Associations between fitness levels and self-perceived health-related quality of life in community - dwelling for a group of older females.

BACKGROUND: For older adults perceived quality of life has been linked to the ability to accomplish everyday tasks, a functional capacity which is thought to be based upon physical fitness. Although there is a relationship between physical activity and quality of life in older adults, the fitness of older adults and its relationship to quality of life needs more investigation. Therefore, the purpose of this study was to examine the associations between self-reported health-related quality of life and physical fitness in community-dwelling older females. METHODS: A cross-sectional study between four different age groups in retirement villages from two different places of the southern and western region of Hungary, among 173 women between the ages of 58 and 94 years old. We measured physical fitness using the Fullerton Test protocol and self-perceived health quality of life using the Short-Form Health Survey. RESULTS: Group means were different in six-minute walk distance, handgrip strength, and arm curls. The youngest group of females had higher scores of fitness in these categories as compared to the oldest grouping of women. Quality of Life were also difference across age groupings although not linear across the four age categories. Moderate level positive relationship was evident between perceived physical function and certain categories of physical fitness. CONCLUSIONS: Sociability and self-motivation has a leading role in quality of life in elder population. It is worth putting a lot more emphasis into continuous cultural, social and most importantly into physical activity programs for elderly.

Influence of pulsing electromagnetic field therapy on resting blood pressure in aging adults.

This double-blind study tested the effects of pulsating electromagnetic field (PEMF) therapy sessions on the changes in peripheral cardiovascular function in a group of aging adults after 12 weeks of treatment. Each therapy session involved 15 min of exposure to low-frequency PEMF with asymmetrical waveforms emitted by the Impulser™ Pro mattress. The treatment was provided 5 days per week for a total of 60 sessions. Resting blood pressure and arterial stiffness index were determined for peripheral cardiovascular function. Fifty-four older men and women (mean age 59.8 ± 3.5 yrs) completed the entire protocol involving either the PEMF or a sham treatment. The results include statistically significant reductions in systolic and pulse blood pressure, while no significant difference in diastolic pressure or the index of arterial stiffness was observed. These findings suggest that the PEMF treatment might be linked to improvements in peripheral resistance or circulation.

Adapting Active Science to PE Curricula: Examining Feasibility and Acceptability in Low-Income, Urban Public Schools.

Purpose: Children in low-income, urban areas are at a greater risk of poor physical activity (PA) and academic outcomes. The purpose of this study was to examine feasibility, acceptability, and engagement of a pilot implementation of the Active Science (AS) exer-learning program in 3rd grade physical education (PE) classes to inform potential upscaling after efficacy evaluation. Methods: AS was implemented within PE at five public schools serving low-income, urban neighborhoods, using a phased implementation approach. A mixed methods approach was utilized; feasibility and engagement were measured using quantitative dose and fidelity measures, students were surveyed regarding acceptability, and PE teachers were interviewed pre/post-intervention regarding perceptions of the program. Results: N = 638 students in k = 25 PE classes across five schools averaged 8.8 weeks of AS implementation with nearly universal inclusivity. Students averaged 1468 steps/session; an average of 15% of available PE class time was spent in MVPA. Semi-structured interviews revealed high staff perceptions of feasibility, as well as specific improvements that should be implemented before upscaling. Conclusions: Process and PA measures indicate high feasibility, with excellent engagement across all five schools. Together with high acceptability reported by students and staff, these results show that AS can feasibly integrate into PE classes low-income, urban schools to improve student engagement in both PA and science learning.

The Influence of COVID-19 on University Students' Well-Being, Physical Activity, Body Composition, and Strength Endurance.

