NCT06977958

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

Efficacy of a 12-Week NASM Optimum Performance Training Program on Gluteal Muscle Strength, Hip Aesthetics, and Low Back Pain in Non-Athletic Women: A Randomized Controlled Trial

• Status: Enrolling By Invitation
• Phase: N/A
• Study type: Interventional
• Enrollment: 120 (estimated)
• Sponsor: University of Sistan and Baluchestan · Academic / Other
• Sex: Female
• Age: 20 Years – 45 Years
• Healthy volunteers: Accepted

Summary

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

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

• Low Back Pain
• Muscle Weakness
• Body Image Disturbance

Interventions

Type	Name	Description
BEHAVIORAL	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.
BEHAVIORAL	General Exercise Group	Three 60-minute weekly sessions of brisk walking and light aerobics without targeted resistance training.

Timeline

• Start date: 2025-02-01
• Primary completion: 2025-05-15
• Completion: 2025-06-30
• First posted: 2025-05-18
• Last updated: 2025-05-18

Locations

1 site across 1 country: Iran