Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 45
Filtrar
Mais filtros

Tipo de documento
Intervalo de ano de publicação
1.
BMC Pediatr ; 23(1): 461, 2023 09 13.
Artigo em Inglês | MEDLINE | ID: mdl-37704949

RESUMO

BACKGROUND: Fundamental motor skills (FMS) are considered essential for sport participation and might be deficit in obese children. While evidence indicates that physical activity (PA) levels impact motor skill development, the relationship between body composition, PA, and motor competence, particularly in early childhood, is not thoroughly understood. We aimed to determine if PA, fat mass (FM), and fat-free mass (FFM) are predictors of FMS. METHODS: Preschoolers (n = 47) from two preschools were assessed for FMS, PA, and body composition. Peabody Developmental Motor Scales (PDMS-2) subscale scores were used to assess FMS. PA was assessed with a wrist-worn accelerometer for five days during school. FM and FFM were measured with foot-to-foot bioelectrical impedance. RESULTS: Linear regressions indicate significant models for stationary skills (SS) (F = 4.57, p = .004) and object manipulation skills (OMS) (F = 4.66, p = .003). FFM was the only significant predictor of SS (t = 3.98, p < .001) and OMS (t = 3.50, p = .001). FM and all intensities of PA were nonsignificant predictors in all models. CONCLUSIONS: These results indicate that interventions that target improving or maintaining FFM may improve FMS.


Assuntos
Destreza Motora , Obesidade Infantil , Criança , Humanos , Pré-Escolar , Composição Corporal , Escolaridade , Exercício Físico
2.
J Strength Cond Res ; 36(11): 3217-3223, 2022 Nov 01.
Artigo em Inglês | MEDLINE | ID: mdl-36165989

RESUMO

ABSTRACT: Wadsworth, DD, Rodriguez-Hernandez, M, Huffman, LS, McDonald, JR, Spring, KE, and Pascoe, DD. Adaptations to a concurrent exercise training program in inactive aging women. J Strength Cond Res 36(11): 3217-3223, 2022-This study assessed the effect of a 10-week, sprint interval concurrent exercise training program on body composition and muscular strength in aging women. Sixty-five inactive women (age, 40-64 years) were randomized into 2 sprint interval exercise programs, 0% incline and 6% incline. Sprint interval training was performed to achieve 95% of each subject's age-predicted maximal heart rate for a series of 40 seconds of work followed by 20 seconds of passive recovery. An undulating resistance training protocol, composed of 30 sessions, was performed by each group throughout the study. Dual-energy X-ray absorption scans were assessed body composition, and 1 repetition maximum was performed to assess muscular strength. Subjects in both groups significantly reduced fat mass by approximately 0.35 kg ( p = 0.002), and visceral adipose tissue by 0.05 kg ( p = 0.032). There were significant increases in lean body mass by approximately 0.50 kg ( p = 0.005), lower-body muscular strength by approximately 46.83 kg ( p < 0.001), and upper-body muscular strength by approximately 11.68 kg ( p < 0.001). No significant between-groups interactions were observed. A sprint interval training concurrent exercise training program is an effective strategy to improve body composition and muscular strength in inactive, aging women. Muscular strength improvements resulting from this intervention are particularly important because muscular strength losses are strong predictors of morbidity and mortality.


Assuntos
Treinamento Intervalado de Alta Intensidade , Treinamento Resistido , Humanos , Feminino , Adulto , Pessoa de Meia-Idade , Treinamento Resistido/métodos , Força Muscular/fisiologia , Exercício Físico/fisiologia , Composição Corporal/fisiologia , Envelhecimento
3.
Int J Behav Med ; 28(4): 403-416, 2021 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-33083891

RESUMO

BACKGROUND: Motivational interviewing (MI) is a communication skill set used by clinicians to help facilitate adherence to numerous health behaviors. Currently, MI's evidence supports its use among adults in various realms; however, clarity is needed regarding weight management among females. The purpose of this systematic review and meta-analysis is to synthesize the literature examining the use of MI and its impact on anthropometric measures among adult females. METHOD: The authors conducted a modified Cochrane method of systematic search and review in several relevant databases to explore and report evidence and gaps in the literature for MI in weight management among females in addition to meta-analyses for weight and BMI. Criteria for retention included randomized controlled trials with open inclusion of studies with varied settings, methods, interventionists, target behaviors, and outcomes. RESULTS: Of the 3289 references initially identified, 10 intervention arms met the criteria across review tiers. Seven of 10 intervention groups reported significant anthropometric changes compared with a control group, as well as significant changes in non-anthropometric outcomes related to weight management. Using a random-effects model, the effect size of MI on reduction in body weight (kg) was 0.19 (95% CI - 0.13, 0.26; p < 0.01), and the effect size of MI on reduction in BMI was 0.35 (95% CI 0.12, 0.58; p < 0.01). CONCLUSIONS: Results suggest that MI interventions are useful for weight management among females. Future studies would enhance the current base of literature by utilizing advanced anthropometric outcomes, including sex-specific results, and including more diverse and larger sample sizes.

