Effects of baby massage on neonatal jaundice in healthy Iranian infants: A pilot study

ObjectiveTo evaluate the effects of baby massage on transcutaneous bilirubin levels and stool frequency of healthy term newborns.MethodsThis Pilot study was conducted on 50 healthy newborns in Valiasr Hospital of IKHC. The infants were randomly allocated to two treatment (massage) and control group. The massage group received massage therapy (according to Touch Therapy) for four days from the first day postnatal while the control group received routine care. Main variable studied were transcutaneous bilirubin level (TCB) and stool frequency which were compared in two groups.ResultsThere were 50 newborns in the study 25 in each group (50%). There was a significant difference in the TCB levels between two groups (p = 0.000) with those in the massage group having lower bilirubin levels. As for the stool frequency there was a significant difference in two groups on the first day showing more defecation in the control group (p = 0.042) which on the consequent days was not significant and the frequencies were almost similar.ConclusionMassage group had a lower transcutaneous billirubin levels compared to the control group, thus, these pilot results indicate that massaging the newborns can be accompanied by a lower bilirubin level in the healthy term newborn.     

Massage therapy improves the development of HIV-exposed infants living in a low socio-economic,peri-urban community of South Africa

The aim of this study was to assess the effect of massage therapy on the growth and development of infants of HIV-infected mothers in a low socio-economic community in Cape Town. It was a prospective, randomised, controlled intervention trial that included massage therapy and control groups of HIV-infected mothers and their normal birth weight infants who were enrolled in the prevention of mother-to-child transmission (PMTCT) programme. Participants were recruited at the 6-week clinic visit and followed up every 2 weeks until their infants were 9 months of age. Mother–infant pairs in the massage therapy and control groups included 73 and 88 at 6 weeks and 55 and 58 at 9 months, respectively. Mothers in the intervention group were trained to massage their infants for 15 min daily. The socioeconomic status, immunity, relationship with the partner and mental pain of mothers; the infants’ dietary intake, anthropometry and development (Griffiths Mental Development Scales); and haematological and iron status of mothers and infants were assessed at baseline and follow-up. Nine infants (5.3%) were HIV-infected on the HIV DNA PCR test at 6 weeks. Despite significantly higher levels of maternal mental pain, infants in the massage therapy compared to control group scored higher in all five of the Griffiths Scales of Mental Development and significantly higher in the mean quotient (p = 0.002) and mean percentile (p = 0.004) for the hearing and speech scale at 9 months. Based on the mean difference in scores, the massage therapy group showed greater improvement for all five scales compared to the control group. The mean difference in scores was significantly greater for the hearing and speech quotient (21.9 vs. 11.2) (p < 0.03) and the general quotient percentile (19.3 vs. 7.7) (p = 0.03) in the massage therapy compared to the control group. These scales remained significant when adjusting for the relationship with the partner and maternal mental pain. Both groups had lower scores in the performance scale at 9 months although this was significantly worse in the control compared to the massage therapy group when adjusting for maternal CD4 count, anaemia, relationship with the partner and mental pain. There were no significant differences in the anthropometric measurements between the two groups. In conclusion, based on the Griffiths Scales, massage therapy improved the overall development and had a significant effect on the hearing and speech and general quotient of HIV-exposed infants in this study.     

