Predictors of aerobic physical activity and resistance training among Canadian adults with type 2 diabetes: An application of the Protection Motivation Theory

BackgroundIt is well established that both aerobic physical activity (PA) and resistance training are essential in the treatment and management of type 2 diabetes (T2D), but few studies have examined the determinants of both modes of PA in the same sample.PurposeThe main objective was to investigate the utility of the Protection Motivation Theory (PMT) in predicting aerobic PA and resistance training in a population sample of T2D adults.MethodsA total of 244 individuals completed self-report PMT constructs of vulnerability, severity, fear, response efficacy, self-efficacy and intention, and a 3-month follow-up that assessed aerobic PA and resistance training.ResultsPMT explained 19% (p < .001) and 20% (p < .001) of the variance respectively for aerobic PA and resistance training behaviour. Significant associations were found between self-efficacy (β = 0.45, p < .001) and gender (β = 0.15, p < .05) for aerobic PA, and self-efficacy (β = 0.48, p < .001) and age (β = 0.17, p < .05) for resistance training. PMT accounted for 43% (p < .001) and 56% (p < .001) of the variance respectively for aerobic PA and resistance training intentions. For aerobic PA, response efficacy (β = 0.14, p < .05) and self-efficacy (β = 0.59, p < .001) were significantly associated with intention, while response efficacy (β = 0.23, p < .001), self-efficacy (β = 0.64, p < .001) and age (β = 0.10, p < .05) were significantly related with resistance training intention.ConclusionsNone of the unique constructs of the PMT (i.e., perceived vulnerability, severity and fear) were significant with either aerobic and resistance training intention. These results may guide the development of effective PA interventions in people with T2D.     

Effect of an intensified training period on well-being indices,recovery and psychological aspects in professional soccer players

IntroductionIntensified training periods (IT) are associated with fatigue increase and psychological variations.ObjectiveThis investigation aimed to examine the perceived well-being, recovery quality and psychological responses during an IT.MethodsFifteen professional soccer players (mean ± SD: age: 24 ± 1 years, body mass: 71.3 ± 15.1 kg, height: 178.0 ± 6.1 cm) completed a 6-week training program consisting of 2 weeks of basic training (BT) and 4 weeks of IT. They were tested before (T1) and after (T2) the IT. Training load (TL) perception, strain and monotony were measured by the session-RPE method. Well-being indices (sleep quality, fatigue level, stress and delayed-onset muscular soreness [DOMS]) and total quality recovery (TQR) were recorded before each training session. The profile of mood states (POMS) and the Ottowa mental skills assessment tool (OMSAT)-3 were conducted before and after IT.ResultsNo significant difference was found after IT in OMSAT-3 scores (p > 0.05). TL, monotony and strain increased during IT (p < 0.001). Moreover, well-being indices (stress, sleep quality, fatigue level and DOMS) increased (p < 0.001) and TQR decreased (p < 0.001) during IT. The IT increased total mood disturbance (TMD, p < 0.001), tension (p < 0.05) and fatigue (p < 0.01) and decreased vigor (p < 0.001). Significant relationships were found between TL and Hooper Index (HI), TQR and TMD (r = 0.58, 0.65, −0.57, respectively; all p < 0.05).ConclusionThe findings of this investigation suggested that mental ability was not sensitive to fatigue caused by training load intensification. However, perceived well-being, recovery state and mood were found to be sensitive measures and may provide coaches with information about wellness and psychological state of soccer players during IT.     

Validation of the Portuguese version of the Negative Attitudes towards Robots Scale

IntroductionSocial robots are robots capable of a peer-to-peer communication with humans. Nomura, Kanda, and Suzuki (2004) developed the Negative Attitude towards Robots Scale (NARS) to measure the attitudes towards robots. NARS proved to be a useful tool to study human-robot interaction.ObjectiveTo assess the psychometric properties of the Portuguese version of the NARS (PNARS).Method and resultsFour studies were conducted. In study 1 (n = 300), a principal component analysis showed that PNARS comprised two components: the negative attitudes towards robots with human traits (NARHT) and towards interaction with robots (NATIR). In study 2 (n = 536), a confirmatory factorial analysis was conducted. Results confirmed the two-factor solution of PNARS obtained in study 1. Study 3 (n = 107) tested the nomological validity of PNARS and showed that PNARS, NARHT and NATIR correlated with attitudes towards technology. Study 4 (n = 59) tested the predictive validity of PNARS and showed that scores on NARHT and NATIR predicted the future intention to work with a social robot and its affective and cognitive antecedents.ConclusionGlobally, results indicate that PNARS is a reliable instrument to use in human-robot interaction studies.     

