evidence currently available on manual methods, including massage and reflexology, for pain management in labour. This review is an update of the review first published in 2012.
OBJECTIVES
To assess the effect, safety and acceptability of massage, reflexology and other manual methods to manage pain in labour.
SEARCH METHODS
For this update, we searched Cochrane Pregnancy and Childbirth's Trials Register (30 June 2017), the Cochrane Central Register of Controlled Trials (CENTRAL; 2017, Issue 6), MEDLINE (1966 to 30 June 2017, CINAHL (1980 to 30 June 2017), the Australian New Zealand Clinical Trials Registry (4 August 2017), Chinese Clinical Trial Registry (4 August 2017), ClinicalTrials.gov, (4 August 2017), the National Center for Complementary and Integrative Health (4 August 2017), the WHO International Clinical Trials Registry Platform (ICTRP) (4 August 2017) and reference lists of retrieved trials.
SELECTION CRITERIA
We included randomised controlled trials comparing manual methods with standard care, other non-pharmacological forms of pain management in labour, no treatment or placebo. We searched for trials of the following modalities: massage, warm packs, thermal manual methods, reflexology, chiropractic, osteopathy, musculo-skeletal manipulation, deep tissue massage, neuro-muscular therapy, shiatsu, tuina, trigger point therapy, myotherapy and zero balancing. We excluded trials for pain management relating to hypnosis, aromatherapy, acupuncture and acupressure; these are included in other Cochrane reviews.
DATA COLLECTION AND ANALYSIS
Two review authors independently assessed trial quality, extracted data and checked data for accuracy. We contacted trial authors for additional information. We assessed the quality of the evidence using the GRADE approach.
MAIN RESULTS
We included a total of 14 trials; 10 of these (1055 women) contributed data to meta-analysis. Four trials, involving 274 women, met our inclusion criteria but did not contribute data to the review. Over half the trials had a low risk of bias for random sequence generation and attrition bias. The majority of trials had a high risk of performance bias and detection bias, and an unclear risk of reporting bias. We found no trials examining the effectiveness of reflexology.MassageWe found low-quality evidence that massage provided a greater reduction in pain intensity (measured using self-reported pain scales) than usual care during the first stage of labour (standardised mean difference (SMD) -0.81, 95% confidence interval (CI) -1.06 to -0.56, six trials, 362 women). Two trials reported on pain intensity during the second and third stages of labour, and there was evidence of a reduction in pain scores in favour of massage (SMD -0.98, 95% CI -2.23 to 0.26, 124 women; and SMD -1.03, 95% CI -2.17 to 0.11, 122 women). There was very low-quality evidence showing no clear benefit of massage over usual care for the length of labour (in minutes) (mean difference (MD) 20.64, 95% CI -58.24 to 99.52, six trials, 514 women), and pharmacological pain relief (average risk ratio (RR) 0.81, 95% CI 0.37 to 1.74, four trials, 105 women). There was very low-quality evidence showing no clear benefit of massage for assisted vaginal birth (average RR 0.71, 95% CI 0.44 to 1.13, four trials, 368 women) and caesarean section (RR 0.75, 95% CI 0.51 to 1.09, six trials, 514 women). One trial reported less anxiety during the first stage of labour for women receiving massage (MD -16.27, 95% CI -27.03 to -5.51, 60 women). One trial found an increased sense of control from massage (MD 14.05, 95% CI 3.77 to 24.33, 124 women, low-quality evidence). Two trials examining satisfaction with the childbirth experience reported data on different scales; both found more satisfaction with massage, although the evidence was low quality in one study and very low in the other.Warm packsWe found very low-quality evidence for reduced pain (Visual Analogue Scale/VAS) in the first stage of labour (SMD -0.59, 95% CI -1.18 to -0.00, three trials, 191 women), and the second stage of labour (SMD -1.49, 95% CI -2.85 to -0.13, two trials, 128 women). Very low-quality evidence showed reduced length of labour (minutes) in the warm-pack group (MD -66.15, 95% CI -91.83 to -40.47; two trials; 128 women).Thermal manual methodsOne trial evaluated thermal manual methods versus usual care and found very low-quality evidence of reduced pain intensity during the first phase of labour for women receiving thermal methods (MD -1.44, 95% CI -2.24 to -0.65, one trial, 96 women). There was a reduction in the length of labour (minutes) (MD -78.24, 95% CI -118.75 to -37.73, one trial, 96 women, very low-quality evidence). There was no clear difference for assisted vaginal birth (very low-quality evidence). Results were similar for cold packs versus usual care, and intermittent hot and cold packs versus usual care, for pain intensity, length of labour and assisted vaginal birth.Music One trial that compared manual methods with music found very low-quality evidence of reduced pain intensity during labour in the massage group (RR 0.40, 95% CI 0.18 to 0.89, 101 women). There was no evidence of benefit for reduced use of pharmacological pain relief (RR 0.41, 95% CI 0.16 to 1.08, very low-quality evidence).Of the seven outcomes we assessed using GRADE, only pain intensity was reported in all comparisons. Satisfaction with the childbirth experience, sense of control, and caesarean section were rarely reported in any of the comparisons.