4.
Horm Metab Res ; 52(7): 485-491, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-32422661

RESUMO

This systematic review aims to evaluate all epidemiological evidence in the literature linking the effect of vitamin D supplementation to metabolic and hormonal functions in women with polycystic ovary syndrome. The literature search was performed with two databases, namely Medline/PubMed and Web of Science, until 20 May 2019 for both observational and experimental studies concerning relationships between vitamin D and polycystic ovary syndrome. A total of ten studies with randomized, double-blinded, and placebo-controlled trial design from 2008 to 2019 were selected for this review. The inclusion criteria were women 18-45 years of age with polycystic ovary syndrome and comparing the metabolic or endocrine parameters between placebo and vitamin D supplementation groups. A total of ten studies were selected for this review. We found that vitamin D supplementation had a significant effect on insulin metabolism, total serum testosterone, hirsutism, C-reactive protein, and total antioxidant capacity in women with polycystic ovary syndrome. Evidence from available randomized controlled trials suggests that patients with polycystic ovary syndrome should take vitamin D supplementation for the beneficial effect of metabolic profiles. However, future research is needed regarding the beneficial effects in women who are non-obese with polycystic ovary syndrome, as well as more studies with larger sample sizes.


Assuntos
Metaboloma/efeitos dos fármacos , Síndrome do Ovário Policístico/metabolismo , Vitamina D/farmacologia , Adolescente , Adulto , Suplementos Nutricionais , Método Duplo-Cego , Feminino , Humanos , Pessoa de Meia-Idade , Síndrome do Ovário Policístico/complicações , Síndrome do Ovário Policístico/tratamento farmacológico , Síndrome do Ovário Policístico/epidemiologia , Ensaios Clínicos Controlados Aleatórios como Assunto/estatística & dados numéricos , Vitamina D/uso terapêutico , Deficiência de Vitamina D/complicações , Deficiência de Vitamina D/tratamento farmacológico , Deficiência de Vitamina D/epidemiologia , Deficiência de Vitamina D/metabolismo , Adulto Jovem
5.
BMC Public Health ; 20(1): 1242, 2020 Aug 15.
Artigo em Inglês | MEDLINE | ID: mdl-32799849

RESUMO

BACKGROUND: Resistance-training (RT) provides significant health benefits. However, roughly 3/4 of adults in the United States do not meet current Physical Activity Guidelines in this regard. There has been a call for research examining the effectiveness of interventions to increase participation in physical activity and to better understand the dose response relationship upon health outcomes. Studies are needed that assess the effectiveness of RT programs that are time-efficient and simple to perform. This fully-powered, randomized controlled study will assess a habit-based RT program consisting of one set of push-ups, angled-rows, and bodyweight-squats performed every weekday for 12-24 weeks in untrained individuals. METHODS: Forty-60 untrained osteopathic medical students and college/university employees who work in an office setting will be recruited and randomized (1:1) to an intervention or waitlist control group. After 12-week follow-up assessment, the intervention group will continue the program and the control group will initiate the program for 12 weeks. In addition to the equipment and training needed to safely perform the exercises, all participants will receive training in the Tiny Habits® Method (THM) and digital coaching for the duration of the study. Participants will complete weekly assessments regarding the program during their initial 12-week intervention phase. The primary outcome is the change from baseline to 12 weeks in the intervention group versus the control group, in the combined number of repetitions performed in one set of each of the three exercises (composite repetitions) under a standardized protocol. Secondary outcomes include adherence to and satisfaction with the program, and change from baseline to 12- and 24-week follow-up in blood pressure, fasting lipid panel, hemoglobin A1c, body mass index, anthropometry, body composition, mid-thigh muscle thickness, and habit strength. DISCUSSION: This study will evaluate a simple, habit-based RT intervention in untrained individuals. The approach is unique in that it utilizes brief but frequent bodyweight exercises and, via the THM, focuses on consistency and habit formation first, with effort being increased as participants are motivated and able. If effective, the program can be easily scaled for wider adoption. TRIAL REGISTRATION: This study was prospectively registered at ClinicalTrials.gov, identifier NCT04207567 , on December 23rd, 2019.


