Differential Relationship between Physical Activity and Intake of Added Sugar and Nutrient-Dense Foods: A Cross-Sectional Analysis

A curvilinear relationship exists between physical activity (PA) and dietary energy intake (EI), which is reduced in moderately active when compared to inactive and highly active individuals, but the impact of PA on eating patterns remains poorly understood. Our goal was to establish the relationship between PA and intake of foods with varying energy and nutrient density. Data from the 2009–2010 United States National Health and Nutrition Examination Survey were used to include a Dietary Screener Questionnaire for estimated intakes of added sugar, fruits and vegetables, whole grains, fiber, and dairy. Participants (n = 4766; 49.7% women) were divided into sex-specific quintiles based on their habitual PA. After adjustment for age, body mass index, household income, and education, intakes were compared between PA quartiles, using the lowest activity quintile (Q1) as reference. Women in the second to fourth quintile (Q2-Q4) consumed less added sugar from sugary foods (+2 tsp/day) and from sweetened beverages (+2 tsp/day; all p \u3c 0.05 vs. Q1). In men, added sugar intake was elevated in the highest activity quintile (Q5: +3 ± 1 tsp/day, p = 0.007 vs. Q1). Fruit and vegetable intake increased (women: Q1-Q4 +0.3 ± 0.1 cup eq/day; p \u3c 0.001; men: Q1-Q3 +0.3 ± 0.1 cup eq/day, p = 0.002) and stagnated in higher quintiles. Dairy intake increased with PA only in men (Q5: +0.3 ± 0.1 cup eq/day, p \u3c 0.001 vs. Q1). Results demonstrate a differential relationship between habitual PA and dietary intakes, whereby moderate but not necessarily highest PA levels are associated with reduced added sugar and increased nutrient-dense food consumption. Future research should examine specific mechanisms of food choices at various PA levels to ensure dietary behaviors (i.e., increased sugary food intake) do not negate positive effects of PA

RETROSPECTIVE EVALUATION OF FACTORS THAT INFLUENCE THE IMPLEMENTATION OF C.A.T.C.H. IN SOUTHERN ILLINOIS SCHOOLS

This study is a retrospective evaluation of the Coordinated Approach To Child Health (CATCH) coordinated school health program. An abundant amount of research has been conducted concerning CATCH, but no data exist that represents the characteristics and attitudes of individuals implementing the program. This study looked to examine organizational readiness, commitment to change, leadership, implementation barriers, innovation perceptions and their influence on the diffusion of CATCH. The primary purpose of this study is to describe and explain why schools in the same area that receive the same CATCH training result in different implementation practices. This study included a retrospective evaluation that evaluated school employees\u27 motivation of CATCH implementation over the 2011-2012 school year. A survey of 284 school employees and health department partners consisting of 33 school administers, 197 classroom teachers, 27 physical education teachers, 21 cafeteria supervisors, and 6 health department partners at elementary school located in the southernmost counties of southern Illinois was conducted. Particular attention was focused upon the differences between classroom teachers, physical education teachers, cafeteria supervisors, and health department partners. Degree of CATCH implementation was the best among cafeteria supervisors and physical education teachers while classroom teachers implemented roughly 50% of the CATCH classroom curriculum. Organizational readiness was a significant predictor of classroom teacher degree of implementation while school leadership served as a significant predictor of degree of implementation by physical education teachers. The study utilizes CATCH; however, this study could be helpful concerning other school health programs to enhance program implementation practices and delivery. The significance of these data provide health educators with evidence of why schools have different implementation practices, what constructs influence degree of implementation, and how addressed constructs that influence implementation can be rectified through school preparation and training protocols to enhance degree of implementation. Additional variables are also discussed that could account for further variation in school employee degree of implementation

Keeping The Physical Educator “Connected” An Examination Of Comfort Level, Usage And Professional Development Available For Technology Integration In The Curricular Area Of Physical Education

Schools continue to integrate the use of technology, and gymnasiums are not an exception.  The purpose of the study was to determine the comfort level of Physical Education teachers integrating technology in the gymnasium, determine types of professional development provided for technology use, and potential barriers associated with technology usage. A survey of 179 practicing Physical Education teachers located in the Midwest completed an online questionnaire. Results indicated Physical Education teachers were comfortable integrating technology but reported inadequate professional develop on technology device implementation.  These findings suggest Physical Educators are willing to integrate technology but the professional development and resources available to accomplish this is lacking. Future research should examine PETE program offerings, and additional PD opportunities offered by SHAPE America within the area of technology and Physical Education