Validation française d’une version brève de l’Échelle de satisfaction maritale

IntroductionFew measuring instruments of couple satisfaction maximizing the individual perception of the relationship exists in French. Settings such as Liaison psychiatry of a general hospital could benefit from a questionnaire adapting to a variety of clinical profiles.ObjectiveThis article proposes a French revision and validation of the Marital Satisfaction Scale (MSS; Roach, Frazier, and Bowden, 1981), a 48-item self-reported questionnaire designed to evaluate personal satisfaction towards one's couple relationship.MethodA sample of 349 community-dwelling individuals aged 20–85 answered the MSS, the Dyadic Adjustment Scale (DAS; Spanier, 1976), and a series of inquiries related to sociodemographics. As an initial Exploratory Factor Analysis (EFA) did not validate the unidimensional structure postulated by the original authors, the item number was reduced to 14.ResultsThis brief version of the scale (MSS-14) was subsequently validated with an internal replication analysis, a strong criterion-related validity with the DAS (r_s = 0.73, P < 0.001), an excellent internal consistency (α = 0.961, IC à 95% [0.955, 0.967]), a strong test-retest reliability (r_s = 0.90, CI à 95% [0.85, 0.93], P < 0.001, Z = − 0.033, P = 0.973), and strong item-to-total correlations (> 0.69). The MSS-14 could differentiate individuals with and without marital distress (AUC = 0.97), while no sociodemographic variable seemed to have a significant influence on couple satisfaction.ConclusionThe MSS-14 appears to be a reliable instrument to assess the personal satisfaction towards a couple relationship in community-dwelling adults.     

Perceived functions of playfulness in adults: Does it mobilize you at work,rest, and when being with others?

IntroductionLittle is known about what adults perceive as core functions of playfulness in their daily life.ObjectiveTo compile a list of perceived functions of playfulness from nominations of laypeople and to test the association of the productions with individual levels of playfulness as a personality trait.MethodThree hundred and twenty-four adults aged 18 to 62 (M = 31.6, SD = 11.5) listed perceived functions of playfulness in five areas (leisure and work and when being with work colleagues, friends, and their partner) and completed a questionnaire for playfulness.ResultsThe entries were grouped into seven broader categories; namely, (1) well-being; (2) humor and laughter; (3) mastery orientation; (4) creativity; (5) relationships; (6) coping strategies; and (7) coping with situations. Women noted more functions than men (t(297) = 2.99, p < .01, d = 0.35) but there were no gender differences in the playfulness scale. Individual levels of playfulness correlated only for men with a greater number of functions, while it was uncorrelated in the sample of women.ConclusionPeople see a broad range of functions for playfulness in their daily lives. This warrants further investigation on potential benefits of adult playfulness.     

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.     

The effect of swinging the arms on muscle activation and production of leg force during ski skating at different skiing speeds

The study investigated the effects of arm swing during leg push-off in V2-alternate/G4 skating on neuromuscular activation and force production by the leg muscles. Nine skilled cross-country skiers performed V2-alternate skating without poles at moderate, high, and maximal speeds, both with free (SWING) and restricted arm swing (NOSWING). Maximal speed was 5% greater in SWING (P < 0.01), while neuromuscular activation and produced forces did not differ between techniques. At both moderate and high speed the maximal (2% and 5%, respectively) and average (both 5%) vertical force and associated impulse (10% and 14%) were greater with SWING (all P < 0.05). At high speed range of motion and angular velocity of knee flexion were 24% greater with SWING (both P < 0.05), while average EMG of m. biceps femoris was 31% lower (all P < 0.05) in SWING. In a similar manner, the average EMG of m. vastus medialis and m. biceps femoris were lower (17% and 32%, P < 0.05) during the following knee extension. Thus, swinging the arms while performing V2-alternate can enhance both maximal speed and skiing economy at moderate and, in particularly, high speeds.     