BACKGROUND: Very few scientific studies have simultaneously evaluated changes in well-being (WB), physical activity (PA), and strength endurance (SE) based on results from before and during the COVID-19 pandemic. AIM: The aim of the study was to assess WB, PA, and SE levels, as well as body composition parameters in university students before and during the pandemic. METHODS: The study included 30 males and 30 females (mean age: 21.7 ± 2.51 and 21.6 ± 2.34 years, respectively). Well-being using the Self-Perception Questionnaire (POMS), PA from the Polish regular version of the International Physical Activity Questionnaire (IPAQ), body composition parameters using the InBody 270 analyzer, and SE based on the results of a 12 min test involving a Concept 2PM-5 rowing ergometer were assessed before and during the pandemic. RESULTS: An assessment of university students' WB revealed a significant increase in variables such as tension, depression, anger, confusion, and a significant decline in vigor (p < 0.05). In both sexes, PA and SE decreased significantly-from 2115.4 to 1822.8 METs-min/week and from 2184.5 to 2035 m, respectively, in males, and from 1793.5 to 1699.8 METs-min/week and from 2021.5 to 1943.8 m, respectively, in females. At the same time, body mass and BMI values increased significantly (p < 0.001) in both females and males. CONCLUSIONS: The COVID-19 pandemic caused a significant decrease in WB, PA and SE levels in young females and males, and led to a significant increase in their body mass and BMI.

Effect of personal response systems on student perception and academic performance in courses in a health sciences curriculum.

To increase student engagement, active participation, and performance, personal response systems (clickers) were incorporated into six lecture-based sections of four required courses within the Health Sciences Department major curriculum: freshman-level Anatomy and Physiology I and II, junior-level Exercise Physiology, and senior-level Human Pathophysiology. Clickers were used to gather anonymous student responses to questions posed within the class period after individual thought and peer discussion. Students (n = 293, 88% of students completing the courses) completed a perceptual survey on clicker effectiveness inserted into the Student Assessment of Learning Gains online instrument. Across courses and years, students uniformly rated several dimensions of clicker use as providing good to great gain in engaging them in active learning, increasing participation and involvement during class, maintaining attention, applying material immediately, providing feedback concerning their understanding, and offering an anonymous format for participation. Within these four sections, quiz grades were compared between clicker and nonclicker years. Significant increases in pre- and posttest scores were seen in Exercise Physiology in clicker years and on some, but not all material, in Anatomy and Physiology I and II based on content quizzes. Human Pathophysiology results were unexpected, with higher quiz scores in the nonclicker year. The results support the hypothesis of increased engagement with clicker use. The hypothesis of increased student performance was not consistently supported. Increased performance was seen in Exercise Physiology. In Anatomy and Physiology I and II, performance improved on some content quizzes. In Human Pathophysiology, performance did not improve with clickers.

Characterization of membranous (M) cells in normal feline conjunctiva-associated lymphoid tissue (CALT).

OBJECTIVE: To characterize conjunctival lymphoid nodules obtained from the nictitans of healthy cats to determine if the follicle-associated epithelium (FAE) of conjunctiva-associated lymphoid tissue (CALT) in this species contains membranous (M)-cells analogous to those described in other regions of mucosa-associated lymphoid tissue (MALT). METHODS: Lymphoid follicles from nictitan bulbar surfaces of 10 healthy cats (20 eyes total) were examined. Nictitans from five cats were harvested immediately post-mortem and a minimum of 12 lymphoid nodules from each third eyelid were isolated using a Zeiss operating microscope. At least three lymphoid follicles from each eye were examined using light microscopy (LM), transmission electron microscopy (TEM), and scanning electron microscopy (SEM) using standard fixation and embedding protocols. Nictitan-lymphoid follicles from another five healthy cats were processed for immunohistochemistry to characterize the distribution of T- and B-lymphocytes present beneath the FAE. RESULTS: The FAE overlying CALT from 10 healthy cats demonstrated morphology characteristic of M-cells including attenuated apical cell surface with blunted microvilli and microfolds, invaginated basolateral membrane forming a cytoplasmic pocket, and diminished distance between the apical and pocket membrane. Immunohistochemistry of lymphoid tissue subtending the FAE demonstrated B-cell dependent regions in the germinal centers surrounded by T-cell dependent interfollicular zones. CONCLUSIONS: Healthy feline CALT contains morphologic features analogous to those described in other regions of MALT. Documentation of feline conjunctival M-cells is of clinical relevance in the study of primary infectious, allergic, and autoimmune ocular diseases, as well as a potential means of vaccination or drug delivery.

