scholarly journals Changes in Muscle Contractile Properties after Cold- or Warm-Water Immersion Using Tensiomyography: A Cross-Over Randomised Trial

Sensors ◽  
2020 ◽  
Vol 20 (11) ◽  
pp. 3193 ◽  
Author(s):  
Esther Mur Gimeno ◽  
Francesco Campa ◽  
Georgian Badicu ◽  
Jorge Castizo-Olier ◽  
Elisabet Palomera-Fanegas ◽  
...  
Keyword(s):  
Cold Water ◽  
Water Immersion ◽  
Randomised Trial ◽  
Biceps Femoris ◽  
Cold Water Immersion ◽  
Contractile Properties ◽  
Warm Water ◽  
Muscle Contractile Properties ◽  
Time Interaction ◽  
Muscle Contractile

Muscle contractile properties in clinical practice are often measured using either subjective scales or high-cost, inaccessible equipment. In this randomised cross-over study, we aimed to explore the use of tensiomyography (TMG) to assess changes in muscle contractile properties after cold- and warm-water immersion. The muscle contractile properties of the biceps femoris (BF) were assessed using TMG in 12 healthy active men (mean age 23 ± 3 years, Body Mass Index 22.9 ± 1.3 kg/m2) before and after a 20-min warm- or cold-water immersion over a period of 40 min. Muscle displacement (Dm) and contraction time (Tc) were registered as the main variables of the study. There was a significant condition by time interaction for Dm (p < 0.01). Post hoc analysis showed that, compared to the baseline, there was an increase in Dm 40 min after warm-water immersion (p < 0.01) and a decrease at 10 min after cold-water immersion (p < 0.01). No significant effect was found for Tc. Our results indicate that muscle contractile properties are affected by water temperature and time after the immersion; therefore, these factors should be taken into account when water-immersion is used as a recovery strategy.

Effect of Cold-Water Immersion on Skeletal Muscle Contractile Properties in Soccer Players

2011 ◽  
Vol 90 (5) ◽  
pp. 356-363 ◽  
Author(s):  
Juan Manuel García-Manso ◽  
Darío Rodríguez-Matoso ◽  
David Rodríguez-Ruiz ◽  
Samuel Sarmiento ◽  
Yves de Saa ◽  
...  
Keyword(s):  
Skeletal Muscle ◽  
Cold Water ◽  
Water Immersion ◽  
Cold Water Immersion ◽  
Contractile Properties ◽  
Soccer Players ◽  
Muscle Contractile Properties ◽  
Muscle Contractile

scholarly journals EFFECTS OF 8-WEEK ELECTRICAL MUSCLE STIMULATION ON THE MUSCLE CONTRACTILE PROPERTIES IN ADOLESCENT GIRLS

2019 ◽  
Vol 9 (2) ◽  
pp. 105-120 ◽  
Author(s):  
Sara Pregelj ◽  
Boštjan Šimunič
Keyword(s):  
Female Athletes ◽  
Biceps Femoris ◽  
Young Female ◽  
Contractile Properties ◽  
Knee Extensors ◽  
Muscle Stimulation ◽  
Electrical Muscle Stimulation ◽  
Muscle Contractile Properties ◽  
Muscle Contractile ◽  
Electrical Muscle

The study aimed to determine the effect of 8-week unilateral electrical muscle stimulation (EMS) training of leg muscles: vastus lateralis, vastus medialis and biceps femoris with the same number of muscle contractions in comparison to controls. Contractile properties were monitored by measuring the maximal voluntary isometric contraction (MVC) and the rate of force development in first 50 ms (RFD50) of knee extensors and flexors and tensiomyography of stimulated muscles. In addition, we also investigated the retained effect after 8 weeks without EMS training. Nineteen healthy young female athletes aged 15 to 18 years (average 16.4 ± .9 years) were randomly divided in a control group (CG; N=8) and experimental group (EG; N=11). CG performed maximal unilateral voluntary contractions while the EG performed also EMS training of the same leg by stimulating both vasti muscles and biceps femoris. There were no changes in CG after 8-weeks of maximal unilateral voluntary training; however, EG improved MVC in knee extensors (12.6%; P =.085) and RFD50 (142.1%; P =.049) where RFD50 retained increased also 8 weeks after EMS training (73%; P =.090). Tensiomyography revealed decreased amplitude (13.2%; P=.011) only in EG, representing higher muscle tone after 8-weeks of EMS in comparison to CG. Our findings indicate that EMS training has a positive effect on muscle contractile properties in young female athletes even after comparing to matched controls by the number of contractions.