Emotional intelligence and risky driving behaviour in adults

BackgroundRisky driving is considered a key predictive factor in road traffic accidents resulting in morbidity and mortality. Intra-individual emotional and personality factors have been shown to influence risk-taking behaviours among drivers. Despite this, there is limited research investigating the individual dimensions of these constructs and their relationship to risky driving behaviour (RDB). The current study therefore aimed to assess whether the individual dimensions of Emotional Intelligence (EI) were implicated in RDB.MethodsThe sample comprised 179 adults (55% male) aged between 18 and 64 years (M = 29.85, SD = 11.46) and who currently held a valid driver’s licence completed an online survey. Emotional Intelligence was assessed via self-report using the Swinburne University Emotional Intelligence Test (SUEIT), and RDB was measured using both the Brief Distracted Driving Scale (BDDS) and the Dula Dangerous Driving Index (DDDI).ResultsRegression analyses revealed that ‘Risky Driving’ was related to greater levels of Emotional Recognition and Expression and lesser Age [F_{(6, 172)} = 2.27, p < 0.05: R² = 7.3%], and the Negative Emotions sub-scale of DDDI, was significantly predicted by Emotional Control and Age [F_{(6, 172)} = 6.41, p < 0.05: R² = 18.3%]. A mediation model incorporating Age, Emotional Control scores and the Negative Emotions driving behaviour score indicated that a significant indirect effect of Age through Emotional Control (K² = 0.08, 95% CI [−0.02, −0.03]). (H [3] = 10.98, p = 0.012).ConclusionsLower scores on specific indices of EI are associated with increased rates of RDB, suggesting that poor emotional control may impede an individuals’ ability to make safe behavioural decisions when driving. The effect sizes for these models were small, however, and further research is needed to explore the contributory components in this association. Greater awareness of the role of emotional regulation and driving behaviours may be useful in preventing RDB in adults.     

Sense of body ownership in patients affected by functional motor symptoms (conversion disorder)

Background and aimPatients with functional neurological symptoms are commonly seen in neurological practice. Nevertheless their aetiopathology remains unclear. We have recently shown that patients affected by functional motor symptoms (FMS) present lower interoceptive awareness and higher alexithymia levels than healthy controls. Nevertheless sense of body ownership has never been studied in FMS patients.The aim of the present study was to systematically investigate the sense of body ownership, with the rubber hand illusion (RHI) paradigm, in patients with FMS and healthy controls.Materials and methodsWe included in the study 16 patients with FMS and 18 healthy controls (HC). Patients and HC were asked to complete the Toronto Alexithymia Scale (TAS-20) and the self-consciousness scale (self-objectification questionnaire). All participants underwent the RHI paradigm: illusionary experience was measured by self-report and by proprioceptive alteration.ResultsA Mann–Whitney U test performed revealed that FMS (median = 2.11) participants embodied the rubber hand to the same extent than HC participants (median = 2.0, Z = −0.86, p > 0.05, r = −0.15). The same test revealed no significant difference in the Proprioceptive Drift experience between FMS (median = 0.0) and HC participants (median = −0.5, Z = −0.96, p > 0.05, r = −0.16).ConclusionsOur study revealed that sense of body ownership is not impaired in patients affected by FMS. This, together with the results from our previous experiment (studying the interoceptive awareness), supports the hypothesis that interoceptive awareness and sense of body ownership may be dissociated in patients with FMS.     

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.     

Psychosocial determinants of road traffic offences in a sample of Spanish male prison inmates

ObjectiveThere is very little information available about the characteristics of drivers convicted for traffic offences. The objective of this study was to perform a comparative analysis of the psychosocial characteristics of Spanish prison inmates convicted of road traffic offences (CRTOs), drivers serving a prison sentence for other types of offence (DCOOs), and drivers with no criminal record (DNCRs), in order to identify the psychosocial predictors associated with RTOs.MethodsThe study sample comprised 434 male participants divided into three groups: CRTO (n = 240); DCOO (n = 85); and DNCR (n = 105). Instruments included an interview on sociodemographic data, driving behaviour, and past offences, as well as a set of tests to evaluate personality traits (ZKPQ-50CC), driving-related aspects (MDSI-S and DAS), and alcohol dependence (AUDIT).ResultsA logistic regression analysis showed the following to be reliable predictors of RTOs: low education level (p < .05); having been involved in several road traffic accidents (p < .001); having received several fines (p < .001); a high score on the MDSI-S Risky subscale (p < .05); a low score on the MDSI-S Careful subscale (p < .05); AUDIT scores > 8 (p < .05), and repeatedly driving whilst under the influence of alcohol (p < .05).ConclusionsThe results obtained have significant practical implications for designing and implementing traffic offenders programmes.     