Correlations between Repeated Use of Dry Sauna for 4 x 10 Minutes, Physiological Parameters, Anthropometric Features, and Body Composition in Young Sedentary and Overweight Men: Health Implications.

BACKGROUND: The effect of thermal stress on the physiological parameters of young overweight and sedentary men who sporadically use the sauna remains insufficiently investigated. AIM: The aim of the study was to determine the effect of sauna bathing on the physiological parameters of young overweight, physically inactive men and to test the correlations between physiological parameters versus anthropometric features and body composition parameters. MATERIALS AND METHODS: Forty-five overweight and sedentary men aged 20.76±2.4 y were exposed to four sauna sessions of 10 minutes each (temperature: 90-91°C; relative humidity: 14-16 %) with four 5-minute cool-down breaks. Body composition was determined before sauna, and body mass and blood pressure were measured before and after sauna. Physiological parameters were monitored during four 10-minute sauna sessions. RESULTS: A significant (p<0.0001) increase in all analyzed physiological parameters was observed during four successive 10-minute sauna sessions. Heart rate, energy expenditure, blood pressure, and body mass loss were most strongly correlated with anthropometric parameters (body mass, body mass index, and body surface area) and body composition parameters (percent body fat, body fat mass, and visceral fat level). The 60-minute treatment resulted in a significant reduction in body mass (0.65 kg). CONCLUSIONS: Repeated use of Finnish sauna induces significant changes in the physiological parameters of young sedentary overweight men, and these changes are intensified during successive treatments. Deleterious cardiovascular adaptations were most prevalent in men characterized by the highest degree of obesity and the largest body size.

COMPARISON OF HIP INTERNAL AND EXTERNAL ROTATION BETWEEN INTERCOLLEGIATE DISTANCE RUNNERS AND NON-RUNNING COLLEGE STUDENTS.

BACKGROUND: The increased incidence of lower extremity injury in runners compared to the general population is well documented. The amount of passive hip rotation and the position of hip flexion or extension at which it occurs may be factors related to injury incidence. PURPOSE: The purpose of the current study was to measure and compare hip rotation passive range of motion in male and female runners and non-runners at 0 and 90 degrees (°) of hip flexion. STUDY DESIGN: Descriptive Laboratory Study. METHODS: Eighteen Division II collegiate distance runners (9 female, 9 male, mean age = 19.1, +/- 1.1 years) who had run for an average of 7.1 (SD = 1.7) years participated in the study. Twenty non-runners (10 female, 10 male, mean age = 19.6, +/- 1.1 years) from the same institution were also recruited. Passive hip internal rotation (IR) and external rotation (ER) were measured with a universal goniometer in 90 ° of hip flexion in a seated position, and in 0 ° of hip flexion in prone position. RESULTS: There was a significant difference in IR measured in 0 ° of hip flexion, between runners and non-runners (F(1,37) = 8.04, p = .007). Additionally, the difference in IR between males (36.68 + /-9.19 degrees) and females (45.99 + /- 9.12) was significantly different (F(1,37) = 20.79, p = .001). There were no other statistically significant differences in measurements between groups. CONCLUSIONS: Collegiate runners had significantly greater passive hip IR when measured at 0 ° of hip flexion compared to the non-runners. Female runners had significantly greater passive hip IR compared to the male participants across both runners and non-runners. LEVEL OF EVIDENCE: 3.

Agreement Between Omron 306 and Biospace InBody 720 Bioelectrical Impedance Analyzers (BIA) in Children and Adolescents.