Expired air volumes of maies and females during cold water immersion

1981 ◽  
Vol 59 (8) ◽  
pp. 843-846 ◽  
Author(s):  
T. J. Malkinson ◽  
S. Martin ◽  
P. Simper ◽  
K. E. Cooper
Keyword(s):  
Cold Water ◽  
Water Immersion ◽  
Pulmonary Ventilation ◽  
Cold Water Immersion ◽  
Warm Water ◽  
Human Volunteers ◽  
Significant Difference ◽  
Males And Females ◽  
Skin Temperatures ◽  
Expired Air

Expired air volumes were measured from a random population of adult male and female human volunteers before and during short-term immersion in either cold (13.53 ± 0.13 °C) or warm (33.18 ± 0.11 °C) water. A statistically significant difference was found in the pulmonary ventilation over the first 4 min of immersion between males and females when immersed in cold water. The swim suits worn could not account for the differences observed. No statistically significant difference in pulmonary ventilation was found between males and females during warm water immersion. A numerically smaller group of volunteers was preheated in a sauna before immersion in cold or warm water and this resulted in an attenuated ventilatory response. In this instance there is no statistically significant difference in ventilation between males and females. Also, in another small group of volunteers, surface and deep skin temperatures were continuously measured before and during immersion in cold water. The rates of change of deep skin temperature between males and females were found to be similar.

scholarly journals Intermittent Pneumatic Compression and Cold Water Immersion Effects on Physiological and Perceptual Recovery during Multi-Sports International Championship

2020 ◽  
Vol 5 (3) ◽  
pp. 45
Author(s):  
Ismael Martínez-Guardado ◽  
Daniel Rojas-Valverde ◽  
Randall Gutiérrez-Vargas ◽  
Alexis Ugalde Ramírez ◽  
Juan Carlos Gutiérrez-Vargas ◽  
...  
Keyword(s):  
Perceived Exertion ◽  
Pain Perception ◽  
Cold Water ◽  
Water Immersion ◽  
Biceps Femoris ◽  
Intermittent Pneumatic Compression ◽  
Cold Water Immersion ◽  
Hydration Status ◽  
Mechanical Function ◽  
Selection Of

Background: Congested-fixture championships are common during the selection of the athletes and teams participating in the Olympic Games. Throughout these tournaments, it is fundamental to perform optimally, rest well, and recover between competitions. This study aimed to (a) explore the effectiveness of the use of intermittent pneumatic compression (IPC) and cold water immersion (CWI) to recover muscle mechanical function (MuscleMechFx), hydration status (HydS), pain perception (PainPercep), rate of perceived exertion (RPE), sleep hours, and sleep quality (SleepQual) during a regional multi-sports international championship and (b) compare these results by sex. Methods: A total of 52 basketball and handball players were exposed to a recovery protocol after the competition as follows: IPC, sequential 20 min at 200 mmHg, and CWI, continuous 12 min at 12 °C. Results: MuscleMechFx presented differences by match and sex (p = 0.058) in time of contraction of biceps femoris; SleepQual and sleep hours were different between matches (<0.01). Conclusions: IPC + CWI seems to be effective to maintain some MuscleMechFx, HydS, and recovery and pain perception during a congested multi-sport tournament.