Improving outgroup attitudes in schools: A meta-analytic review

To provide information for educators, educational psychologists, school psychologists, and social psychologists, we conducted a quantitative meta-analytic test of n = 50 studies dating from 1995 to 2015 that evaluated the effects of in-school interventions on attitudes toward outgroup members (defined as members of different ethnic or religious backgrounds or different age groups, persons with either physical or mental disabilities, or persons with other distinctive features). Overall, the analysis revealed a mean effect size of d + = 0.36 with a 95% confidence interval that ranged from 0.17 to 0.55, indicating significant, moderate intervention effects, supporting the proposition that meaningful changes in outgroup attitudes can be obtained by applying anti-bias programs in schools. Results from our analysis did not provide evidence that teacher-led interventions produce positive outcomes, yet we found that interventions delivered by researchers promote positive attitudes toward outgroup members. Further, a closer examination demonstrated that one-on-one interventions are most effective at tackling intergroup attitudes. However, classroom-wide programs are more likely to be introduced into regular school activities because of their efficiency and the limited resources available for interventions.     

Augmenting In Vivo Exposure With Fear Antagonistic Actions: A Preliminary Test

The current study investigated the efficacy of an exposure augmentation strategy in which the phobic individual is encouraged to enact actions that are in direct opposition to the fear action tendencies associated with acrophobia. Participants (N = 88) meeting DSM-IV criteria for specific phobia (acrophobia) were randomized to (a) exposure with oppositional actions (E + OA), (b) exposure only (EO), (c) a credible placebo consisting of pulsed audio-photic stimulation (APS), or (d) a waitlist control (WLC). Treatment consisted of six, 6-min exposure trials. Participants were assessed with questionnaire, behavioral, and physiologic measures at pre- and posttreatment, and at a 1-month follow-up session. Participants receiving E + OA showed significantly greater improvement on behavioral and questionnaire measures than those in the other 3 conditions at both posttreatment and follow-up. Further, whereas treatment improvement generalized to an untrained context for those receiving E + OA, such was not the case for EO- and APS-treated participants. Findings suggest augmenting exposure with oppositional actions may enhance treatment outcome and thus warrant additional investigation with clinical samples.     

Acceptance and Commitment Therapy Group Treatment for Symptoms of Borderline Personality Disorder: A Public Sector Pilot Study

A pilot study of a brief group-based Acceptance and Commitment Therapy (ACT) intervention (12 two-hour sessions) was conducted with clients of public mental health services meeting four or more criteria for borderline personality disorder (BPD). Participants were randomly assigned to receive the ACT group intervention in addition to their current treatment (ACT + TAU; N = 21) or to continue with treatment as usual alone (TAU; N = 20). There was significantly more improvement from baseline for the ACT + TAU condition than the TAU condition on the primary outcome variable—self-rated BPD symptoms. The ACT + TAU gain was both clinically and statistically significant. The ACT + TAU condition also had significantly more positive change on anxiety and hopelessness, and on the following ACT consistent process variables: psychological flexibility, emotion regulation skills, mindfulness, and fear of emotions. For all but anxiety, the improvements for the ACT + TAU condition were significant, while the TAU condition had no significant changes on any measure. Follow-up was possible for only a small number of participants. The improvements gained by the ACT + TAU participants were maintained except for fear of emotions. Anxiety continued to improve, becoming significantly different from baseline at follow-up. Examination of mediators found that psychological flexibility, emotion regulation skills and mindfulness, but not less fear of emotions, mediated BPD symptoms. Psychological flexibility and emotion regulation skills also mediated hopelessness. There is a need for a larger trial, for comparison with other established treatments for BPD, and for conducting a trial of a longer intervention. Nonetheless, this pilot study suggests that a brief group-based ACT intervention may be a valuable addition to TAU for people with BPD symptoms in the public sector.     