PURPOSE: The purpose of this study was to test the convergent validity of Omron 306 using Biospace InBody 720. METHOD: A total of 267 participants (145 boys; aged 10.4-17.9 years) completed testing during a single session. Each measure provided percent body fat (%BF), while the InBody 720 included fat-free mass (FFM). The validity was examined using the Pearson correlation. Limits of agreement (LOA) and multiple linear regression were also used to determine the impact of both age and FFM on the associations between the 2 measures. RESULTS: The 2 measures of %BF were correlated by .63 (p < .001) in boys and .89 (p < .001) in girls. The mean difference (i.e., InBody - Omron) for %BF in boys was - 4.7% with a lower LOA of - 20.5% and upper LOA of 11.2%. The same comparison for girls resulted in a difference of 3.0% with a lower LOA of - 10% and upper LOA of 4%. Examination of the residuals obtained from multiple linear regression indicated that FFM was the only statistically significant predictor of differences in boys (ßFFM = - 0.25 ± 0.08%, p = .001). There were no significant associations for girls. CONCLUSIONS: Findings indicate that estimates of %BF obtained from Omron in boys exceed estimates from InBody 720. Disagreement was evident in younger boys with lower levels of FFM. Girls' %BF was closer between the 2 bioelectrical impedance analyzer measures (less residual) with age and FFM not explaining the disagreement. Overall, the 2 measures were not equivalent.

Cross-Validation of a PACER Prediction Equation for Assessing Aerobic Capacity in Hungarian Youth.

PURPOSE: The purpose of this article was to evaluate the validity of the Progressive Aerobic Cardiovascular and Endurance Run (PACER) test in a sample of Hungarian youth. METHOD: Approximately 500 participants (aged 10-18 years old) were randomly selected across Hungary to complete both laboratory (maximal treadmill protocol) and field assessments (PACER) of aerobic capacity. Agreement between lab- and PACER-derived peak oxygen consumption (VO2) was examined using linear regression and 2-sided equivalence testing techniques, respectively. The impact of agreement on the classification accuracy of peak VO2 estimates into FITNESSGRAM® fitness zones was determined with kappa statistics. RESULTS: The final sample resulted in a total of 167 boys and 143 girls (N = 310). Analyses revealed that lab and PACER VO2 shared 13% to 18% of their variance (R(2)boys = .13, R(2)girls = .18) and that limits of agreement ranged from - 39.9 mL/kg/min to +37.6 mL/kg/min depending on the sex. The absolute error values were 14% for boys and 16% for girls; however, the average peak VO2 estimates from the PACER were within the 10% equivalence region for girls (37.2 mL/kg/min to 45.4 mL/kg/min), but not for boys (45.2 mL/kg/min to 55.2 mL/kg/min). When lab and PACER VO2 were categorized according to Fitnessgram zones, agreement was fair for both sexes (boys, Kappa = .25, and girls, Kappa = .31). CONCLUSIONS: Although the correlations between measured and predicted peak VO2 were lower than expected, the magnitude of error observed in the PACER is similar to past ranges of error observed in other studies (10%-15%), but the large individual error should be considered when interpreting individual results from this field-based measure of aerobic capacity. There was reasonable classification agreement between lab estimates and the PACER test for classification into the various fitness standards.

Overview of the Hungarian National Youth Fitness Study.

