The Glazer Protocol is a standardized assessment used in clinical practice to evaluate the bioelectrical activity of the pelvic floor muscles (PFM). It utilizes intrapelvic surface electromyography (sEMG) to provide a non-invasive look at muscle function, helping clinicians identify dysfunctions related to strength, endurance, and neuromuscular coordination.

Clinical Application

This protocol is widely used for patients experiencing:

• Urinary Incontinence: Assessing weakened PFM strength and endurance compared to asymptomatic individuals.

• Pelvic Floor Imbalance: Evaluating muscle activity after childbirth or due to chronic overload.

• Neuromuscular Control Issues: Identifying disturbances in muscle recruitment and relaxation patterns.

Assessment Phases

The protocol captures muscle activity through five distinct phases to build a comprehensive profile of PFM health:

1. Pre-baseline Rest: Establishing a resting baseline of muscle activity.

2. Phasic (Flick) Contractions: Rapid contractions to test the speed of muscle recruitment.

3. Tonic Contractions: Sustained 10-second contractions to assess stability of contraction.

4. Endurance Contraction: A 60-second hold to measure muscle fatigue and stamina.

5. Post-baseline Rest: Evaluating the muscles’ ability to fully relax after exertion.

Key Metrics and Interpretation

The Glazer Protocol analyzes several quantitative parameters to help guide treatment:

• Average Mean Amplitude (uV): Indicates the overall level of muscle recruitment.

• Peak Amplitude: Represents the maximum activity generated during contractions.

• Recruitment and Recovery Latencies: Measures how quickly the muscles can activate (time before peak) and relax (time after peak).

• Amplitude Variability: Assesses the stability of the muscle signal during rest or contraction.

By utilizing this standardized approach, clinicians can gain valuable insights into specific deficits in pelvic floor function, allowing for more targeted and effective rehabilitation.