Biomedical subjects

Heather A Hausenblas

Publications and source records attributed to Heather A Hausenblas.

10 recordsLinked to original sources

PubMed2005

Changing weight-loss expectations: a randomized pilot study.

Participants in weight-loss programs expect unreasonably large weight losses and believe that such reductions will produce dramatic improvements in their lives. The failure to achieve such benefits may contribute to poor maintenance of lost weight. This randomized pilot study investigated a new cognitive-behavioral intervention designed to modify unrealistic expectations regarding weight loss and its likely impact on appearance, attractiveness, and self-esteem. Twenty-eight overweight and obese young women who completed 10 sessions of standard behavioral weight-loss treatment were randomly assigned to 10 additional sessions of either standard behavioral (SB) treatment or a reformulated cognitive-behavioral (RCB) treatment. At posttreatment, the RCB intervention produced more realistic weight-loss expectations, decreased participants' motivation to lose weight as a means of improving self-confidence, and increased their overall self-esteem, compared with the SB condition (all p's<.05). The mean posttreatment weight changes achieved in the SB (-6.2+/-4.5 kg) and RCB (-5.5+/-3.6 kg) conditions were equivalent, as were the amounts of weight regained during a 6-month follow-up (SB=2.3+/-2.7 kg; RCB=1.5+/-1.7 kg). Collectively, these findings indicate that the RCB intervention was effective in changing unrealistic weight-loss expectations, but it did not produce significantly better maintenance of lost weight than did the SB intervention.

Adolescent↗

PubMed2005

Exercise and diet determinants of overweight women participating in an exercise and diet program: a prospective examination of the theory of planned behavior.

The purpose of this study was to examine prospectively the ability of direct and belief-based measures of the theory of planned behavior (TPB) constructs to predict exercise and diet intention and behavior of overweight women. Participants were 117 overweight, community-dwelling women and university students enrolled in a 4-week exercise and diet program. Participants completed baseline measures of demographic characteristics and the TPB constructs. Their exercise and diet adherence were also recorded. We found that: (1) the direct measure of perceived behavioral control (PBC) predicted exercise intention, (2) the direct measures of instrumental attitude, subjective norm, and PBC predicted diet intention, and (3) none of the direct or belief-based measures of the TPB constructs predicted 4-week exercise or diet behavior. Furthermore, several beliefs were associated with the direct measures of attitude, subjective norm, PBC, and intention. Implications of these results for designing exercise and diet interventions with overweight women are discussed.

Adolescent↗

PubMed2004

Electromyogram-triggered neuromuscular stimulation and stroke motor recovery of arm/hand functions: a meta-analysis.

Debate persists about the effectiveness of poststroke behavioral interventions for progress toward motor recovery. The current meta-analysis assessed the effect of electromyogram (EMG)-triggered neuromuscular stimulation on arm and hand functions. Computer searches of PubMed and Cochran databases, as well as hand searches of reference lists identified seven EMG-triggered neuromuscular stimulation studies. Outcome measures focused on arm and hand motor capability functions. In addition, the quality of each study was rated on three guidelines: randomization, double blind, and dropouts. After adjusting data for consistency in the arm/hand outcome measures and to avoid bias, five active stimulation studies were included in the analysis. Rehabilitation treatment in each study focused on wrist extension. The total number of individuals in the treatment groups was 47 whereas the control groups had 39 subjects. The meta-analysis revealed a significant overall mean effect size (delta=0.82, S.D.=0.59). A homogeneity test indicated that the pooled standardized effect sizes estimated the same treatment effect. A fail-safe test for null effect findings revealed that 15 studies were required to reduce the large effect (0.82) to a small effect (0.20). These improved wrist extension motor capabilities findings support EMG-triggered neuromuscular stimulation as an effective poststroke protocol.

Arm↗

PubMed2003

Validation of a stages of exercise change questionnaire.

The purpose of this study was to examine evidence for the validity of a stages of change measure of the Transtheoretical Model for exercise behavior. Participants were 152 university students (53.3% women, 71.6% Caucasian, M age = 19.18 years) who completed processes of change, self-efficacy, decisional balance, stages of change, and exercise behavior questionnaires as well as a maximal treadmill test. Participants in the action and maintenance stages had the highest strenuous (PC/C/P < A/M) and moderate (PC/C < A/M) self-reported exercise behavior. Those in the maintenance stage had the highest estimated aerobic fitness (PC/P < MA). The differences between the early stages (PC, C, and P) and the later stages (A and M) as described by the first function were primarily due to the behavioral process of change. The differences between the extreme stages (PC and M) and the middle stages (C, P, and A) were due to the experiential processes of change and the pros of decisional balance. The hypothesized patterns of stage differences were partially supported. Failure to obtain full support may have been due to methodological issues or inherent difficulties in detecting evidence for the validity of stages of change measures.

Adult↗

PubMed2003

Affective responses of high and low body satisfied men to viewing physique slides.

The purpose of this study was to examine the acute affective responses of high and low body satisfied (BS) men who viewed physique slides of the male ideal (model-slides), physique slides of themselves (self-slides), and nonphysique slides (control-slides). During three laboratory visits the participants viewed the slides from one of the three conditions, and they completed pre-, in-, and post-task affective measures. It was found that the: (a) high BS group reported less mood disturbance than the low BS group; (b) participants reported an increase in depression, anger, and body dissatisfaction after viewing the self-slides; (c) participants indicated a decrease in body dissatisfaction after viewing the model-slides; and (d) viewing the control-slides did not result in affective changes. Findings suggest that viewing physique slides results in increased mood disturbance, regardless of BS level.