Assuntos
Ginástica/psicologia , Hábitos , Treinamento Resistido/métodos , Adulto , Feminino , Humanos , Masculino , Avaliação de Programas e Projetos de Saúde , Projetos de Pesquisa
6.
Fam Community Health ; 43(2): 131-140, 2020.
Artigo em Inglês | MEDLINE | ID: mdl-32079969

RESUMO

Rural-dwelling, overweight/obese, limited-resource individuals and women have the lowest leisure-time physical activity rates among Americans. This community-based, single-group pre- posttest study sought to increase physical activity, step counts, and promote weight loss in 104 low-income women (84% rural). Analyses included nonparametric and repeated-measures analyses of variance to determine physical activity behaviors, step counts, and weight loss. Results show, from pre- to postintervention, participants improved self-reported step counts, physical activity goal setting and behaviors, and body weight. This study adds support that text message programs can reach a high-risk, limited-resource, predominantly rural population to promote physical activity and weight loss.


Assuntos
Exercício Físico/fisiologia , Obesidade/prevenção & controle , Obesidade/terapia , Telemedicina/métodos , Redução de Peso/fisiologia , Adulto , Alabama , Feminino , Humanos , Pessoa de Meia-Idade , Pobreza , População Rural , Envio de Mensagens de Texto , Estados Unidos , Adulto Jovem
7.
J Strength Cond Res ; 33(11): 3049-3055, 2019 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-29781937

RESUMO

Peart, A, Wadsworth, D, Washington, J, and Oliver, G. Body composition assessment in female National Collegiate Athletic Association Division I softball athletes as a function of playing position across a multiyear time frame. J Strength Cond Res 33(11): 3049-3055, 2019-The purpose of this study was to record changes in total body mass, lean body mass (LBM), fat mass (FM), and body fat percentage (BF%) in female National Collegiate Athletic Association (NCAA) Division I level softball athletes over a multiyear time frame using dual-energy x-ray absorptiometry (iDXA). Forty-two (20.36 ± 1.59 years) NCAA Division I collegiate softball athletes volunteered over 2 years. Subjects tested 3 times throughout the season (pre-season, mid-season, and post-season) in 2015-2017. Total and regional LBM, FM, and BF% were measured by the iDXA. A mixed-design analysis of variance was performed to examine LBM, FM, BF%, and player position interaction over time. Where appropriate, post hoc tests were used to determine statistically different variables (p ≤ 0.05). Lean body mass decreased significantly (p = 0.048) from mid-season (50.02 ± 0.28) to post season (49.67 ± 0.37). Fat mass and BF% decreased significantly for all playing positions over the season except for pitchers, who showed significantly (p < 0.000) higher levels of FM (26.56 ± 1.74) and BF% (31.77 ± 1.14) than all other positions. The current study revealed that all athletes decreased in LBM during the competitive season. Pitchers from this study consistently maintain a higher FM and BF% than the catchers, infielders, and outfielders. These data reveal that more emphasis of training and conditioning for optimal performance should be focused on the pitching position to maintain a healthy body composition.


Assuntos
Beisebol , Composição Corporal , Absorciometria de Fóton , Tecido Adiposo , Atletas , Feminino , Humanos , Estudos Longitudinais , Músculo Esquelético , Fatores de Tempo , Universidades , Adulto Jovem
8.
J Strength Cond Res ; 33(6): 1640-1647, 2019 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-28777244

