Adherence to a Strength Training Intervention in Adult Women

Background It is hypothesized that exercise can lead to a decrease in breast cancer risk through several hormonal and non-hormonal mechanisms. The Women in Steady Exercise Research (WISER) study investigated the effects of aerobic exercise on premenopausal sex hormone levels. Methods 391 sedentary, healthy, young eumenorrheic women were randomized into an exercise intervention of 30 minutes of aerobic exercise 5 times a week for approximately 16 weeks (n=212), or into a control group (n=179). Serum levels of estradiol, estrone sulfate, testosterone, and sex hormone binding globulin (SHBG), all in the midfollicular phase, and of progesterone, in the midluteal phase, were measured at baseline and at the end of the 16-week period. Results Compared to the controls (n=153), exercisers (n=166) experienced significant increases in aerobic fitness, lean body mass, and decreases in percent body fat. There were no significant changes in body weight and menstrual cycle length between or within groups. Progesterone decreased significantly in exercisers; however, this reduction was similar to that of the control group. No significant changes between or within groups were found for any of the other sex hormones or SHBG. Conclusions In premenopausal women, 16 weeks of 150 minutes per week of moderate aerobic exercise in young women did not significantly alter sex hormone or SHBG levels. Impact Any favorable effects that moderate aerobic exercise without an associated weight change may have on breast cancer risk in premenopausal women are unlikely to be a consequence of changes in levels of sex hormones or SHBG.

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“…Exercise adherence in stage 1 was 97.6% and 85.3% in stage 4. More details about the exercise adherence can be found somewhere else (31). …”

Section: Resultsmentioning

confidence: 99%

Effects of Aerobic Exercise on Premenopausal Sex Hormone Levels: Results of the WISER Study, a Randomized Clinical Trial in Healthy, Sedentary, Eumenorrheic Women

Smith

Phipps

Arikawa

et al. 2011

Cancer Epidemiology, Biomarkers &Amp; Prevention

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“…Since convenience ranks highly among European women, 36 simply modifying some existing physical activities to make them more time‐efficient, effective and interesting, might encourage participation. While many women enjoy typical gym environments due to their consistency, familiarity and for motivation, 53 others, especially those who are unaccustomed to exercise or have low body image, may be intimidated by such environments 53–55 . This apprehension could be largely alleviated by moving existing activities into supportive, fun settings (e.g.…”

Section: Discussionmentioning

confidence: 99%

Ethnic‐specific suggestions for physical activity based on existing recreational physical activity preferences of New Zealand women

O’Brien

Shultz

Firestone

et al. 2019

Australian and New Zealand Journal of Public Health

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Objectives: Recreational physical activities of New Zealand women were examined to develop ethnic‐specific suggestions encouraging physical activity (PA) participation as a targeted approach to reduce obesity rates among different groups. Methods: Healthy Māori, Pacific and European women (n=331; 16–45 years of age) completed an online Recent Physical Activity Questionnaire to assess recreational PA and adherence to PA guidelines. Existing PA preferences were tailored to make ethnic‐specific suggestions aimed at increasing PA participation. Results: Achievement of PA guidelines was: Māori 74%; Pacific 60%; European 70%. Highest participation across all women was for walking (Māori 72%, Pacific 60%, European 83%), followed by floor exercise (Māori 54%, Pacific 37%, European 56%). Gym‐type activities (e.g. weights, aerobics) and jogging were also common across ethnic groups. Group/team activities (dance, netball, touch football) were among the top 10 activities for Māori and Pacific, but not European women. Conclusion: Obesity rates among specific ethnic groups of New Zealand women might be reduced by promoting activities that are: family/whānau‐oriented (netball, touch), community‐linked (hula, dance) and outdoor‐based. Implications for public health: Tailoring existing PA preferences to develop ethnic‐specific sets of activity suggestions could be important avenues to increase PA participation, improving the PA habits and subsequent health of New Zealand women and their communities.

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“…The adherence of participants who dropped out was calculated by dividing the number of workout sessions attended up to the point of dropout from the study by 81 [37]. Values were compared between groups and with median rates in community-based fall prevention interventions [38]. For attrition, we measured the number of participants retained and lost at the final follow-up.…”

Section: Methodsmentioning

confidence: 99%

Tablet-Based Strength-Balance Training to Motivate and Improve Adherence to Exercise in Independently Living Older People: A Phase II Preclinical Exploratory Trial

Silveira¹,

Langenberg²,

Reve³

et al. 2013

J Med Internet Res

132

155

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BackgroundReaction time, coordination, and cognition performance typically diminish in older adults, which may lead to gait impairments, falls, and injuries. Regular strength–balance exercises are highly recommended to reduce this problem and to improve health, well-being, and independence in old age. However, many older people face a lack of motivation in addition to other strong barriers to exercise. We developed ActiveLifestyle, an information technology (IT)-based system for active and healthy aging aiming at improving balance and strength. ActiveLifestyle is a training app that runs on a tablet and assists, monitors, and motivates older people to follow personalized training plans autonomously at home.ObjectiveThe objectives were to (1) investigate which IT-mediated motivation strategies increase adherence to physical exercise training plans in older people, (2) assess the impact of ActiveLifestyle on physical activity behavior change, and (3) demonstrate the effectiveness of the ActiveLifestyle training to improve gait speed.MethodsA total of 44 older adults followed personalized, 12-week strength and balance training plans. All participants performed the exercises autonomously at home. Questionnaires were used to assess the technological familiarity and stage of behavior change, as well as the effectiveness of the motivation instruments adopted by ActiveLifestyle. Adherence to the exercise plan was evaluated using performance data collected by the app and through information given by the participants during the study. Pretests and posttests were performed to evaluate gait speed of the participants before and after the study.ResultsParticipants were 75 years (SD 6), predominantly female (64%), held a trade or professional diploma (54%), and their past profession was in a sitting position (43%). Of the 44 participants who enrolled, 33 (75%) completed the study. The app proved to assist and motivate independently living and healthy older adults to autonomously perform strength–balance exercises (median 6 on a 7-point Likert scale). Social motivation strategies proved more effective than individual strategies to stimulate the participants to comply with the training plan, as well as to change their behavior permanently toward a more physically active lifestyle. The exercises were effective to improve preferred and fast gait speed.ConclusionsActiveLifestyle assisted and motivated independently living and healthy older people to autonomously perform strength–balance exercises over 12 weeks and had low dropout rates. The social motivation strategies were more effective to stimulate the participants to comply with the training plan and remain on the intervention. The adoption of assistive technology devices for physical intervention tends to motivate and retain older people exercising for longer periods of time.

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Adherence to a Strength Training Intervention in Adult Women

Abstract: Background-The factors influencing exercise adherence are not well characterized in women in their premenopausal years.

Cited by 37 publications

References 16 publications

Effects of Aerobic Exercise on Premenopausal Sex Hormone Levels: Results of the WISER Study, a Randomized Clinical Trial in Healthy, Sedentary, Eumenorrheic Women

Effects of Aerobic Exercise on Premenopausal Sex Hormone Levels: Results of the WISER Study, a Randomized Clinical Trial in Healthy, Sedentary, Eumenorrheic Women

Ethnic‐specific suggestions for physical activity based on existing recreational physical activity preferences of New Zealand women

Tablet-Based Strength-Balance Training to Motivate and Improve Adherence to Exercise in Independently Living Older People: A Phase II Preclinical Exploratory Trial

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