Search results for "Sham group"
showing 5 items of 5 documents
Exercise with TENS does not augment gains in balance and strength for dancers
2020
Abstract Electrical stimulation modulates sensory feedback and improves motor performance, at least for individuals with compromised sensorimotor function. The purpose of this study was to determine the effectiveness of a 4-wk intervention with transcutaneous electrical nerve stimulation (TENS) at improving strength and balance in dancers. Nineteen dancers completed a timed, single-leg balance test, the Y-balance test, and contractions with the hip flexor and knee extensor muscles to assess maximal strength and force steadiness. They completed 4-wks of moderate-intensity bodyweight exercises (3x/wk) and were pseudo-randomized to either a Treatment or Sham group in a single-blind design. The…
An acute exposure to ozone impairs human olfactory functioning
2018
Ozone is a ubiquitous and irritant gas. We questioned whether an acute exposure to 0.2 ppm ozone impaired olfactory functioning.Healthy, normosmic subjects were exposed according to a parallel group design either to 0.2 ppm ozone (n = 15) or to sham (n = 13) in an exposure chamber for two hours. Possible irritating effects were assessed by questionnaire (range 0-5). The detection threshold of n-butanol was measured with the Sniffin' Sticks test before and after exposure. Olfactory thresholds were logarithmized and a two-way analysis of variance (ANOVA) with repeated measurements was carried out to test the effects of exposure (ozone vs. sham) and time (before vs. after exposure). Additional…
Transcranial direct current stimulation: Adverse effects and the efficacy of a commonly utilised sham protocol
2017
IntroductionTranscranial direct current stimulation (tDCS) is a promising neuromodulation method that has, for example, been used to treat depression. Nevertheless, the adverse effects of tDCS and the validity of the current standard tDCS sham protocols have received limited attention.ObjectivesTo evaluate the extent and types of tDCS adverse effects and to assess the reliability of sham stimulation as a control procedure for tDCS in a double-blind setting.AimsTo compare adverse effects between tDCS and sham stimulation groups, and to determine how well the participants and the experimenter are able to distinguish tDCS from sham stimulation.MethodsA sample of healthy volunteers received a 2…
Influence of rigid taping on the acromiohumeral distance in healthy recreational weightlifters
2021
BackgroundSubacromial pain syndrome is one of the most frequent injuries in overhead athletes, and it takes place when the acromiohumeral distance (AHD) is narrowed. Conservative treatment is the first approach to this syndrome, being shoulder taping one of the most used techniques. Although there are quite a few studies that analyse the effect of taping on the AHD, most of them do not include sham tapings. This study aimed to examine if the Relocation of the humeral head (RHH) taping produced an increase in the AHD in healthy recreationally weightlifter males, quantifying the change that may be due to a placebo effect.MethodsThe design of this study was a two-group pretest-posttest, in whi…
Vision-related function in the COPERNICUS and GALILEO trials
2014
Purpose To examine the impact of intravitreal aflibercept (IVT-AFL) injection on the 25-item National Eye Institute Visual Function Questionnaire (NEI VFQ) in the COPERNICUS and GALILEO trials. Methods Patients (pts) with macular oedema secondary to central retinal vein occlusion received IVT-AFL 2 mg (IVT-AFL 2q4) or sham monthly for 24 weeks. After Week 24 (W24) in COPERNICUS all pts were eligible to receive IVT-AFL based on visual and anatomical outcomes (IVT-AFL 2q4+PRN, sham+IVT-AFL PRN). In GALILEO, sham-treated pts received sham tx until W52. The NEI VFQ was administered at baseline (BL), W24 and W52. Total and subscale scores were compared between groups. W24 data were integrated an…