Calcular e apresentar tamanhos do efeito em trabalhos científicos (1): As limitações do p &lt; 0,05 na análise de diferenças de médias de dois grupos

Espírito‐Santo, Helena; Daniel, Fernanda

doi:10.7342/ismt.rpics.2015.1.1.14

Cited by 111 publications

(61 citation statements)

References 66 publications

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“…A possible reason for the data is not significant is that the LBPG presented low intensity of pain, with VAS of 0.89 ± 1.67cm on the day of the test. When we observed the electromyographic percentage values we noticed greater muscle activation in the LBPG when compared to the CG, for this reason, the effect size analysis was done, although the p value gives the probability of obtaining a significant statistic, it does not report on the clinical or practical importance of the results (26) .…”

Section: Discussionmentioning

confidence: 99%

“…M1 represents the mean of the LBPG, M2 is the CG average and the DP is the combined standard deviation (2.25) . The classification used was: low effect 0.20, medium 0.50 and value equal to or higher than 0.80 as a high effect, analyzed using the G * Power software (2,25,26) . (1) Table 1 presents the results of the characteristics of LBPG and CG participants.…”

Section: Discussionmentioning

confidence: 99%

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The trunk muscles behavior in women with low back pain in the test of flexion and extension of the trunk

Nava¹,

Tozim²,

Morcelli³

et al. 2020

mtprehabjournal

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INTRODUCTION: Chronic low back pain has a direct repercussion on the activities of daily living and the alteration of motor control is its main cause. This change leads to instability of the trunk stabilizer systems that control movements. Trunk flexion and extension movements associated with external disturbances may increase the potential for motor control error, resulting in injury and pain. OBJECTIVE: To evaluate and compare the recruitment of the trunk stabilizer muscles, with and without load, in the flexion and extension movements of the trunk. METHODS: Thirty-four sedentary women were evaluated, aged between 30 and 59 years, divided into: low back pain group (LBPG n = 19) and control group (CG n = 15). The protocol consisted of clinical evaluation, pain evaluation, strength test of extensor trunk muscles and trunk flexion and extension tests (TFET). Muscle electromyography in internal oblique (IO), lumbar multifidus (LM), rectus abdominis (RA), external oblique (EO) and lumbar iliacus (LI) were performed simultaneously. Multivariate analysis of variance was used with two-way repeated measurements. RESULTS: LBPG presented a trend of greater recruitment in all muscles and loads evaluated, with muscle activation up to 47% higher when compared to CG. In the intergroup comparison, the global muscles demonstrated a tendency for greater activation in LBPG, with values up to 53% higher when compared to CG, and predominantly high effect size d> 0.80. In the intragroup comparison, the IO, EO, LI and LM muscles of the LBPG presented ascending muscle recruitment with increased load the opposite was seen in the CG, which showed increased activation only in the LI and LM muscles. CONCLUSION: Women with low back pain need more muscle recruitment to remain stable and, in challenging situations, use inefficient strategies.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

The trunk muscles behavior in women with low back pain in the test of flexion and extension of the trunk

Nava¹,

Tozim²,

Morcelli³

et al. 2020

mtprehabjournal

View full text Add to dashboard Cite

show abstract

“…Additionally, GEE was used to test the main effects of NW in asymmetrical variables, and the Bonferroni post hoc test was performed to identify the significant differences at α < 0.05. Also, the effect size (ES) was calculated using the Hedges' g considering trivial (<0.20), small (0.20-0.49), moderate (0.50-0.79), large (>0.80), and too large (>1.30) effects between pre and post-tests at more affected and less affected segments in the asymmetrical variables [30,31]. Statistical analysis was performed by a highly trained researcher who was blinded to the participants, using SPSS software (Statistical Package for Social Sciences, version 21.0).…”

Section: Discussionmentioning

confidence: 99%

Effects of Nordic Walking on Gait Symmetry in Mild Parkinson’s Disease

et al. 2019

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Individuals with Parkinson’s disease (PD) have gait asymmetries, and exercise therapy may reduce the differences between more and less affected limbs. The Nordic walking (NW) training may contribute to reducing the asymmetry in upper and lower limb movements in people with PD. We compared the effects of 11 weeks of NW aerobic training on asymmetrical variables of gait in subjects with mild PD. Fourteen subjects with idiopathic PD, age: 66.8 ± 9.6 years, and Hoehn and Yard stage of 1.5 points were enrolled. The kinematic analysis was performed pre and post-intervention. Data were collected at two randomized walking speeds (0.28 m·s−1 and 0.83 m·s−1) during five minutes on the treadmill without poles. The more affected and less affected body side symmetries (threshold at 5% between sides) of angular kinematics and spatiotemporal gait parameters were calculated. We used Generalized Estimating Equations with Bonferroni post hoc (α = 0.05). Maximal flexion of the knee (p = 0.007) and maximal abduction of the hip (p = 0.041) were asymmetrical pre and became symmetrical post NW intervention. The differences occurred in the knee was less affected and the hip was more affected. We concluded that 11 weeks of NW training promoted similarities in gait parameters and improved knee and hip angular parameters for PD subjects.

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“…The results presented here indicated that all used risk measures were valid in terms of the contrasting groups, confirming results from previous research studies. Regardless of the effects, the intensity was low; Nevertheless, it might still be relevant (Espirito-Santo & Daniel, 2015) due to the difficulty in standardizing risk-taking measures (Boyer, 2006) and a greater human inclination to risk aversion (Linde & Vis, 2016;Weber et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

Modeling Risk-Taking from Different Measurement Instruments

Howat-Rodrigues

Tokumaru

Izar

2018

Paidéia (Ribeirão Preto)

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Risk-taking researches have presented different forms of construction measurements. First, we aimed at evaluating the evidence of validity of the instruments/methods based on external criteria by contrasting the groups on their gender under the three different risk-taking measures: a domain-specific scale and two decision-making tasks in risky situations (Driving a Car game and card games). After that, we aimed at constructing a risk-taking model from the analysis of the relationship between the instruments/methods. The 211 participants (121 women; M = 21.60 years old; SD = 2.19; and 91 men; M = 21.46 years old; SD = 2.0) answered the research in a single experimental session with an average duration of 30 min. Individually, the instruments presented criterion validity for contrasting groups. There was no correlation between the scores obtained for the different instruments in the risk-taking model. In conclusion, the data was designed in a three-factor structure indicating the multidimensionality of the risk-taking construct.

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Calcular e apresentar tamanhos do efeito em trabalhos científicos (1): As limitações do p < 0,05 na análise de diferenças de médias de dois grupos

Cited by 111 publications

References 66 publications

The trunk muscles behavior in women with low back pain in the test of flexion and extension of the trunk

The trunk muscles behavior in women with low back pain in the test of flexion and extension of the trunk

Effects of Nordic Walking on Gait Symmetry in Mild Parkinson’s Disease

Modeling Risk-Taking from Different Measurement Instruments

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