Establishment of a schizophrenic animal model through chronic administration of MK-801 in infancy and social isolation in childhood

BackgroundAlthough an increasing amount of evidence supports a “two-hit” hypothesis for the neurodevelopmental model of schizophrenia, there has been no development in animal models to test this hypothesis.MethodsAn animal model was established by chronic administration of 0.1, 0.3, and 0.5 mg/kg MK-801 in P7-P21 rats followed by four weeks of social isolation in childhood and then five days of social housing. Animal behaviors were measured by the open field (OF) test, the novel object recognition (NOR) test, the prepulse inhibition (PPI) test, and the elevated plus maze (EPM) test.ResultsWe found a significant decrease in the NOR index in adolescent rats compared to saline control rats when administering 0.5 mg/kg of MK-801 (P = 0.02). We found that social isolation had no significant effect on NOR index, though social isolation significantly increased the total distance traveled and significantly decreased the resting time in adolescent rats in the OF test (P < 0.001 and P = 0.003, respectively). In contrast, we observed that MK-801 administration showed no significant effects on either total distance traveled or resting time. Both MK-801 administration and social isolation had no significant effect on the percent of PPI and startle amplitudes in adolescent rats. Social isolation significantly reduced the open arm entries in adolescent rats in the EPM test (P = 0.023), but it did not reduce the ratio to enter the open arms and the stay time in open arm. Administration of MK-801 showed no significant effect on the indexes of entering the open arms in the EPM test on adolescent rats.ConclusionMK-801 intervention in infancy is associated with the damage of long-term visual memory, whereas social isolation in childhood is associated with the increased spontaneous activity and anxiety levels. Administration of MK-801 in infancy and social isolation in childhood are two independent factors on the neurodevelopmental defects.     

Inbreeding depression and IQ in a study of 72 countries

In this ecological study, a robust negative correlation of r = ? .62 (P < .01) is reported between national IQs and consanguinity as measured by the log₁₀ transformed percentage of consanguineous marriages for 72 countries. This correlation is reduced in magnitude, when IQ is controlled for GDP per capita (r = ? .41, P < .01); education index (r = ? .40, P < .01); and democracy index (r = ? .42, P < .01). Multiple regression analysis revealed that in the absence of the democracy index; percentage consanguineous marriages, education index and GDP per capita all exhibited stable final standardized β coefficients, however consanguinity had the least impact (β = 0, P > .05) whereas GDP per capita had the highest (β = .35, P > .01). This result is interpreted in light of cultural feedback theory, whereby it is suggested that consanguinity could subtly influence IQ at larger scales as a result of small IQ handicaps bought about through inbreeding being amplified into much larger differences through their effect on factors that maximize IQ such as access to education and adequate nutrition. Finally, consideration is given to future potential research directions.     

Screening Solid Foods Infants 1 (SSFI-1) development of a screening tool to detect problems in the transition from milk to solid food in infants from six to nine months of age

AimTo establish the psychometric properties of a newly developed screening tool Screening Solid Foods Infants 1 (SSFI-1) used by early childhood professionals, to detect problems in the transition from milk to solid food of smooth consistency in infants 6–9 months of age.MethodsThe SSFI-1 score was filled out by the parents of a subgroup with term infants (n = 35); healthy preterm infants (n = 26); infants with comorbidity (n = 17); infants with feeding problems (n = 13). Internal consistency, reproducibility, construct, criterion and related validity was evaluated.ResultsThe preterm subgroup differed significantly in age when starting with fruits/vegetables and period of experience (p < 0.01). The SSFI-1 was sufficiently reliable for the total group and term subgroup (α = 0.78 and 0.76), but not for the preterm and comorbidity/feeding problem subgroup (α = 0.51 and 0.69). Inter-rater reliability was high for the total score (n = 25, ICC r = 0.93), and moderate to good for individual items (weighted kappa range 0.55–0.95). Validity was confirmed by significantly higher scores for the comorbidity/feeding problem subgroups and clinically distinguishable subgroups (p < 0.05) and area under the curve values > 0.78. The initial 10-item screening tool was modified to a seven item screening tool. A SSFI-1 score of 4, +2 SD of the term subgroup, had 76.9% sensitivity and 82.1% specificity, for detecting the presence of a feeding problem.ConclusionThe seven-item screening tool Screening Solid Foods 1 may be used as a screening tool for term infants. Further testing of the SSFI-1 in new infants is needed, to confirm reliability and validity both for term, preterm and (risk for) feeding problem infants.     