Improving parent–child interactions through interactive reading workshops

IntroductionMany authors agree on the importance of training parents in early literacy strategies.ObjectiveThis study analyses the effects of an intervention to improve parent–child interactions during reading sessions, using interactive reading techniques.MethodThe design is exploratory and includes a treatment group (n = 22), which benefited from four interactive reading workshops, and a control group (n = 18), which did not benefit from specific training. Both groups read the same books, three times a week, for 10 weeks. The children come from middle socioeconomic backgrounds and attend preschool or kindergarten (grades 1–3).ResultsThe analyses were conducted on the basis of pre- and post-intervention video observations, coded using the Adult–Child Interactive Reading Inventory (ACIRI). Results from an ANCOVA show that parental behavior, and in turn child behavior, improves in post-intervention: parents improve their children's attention to the text and implement literacy strategies, while the children become more involved in the interactions.ConclusionInteractive reading workshops for parents improve the quantity and quality of parent–child interactions when reading books in a natural and playful context.     

The effect of belief in weight controllability on anti-fat attitudes: An experimental manipulation

IntroductionAnti-fat attitudes reflect a type of discrimination on the basis of body weight and are one of the last accepted types of social stigma.ObjectiveTo evaluate the effect of exposure to priming messages about the causes of obesity on attitudes toward fat people.MethodParticipants (n = 580, M age = 22.19, 64.1% female) were randomly assigned to one of three possible conditions and then provided responses on three AFA subscales: Dislike, Fear of fat, and Willpower.ResultsPriming participants with messages confirming/challenging the weight controllability belief was associated with higher/lower levels on Willpower respectively compared to the control group. Unexpectedly, participants in both confirming and challenging groups showed significantly higher scores on Fear of fat. No differences were found on scores indicating Dislike.ConclusionThe current findings emphasize the effect of exposure to information about the causes of obesity on weight controllability beliefs.     

Explanatory models of muscle performance in acromegaly patients evaluated by knee isokinetic dynamometry: Implications for rehabilitation

PurposeTo evaluate the effects of demographics and hormonal variations on knee muscle performance in patients with acromegaly and develop explanatory models of peripheral muscle function in these individuals.MethodsThis was a cross-sectional study in which 53 acromegalics and 27 healthy subjects underwent knee isokinetic dynamometry to evaluate the peak torque value for leg extension at 75°/s (PTE75) and 240°/s (PTE240). Separate multivariable linear regression models for the prediction of PTE75 and PTE240 were tested using variables commonly used as predictors in the clinical setting and other specific variables related to acromegaly.ResultsThe final prediction model for PTE75 (R² = 0.888; adjusted R² = 0.820, SE of bias = 16.2 Nm, p < 0.001) was −0.221 × growth hormone + 36.791 × sex_male = 1 − 27.407 × status_active = 1 − 0.690 × age + 148.071. The final prediction model for PTE240 (R² = 0.816; adjusted R² = 0.805, SE of bias = 8.8 Nm, p < 0.001) was −0.174 × growth hormone + 12.522 × sex_male = 1 − 0.520 × age + 98.099.ConclusionsIn acromegalics, high growth hormone levels, female gender, and older age are associated with reduced muscle strength and endurance. Additionally, active disease negatively affects peripheral muscle strength in these patients.     

Mechanisms underlying the self-talk–performance relationship: The effects of motivational self-talk on self-confidence and anxiety

ObjectivesThe present study examined the effects of motivational self-talk on self-confidence, anxiety, and task performance in young athletes.MethodsParticipants were 72 tennis players. The experiment was conducted in five sessions: baseline assessment, three training sessions, and final assessment. After the baseline assessment participants were divided and assigned randomly into experimental and control groups. The two groups followed the same training program with the experimental group practicing the use of self-talk. In the last session, the final assessment took place. A forehand drive test was used to evaluate task performance, and the Competitive Anxiety Inventory-2R was used to assess self-confidence and anxiety.ResultsA two-way mixed model MANOVA revealed that task performance improved for the experimental group (p < .01) and remained stable for the control group; self-confidence increased (p < .01) and cognitive anxiety decreased (p < .05) for the experimental group, whereas no changes were observed for the control group. Correlation analysis revealed that changes in task performance were moderately related to changes in self-confidence (p < .05).ConclusionsThe results of the study showed that self-talk can enhance self-confidence and reduce cognitive anxiety. Furthermore, it is suggested that increases in self-confidence can be regarded as a viable function explaining the facilitating effects of self-talk on performance.     