RESUMO

Salom Huffman, L, Wadsworth, DD, McDonald, JR, Foote, SJ, Hyatt, H, and Pascoe, DD. Effects of a sprint interval and resistance concurrent exercise training program on aerobic capacity of inactive adult women. J Strength Cond Res 33(6): 1641-1648, 2019-The purpose of this investigation was to examine the effects of high-intensity concurrent exercise training (CET) consisting of sprint intervals (sprint interval training [SIT]) and resistance exercise (RET) protocols on aerobic capacity in recreationally active, adult women. A total of 53 participants were pair-matched according to preliminary maximal aerobic capacity (VO2max) Bruce protocol assessment into level-grade (SIT0) or 6% incline (SIT6) groups. This 12-week intervention consisted of 3 CET sessions per week. Sprint interval protocol consisted of 2 (weeks 1-6) then 3 (weeks 7-12) sets of three 40-second sprints at specific intensities to evoke responses equivalent to 95% of age-predicted maximal heart rate interspersed with 20 seconds of rest; with 1 minute of passive recovery between sets. An undulating periodization model consisting of lifts such as the back squat and bench press constituted the RET component. Protocol order alternated each session. Posttraining revealed significant improvements in both SIT0 and SIT6 (p ≤ 0.05) for VO2max (2.11 ± 0.390 to 2.29 ± 0.382 L·min; 2.03 ± 0.382 to 2.09 ± 0.561 L·min), Tmax (490.5 ± 102.3 to 542.7 ± 81.5 seconds; 503.2 ± 75.4 to 541.8 ± 77.0 seconds), and Vmax (5.1 ± 0.92 miles per hour [MPH] to 5.9 ± 0.90 MPH; 4.3 ± 0.68 MPH to 4.9 ± 0.64 MPH), respectively. No significant between-group interactions were detected for any of the variables. Our SIT-based CET intervention represents an effective strategy to induce significant cardiovascular adaptations in older women as evident by aerobic capacity improvements, beneficial to overall health and critical for functionality into old age; an important concern for aging women.


Assuntos
Adaptação Fisiológica , Tolerância ao Exercício/fisiologia , Treinamento Intervalado de Alta Intensidade , Consumo de Oxigênio , Treinamento Resistido , Teste de Esforço , Feminino , Treinamento Intervalado de Alta Intensidade/métodos , Humanos , Pessoa de Meia-Idade , Distribuição Aleatória
9.
J Community Health ; 42(5): 968-973, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-28382455

RESUMO

The purpose of this project was to determine the effect of diet, physical activity, and access to fruits, vegetables on weight status of children who reside in a low-income rural area. 153 3rd-6th graders were assessed for physical activity, sedentary behavior, fruit and vegetable consumption and access to physical activity, fruits and vegetables. Physical activity and sedentary behavior was objectively assessed via accelerometery. Fruit and vegetable consumption was assessed by direct observation and a recall questionnaire. Access was assessed by a questionnaire. Regression analysis was used to determine relationships with weight status as measured by BMI. On average children met physical activity requirements (71 min of MVPA) per day which significantly related to children's weight status (p = .016). Sedentary behavior was also related to weight status (p = < 0.001). Participants' access to physical activity opportunities near the home was not significantly related to their physical activity levels or weight status. Fruit and vegetable consumption was not related to BMI or access to fruits and vegetables. The results of this study suggested that children's physical activity and sedentary behavior impacts weight status of children residing in a rural environment.


Assuntos
Dieta/estatística & dados numéricos , Comportamento Alimentar/fisiologia , Abastecimento de Alimentos/estatística & dados numéricos , Obesidade Infantil/epidemiologia , População Rural/estatística & dados numéricos , Comportamento Sedentário , Criança , Estudos de Coortes , Exercício Físico , Feminino , Frutas , Disparidades nos Níveis de Saúde , Humanos , Masculino , Verduras
10.
Pediatr Exerc Sci ; 27(1): 160-7, 2015 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-25249496

RESUMO

This study examined the acute effects of a 10-min teacher-implemented classroom-based activity break (AB) on physical activity participation and time on-task in a preschool-age population. 118 (M age = 3.80 ± 0.69 years) students from one preschool served as participants. The intervention took place over 4 days: 2 days AB were conducted and 2 days typical instruction occurred. Physical activity was monitored via accelerometry and time on-task was measured by direct observation. Results demonstrated that AB led to a higher percent of moderate-to-vigorous physical activity (MVPA) during the AB (M = 29.7%, p < .001). Breaks also promoted more on-task behavior (F1,117 = 18.86, p < .001) following the AB. Specifically, the most off-task students before the break improved on-task behavior by 30 percentage points (p < .001). Percent of school day MVPA was also higher during AB days (t117 = 3.274, p = .001). Findings indicate teachers may improve time on-task postbreak for preschoolers with a short bout of physical activity in the classroom, especially in children who are the most off-task. In addition, classroom-based AB resulted in marginal increases in MVPA during breaks that influenced whole day activity.