Metabolic rate and rewarming speed of hypothermic neonatal lambs given thermal assistance or added insulation

1986 ◽  
Vol 43 (1) ◽  
pp. 115-120 ◽  
Author(s):  
J. B. Robinson ◽  
M. Okamoto ◽  
B. A. Young ◽  
R. J. Christopherson
Keyword(s):  
Rectal Temperature ◽  
Cold Water ◽  
Water Immersion ◽  
Cold Water Immersion ◽  
Warm Water ◽  
Heat Lamp ◽  
Treatment Groups ◽  
Neonatal Lambs ◽  
Clinical Problems ◽  
All Treatment

ABSTRACTTo evaluate passive and active methods for rewarming hypothermic lambs, the rectal temperature of 19 neonatal lambs (4·9 (s.e. 0·34) kg) was reduced to 35°C by cold water immersion. Metabolic responses and change in rectal temperature were monitored as the hypothermic lambs recovered with added insulation in a 20 to 25°C air environment, or with thermal assistance provided by an infrared heat lamp, or through immersion in 38°C water. During the first 12 min of rewarming, the rise in rectal temperature in all treatment groups was linear, however it was more rapid with the lambs immersed in warm water (0·26°C/min; P < 0·05) as compared with the insulated lambs (0·21°C/min) and the lambs rewarmed with a heat lamp (0·22°C/min). During this 12-min period, the insulated lambs produced metabolic heat more rapidly than did the warm-water lambs, 13·6 v. 11·1 (s.e. 0·67) W/kg, respectively (P < 0·05). These data indicate that there was a substantial influx of heat which contributed to the increase in body temperature of the lambs immersed in warm water. Stabilization of rectal temperature occurred after 18 to 20 min in all treatment groups. The lambs recovered in all treatment groups, in addition, no clinical problems were observed in any of the lambs during the tests or subsequently when they were returned to their dams.

Patient Involvement in Treatment Decision Making Can Help or Hinder Placebo Analgesia

2014 ◽  
Vol 222 (3) ◽  
pp. 165-170 ◽  
Author(s):  
Andrew L. Geers ◽  
Jason P. Rose ◽  
Stephanie L. Fowler ◽  
Jill A. Brown
Keyword(s):  
Patient Involvement ◽  
Cold Water ◽  
Prior Experience ◽  
Water Immersion ◽  
Treatment Decision ◽  
Cold Water Immersion ◽  
Not Given ◽  
Placebo Analgesia ◽  
Treatment Decision Making ◽  
Immersion Experience

Experiments have found that choosing between placebo analgesics can reduce pain more than being assigned a placebo analgesic. Because earlier research has shown prior experience moderates choice effects in other contexts, we tested whether prior experience with a pain stimulus moderates this placebo-choice association. Before a cold water pain task, participants were either told that an inert cream would reduce their pain or they were not told this information. Additionally, participants chose between one of two inert creams for the task or they were not given choice. Importantly, we also measured prior experience with cold water immersion. Individuals with prior cold water immersion experience tended to display greater placebo analgesia when given choice, whereas participants without this experience tended to display greater placebo analgesia without choice. Prior stimulus experience appears to moderate the effect of choice on placebo analgesia.

Thermoregulatory responses to cold water at different times of day

1999 ◽  
Vol 87 (1) ◽  
pp. 243-246 ◽  
Author(s):  
John W. Castellani ◽  
Andrew J. Young ◽  
James E. Kain ◽  
Michael N. Sawka
Keyword(s):  
Cold Water ◽  
Water Immersion ◽  
Early Morning ◽  
Cold Water Immersion ◽  
Time Of Day ◽  
Mean Skin Temperature ◽  
Mean Body Temperature ◽  
Metabolic Heat ◽  
Body Temperature Change ◽  
The Mean

This study examined how time of day affects thermoregulation during cold-water immersion (CWI). It was hypothesized that the shivering and vasoconstrictor responses to CWI would differ at 0700 vs. 1500 because of lower initial core temperatures (Tcore) at 0700. Nine men were immersed (20°C, 2 h) at 0700 and 1500 on 2 days. No differences ( P > 0.05) between times were observed for metabolic heat production (M˙, 150 W ⋅ m−2), heat flow (250 W ⋅ m−2), mean skin temperature (T sk, 21°C), and the mean body temperature-change in M˙(ΔM˙) relationship. Rectal temperature (Tre) was higher ( P < 0.05) before (Δ = 0.4°C) and throughout CWI during 1500. The change in Tre was greater ( P < 0.05) at 1500 (−1.4°C) vs. 0700 (−1.2°C), likely because of the higher Tre-T skgradient (0.3°C) at 1500. These data indicate that shivering and vasoconstriction are not affected by time of day. These observations raise the possibility that CWI may increase the risk of hypothermia in the early morning because of a lower initial Tcore.

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