Journal Article↗

PubMed2002

Relationship among body image, exercise behavior, and exercise dependence symptoms.

OBJECTIVE: The purpose of the present study was to examine the relationship among body image, exercise behavior, body mass index (BMI), and primary exercise dependence symptoms in physically active individuals. METHOD: Male and female university students (N = 474) completed self-report measures of exercise behavior, height, weight, exercise dependence symptoms, social physique anxiety, and body satisfaction. RESULTS: Hierarchical multiple regressions with forced block entry by gender were conducted to examine the effects of exercise behavior, BMI, and exercise dependence symptoms on body satisfaction and social physique anxiety. For females, BMI was the strongest positive predictor of body dissatisfaction and social physique anxiety. For males, exercise behavior was the strongest negative predictor of body dissatisfaction and social physique anxiety. DISCUSSION: It was concluded that after controlling for the effects of BMI and exercise behavior, primary exercise dependence symptoms were not strong predictors on body image, especially for females.

Adult↗

PubMed2002

Relationship among sex, imagery, and exercise dependence symptoms.

There is limited research examining the physical (e.g., sex) and psychological correlates (e.g., imagery) of exercise dependence despite its harmful effects. The purposes of this study were to examine sex differences and the predictive ability of exercise imagery for exercise dependence symptoms. Participants were 408 university students who completed measures of exercise imagery, exercise behavior, and exercise dependence. The results indicated that men reported more exercise dependence symptoms than women. For the women, exercise behavior, appearance imagery, and energy imagery were positive predictors of exercise dependence symptoms. In contrast, for the men, exercise behavior and energy imagery positively predicted exercise dependence symptoms. Consistent with suggestions by C. Hall (1995), exercise imagery may be related to exercise dependence symptoms.

Adult↗

PubMedDate not supplied

Women's exercise beliefs and behaviors during their pregnancy and postpartum.

Limited research examines women's beliefs about the value of exercise and their actual exercise behaviors during pregnancy and postpartum. A retrospective study of 74 postpartum women was conducted to examine women's behavioral, normative, and control beliefs about exercising during pregnancy and postpartum and to determine their most salient beliefs. In addition, women's prepregnancy, pregnancy, and postpartum exercise behavior was examined. We found that 1) the most common exercise beliefs during pregnancy were that exercise improves mood and physical limitations (e.g., nausea) obstructed exercise participation; 2) the most common exercise beliefs during postpartum were that exercise controls weight gain and a lack of time obstructed exercise participation; 3) women's husband/partner and family members most strongly influenced their pregnancy and postpartum exercise behavior; and 4) women exercised more before they were pregnant than during pregnancy and postpartum. Researchers and health care professionals are encouraged to examine and understand women's beliefs about exercising during their pregnancy and postpartum and design their interventions accordingly, in an attempt to increase women's exercise behavior during their childbearing years.

Adult↗

PubMedDate not supplied

Sex differences in delayed onset muscle pain.

OBJECTIVE: In contrast to the research using typical experimental pain stimuli, there is no consensus that women are more sensitive to delayed onset muscle pain than men. The purpose of this study was to examine sex differences in delayed onset muscle pain with use of a quantified stimulus intensity and multidimensional and valid pain measures. METHODS: Ninety-five participants (49.5% women) completed eccentric exercise and then returned to the laboratory at 24 and 48 hours postexercise. The same relative intensity of the eccentric exercise was administered to women and men based on their eccentric strength. RESULTS: The occurrence of muscle pain was confirmed by increases in intensity, F2, 182 = 162.28, P<0.01, eta = 0.64, and unpleasantness, F2, 182 = 204.03, P < 0.01, eta = 0.69, and standardized pain ratings, F2, 180 = 67.44, P < 0.01, eta = 0.43. The affective ratios indicated that the muscle pain was more unpleasant than intense. No sex differences were detected except that men reported higher affective ratios than women, F1, 92 = 4.06, P < 0.05, eta = 0.04. DISCUSSION: The absence of higher muscle pain ratings in women than men in this investigation resembles a review of the delayed onset muscle soreness and pain literature. However, the findings contradict a few other acute muscle pain investigations, in which actual muscle tissue damage was not induced by eccentric contractions. Additional research is required to identify the parameters that influence the detection of sex differences.

Adult↗

PubMedDate not supplied

Exercising for two: examining pregnant women's second trimester exercise intention and behavior using the framework of the theory of planned behavior.

Research examining the motivational determinants of exercising during pregnancy is mostly atheoretical, despite the need for theory-based designs. The study's main objective was to prospectively examine women's exercise intention and behavior from their second to third pregnancy trimester using the theory of planned behavior (TPB). Participants were 89 pregnant women who completed self-reported measures of their exercise attitude, subjective norm, perceived behavioral control, intention, and behavior. Hierarchical regression analyses indicated: 1) intention and not perceived behavioral control significantly predicted exercise behavior; and 2) attitude was the strongest determinant of exercise intention, followed by perceived behavioral control, and subjective norm. The study findings provide preliminary support for the TPB as an effective framework for examining exercising during pregnancy. Understanding women's thoughts, feelings, and beliefs about exercise can assist intervention specialists with developing and implementing effective programs promoting exercise during pregnancy.

Adult↗