The 2012 Public Act on Education in Hungary made daily physical education (PE) a mandatory part of the school day starting in the 2012-2013 school year. This directive was linked to a significant reorganization of the Hungarian education system including a new National Core Curriculum that regulates the objectives and contents of PE. The Hungarian School Sport Federation (HSSF) recognized the opportunity and created the Strategic Actions for Health-Enhancing Physical Education or Testnevelés az Egészségfejlesztésben Stratégiai Intézkedések (TESI) project. Physical fitness assessments have been a traditional part of the Hungarian PE program; however, the TESI plan called for the use of a new health-related battery and assessment system to usher in a new era of fitness education in the country. The HSSF enlisted the Cooper Institute to assist in building an infrastructure for full deployment of a national student fitness assessment program based on the FITNESSGRAM® in Hungarian schools. The result is a new software-supported test battery, namely the Hungarian National Student Fitness Test (NETFIT), which uses health-related, criterion-referenced youth fitness standards. The NETFIT system now serves as a compulsory fitness assessment for all Hungarian schools. This article details the development process for the test battery and summarizes the aims and methods of the Hungarian National Youth Fitness Study.

Glutamine Supplementation did not Benefit Athletes During Short-Term Weight Reduction.

The purpose was to determine if glutamine supplementation would prevent a loss of lean mass in athletes during a 12-day weight reduction program. It was hypothesized that supplementation would spare lean body mass. Subjects (n=18) exercised and dieted to create a 4186kJ·day(-1) energy deficit and a 8372 kJ·day(-1) energy deficit on days 1-5, days 6-12, respectively. The glutamine (GLN) group (n=9) ingested 0.35 g·kg(-1) body mass of glutamine while a placebo was administered to the remaining subjects. Body mass (BM), lean body mass (LBM) and fat mass (FM), were measured at days 0, 6, and 12. GLN and placebo groups both lost significant amounts of BM, LBM and FM. There were no significant differences between groups. The findings indicate little benefit for retention of lean mass with supplementation of glutamine during a short-term weight reduction program.

Observed improvements in an intern's ability to initiate critical emergency skills in different cardiac arrest scenarios using high-fidelity simulation.

Objective : The objective of this study was to report observed changes in an intern's ability to initiate critical emergency skills in different cardiac arrest scenarios with high-fidelity simulation over a 10-month period. Methods : One intern's performance was retrospectively analyzed using video recordings of 4 simulations at different stages in the training program. The key outcome was the duration of time expired for 4 critical skills, including activating the emergency response system, initiating cardiopulmonary resuscitation (CPR), using an automated external defibrillator (AED), and passively administrating oxygen. Results : The intern became more efficient in each subsequent simulation for activating the emergency response system and initiating CPR. The time to use the AED stayed relatively constant. The administration of oxygen was inconsistent. Conclusion : An improvement in the speed of applying emergency critical skills was observed with this intern. These improvements in skill may improve patient outcomes and survival rates. We propose further educational research with high-fidelity simulation in the area of assessing emergency skills.

Body composition comparisons by age groups in Hungarian adults / Comparaciones de composición corporal en grupos etarios de adultos húngaros

The assessment of body composition provides a basis for evaluating changes in adults as they age. If the fat content is shown to be too high, intervention to reduce storage fat is warranted. The purpose of this paper is to report differences in body composition in men and women across three age groups (young, middle aged, older) to describe potential changes in both fat and muscularity. In addition, if fat storage is shown to be located in the visceral area (around the internal organs), then an addition risk to health would be evident. A total of 1564 Hungarian adults were tested for body mass index (BMI) and body composition using a multi-frequency electrical impedance device to determine percent body fat (PBF), percent muscularity (M%), and visceral fat area. Descriptive analyses were performed and Analyses of Variance were used to compare the mean values from each of the three groups. Post hoc comparisons were performed on significant findings. The results of this study indicate an increase in BMI, PBF, and visceral fat area and a decrease in M%. These differences were evident in young compared to middle-aged and older adults and between middle-aged and older adults. Levels of muscularity were significantly less as age increased. This resulted in no significant differences in BMI between middle-aged and older adults. This reduction in muscularity is alarming in that prior to expected age for sarcopenia, the middle-aged adults were showing declines in tissue that would benefit their quality of life. Longitudinal studies are needed to confirm these findings.

