---
title: "Single-Leg Sit-to-Stand 30-Second Test"
description: "Evidence-informed assessment education article for Measurz, Kajabi, Gleap and blog use."
url: https://help.matassessment.com/en/articles/143-single-leg-sit-to-stand-30-second-test
collection: "Strength (Endurance)"
updated: 2026-05-07
language: en
---

# Single-Leg Sit-to-Stand 30-Second Test

Evidence-informed assessment education article for Measurz, Kajabi, Gleap and blog use.

The Single-Leg Sit-to-Stand in 30 Seconds records how many valid single-leg sit-to-stand repetitions a client can complete in 30 seconds. It is a unilateral endurance variation and should not be compared directly with double-leg 30-second chair stand norms.

## Introduction

The test combines single-leg control with a timed endurance format. It is practical for side-to-side comparison, but formal norms are limited.

## Quick Summary

**Test name:** Single-Leg Sit-to-Stand in 30 Seconds  
**Category:** Unilateral lower-limb endurance  
**Primary score:** Valid reps in 30 seconds  
**Best use:** Side-to-side comparison and retesting  
**Key limitation:** Do not compare directly to double-leg chair stand norms.

## What Is the Assessment?

The client performs as many valid single-leg sit-to-stand repetitions as possible in 30 seconds.

## Why It Is Used

Used to assess unilateral lower-limb endurance, repetition capacity and side-to-side differences.

## What It Measures

It may reflect lower-limb strength-endurance, balance, control, confidence, symptoms and movement strategy.

## Who It Is Used For

Useful for athletes, general fitness clients and lower-limb performance monitoring.

## Equipment Required

-   Chair or box of recorded height
    
-   Stopwatch or **Measurz stopwatch**
    
-   **Measurz rep counter**
    
-   Optional **Measurz metronome**
    
-   Optional **Measurz AR measurement** for chair height
    
-   MAT tools for related lower-limb isometric strength testing
    

## Step-by-Step Protocol

1.  Client sits on recorded-height chair or box.
    
2.  One foot remains on the floor; the other is lifted.
    
3.  Start 30-second timer.
    
4.  Client completes as many valid reps as possible.
    
5.  Count full controlled reps only.
    
6.  Repeat other side after adequate rest.
    

## Scoring and Interpretation

Record reps per side, chair height, symptoms, compensations and side-to-side difference.

## Normative Data, Benchmarks or Reference Values

Formal exact-test norms are limited.

**Practical field guide only:**

-   Strong: 15+ reps
    
-   Good: 10–14 reps
    
-   Moderate: 6–9 reps
    
-   Developing: 1–5 reps
    
-   Unable: 0 reps
    

## Reliability and Validity

Use evidence from related single-leg sit-to-stand reliability research and standard 30-second chair stand testing only as context. Do not apply double-leg Senior Fitness Test norms to this unilateral variation.

## Common Errors and Limitations

Using the non-test leg, incomplete standing, uncontrolled descent, excessive momentum, inconsistent chair height and counting poor-quality reps.

## Practical Applications

Useful for unilateral endurance monitoring, side-to-side comparison and lower-limb progress tracking.

## How to Record This in Measurz/MAT

Record side, reps, chair height, pain, symptoms, compensations, balance strategy and retest date.

## FAQs

**Is this the same as the 30-second chair stand test?** No, this is unilateral.  
**Can double-leg norms be used?** No.  
**Should both sides be tested?** Yes.  
**What is a strong score?** 15+ reps may be strong practical field guidance.

## Key Takeaways

-   Timed unilateral endurance test.
    
-   Reps in 30 seconds are recorded.
    
-   Chair height matters.
    
-   Double-leg norms should not be used.
    
-   Measurz can track side, reps and symptoms.
    

## References

Rikli, R. E., & Jones, C. J. (2013). _Senior Fitness Test Manual_ (2nd ed.). Human Kinetics.

Waldhelm, A., et al. (2020). Inter-rater and test-retest reliability of two new single-leg sit-to-stand tests. _International Journal of Sports Physical Therapy_.