Applying an active lumbopelvic control strategy during lumbar extension exercises: Effect on muscle recruitment patterns of the lumbopelvic region

ObjectiveExamine whether implementing an active lumbopelvic control strategy during high load prone lumbar extension exercises affects posterior extensor chain recruitment and lumbopelvic kinematics.MethodsThirteen healthy adults acquired an optimal active lumbopelvic control strategy during guided/home-based training sessions. During the experimental session electromyography was used to evaluate the activity of the posterior extensor chain muscles during high load trunk/bilateral leg extension exercises with/without application of the strategy. Video-analysis was used to evaluate thoracic/lumbar/hip angles.ResultsImplementing the active lumbopelvic control strategy decreased the lordotic angle during trunk (p = 0.045; −3.2°) and leg extension exercises (p = 0.019; −10°). The hip angle was solely affected during trunk extension (p < 0.001; +9.2°). The posterior extensor chain (i.e. mean of the relative activity of all muscles (%MVIC) was recruited to a higher extent (p = 0.026; +9%) during trunk extension exercises performed with active lumbopelvic control. Applying the strategy during leg extension exercises lead to less activity of longissimus thoracic (p = 0.015; −10.2%) and latissimus dorsi (p = 0.010; −4.4%), and increased gluteus maximus activity (p ≤ 0.001; +16.8%).ConclusionsWhen healthy people are taught/instructed to apply an active lumbopelvic control strategy, this will decrease the degree of lumbar (hyper)lordosis and this influences the recruitment patterns of trunk and hip extensors. Hence, the possible impact on predetermined training goals should be taken into account by trainers.     

Partial body weight support treadmill training speed influences paretic and non-paretic leg muscle activation,stride characteristics,and ratings of perceived exertion during acute stroke rehabilitation

BackgroundIntensive task-specific training is promoted as one approach for facilitating neural plastic brain changes and associated motor behavior gains following neurologic injury. Partial body weight support treadmill training (PBWSTT), is one task-specific approach frequently used to improve walking during the acute period of stroke recovery (<1 month post infarct). However, only limited data have been published regarding the relationship between training parameters and physiologic demands during this early recovery phase.ObjectiveTo examine the impact of four walking speeds on stride characteristics, lower extremity muscle demands (both paretic and non-paretic), Borg ratings of perceived exertion (RPE), and blood pressure.DesignA prospective, repeated measures design was used.MethodsTen inpatients post unilateral stroke participated. Following three familiarization sessions, participants engaged in PBWSTT at four predetermined speeds (0.5, 1.0, 1.5 and 2.0 mph) while bilateral electromyographic and stride characteristic data were recorded. RPE was evaluated immediately following each trial.ResultsStride length, cadence, and paretic single limb support increased with faster walking speeds (p ⩽ 0.001), while non-paretic single limb support remained nearly constant. Faster walking resulted in greater peak and mean muscle activation in the paretic medial hamstrings, vastus lateralis and medial gastrocnemius, and non-paretic medial gastrocnemius (p ⩽ 0.001). RPE also was greatest at the fastest compared to two slowest speeds (p < 0.05).ConclusionsDuring the acute phase of stroke recovery, PBWSTT at the fastest speed (2.0 mph) promoted practice of a more optimal gait pattern with greater intensity of effort as evidenced by the longer stride length, increased between-limb symmetry, greater muscle activation, and higher RPE compared to training at the slowest speeds.     