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.     

Contralateral pelvic drop during gait increases knee adduction moments of asymptomatic individuals

PurposeThe current study purpose was to investigate the effects of contralateral pelvic drop gait on the magnitude of the knee adduction moment (KAM) within asymptomatic individuals.Methods15 participants walked on a dual belt instrumented treadmill while segment motions and ground reaction forces were recorded. Participants completed typical gait trials and pelvic drop gait trials. The net external KAM was calculated using inverse dynamics. Peak and impulse were identified. Frontal plane hip abduction/adduction and pelvic drop were determined. Correlations and paired t-tests were used for statistical hypothesis testing (alpha = 0.05).ResultsPeak hip adduction angle reached 4° (±6°) during pelvic drop trials compared to 0° (±6°) in the typical gait trials (p < 0.05) equating to 4° of pelvic drop. KAM impulse was higher in the pelvic drop trial (0.16 Nm s/kg ± 0.04) compared to the typical gait trial (0.13 Nm s/kg ± 0.05) (p < 0.001). Peak KAM was higher in the pelvic drop trial (0.55 Nm/kg ± 0.15) compared to the typical gait trial (0.40 Nm/kg ± 0.109) (p < 0.001). Correlations between change in KAM and change in hip adduction moment and pelvic drop were r > 0.80 (p < 0.001).ConclusionPelvic drop gait increased KAM peak and impulse. Results have implications for understanding relationships between frontal plane hip movement and the knee adduction moment during gait.     

Personal values and unsanctioned aggression inherent in contact sports: The role of self-regulatory mechanisms,aggressiveness, and demographic variables

IntroductionTo date, research-examining factors related to the sociocognitive self-regulatory mechanisms governing unsanctioned aggression have received scant attention in applied sport psychology.ObjectiveA mediating model as influenced by various demographic variables was applied to explore the relationships between athletes’ personal values and their unsanctioned aggression directly and indirectly through the mediating role of resistive self-regulatory efficacy, moral disengagement, and aggressiveness.MethodA sample of 301 French competitors of different age (young: n = 200 and adult: n = 101), gender (male: n = 172 and female: n = 129), type of sport (high: n = 131 and low contact: n = 170), level of competition (beginner: n = 115, intermediate: n = 110, and advanced: n = 76), and length of practice (brief: n = 109, intermediate: n = 49, and extensive: n = 143) completed a questionnaire assessing the aforementioned variables.ResultsStructural equation modelling demonstrates that self-transcendence and self-enhancement values have only indirect negative and positive effects, respectively, on unsanctioned aggression through the full mediating effect of the mediators. Also, age, gender, and type of sport were predictive only of some personal values and mediators.ConclusionThese findings offer evidence that resistive self-regulatory efficacy, moral disengagement, and aggressiveness are mediators that fully govern the impact of athletes’ personal values and certain demographic variables on their unsanctioned aggression. Several limitations, implications and suggestions for further research are discussed.     

Motivational characteristics of obese adolescents toward physical activity: Contribution of self-determination theory

IntroductionRegular physical activity (PA) practice represents a key component of obesity treatment.ObjectiveBased on self-determination theory (SDT), this cross-sectional study aimed to explore the motivational characteristics associated with PA practice among obese adolescents.MethodOne hundred and five overweight or obese adolescents (mean age = 15 years old, SD = 2.69) were questioned about their level of PA, motivational regulations toward PA and level of satisfaction of basic psychological needs.ResultsData revealed that satisfaction of autonomy and relatedness needs is positively associated with autonomous forms of motivation (e.g., for integrated regulation β = .44; and 0.35, respectively, p < .01). Otherwise, non-satisfaction of the needs of autonomy and competence is associated with the most controlled forms of motivation (e.g., for external regulation β = −.27, p < .01; and −.18, p < .05, respectively). In turn, a high level of identified regulation, a low level of external regulation and a high level of satisfaction of the need for competence are associated with weekly PA (β = .28; −.19 and .24, respectively, p < .05).ConclusionSDT appears as an interesting theoretical framework to explore motivational antecedents of PA among obese adolescents.     

