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Home-based REsistance vs a Home-based FLEXbility Exercise Programmes on Muscular Endurance and Flexibility in Adults

Effect of a Home-based REsistance Exercise vs a Home-based FLEXbility Exercise Programme on Muscular Endurance and Flexibility in Healthy Adults

Status
UNKNOWN
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04574674
Acronym
REFLEX
Enrollment
72
Registered
2020-10-05
Start date
2020-12-06
Completion date
2021-12-31
Last updated
2021-08-20

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Exercise

Keywords

muscle endurance, muscle strength, muscular fitness, resistance training, strength training, physical activity, voluntary failure

Brief summary

This study will evaluate the effects of a home-based resistance exercise programme v/s a home-based flexibility exercise programme on muscular endurance and flexibility on healthy adults. Half of the participants will undergo a 12-weeks home-based resistance exercise programme while the other half will undergo a 12-week home-based flexibility exercise programme.

Detailed description

Regular resistance training can lead to a variety of health benefits including increases in muscle size and strength, reductions on body fat, increased metabolic rate, glycaemic control, decreased blood pressure and improved blood lipid profiles. Because of this, current physical activity guidelines recommend undertaking muscle strengthening activities involving major muscle groups two days a week or more, alongside at least 150 minutes per week of moderate intensity physical activity (or 75 minutes per week of vigorous intensity physical activity). However, only small portion of the population achieves the muscle strengthening aspect of the guidelines. Why participation in muscle-strengthening exercise is low is not clear but people identify several barriers including the lack of time, the effort involved, lack of purpose, pain due to injury, negative experiences of prescriptive exercise, apathy, illness, injury inclement weather and work commitment. In addition, some women have expressed a worry of looking 'manly' or 'bulking up' if they undertake resistance exercise. A further potential barrier is lack of access to a gym with appropriate equipment to perform resistance exercise, or dislike of a gym setting. Thus, identifying approaches to find a safe, enjoyable and accessible programme that minimises the burden of performing resistance exercise, and identifying a minimal amount of resistance training which can provide benefits is a key issue which could help more people to undertake muscle strengthening exercises. Meta-analyses indicate that while performing resistance exercise two or more times per week of resistance exercise per muscle group appears to be optimal to maximise strength gains, a single set of resistance exercise per muscle group per week, if performed to failure is sufficient to induce substantial strength changes. The main aim of this study is to compare the effects of an app-based home-based resistance exercise programme vs a home-based flexibility programme on muscular endurance (number of press-ups, time achieved in half-squat test, and time achieved in plank test, assessed online during a zoom call) and flexibility (sit and reach, assessed online during a zoom call) in healthy adults. Secondary aims are a) to determine participants' adherence to both exercise programmes, b) to determine participants' choice of weekly exercise volume (compared to minimum prescription) in both exercise programmes c) to determine participants' distribution of exercise throughout the week in both exercise programmes d) to determine the effects of a exercise programmes on well-being, and finally e) to determine participants' perceptions, feelings, thoughts, enjoyment, tolerance and acceptability of both exercise programmes. The study is a randomized control trial in which the flexibility exercise group will undergo a 12-week home-based flexibility exercise programme. The resistance exercise group will undergo a 12-week home-based resistance exercise programme. Participants will be asked to perform a minimum amount of resistance or flexibility exercise of 1 set/week for each of six exercises and will have the opportunity to increase their volume of exercise to 2 sets or 3 sets/week per exercise if it is their choice. In addition, participants will be able to distribute the exercises during the week according to their preference (all in one day or spread over several days of the week, etc.). Participants will be encouraged to have a minimum of one day of rest per week.

Interventions

BEHAVIORALFlexibility exercise programme

Static passive flexibility exercises.

Body weight and resistance bands exercises.

Sponsors

University of Glasgow
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
SINGLE (Outcomes Assessor)

Masking description

Members of the research team that perform measurements are blinded to group allocation.

Intervention model description

Randomised controlled trial with two groups, flexibility exercise group and resistance exercise group.

Eligibility

Sex/Gender
ALL
Age
18 Years to 64 Years
Healthy volunteers
Yes

Inclusion criteria

* 18-64 years old. * Perform 30 minutes or more of aerobic vigorous physical activity per week. * Do not to perform any kind of resistance exercise.

Exclusion criteria

* Failure of the Physical Activity Readiness Questionnaire Plus (PAR-Q+) * Perform 30 minutes or more of vigorous intensity exercise from the International Physical Activity Questionnaire (IPAQ) * To have a job that compromises manual labour * History of cardiovascular disease * Diabetes * Any other illness that would prevent the participation in a resistance exercise or flexibility exercise programme.

Design outcomes

Primary

MeasureTime frameDescription
Number of press ups0 -12 weeksChange in number of press ups

Secondary

MeasureTime frameDescription
Distance achieved in the sit-and-reach test0-12 weeksChange in distance achieved in the sit-and-reach test
Number of press-ups0-6 weeksChange in the number of press ups
Time holding half-squat position0-12 weeksChange in the time holding half squat position
Time holding plank position0-12 weeksChange in the time holding plank position

Countries

United Kingdom

Contacts

Primary ContactJason Gill, PhD
jason.gill@glasgow.ac.uk0141 330
Backup ContactMaria Fernanda Gabler, MSc
m.gabler-trisotti.1@research.gla.ac.uk0141 330

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026