The Effects of Insoles on Loading Rate in Level Running

Introduction: Running is one of the most popular recreational sports in America with over 250 million regular runners. Recreational and competitive runners often experience over-use injuries including plantar fasciitis, Achilles tendinitis and stress fractures. Previous research has shown that the transmission of ground reaction force through the lower extremity leads to these over-use injuries; however, it is not solely the magnitude of vertical ground reaction forces, but also the rate at which these forces are applied that may lead to lower extremity injury. Many recreational runners will use over-the-counter insoles as a method of treating an injury or as a way of prolonging or renewing and old pair of running shoes. Therefore, the purpose of this study was to examine the efficacy of two insoles on peak vertical ground reaction forces and loading rates. It was hypothesized that no differences in peak vertical ground reaction forces or loading rates would exist with the addition of two insoles during running. Methods: Twelve subjects (7 females; 5 males) performed seven trials in each of the following conditions: no insoles, over-the-counter insoles and custom made memory-foam insoles. Over-the-counter insoles were made by Dr. Scholl’s while the memory-foam insoles were made of tempur-pedic material. Ground reaction forces were recorded using a force plate (1440Hz; AMTI) while subjects ran across a 15 meter lab. Loading rate was calculated as the quotient of the peak vertical ground reaction force during load response and the time from heel strike to peak vertical ground reaction force in load response. A 2 x 3 (gender x insole) repeated measures ANOVA was used to compare the effects of insoles on loading rate. Alpha level was set at p \u3c0.05. Results: The current study found no statistical differences in normalized or non-normalized loading rate between the insole and no insole conditions. Furthermore, there was no effect of gender on loading rate. Discussion and Conclusions: The findings of the current study suggest that insoles do not attenuate shock or decrease loading rate. The lack of shock attenuation associated with the insoles suggests they are not effective in prolonging the life of a pair of running shoes by improving shock absorption. Furthermore, these data suggest that insoles will not aid in the prevention or treatment of injury in running

Retrospective Evaluation of High School Primary Physical Activities and Adulthood Physical Activity Need Satisfaction

Presumably, individuals are taught skills throughout their primary education that are required to live a healthy lifestyle throughout the lifespan. The primary purpose of this study was to assess adult psycho- logical need satisfaction in relation to high school participation. Participation included university employees and students of two mid-sized universities and members of a state health organization. Participants (n = 512) completed the Psychological Need Satisfaction in Exercise (PNSE) and the International Physical Activity Questionnaire (IPAQ). The current study found modest associations between measured motivation constructs on physical activity levels. Standardized coefficients report competence and autonomy had a significant effect on physical activity in predicting adult physical activity levels. Results of this study provide insight into the determinants underlying the development of physical activity tendencies in adults and suggest high school physical education and sport participation have an equal influence on adult physical activity levels

Lower Extremity Kinetics in High and Low-Arched Athletes during Landing

Abnormal foot function has been associated with an increased rate of injury in the athletic population. It has been shown that high-arched (HA) and low-arched (LA) athletes experience different injury patterns. These may be the manifestation of different loading and joint torque patterns in HA and LA athletes. It has been shown that HA and LA athletes have unique kinematic and kinetic patterns during running. However, little research has examined ground reaction forces (GRF) and lower extremity joint kinetics in HA and LA athletes during landing tasks. PURPOSE: To examine GRF and knee and ankle joint torques in HA and LA athletes during a landing task. METHODS: Ten HA (age: 20.8±2.5 years; height: 1.62±0.07 m; mass: 58.3±5.4 kg; arch index: 0.386±0.010) and 10 LA (age: 21.1±2.3; height: 1.63±0.07m; mass: 58.9±10.9kg; arch index: 0.259±0.043) female recreational athletes participated in this study. Each subject performed five barefooted drop landing trials from a height of 30 cm. GRFs and three-dimensional (3D) kinematics were recorded simultaneously using a force plate (1200 Hz, AMTI) and 7-camera motion analysis system (240 Hz, Vicon). GRFs and joint torques were calculated using Visual 3D (C-Motion, Inc.) and critical events were determined using custom software. A one-way ANOVA was used to compare group differences with an alpha level of p\u3c0.05. RESULTS: The GRF profiles were similar between the HA and LA athletes. However, HA athletes exhibited a mean eversion moment compared to an inversion moment in LA athletes (HA: -0.05±0.08 Nm/kg; LA: 0.04±0.07 Nm/kg). Additionally, the HA athletes generated greater peak knee external rotation torques (HA: 0.18±0.06 Nm/kg; LA: 0.26±0.08 Nm/kg) compared to LA athletes during the landing task. Knee extension and abduction torques were similar between the two groups in contrast to previous findings. CONCLUSIONS: The greater mean eversion torques exhibited by the HA athletes may be a response to being more inverted throughout the landing task. Increased eccentric contraction of the ankle everters would control eversion during landing. Similarly, the increased knee external rotation torques would act to limit knee internal rotation during landing. These altered kinetic patterns may increase the risk of injury within these groups of athletes