Social physique anxiety and physical activity: A self-determination theory perspective

ObjectiveUsing self-determination theory [Deci, E. L., & Ryan, R. M. (1985). Intrinsic motivation and self-determination in human behavior. New York, NY: Plenum Press; Ryan, R. M., & Deci, E. L. (2002). An overview of self-determination theory: an organismic-dialectical perspective. In E. L. Deci, & R. M. Ryan, (Eds.), Handbook of self-determination research (pp. 3–33). Rochester, NY: University of Rochester Press.] as a framework, this study examined the relationships between social physique anxiety (SPA) and physical activity-related psychological needs, motivation, and reported behavior.MethodThree hundred and eighty one males and females (M_age = 18.69, SD = 1.15) completed a self-administered questionnaire package.ResultsResults revealed a good measurement model for the total sample (χ² = 592.52; df = 238; RMSEA = .063; CFI = .94; SRMR = .05) and multi-group invariance indicated that the male and female measurement models were comparable. The structural model was adequate for the total sample (χ² = 638.69; df = 243; RMSEA = .065; CFI = .94; SRMR = .06) and accounted for 36% of the variance in reported physical activity behavior. In addition, the structural model was partially gender invariant.ConclusionsFindings supported the proposed motivational sequence in which SPA directly influenced need satisfaction, and indirectly influenced physical activity motivation and behavior. From a practical perspective, interventions aimed at decreasing SPA may be helpful in promoting physical activity motivation and behavior.     

Treadmill based reference running data for healthy subjects is dependent on speed and morphological parameters

ObjectiveTo obtain spatiotemporal and dynamic running parameters of healthy participants and to identify relationships between running parameters, speed, and physical characteristics.MethodA dynamometric treadmill was used to collect running data among 417 asymptomatic subjects during speeds ranging from 10 to 24 km/h. Spatiotemporal and dynamic running parameters were calculated and measured.ResultsResults of the analyses showed that assessing running parameters is dependent on running speed. Body height correlated with stride length (r = 0.5), cadence (r = −0.5) and plantar forefoot force (r = 0.6). Body mass also had a strong relationship to plantar forefoot forces at 14 and 24 km/h and plantar midfoot forces at 14 and 24 km/h.ConclusionThis reference data base can be used in the kinematic and kinetic evaluation of running under a wide range of speeds.     

Effects of whole body vibration on spasticity and lower extremity function in children with cerebral palsy

AimThe aim of this study was to evaluate the effect of whole body vibration (WBV) on lower extremity spasticity and ambulatory function in children with cerebral palsy (CP) with a complete crossover design.MethodSixteen participants aged 9.8(2.3) years received a 20-min WBV and a control condition in a counterbalanced order on two separate days. Change scores of each outcome variable were used to show the improvement.ResultsRepeated-measures analyses revealed significant differences in condition scores among variables including active range-of-motion (active ROM, increased), relaxation index (RI, increased), Modified Ashworth Scale (MAS, decreased), timed up-and-go (TUG, decreased), and Six Minute Walk Test (6MWT, increased). Significant differences were also found in time change scores for MAS and 6MWT. Correlation results revealed that TUG was significantly correlated with RI (r = −.512, p = .042), and 6MWT (r = −.700, p = .003).InterpretationThis study suggested that WBV intervention can control the spasticity, enhance ambulatory performance and increase active ROM. Along with previous results, data from this study revealed the potential use of WBV in clinical rehabilitation in children with CP. Future investigations should focus on finding the combination of treatment frequency and duration to achieve an ideal result.