The lowering of bilirubin levels in patients with neonatal jaundice using massage therapy: A randomized,double-blind clinical trial

ObjectiveDue to the effects of massage on various laboratory parameters (including those related to jaundice) in infants and the expansion of existing studies to achieve effective and safe therapy in the treatment of neonatal jaundice, this study aimed to investigate the effect of massage on bilirubin levels in cases of neonatal jaundice.MethodsIn this study, 134 patients were randomly assigned to either an intervention group (massage combined with phototherapy, n = 67) or a control group (phototherapy only, n = 67). In both groups, serum total bilirubin level and frequency of daily bowel movements were measured and compared during each of the first four days of treatment.ResultsBaseline levels of bilirubin were similar between the two groups (P > 0.05). During the measurements obtained post-intervention, significant differences surfaces between the two groups in bilirubin levels and frequency of daily bowel movements (P < 0.05 for both). No significant relationship was observed during days 1 and 2 of massage therapy between daily frequency of bowel movements and serum bilirubin level (P > 0.05); this relationship became significant during the third and fourth days (P < 0.05).ConclusionMassage therapy combined with phototherapy is an effective method for reducing serum total bilirubin in infants with neonatal jaundice.     

The Supraspinatus and the Deltoid – Not just two arm elevators

BackgroundThe debate on the clinical and functional role of the Supraspinatus in relation to the Deltoid necessitates experimental assessment of their contributions to arm elevation. Our goal was to evaluate the responses of both muscles to increased elevation moment loading.MethodsTwenty-three healthy volunteers applied 30 N elevation forces at the proximal and distal humerus, resulting in small and large glenohumeral elevation moment tasks. The responses of the Deltoid and Supraspinatus were recorded with surface and fine-wire electromyography, quantified by (EMG_distal − EMG_proximal), and normalized by the summed activations (EMG_distal + EMG_proximal) to R_Muscle ratios.ResultsDeltoid activity increased with large elevation moment loading (R_DE = .11, 95%-CI [.06–.16]). Surprisingly, there was no significant average increase in Supraspinatus activation (R_SSp = .06, 95%-CI [−.08 to .20]) and its response was significantly more variable (Levene’s test, F = 11.7, p < .001). There was an inverse association between the responses (ß = −1.02, 95%-CI [−2.37 to .32]), indicating a potential complementary function of the Supraspinatus to the Deltoid.ConclusionThe Deltoid contributes to the glenohumeral elevation moment, but the contribution of the Supraspinatus is variable. We speculate there is inter-individual or intra-muscular function variability for the Supraspinatus, which may be related to the frequently reported variations in symptoms and treatment outcome of Supraspinatus pathologies.     

Frequency and pattern of voluntary pedalling is influenced after one week of heavy strength training

Changes in voluntary rhythmic leg movement characteristics of freely chosen cadence (reflecting movement frequency) and tangential pedal force profile (reflecting movement pattern) were investigated during 4 weeks of (i) heavy hip extension strength training (HET, n = 9), (ii) heavy hip flexion strength training (HFT, n = 9), and (iii) no intervention (CON, n = 9). Training consisted of three 5RM–10RM sets per session, with two sessions/week. Submaximal ergometer cycling was performed before the training period (pretest) and after every week of training (test A1, A2, A3, and posttest). Strength increased by on average 25% in HET and 33% in HFT. Freely chosen cadence was only changed in HET, occurring already after 1 week of training. Thus, percentage reductions of cadence in HET at test A1, A2, A3, and posttest, with respect to the pretest value, amounted for maximally on average 17%, or 14 rpm, and were larger than the corresponding changes in CON (p = .037). Percentage increases in minimum tangential pedal force in HET at test A1, A2, A3, and posttest, with respect to the pretest value, were larger than the corresponding changes in CON (p = .024). Heavy hip flexion strength training did not cause such alterations.     

Investigating children's understanding of inversion using the missing number paradigm

The development of conceptual understanding in arithmetic is a gradual process and children may make use of a concept in some situations before others. Previous research has demonstrated that when children are given arithmetic problems with an inverse relationship they can infer that the initial and final quantities are the same (e.g. 15 + 8–8 = □). However, we do not know whether children can perform the complementary inference that if the initial and final quantities are the same there must be an inverse relationship (i.e. 15 + □ − 8 = 15 or 15 + 8 − □ = 15). This paper reports two experiments that presented inverse problems in a missing number paradigm to test whether children (aged 8–9) could perform both these types of inferences. Children were more accurate on standard inverse problems (a + b − b = a) than on control problems (a + b − c = d), and their performance was best of all on rearranged inverse problems (b − b + a = a). The children's performance on inverse problems was affected by the position of the missing number and also by the order of elements within the problem. This may be due to the different types of inferences that children must make to solve these kinds of inverse problems.     

