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For womenSeated

Single Leg in and Out Left

A seated core and legs exercise from the women’s track. Clasp your hands toward your chest, bend your knees with your feet planted on the ground, then move through extending and bending your left knee toward your chest with control.

Times practiced[1]
4,080
Women’s popularity[2]
#50of 81
Days per active week[3]
1.2days
Difficulty[4]
3/ 5
Clarity[5]
4/ 5
In a workout[6]
30 sec

Practice history: September 28 – October 25, 2026. What do these numbers mean?

WorksCoreLegs

How to do it

  1. Clasp your hands toward your chest, bend your knees with your feet planted on the ground, then move through extending and bending your left knee toward your chest with control

  2. This movement builds core stability while improving coordination between your hips and trunk

What you should feel

Your lower abs drawing the left knee in, with your core keeping you balanced.

About these numbers and scores

Practice history covers September 28 – October 25, 2026. Difficulty and clarity come from the app’s exercise content.

  1. Times practiced. One record per exercise per saved workout. We count the exercise when it is marked complete, the workout is marked complete and its logged duration is positive. This movement has 4,080 counted records in this window. A repeated practice in another workout adds another record. Zero means no qualifying record was found in this window.
  2. Popularity. A count ranking within the women’s track. Only exercises with counted practices are ranked; equal counts share a place. Plan placement and repeat users affect the ranking.
  3. Days per active week. We count different local practice dates for each account in each Monday–Sunday week, then average those counts. Only weeks when that account practiced this exercise are included. Here that is 4,006 account-days ÷ 3,281 active account-weeks. We show the average when at least 10 accounts contributed. It describes this history; it is not a recommended weekly schedule.
  4. Difficulty. 3/5 — middle of the scale on the app’s content scale. Higher means more demanding. This is a fixed exercise score; it is not calculated from usage or a personal assessment.
  5. Clarity. 4/5 — clearer to follow on the app’s content scale. It describes how clearly the instructions and demonstration specify the movement. This is a content score, not a percentage of users who understood it or an average user review.
  6. In a workout. The movement’s default time block in the app. Pauses and settings can change elapsed practice time. It is not a repetition count.

These are saved app records, not verified repetitions or movement quality. Anonymous, unsynced and deleted histories can be missing. Accounts are not a one-to-one count of people, and this snapshot has no comprehensive staff/test-account exclusion.

Full method, scale and data coverage

Try instead

The exercises the app offers in its place: easier, harder or just different.

For women · Lying on your back

Lying Legs Extension

CoreLegs
Difficulty 3/530 sec

Extend both legs away from your body, then draw them back in with control

For women · Lying on your back

Lying Leg Scissors

CoreLegs
Difficulty 4/530 sec

Place your hands behind your head and lift your shoulders off the ground

Workouts with this exercise

Ready-made sessions that include single leg in and out left.

For womenIntermediateCore

Core Backline Builder

Core and back-line strength workout for balanced front and back.

14 min18 movements
For womenAdvancedCore

Teaser Power Set

Advanced core power training with strong posterior chain work.

15 min20 movements

Plans with this exercise

Guides for this practice