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

University of Sistan and Baluchestan

Status: Invitation-only

Conditions: Muscle Weakness; Body Image Disturbance; Low Back Pain

Treatments: Behavioral: General Exercise Group; Behavioral: NASM OPT Group

Study type: Interventional

Funder types: Other

Identifiers

NCT06977958

9378-30-2-2025

Details and patient eligibility

About

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).

Full description

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.

Enrollment: 120 estimated patients

Sex: Female

Ages: 20 to 45 years old

Volunteers: Accepts Healthy Volunteers

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

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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120 participants in 2 patient groups

NASM OPT Group

Experimental group

Description:

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.

Treatment:

Behavioral: NASM OPT Group

General Exercise Group

Active Comparator group

Description:

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

Treatment:

Behavioral: General Exercise Group