Assuntos
Atenção/fisiologia , Comportamento Infantil/fisiologia , Exercício Físico/psicologia , Acelerometria , Pré-Escolar , Exercício Físico/fisiologia , Feminino , Humanos , Masculino , Modelos Educacionais , Instituições Acadêmicas , Fatores de Tempo
11.
Children (Basel) ; 11(2)2024 Feb 02.
Artigo em Inglês | MEDLINE | ID: mdl-38397295

RESUMO

The purpose of this study was to examine the acute effects of an active reading intervention on physical activity (PA) levels in preschoolers. Participants were recruited from the 3-5-year-old classes at two preschools. A total of six classrooms and 37 children participated in three conditions: an active reading book read by a researcher (Act_R) trained in active play techniques, an active reading book read by a preschool classroom teacher (Act_T), and a book about health behavior read by both the researcher and the teacher (Sed_H). The order in which classes received each condition was randomized. The Actigraph accelerometer assessed PA. Motor skills were assessed with the Peabody Motor Development Scale, 2nd Edition. Participants spent significantly more time in sedentary behavior during the Sed_H condition compared to Act_R (p < 0.000) and Act_T (p < 0.008). Participants spent significantly more time in MVPA during Act_R compared to Act_T (p = 0.030), Act_T compared to Sed_H (p < 0.001), and Act_R compared to Sed_H (p < 0.001). The amount of MVPA participation within the active reading sessions was not dependent upon the level of fundamental motor skill competence. Active reading books may provide a feasible method to incorporate physical activity and active play into the preschool day.

12.
Obes Pillars ; 9: 100097, 2024 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-38268522

RESUMO

Background: College students encounter challenges in managing their weight. The Coronavirus Disease 2019 (COVID-19) pandemic exacerbated the problem. The purpose of this study was to determine the effect of a motivational interviewing (MI) intervention compared to online education (control) on body composition and self-determination theory constructs among college students with overweight. Methods: This was a randomized clinical trial of 40 college students comparing an MI versus a control group. The MI group received monthly interviews: three face-to-face interviews before the pandemic, and three video chat interviews after the outbreak of COVID-19 spanning a total of six months. The control group received six, monthly education modules. Body composition was measured by the iDexa and self-determination theory (SDT) variables were assessed with surveys. Results: Mixed ANOVAs from pre-post revealed significant changes in fat mass (p = .03, η2 = 0.22), lean mass (p < .05, η2 = 0.18), body fat percentage (p < .01, η2 = 0.37), autonomy (p < .01, η2 = 0.38), relatedness (p < .01, η2 = 0.41), amotivation (p = .01, η2 = 0.29), external regulation (p = .02, η2 = 0.23), identified regulation (p = .02, η2 = 0.25), integrated regulation (p < .00, η2 = 0.49), and intrinsic regulation (p = .01, η2 = 0.27). Conclusions: In this exploratory analysis, MI demonstrated a positive trend in body composition maintenance when compared to online education among overweight college students during a national pandemic. Future studies utilizing MI would enhance the literature by further investigating the relationship between MI and SDT and measuring body composition.Clinicaltrials.gov. identifier: NCT04130386.