La evaluación de la composición corporal proporciona una base para evaluar cambios en adultos a medida que envejecen. Al determinar que el contenido de grasa es demasiado alto, se justifica la intervención para reducir esta grasa de almacenamiento. El propósito de este trabajo fue reportar las diferencias en la composición corporal en hombres y mujeres de tres grupos etarios (jóvenes, de mediana edad y adultos mayores) para describir los cambios potenciales en grasa y musculatura. Además, el almacenamiento de grasa que se encuentra en la zona visceral (alrededor de los órganos internos) constituye un riesgo importante para la salud. Un total de 1564 adultos húngaros fueron incluidos en el estudio para definir el índice de masa corporal (IMC) y la composición corporal utilizando un dispositivo de impedancia eléctrica de múltiples frecuencias para determinar el porcentaje de grasa corporal (PBF), porcentaje de la musculatura (M%) y el área de grasa visceral. Fue realizadoun análisis descriptivo y de varianza para comparar los valores medios de cada uno de los tres grupos. Comparaciones post hoc se realizaron en los hallazgos significativos. Los resultados indicaron un aumento en el IMC, PBF y área de grasa visceral, y una disminución de M%. Estas diferencias fueron evidentes en los jóvenes, a diferencia de los adultos de mediana edad y de edad avanzada, como también entre los adultos de mediana edad y adultos mayores. Los niveles de musculatura fueron significativamente menores a medida que la edad avanzaba. Esto dio lugar a diferencias significativas en el IMC entre los adultos de mediana edad y adultos mayores. Esta reducción de la musculatura es alarmante debido a que antes de la edad prevista para la sarcopenia, los adultos de mediana edad muestran disminución en el tejido que beneficiaría la calidad de vida. Se requieren estudios longitudinales para confirmar estos hallazgos.

Step-count guidelines referenced on 60-minutes of moderate/vigorous physical activity

The purpose of this study was to establish step-count guidelines for sixth-grade students and assess the ability of step-counts to discriminate between students achieving and not achieving 60-minutes of moderate to vigorous physical activity daily. 201 sixth-grade students completed the study. They wore a pedometer and an accelerometer at the waist level for one full day. ROC curves were used to establish step-count guidelines and determine the diagnostic accuracy of step-counts. Sixth grade students need 12,118 steps/day to reach adequate daily levels of physical activity. The AUC indicated good diagnostic accuracy of step-counts. Suggested step-count guidelines can be a useful tool for identifying children who need to increase their daily levels of physical activity. The step-count cutoff proposed in this study is adequate for discriminating between sixth grade students reaching and not reaching recommended levels of physical activity.

O objetivo deste estudo foi estabelecer diretrizes de passos por dia para estudantes da sexta série escolar e avaliar a possibilidade da contagem de passos para discriminar estudantes que atendem ou não a recomendação de 60 minutos diários de atividade física de moderada a vigorosa intensidade. 201 estudantes completaram o estudo. Ele usaram pedômetros e acelerômetros na cintura por 1 dia inteiro. Curvas ROC foram utilizadas para estabelecer diretrizes e precisão diagnóstica da contagem de passos. A AUC indicou boa capacidade diagnóstica da contagem de passos. Para atender níveis adequados de atividade física, 12.118 passos/dia são recomendados para estudantes da sexta série. Recomendações de contagem de passos sugeridas podem ser uma ferramenta útil para identificar crianças que necessitam aumentar seu nível diário de atividade física. O ponto de corte de passos/dia proposto neste estudo é adequado para discriminar estudantes de sexta série que atendem ou não níveis recomendados de atividade física.

