Skin Cooling and Force Replication at the Ankle in Healthy Individuals: A Crossover Randomized Controlled Trial.
Context: Proprioception of the ankle is determined by the ability to perceive the sense of position of the ankle structures, as well as the speed and direction of movement. Few researchers have investigated proprioception by force-replication ability and particularly after skin cooling. Objective: T...
| Publicado en: | Journal of Athletic Training (KnowledgeWorks Global, Ltd) Vol. 50; no. 6; pp. 621 - 629 |
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| Autores principales: | , , , , |
| Formato: | pictorial research tables/charts tracings randomized controlled trial Journal Article |
| Publicado: |
KnowledgeWorks Global, Ltd
Jun2015
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=109829338&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 109829338 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 10626050 HB36 jtl: Journal of Athletic Training (KnowledgeWorks Global, Ltd) issn: 10626050 maglogo: N pubinfo: dt: Jun2015 vid: 50 iid: 6 pid: 81084 pub: KnowledgeWorks Global, Ltd place: Richmond, Virginia artinfo: ui: 109829338 108515119 108515119 10.4085/1062-6050-49.6.07 NLM25761136 PMC4527446 109829338 ppf: 621 ppct: 8 formats: tig: atl: Skin Cooling and Force Replication at the Ankle in Healthy Individuals: A Crossover Randomized Controlled Trial. aug: au: dos Santos Haupenthal, Daniela Pacheco de Noronha, Marcos Haupenthal, Alessandro Ruschel, Caroline Nunes, Guilherme S. affil: Center of Health and Sports Sciences, University, State of Santa Catarina, Brazil sug: subj: Ankle Joint Physiology Dorsiflexion Muscle, Skeletal Physiology Proprioception Isometric Exercises Cryotherapy Human Education, Continuing (Credit) Randomized Controlled Trials Random Assignment Intervention Trials Crossover Design Exercise Physiology Male Female Adult Body Weights and Measures Ice Isometric Contraction Skin Temperature Evaluation Biophysical Instruments Multivariate Analysis of Variance Repeated Measures Brazil Intrarater Reliability Intraclass Correlation Coefficient Confidence Intervals Visual Perception Single-Blind Studies Perceptual Masking Power Analysis Data Analysis Software Effect Size P-Value Descriptive Statistics Adult: 19-44 years Male Female ab: Context: Proprioception of the ankle is determined by the ability to perceive the sense of position of the ankle structures, as well as the speed and direction of movement. Few researchers have investigated proprioception by force-replication ability and particularly after skin cooling. Objective: To analyze the ability of the ankle-dorsiflexor muscles to replicate isometric force after a period of skin cooling. Design: Randomized controlled clinical trial. Setting: Laboratory. Patients or Other Participants: Twenty healthy individuals (10 men, 10 women; age = 26.8 ± 5.2 years, height = 171 ± 7 cm, mass = 66.8 ± 10.5 kg). Intervention(s): Skin cooling was carried out using 2 ice applications: (1) after maximal voluntary isometric contraction (MVIC) performance and before data collection for the first target force, maintained for 20 minutes; and (2) before data collection for the second target force, maintained for 10 minutes. We measured skin temperature before and after ice applications to ensure skin cooling. Main Outcome Measure(s): A load cell was placed under an inclined board for data collection, and 10 attempts of force replication were carried out for 2 values of MVIC (20%, 50%) in each condition (ice, no ice). We assessed force sense with absolute and root mean square errors (the difference between the force developed by the dorsiflexors and the target force measured with the raw data and after root mean square analysis, respectively) and variable error (the variance around the mean absolute error score). A repeated-measures multivariate analysis of variance was used for statistical analysis. Results: The absolute error was greater for the ice than for the no-ice condition (F1,19 = 9.05, P = .007) and for the target force at 50% of MVIC than at 20% of MVIC (F1,19 = 26.01, P < .001). Conclusions: The error was greater in the ice condition and at 50% of MVIC. Skin cooling reduced the proprioceptive ability of the ankle-dorsiflexor muscles to replicate isometric force. pubtype: Academic Journal doctype: pictorial research tables/charts tracings randomized controlled trial Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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