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

Not Applicable

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

• Registration Number: NCT06977958
• Lead Sponsor: University of Sistan and Baluchestan

Brief 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.

Study Timeline

• Study Start: 2025-02-01
• Status Verified: 2025-05
• Study First Submitted: 2025-05-10
• Primary Completion: 2025-05-15
• Study First Submitted QC: 2025-05-16
• Last Update Submitted: 2025-05-16
• Study First Posted: 2025-05-18
• Last Update Posted: 2025-05-18
• Study Completion: 2025-06-30

Recruitment & Eligibility

• Status: ENROLLING_BY_INVITATION
• Sex: Female
• Target Recruitment: 120

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

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Primary Outcome Measures

Name	Time	Method
Perceived Hip Shape/Lift	Baseline, 12 weeks (post-intervention)	5-point Likert scale
Hip Circumference	Baseline, 12 weeks (post-intervention)	cm
Gluteal Strength	Baseline, 12 weeks (post-intervention)	kg; handheld dynamometer

Secondary Outcome Measures

Name	Time	Method
Low Back Pain	Baseline, 12 weeks	VAS, 0-10 cm
Aesthetic Satisfaction	Baseline, 12 weeks	5-point Likert scale
Functional Performance	Baseline, 12 weeks	30-second squat test

Trial Locations

Locations (1)

Ferdows Shafa Center; 🇮🇷 Ferdows, South Khorasan, Iran, Islamic Republic of