A Comparison of Three Computer-based Methods Used to Determine EMG Signal Amplitude

Electromyography is a commonly used method to determine relative effort and neuromuscular drive to skeletal muscle. A limitation of the interpretation of EMG within the literature is the many methods used to determine the intensity of muscle activation. In the current study, ten healthy young adults performed a level walking task while EMG was recorded from the tibialis anterior, medial gastrocnemius and fibularis longus. The EMG data were rectified and smoothed using the root mean squared (RMS). Peak RMS (pRMS), mean RMS (mRMS) and integrated EMG (iEMG) were normalized to the peak value within the subject and were used to determine EMG amplitude. A 3x3 repeated measures analysis of variance was used to determine significant differences between the methods of determining EMG amplitude. The findings of the current study show that pRMS produced significantly lower EMG amplitudes than mRMS or iEMG values. Furthermore, mRMS and iEMG produced nearly identical normalized EMG amplitudes. Based on the findings of this study and the components of each measurement of EMG amplitude, it is suggested to use mRMS to determine EMG amplitude

Neuromuscular Adaptations in Elderly Adults Are Task-Specific during Stepping and Obstacle Clearance Tasks.

Elderly adults have a diminished movement capacity due to physiological and neurological declines associated with advancing age. Previous research suggests that elderly adults use altered neuromuscular patterns to conduct activities of daily living (ADLs). Limited research has addressed these altered activation strategies in obstacle clearance, stair ascent and stair descent. The purpose of this study was to compare neuromuscular activation patterns in young and elderly adults during these tasks. Eleven young and 10 healthy elderly adults performed five downward stepping, upward stepping and obstacle clearance trials. Surface EMG was measured from the quadriceps, hamstrings, gastrocnemius and tibialis anterior muscles. A 2x3 (group x condition) repeated measures analysis of variance was used to determine significant differences in muscle activation intensity. An apriori alpha level was set at p\u3c0.05. The results showed that elderly adults exhibited greater activation intensity than the young adults in all movement conditions. The significant differences in muscle activation intensity in the elderly adults were limited to the musculature driving the tested movement. The findings of the current study support previous research that elderly adults perform ADLs at a greater relative intensity than young adults. Furthermore, the current study shows that the disproportionate increase in muscle activation intensity is limited to the muscles that functionally drive the required task

Motivation of Shoulder Surgery Patients for Rehabilitation

International Journal of Exercise Science 10(2): 234-245, 2017 Motivation can be a valuable construct during physical rehabilitation. Rehabilitation can be uncomfortable and painful, testing patients’ rehabilitation motivation and continued participation. Maintaining motivation throughout rehabilitation is important for patients to return to optimal joint motion and daily functioning. The purpose of this research project was to examine rehabilitation motivation after shoulder surgery (rotator cuff repairs, slap repairs, biceps tenodesis, acromioplasty, distal clavicle excision or combination). Persons who underwent shoulder surgery (December 2014 – April 2015) voluntarily participated in the study. The Self Regulation Questionnaire was used to assess patients’ self-regulation and motivation. Surveys were administered to participants during rehabilitation at appointments with the physician. This study revealed significant changes to participants’ self-regulation throughout the 16-week post shoulder surgical rehabilitation process. Significant increases were discovered when looking at patients’ attention to goals and employing strategies to meet those goals. Other main areas of increase included problem solving, planning rehabilitation outside of therapy and coping with challenging times in rehabilitation. Data allows researchers and health care professionals to evaluate the dynamics of motivation fluctuation during rehabilitation. In addition, data will allow researchers to identify areas of motivational concern to implement motivation techniques in order to aid patients through rehabilitation

Exploring Secondary Science Teachers\u27 Use of Classroom Physical Activity

This study explored the use of classroom physical activity (PA) in secondary science rooms. To accomplish this, semistructured interviews were conducted with secondary science teachers (n = 11). Interviews were based on the constructs of the social-ecological model. Most teachers reported using classroom PA in some form—in-class breaks, outdoor activities, and curriculum support. Teachers used classroom PA to improve academic and behavioral outcomes of students. They had varied perceptions regarding collegial support of classroom PA, but mostly felt supported by administrators. Teachers reported being unaware of their district’s and the state department of education’s beliefs about classroom PA. Overall, factors that negatively influenced classroom PA use tended to be within the interpersonal, organization, and policy levels of the social-ecological model, while factors that positively influenced classroom PA use tended to be within the individual level