13.
JMIR Rehabil Assist Technol ; 11: e50582, 2024 Feb 12.
Artigo em Inglês | MEDLINE | ID: mdl-38345838

RESUMO

BACKGROUND: Youth (age 15-24 years) with and without disability are not adequately represented enough in exercise research due to a lack of time and transportation. These barriers can be overcome by including accessible web-based assessments that eliminate the need for on-site visitations. There is no simple, low-cost, and psychometrically sound compilation of measures for physical fitness and function that can be applied to youth with and without mobility disabilities. OBJECTIVE: The first purpose was to determine the statistical level of agreement of 4 web-modified clinical assessments with how they are typically conducted in person at a laboratory (convergent validity). The second purpose was to determine the level of agreement between a novice and an expert rater (interrater reliability). The third purpose was to explore the feasibility of implementing the assessments via 2 metrics: safety and duration. METHODS: The study enrolled 19 ambulatory youth: 9 (47%) with cerebral palsy with various mobility disabilities from a children's hospital and 10 (53%) without disabilities from a university student population. Participants performed a battery of tests via videoconferencing and in person. The test condition (teleassessment and in person) order was randomized. The battery consisted of the hand grip strength test with a dynamometer, the five times sit-to-stand test (FTST), the timed up-and-go (TUG) test, and the 6-minute walk test (6MWT) either around a standard circular track (in person) or around a smaller home-modified track (teleassessment version, home-modified 6-minute walk test [HM6MWT]). Statistical analyses included descriptive data, intraclass correlation coefficients (ICCs), and Bland-Altman plots. RESULTS: The mean time to complete the in-person assessment was 16.9 (SD 4.8) minutes and the teleassessment was 21.1 (SD 5.9) minutes. No falls, injuries, or adverse events occurred. Excellent convergent validity was shown for telemeasured hand grip strength (right ICC=0.96, left ICC=0.98, P<.001) and the TUG test (ICC=0.92, P=.01). The FTST demonstrated good agreement (ICC=0.95, 95% CI 0.79-0.98; P=.01). The HM6MWT demonstrated poor absolute agreement with the 6MWT. However, further exploratory analysis revealed a strong positive correlation between the tests (r=0.83, P<.001). The interrater reliability was excellent for all tests (all ICCs>0.9, P<.05). CONCLUSIONS: This study suggests that videoconference assessments are convenient and useful measures of fitness and function among youth with and without disabilities. This paper presents operationalized teleassessment procedures that can be replicated by health professionals to produce valid and reliable measurements. This study is a first step toward developing teleassessments that can bypass the need for on-site data collection visitations for this age group. Further research is needed to identify psychometrically sound teleassessment procedures, particularly for measures of cardiorespiratory endurance or walking ability.

14.
J Phys Act Health ; 20(2): 106-111, 2023 02 01.
Artigo em Inglês | MEDLINE | ID: mdl-36509090

RESUMO

BACKGROUND: Teacher-led strategies targeting verbal prompting and demonstrated modeling can increase preschoolers' physical activity levels; however, it is unknown which strategy promotes higher levels. The purpose of this study was to explore whether teacher verbal prompting or demonstrated modeling elicits higher levels of physical activity among preschoolers. METHODS: Participants included 117 (56 females and 61 males; mean = 3.77 y) preschoolers who were observed for 3 days during regular preschool instructions. The System for Observing Student Movement in Academic Routines and Transitions observation system assessed verbal prompting and demonstrated modeling of the teachers, and preschoolers wore an ActiGraph accelerometer to measure physical activity. RESULTS: The multivariate analysis of variance results showed a significant difference for verbal prompting (P < .001), demonstrated modeling (P = .032), light physical activity (P < .001), and moderate to vigorous physical activity (MVPA; P < .001) between segments of the preschool day. A stepwise linear regression showed that preschooler's MVPA (P = .005) and light physical activity and MVPA (P = .036) were significantly related to demonstrated modeling, but not verbal prompting. During indoor time, light physical activity and MVPA were highest during large group, work time, and morning group, where teacher demonstrated modeling occurred the most. CONCLUSIONS: Teacher demonstrated modeling had a significant relationship to preschoolers' MVPA and light physical activity levels, while teacher verbal prompting did not.


Assuntos
Exercício Físico , Instituições Acadêmicas , Masculino , Feminino , Pré-Escolar , Humanos , Estudantes , Modelos Lineares , Acelerometria
15.
Res Q Exerc Sport ; 94(4): 1011-1019, 2023 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-36006695

RESUMO

Purpose: Physical inactivity is linked with several chronic diseases and poor academic outcomes. This study aimed to examine the effect an under-the-desk band would have on middle school students' physical activity level, and academic engagement. Methods: Two local middle school classrooms (n = 42, M = 20, F = 22) participated in the study, which was conducted over 14 weeks. Physical activity was measured with accelerometry, and academic engagement was assessed using momentary time sampling. Enrolled participants were provided an accelerometer to wear upon entering the classroom. The baseline period lasted for 36 days. During the intervention period, which lasted for the next 30 days, an under-the-desk band was provided to students to freely fidget at their desks. After the study, 13 participants (M = 5, F = 8) in Class A were included in final physical activity analysis, and the 6 participants (M = 3, F = 3) in Class B were included in the academic engagement analysis. Results: Class A had significant increases in percentage of sedentary time (MD = -12.91%, ES = .88) in addition to significant decreases in the percentage of light (MD = 8.82%, ES = .67), moderate (MD = 3.08%, ES = .84), and vigorous (MD = -.04%, ES = .63) physical activity time during the intervention period compared to the baseline period. No significant or meaningful changes occurred in academic engagement with the use of the under-the-desk band. Conclusions: This study high- lights the importance of finding appropriate methods to increase physical activity for adolescents.