El propósito de este estudio fue a establecerse directrices de pasos/día para los estudiantes de sexto grado y evaluar la capacidad de pasos/día para discriminar entre los estudiantes que alcanzan y no alcanzan 60 minutos de actividad física moderada a vigorosa. 201 estudiantes de sexto grado finalizaron el estudio. Ellos usaran un podómetro y un acelerómetro en el nivel de la cintura por un día completo. Se utilizaron curvas ROC para establecerse directrices y la exactitud diagnóstica de pasos/día. Para alcanzar un nivel adecuado de actividad física, se recomienda 12.118 pasos/día. El AUC mostró buena capacidad diagnóstica de pasos/día. Directrices de pasos/día sugeridos pueden ser una herramienta útil para la identificación de los niños que necesitan incrementar sus niveles de actividad física. El punto de corte de pasos/día propuesto es adecuado para discriminar entre los estudiantes que alcanzan y no alcanzan a los niveles recomendados de actividad física diario.

Reactions of indole derivatives with oxiranes and aziridines on silica. Synthesis of beta-carbolin-1-one mimic of pancratistatin.

[reaction: see text] Indole and several indoles functionalized at C-2 were condensed with oxiranes, vinyloxiranes, aziridines, and vinylaziridines in the solid state on the surface of silica. The yields of these reactions were compared to those obtained from Lewis acid-catalyzed ring-opening reactions performed in solution and found to be superior in each case. The solid-phase aziridine opening constituted a key step in the synthesis of the beta-carbolin-1-one mimic of pancratistatin. Methyl 2-indolecarboxylate was found to react on the silica gel surface with N-tosylvinylaziridine in 68% yield. A nine-step synthesis of the pancratistatin mimic has been attained. The additional key transformation in this synthesis involved silica gel-catalyzed opening of an epoxide and hydrolysis of an acetonide. Detailed experimental procedures and full characterization are reported for all new compounds.

Factors associated with physical activity in preschool children.

OBJECTIVE: Our purpose was to identify factors associated with the physical activity in young children. STUDY DESIGN: Participants were 214 children (aged 3-5 years) enrolled in 10 childcare centers who were monitored for physical activity with an accelerometer during 2 continuous days (48 hours). Mean daily activity counts, activity counts between 9 AM and 5 PM, and percentage of time spent in vigorous activity were determined. The factors investigated were age, childcare center, season, sex, body mass index (BMI), history of preterm birth, participation in organized activities, parental BMI, and parental educational level. Regression analyses were used to identify factors associated with each of the activity measures. RESULTS: A statistical model including sex, history of preterm birth, childcare center, and father's BMI accounted for 22%, 37%, and 23% of the variance in total daily counts, counts between 9 AM and 5 PM, and percentage of time spent in daily vigorous activity, respectively. Childcare center was the highest individual predictor of activity. Boys were more active than girls in all activity measures except counts between 9 AM and 5 PM. Children born preterm were less active than children born at term, and high activity levels in the child were associated with a low BMI in fathers. CONCLUSION: The findings indicate that sex, history of preterm birth, childcare center, and father's BMI influence the daily physical activity of young children.

Effects of carbohydrate refeeding on physiological responses and psychological and physical performance following acute weight reduction in collegiate wrestlers.

The purpose of this study was to determine the effects of carbohydrate refeeding on intermittent sprint exercise, blood lactate response, and mood following a typical weight-reduction program practiced by college wrestlers. Fifteen collegiate wrestlers from the University of Northern Iowa completed 3 trials of intermittent arm cranking and a mood inventory prior to weigh-ins (baseline), after weigh-ins, and 1 hour postconsumption of either 1.5 g carbohydrate (CHO)/kg body mass carbohydrate beverage (25% solution) or placebo taken within 1 hour after weigh-ins. Blood lactate responses were determined with each trial. Repeated measures analysis of variance indicated no significant interaction between group and trial for total work (p = 0.08), blood lactate (p = 0.29), positive mood (p = 0.49), or negative mood (p = 0.78). Simple effects analysis indicated a significant difference in lactate response between trials (p = 0.002); however, no difference for work (p = 0.75), positive mood (p = 0.13), or negative mood (p = 0.08). The results of this study suggest that intermittent sprint exercise, blood lactate response, and mood were not positively affected by ingestion of CHOs following an acute weight-reduction period.