The Effects of Various High-Intensity Combined Resistance and Aerobic Training on Physical and Perceptual Outcomes in Recreationally Active Adults.

Not Applicable

• Conditions: Muscular Strength; Cardiorespiratory Fitness; Physical Activity Behaviours; Healthy, recreationally active adults; Perceptual Responses to Exercise; Hormonal responses to exercise; Musculoskeletal - Normal musculoskeletal and cartilage development and function; Cardiovascular - Normal development and function of the cardiovascular system; Metabolic and Endocrine - Normal metabolism and endocrine development and function; Mental Health - Studies of normal psychology, cognitive function and behaviour

• Registration Number: ACTRN12624000556549
• Lead Sponsor: niversity of Technology Sydney

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2024-05-02
• Last Update Posted: 6 May 2024

Recruitment & Eligibility

• Status: ot yet recruiting
• Sex: All
• Target Recruitment: 58

Inclusion Criteria

Apparently healthy, recreationally active adults that have been participating in at least 30 minutes of moderate or 20 minutes of vigorous activity on at least 3 days per week for the last 6 months. At least 1 of these training sessions must be resistance training (e.g., lifting weights, bodyweight training). This is to ensure participants are accustomed to both aerobic and resistance exercise stimuli (at a level reaching physical activity guidelines) to account for the possible confounding effects of training status. 6 months was chosen as the minimum participation duration to be currently recreationally active as this is reflects a time period where individuals have participated long enough to experience possible health benefits. Approximately 50% of participants drop out within the first 6 months.
-Aged 18-65 years.
-Male and female.
-This study welcomes participants from Indigenous Australian backgrounds, those who identify as LGBTIQ+ and those form culturally and linguistically diverse backgrounds.
-Willingness to refrain from participating in additional forms of high-intensity activity or resistance exercise during the study (e.g., competitive or social sport, other group training, other high-intensity aerobic or resistance exercise),
-Willingness to give written informed consent and willingness to participate to and comply with the study.

Exclusion Criteria

-Clinical populations (i.e., individuals requiring assessment and clearance to exercise by a health professional such as a general practitioner or exercise physiologist due to their condition or pathology) will be excluded.
-Individuals with metabolic or chronic disease, musculoskeletal injuries will be excluded.
-Individuals undergoing pharmacological treatment for psychological disorders will be excluded.
-Pregnant women will also be excluded.
-Individuals who participate in competitive/ recreational sport or training will be excluded as participants will be asked to refrain from additional high-intensity aerobic and/ or resistance exercise during the study.
-Anti-inflammatory and/or pharmacological treatment as this may interfere with inflammatory and metabolic blood markers and exercise adaptations. Exclusion based on these treatments will be done on a case-by-case basis. Treatments will be identified in the health pre-screening and participants will be excluded if there is evidence linking the treatment to changes in the physical and mental health markers that will be measured in this study.
-Contraindications to exercise as identified in the health pre-screening (Exercise and Sports Science Australia, Adult pre-exercise screening tool) (ESSA APSS).

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Muscular Strength (lower body)[One repetition maximum (barbell parallel back squat) Baseline (testing day 1) after 7-weeks training (testing day 1)];Muscular strength (upper body)[One repetition maximum (barbell flat bench press) Baseline (testing day 1) after 7-weeks training (testing day 1)]