Assuntos
Exercício Físico , Instituições Acadêmicas , Adolescente , Humanos , Estudantes , Comportamento Sedentário , Acelerometria
16.
Percept Mot Skills ; 130(4): 1453-1471, 2023 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-37247423

RESUMO

Previous mastery motivational climate (MMC) movement interventions have enhanced fundamental motor skill (FMS) competence across diverse groups of preschool-age children. Yet, an adequate intervention length has not been established. Our purposes in this study were to (i) compare FMS competence in preschool children across two doses of MMC interventions, and (ii) describe changes in children's FMS 'mastery' across doses. We used secondary data analysis from a larger MMC intervention study in which 32 children (Mage = 4.4) received FMS testing (TGMD-3) at the mid-point of intervention and at post-intervention. A two-way mixed ANOVA with Group as the independent variable and FMS competence across three Time points as the repeated measure was significant for both Group and Time main effects for locomotor and ball skill competences separately. There was a statistically significant interaction between Group and Time on locomotor (p = .02) and ball skills (p < .001). Both groups showed significant improvements in their locomotor skills at each time point, but the intervention group improved faster than the comparison group. For ball skills, only the MMC group significantly improved by mid-intervention, and the comparison group showed significant improvements from pre-to post-intervention only. Children in this study were most likely to show mastery in running first, followed by sliding at mid-intervention. Few children mastered skipping, galloping, and hopping across the study. For ball skills, overhand and underhand throwing were more likely to be mastered, and few children mastered one and two-hand striking across the study. Collectively, these findings suggest that duration of instructional minutes may not be the most effective proxy for identifying a dose-response relationship of MMC intervention. Moreover, focusing on the patterns of skill mastery can help inform researchers and practitioners as to how to allocate instructional time during MMC interventions to optimize FMS competence for young children.


Assuntos
Destreza Motora , Corrida , Humanos , Pré-Escolar , Destreza Motora/fisiologia , Movimento/fisiologia , Motivação
17.
Med Sci Sports Exerc ; 55(7): 1151-1159, 2023 07 01.
Artigo em Inglês | MEDLINE | ID: mdl-36878019

RESUMO

INTRODUCTION: Few studies have examined the comprehensive impact of adaptive exercise interventions across multiple functional domains (i.e., physical and cognitive health) in adults with developmental disabilities (DD). METHODS: The present study examined the effects of a 10-wk (2 sessions per week, 1 h per session) adapted Zumba ® intervention on the Six-Minute Walk Test (6MWT), Timed Up and Go (TUG), Clinical Test of Sensory Interaction on Balance, body composition, and executive function in 44 adults with DD age 20.8-69.2 yr. In addition to examining overall differences between control and intervention conditions, the effects of different Zumba ® tempos (normal/low) were examined. A crossover design with a 3-month wash-out period was used such that participants in the intervention also served as controls. The participants were quasi-randomized into one of two Zumba ® conditions: low-tempo Zumba ® (0.75 normal speed; n = 23) and normal-tempo Zumba ® ( n = 21). RESULTS: A significant condition-time interaction was observed for the 6MWT and TUG; participants in the low and normal-tempo Zumba ® conditions significantly increased the distance walked for the 6MWT and reduced the total time for the TUG. No improvement was observed during the control condition for these measures. There were no significant condition-time interactions for the other outcomes. CONCLUSIONS: These findings have implications on the efficacy and implementation of virtual Zumba ® programs to increase abilities related to independent performance of activities of daily living in adults with disabilities.


Assuntos
Atividades Cotidianas , Exercício Físico , Criança , Adulto , Humanos , Adulto Jovem , Pessoa de Meia-Idade , Idoso , Deficiências do Desenvolvimento
18.
Res Q Exerc Sport ; 94(3): 668-677, 2023 09.
Artigo em Inglês | MEDLINE | ID: mdl-35442166

