NASM OPT for Gluteal Enhancement in Non-Athletic Women: An RCT

NCT ID: NCT06977958

Last Updated: 2025-05-18

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

ENROLLING_BY_INVITATION

Clinical Phase

NA

Total Enrollment

120 participants

Study Classification

INTERVENTIONAL

Study Start Date

2025-02-01

Study Completion Date

2025-06-30

Brief Summary

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This RCT evaluates a 12-week NASM OPT program targeting gluteal muscle strength, hip aesthetics (shape, lift, circumference), and low back pain in 120 non-athletic women. The intervention group performed structured resistance training, while the control group engaged in general exercise. Outcomes included gluteal strength (dynamometer), aesthetic satisfaction (Likert scale), and functional performance (squat test).

Detailed Description

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Participants were randomized to NASM OPT (3 weekly sessions: stabilization, strength, and hypertrophy phases) or general exercise (brisk walking/aerobics). Measurements at baseline and 12 weeks included gluteal strength, hip circumference, low back pain (VAS), and perceived aesthetics.

Conditions

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Low Back Pain Muscle Weakness Body Image Disturbance

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors
Single-blind (outcome assessors only; participants/instructors unblinded due to intervention nature).

Study Groups

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NASM OPT Group

Behavioral: NASM OPT Program Three 60-minute weekly sessions for 12 weeks, progressing through stabilization (weeks 1-4), strength endurance (weeks 5-8), and hypertrophy (weeks 9-12) phases. Exercises included hip thrusts, squats, and glute bridges.

Group Type EXPERIMENTAL

NASM OPT Group

Intervention Type BEHAVIORAL

Three 60-minute weekly sessions for 12 weeks, progressing through stabilization (weeks 1-4), strength endurance (weeks 5-8), and hypertrophy (weeks 9-12) phases. Exercises included hip thrusts, squats, and glute bridges.

General Exercise Group

Behavioral: General Exercise Three 60-minute weekly sessions of brisk walking and light aerobics without targeted resistance training.

Group Type ACTIVE_COMPARATOR

General Exercise Group

Intervention Type BEHAVIORAL

Three 60-minute weekly sessions of brisk walking and light aerobics without targeted resistance training.

Interventions

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NASM OPT Group

Three 60-minute weekly sessions for 12 weeks, progressing through stabilization (weeks 1-4), strength endurance (weeks 5-8), and hypertrophy (weeks 9-12) phases. Exercises included hip thrusts, squats, and glute bridges.

Intervention Type BEHAVIORAL

General Exercise Group

Three 60-minute weekly sessions of brisk walking and light aerobics without targeted resistance training.

Intervention Type BEHAVIORAL

Eligibility Criteria

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Inclusion Criteria

* Non-athletic women (no exercise in prior 6 months).
* Interest in improving hip aesthetics.
* No musculoskeletal injuries.

Exclusion Criteria

* Pregnancy
* Chronic illness
* Exercise contraindications
Minimum Eligible Age

20 Years

Maximum Eligible Age

45 Years

Eligible Sex

FEMALE

Accepts Healthy Volunteers

Yes

Sponsors

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University of Sistan and Baluchestan

OTHER

Sponsor Role lead

Responsible Party

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Mohammadreza Rezaeipour

Assoc.Prof.Dr. of Sports Sciences

Responsibility Role PRINCIPAL_INVESTIGATOR

Principal Investigators

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Mohammadreza Rezaeipour, MD, PhD

Role: STUDY_DIRECTOR

Assoc.Prof.Dr. of University of Sistan and Baluchestan, Zahedan, Iran

Locations

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Ferdows Shafa Center

Ferdows, South Khorasan Province, Iran

Site Status

Countries

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Iran

Other Identifiers

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9378-30-2-2025

Identifier Type: -

Identifier Source: org_study_id

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