Athletes trained using stable compared to unstable surfaces exhibit distinct postural control profiles when assessed by traditional and nonlinear measures

Athletes are assumed to exhibit better balance than non-athletes; however, few studies have examined the role of different types of sports on balance measures. Two athlete groups that experience divergent sport-specific balance training are stable- (i.e. basketball) and unstable-surface athletes (i.e. surfers). The purpose of this study was to quantify the effect of stable- compared to unstable-surface sports on postural stability.MethodsEight non-athletes (NON), eight stable-surface athletes (SSA) and eight unstable-surface athletes (USA) performed five 20-s quiet standing trials while ground reaction forces were recorded. Approximate entropy (ApEn), total excursion and root mean square distances (RMS) of the center of pressure position were calculated. Univariate ANOVAs with post hoc tests were conducted for each variable.ResultsApEn values were lower in SSA compared to NON in the ML direction (p = 0.012) and USA had lower ApEn values compared to SSA in the AP direction (p = 0.036). The USA had smaller AP RMS compared to SSA (p = 0.002) while the USA had greater ML RMS (p = 0.008) and resultant RMS values compared to SSA (p = 0.025).DiscussionThese data suggest that USA and SSA may exhibit direction-specific differences in balance strategy due to feedback paradigm.     

Impact of the telephone motivational interviewing on the colorectal cancer screening participation. A randomized controlled study

IntroductionWhile high participation rates ensure the cost-effectiveness of colorectal cancer screening programs, it is well known that postal requests do not achieve acceptable levels of participation.ObjectiveThis randomized controlled study aimed to test the impact of individualized phone counseling to prompt people aged 50 to 74 to take a colorectal cancer test.MethodTwo phone strategies were compared. The first involved computer-aided individualized counseling while the second was based on motivational interviewing. A total of 49,972 people were randomly assigned to a control group (CG) and to the individualized counseling (IC) and motivational interviewing (MI) telephone groups.ResultsA simple call doubled the participation rate per protocol (19.2% > 9.2%; p < .001; r = .131; OR = 2.374), and tripled it when the interview was conducted (30.4% > 9.2%; p < .001; r = .219; OR = 4.321). In an intention-to-treat analysis, the benefit of calling by phone remained even higher than postal requests (10% > 9.2%; p < .01; r = .014; OR = 1.103). However, there was no impact of the type of interview on participation rates.ConclusionThe results are discussed for future research.     

Traits of attention deficit/hyperactivity disorder in school-age children who stutter

PurposeThe purpose of this study was to explore whether parents of CWS reported the presence of ADHD symptoms that would warrant a referral to a psychologist to rule out the disorder. This study also aimed to describe the characteristics of the sample in terms of gender, family history of stuttering, presence of neurological impairment, concomitant diagnoses, and stuttering severity. Finally, this study sought to explore the possible statistical relations among these same variables.MethodsParticipants were 36 school-age CWS (32 males and 4 females) between the ages of 3.9 and 17.2 years (M = 10.4, SD = 4.0). Parent responses on the ADHD Rating Scale (Power et al., 2001) were collected via a retrospective chart review.ResultsFor this sample 58% (n = 21), of the participants met criteria for needing referral for additional evaluation for symptoms related to ADHD. A strong positive relation (r = .720, p < .001) was found between a reported family history of recovered stuttering and the presence of a concomitant diagnosis.ConclusionThe results of the present study demonstrate the need for further training and education for SLPs working with CWS regarding ADHD.Educational objectives: The reader will be able to (1) describe the main characteristics of ADHD, (2) discuss the evidence suggesting a possible relationship between ADHD and stuttering and (3) discuss how ADHD characteristics could impact clinical outcomes for CWS.