RESUMO

Purpose: The purpose of this study was to explore how parent involvement influenced the effectiveness of a movement intervention targeting gross motor skills and physical activity behavior in preschool-aged boys and girls. Methods: Parents received training at monthly school-based sessions and online to implement the movement intervention once per month at school and once per week at home across 6 months (N = 104; Mage = 48.30 months, SD = 6.90). Children completed the Test of Gross Motor Development-3 at baseline and wore physical activity trackers 24/7 for six weeks during the intervention. COVID-19 disrupted the intervention and prevented immediate post testing. Children (N = 60; Mage = 60.86 months, SD = 6.57) who returned to the center one year later completed gross motor skill retention testing. Results: For each additional school-based session attended by the parents (up to six), children's locomotor and manipulative skills were 1.87 and 1.95 points higher, respectively, at the start of the following academic year. For physical activity, each session increase in attendance at the school-based component of the intervention resulted in an additional 1455 steps in average weekly step count. Conclusion: Increased parent engagement demonstrated greater change in gross motor skills and larger acute physical activity responses. Understanding barriers that impact the level of parental intervention engagement (i.e., dose) also provides insight into why some children learn and others do not within a parent-led intervention. Although the implementation and results of this study were impacted by COVID, these data can help researchers optimize future intervention strategies.


Assuntos
COVID-19 , Masculino , Feminino , Humanos , Pré-Escolar , Atividade Motora , Exercício Físico/fisiologia , Pais/educação , Instituições Acadêmicas , Destreza Motora/fisiologia
19.
SAGE Open Med ; 10: 20503121211073434, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35070315

RESUMO

OBJECTIVES: Women have a higher prevalence of metabolic syndrome than their male counterparts, and interventions should target women with or at risk for metabolic syndrome. The objective of this study was to compare two intervention strategies on long-term outcomes following the completion of an exercise intervention. METHODS: Twenty-six women (M age = 43.35 ± 9.03) with at least one risk factor for metabolic syndrome were randomized into either a motivational interviewing group (n = 10) or self-regulation-based mobile messaging control group (n = 16) as a 12-week follow-up to a 10-week, 30-session exercise intervention. Outcomes of interest were body fat percentage, bone mineral density, waist circumference, systolic blood pressure, diastolic blood pressure, triglycerides, high-density cholesterol, and fasting blood glucose. RESULTS: Mixed ANOVAs revealed a significant effect for group × time for body fat percentage F(1, 24) = 8.30, p = 0.01, η p 2 = 0.26, bone mineral density F(1, 24) = 6.68, p = 0.02, η p 2 = 0.22, waist circumference F(1, 24) = 10.35, p = 0.01, η p 2 = 0.30, triglycerides F(1, 24) = 5.06, p = 0.03, η p 2 = 0.17, and systolic blood pressure F(1, 24) = 5.39, p = 0.03, η p 2 = 0.18 all in favor of the motivational interviewing group after 12 weeks when compared to the self-regulation-based mobile messaging group. No significant effect for group × time was noted for diastolic blood pressure p = 0.36, η p 2 = 0.04, high-density cholesterol p = 0.08, η p 2 = 0.12, or fasting blood glucose p = 0.85, η p 2 = 0.01 when comparing the motivational interviewing and self-regulation-based mobile messaging groups. CONCLUSIONS: Motivational interviewing may be a more impactful solution to extend the effects of exercise intervention studies compared to a self-regulation-based mobile messaging control group. Future interventions should focus on increasing sample size, utilizing more objective measures of body composition, utilizing booster sessions, and increasing the length of follow-up periods.

20.
Percept Mot Skills ; 129(5): 1396-1412, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35977721

RESUMO

Children's self-perceived competence is critical for their engagement in fundamental motor skills (FMS), although these perceptions are highly inaccurate until around age seven (grade 2). Moreover, FMS competence is highly correlated with physical activity engagement in childhood. In this study we examined: (a) if children's perceptions of their FMS competence differed after they were allowed to perform the skill or observe their performance, and (b) if the accuracy of children's perceived competence changed under those conditions. Child participants (N = 76; K-second grade) judged their own competence for three physical skills (running, skipping and dribble or hopping) on the Harter and Pike Pictorial Scale of Perceived Competence and Social Acceptance under three conditions: (a) a no-performance baseline, (b) after performing each skill, and (c) after observing themselves performing the skill. A repeated measures analysis of variance (ANOVA) indicated that their perceived competence differed across these conditions for running but not for skipping/hopping (p = .556) or for dribbling (p = .368). Spearman's rho correlations showed that their perceived running competence scores better predicted their actual competence after observing their performance (rs = .25, p = .029) than after other conditions. Both performing and observing their performance were associated with changes in perceptions of running competence. Future research should focus on how and when children's perceived competence is assessed and how perceptions relate to FMS and physical activity engagement.


Assuntos
Destreza Motora , Percepção , Exercício Físico , Humanos
SELEÇÃO DE REFERÊNCIAS
DETALHE DA PESQUISA