Video 714 | Core Strength Reset (45 minutes) with Lauren Eirk
7 Day Fitness Plan
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20-Oct-2025
As we age, core strength tends to diminish, often due to repetitive activity, aging discs, sedentary lifestyles, and nutrition. This can often lead to lower back pain and tightness, which is often due to muscle weakness.
In this workout, we will improve core strength and postural stability using the FIS 5-Step Isometrics Blueprint (TM) with bodyweight, a sponge ball, and dumbbells to strengthen weak muscles.
We begin with three isometric exercises for the trunk and spine, then work to integrate these into several multi-joint holds using a sponge ball for support. Once control of these positional holds have been practiced we will transition into bodyweight movements with a new sense of how to engage our muscles. As we begin to add load to these movements for the core, see how the core works in a stabilizing role. The workout finishes with a challenging exercise to optimize muscle health using speed and single-side loading.
Purchase Products used on this video from Amazon:
Neoprene Coated Dumbbells: https://amzn.to/3OCSr28
Small Pilates Sponge Ball: https://amzn.to/3Sgrr8r8
Yoga Mat: https://amzn.to/2ZDSMrH
core strength reset
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