AUTHORS' CONCLUSIONS
Massage, warm pack and thermal manual methods may have a role in reducing pain, reducing length of labour and improving women's sense of control and emotional experience of labour, although the quality of evidence varies from low to very low and few trials reported on the key GRADE outcomes. Few trials reported on safety as an outcome. There is a need for further research to address these outcomes and to examine the effectiveness and efficacy of these manual methods for pain management.
Topics: Analgesics; Cryotherapy; Female; Humans; Hyperthermia, Induced; Labor Onset; Labor Pain; Massage; Music Therapy; Pain Management; Pregnancy; Randomized Controlled Trials as Topic
PubMed: 29589380
DOI: 10.1002/14651858.CD009290.pub3 -
International Journal of Environmental... Oct 2020The oxi-inflammatory response is part of the natural process mobilizing leukocytes and satellite cells that contribute to clearance and regeneration of damaged muscle... (Randomized Controlled Trial)
Randomized Controlled Trial
The oxi-inflammatory response is part of the natural process mobilizing leukocytes and satellite cells that contribute to clearance and regeneration of damaged muscle tissue. In sports medicine, a number of post-injury recovery strategies, such as whole-body cryotherapy (WBC), are used to improve skeletal muscle regeneration often without scientific evidence of their benefits. The study was designed to assess the impact of WBC on circulating mediators of skeletal muscle regeneration. Twenty elite athletes were randomized to WBC group (3-min exposure to -120 °C, twice a day for 7 days) and control group. Blood samples were collected before the first WBC session and 1 day after the last cryotherapy exposure. WBC did not affect the indirect markers of muscle damage but significantly reduced the generation of reactive oxygen and nitrogen species (HO and NO) as well as the concentrations of serum interleukin 1β (IL-1β) and C-reactive protein (CRP). The changes in circulating growth factors, hepatocyte growth factor (HGF), insulin-like growth factor (IGF-1), platelet-derived growth factor (PDGF), vascular endothelial growth factor (VEGF), and brain-derived neurotrophic factor (BDNF), were also reduced by WBC exposure. The study demonstrated that WBC attenuates the cascade of injury-repair-regeneration of skeletal muscles whereby it may delay skeletal muscle regeneration.
Topics: Adult; Athletes; Athletic Injuries; Cryotherapy; Exercise; Humans; Inflammation; Muscle, Skeletal; Oxidative Stress; Reactive Nitrogen Species; Reactive Oxygen Species; Sports Medicine; Young Adult
PubMed: 33120891
DOI: 10.3390/ijerph17217855 -
Current Oncology (Toronto, Ont.) Jul 2021This review aimed to evaluate the efficacy of oral cryotherapy in the prevention of chemotherapy-induced oral mucositis using meta-analysis and trial sequential... (Meta-Analysis)
Meta-Analysis Review
BACKGROUND
This review aimed to evaluate the efficacy of oral cryotherapy in the prevention of chemotherapy-induced oral mucositis using meta-analysis and trial sequential analysis, as well as to assess the quality of the results by the Grading of Recommendations, Assessment, Development and Evaluation (GRADE) approach.
METHODS
A comprehensive search of three databases including Medline, Embase and Central was performed to identify randomized controlled trials that used oral cryotherapy for the prevention of chemotherapy-induced oral mucositis. The primary outcome was the incidence of oral mucositis for trials employing oral cryotherapy as the intervention for the prevention of oral mucositis. The meta-analysis was performed using the random-effects model and random errors of the meta-analyses were detected by trial sequential analysis.
RESULTS
A total of 14 RCTs with 1577 participants were included in the present meta-analysis. Patients treated with oral cryotherapy were associated with a significantly lower risk of developing oral mucositis of any grade (risk ratio (RR), 0.67 (95% CI: 0.56-0.81, < 0.05)). Findings from the subgroup analyses showed that oral cryotherapy significantly reduced the risk of oral mucositis in patients undergoing bone marrow transplantation (RR 0.69, CI: 0.54-0.89, < 0.05) as well as chemotherapy (RR 0.66, CI: 0.58-0.75, < 0.05). Findings from the trial sequential analysis suggested that the evidence on oral cryotherapy as a preventive intervention for oral mucositis in patients with solid malignancies receiving conventional chemotherapy was conclusive.
CONCLUSION
Oral cryotherapy is effective in preventing oral mucositis in patients undergoing chemotherapy for the management of solid malignancies. The use of oral cryotherapy in preventing oral mucositis in bone marrow transplantation settings showed promising efficacy, but the evidence is not conclusive and requires more high-quality randomized controlled trials.
Topics: Antineoplastic Agents; Cryotherapy; Humans; Neoplasms; Stomatitis
PubMed: 34436016
DOI: 10.3390/curroncol28040250 -
The Cochrane Database of Systematic... Feb 2012Many strategies are in use with the intention of preventing or minimising delayed onset muscle soreness and fatigue after exercise. Cold-water immersion, in water...
BACKGROUND
Many strategies are in use with the intention of preventing or minimising delayed onset muscle soreness and fatigue after exercise. Cold-water immersion, in water temperatures of less than 15°C, is currently one of the most popular interventional strategies used after exercise.
OBJECTIVES
To determine the effects of cold-water immersion in the management of muscle soreness after exercise.
SEARCH METHODS
In February 2010, we searched the Cochrane Bone, Joint and Muscle Trauma Group Specialised Register, the Cochrane Central Register of Controlled Trials (The Cochrane Library (2010, Issue 1), MEDLINE, EMBASE, Cumulative Index to Nursing and Allied Health (CINAHL), British Nursing Index and archive (BNI), and the Physiotherapy Evidence Database (PEDro). We also searched the reference lists of articles, handsearched journals and conference proceedings and contacted experts.In November 2011, we updated the searches of CENTRAL (2011, Issue 4), MEDLINE (up to November Week 3 2011), EMBASE (to 2011 Week 46) and CINAHL (to 28 November 2011) to check for more recent publications.
SELECTION CRITERIA
Randomised and quasi-randomised trials comparing the effect of using cold-water immersion after exercise with: passive intervention (rest/no intervention), contrast immersion, warm-water immersion, active recovery, compression, or a different duration/dosage of cold-water immersion. Primary outcomes were pain (muscle soreness) or tenderness (pain on palpation), and subjective recovery (return to previous activities without signs or symptoms).
DATA COLLECTION AND ANALYSIS
Three authors independently evaluated study quality and extracted data. Some of the data were obtained following author correspondence or extracted from graphs in the trial reports. Where possible, data were pooled using the fixed-effect model.
MAIN RESULTS
Seventeen small trials were included, involving a total of 366 participants. Study quality was low. The temperature, duration and frequency of cold-water immersion varied between the different trials as did the exercises and settings. The majority of studies failed to report active surveillance of pre-defined adverse events.Fourteen studies compared cold-water immersion with passive intervention. Pooled results for muscle soreness showed statistically significant effects in favour of cold-water immersion after exercise at 24 hour (standardised mean difference (SMD) -0.55, 95% CI -0.84 to -0.27; 10 trials), 48 hour (SMD -0.66, 95% CI -0.97 to -0.35; 8 trials), 72 hour (SMD -0.93; 95% CI -1.36 to -0.51; 4 trials) and 96 hour (SMD -0.58; 95% CI -1.00 to -0.16; 5 trials) follow-ups. These results were heterogeneous. Exploratory subgroup analyses showed that studies using cross-over designs or running based exercises showed significantly larger effects in favour of cold-water immersion. Pooled results from two studies found cold-water immersion groups had significantly lower ratings of fatigue (MD -1.70; 95% CI -2.49 to -0.90; 10 units scale, best to worst), and potentially improved ratings of physical recovery (MD 0.97; 95% CI -0.10 to 2.05; 10 units scale, worst to best) immediately after the end of cold-water immersion.Five studies compared cold-water with contrast immersion. Pooled data for pain showed no evidence of differences between the two groups at four follow-up times (immediately, 24, 48 and 72 hours after treatment). Similar findings for pooled analyses at 24, 48 and 72 hour follow-ups applied to the four studies comparing cold-water with warm-water immersion. Single trials only compared cold-water immersion with respectively active recovery, compression and a second dose of cold-water immersion at 24 hours.
AUTHORS' CONCLUSIONS
There was some evidence that cold-water immersion reduces delayed onset muscle soreness after exercise compared with passive interventions involving rest or no intervention. There was insufficient evidence to conclude on other outcomes or for other comparisons. The majority of trials did not undertake active surveillance of pre-defined adverse events. High quality, well reported research in this area is required.
Topics: Cryotherapy; Exercise; Humans; Immersion; Muscular Diseases; Pain; Pain Management; Randomized Controlled Trials as Topic
PubMed: 22336838
DOI: 10.1002/14651858.CD008262.pub2