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fitnessgifs4u:

Fit Apps: Nike Training Club’s Core Power with Serena Williams

  1. One minute of stability ball back extensions
  2. One minute of stability ball knee tucks
  3. One minute of stability ball transfers
  4. One minute of resistance band hip extensions
  5. One minute of resistance band lateral strap replaces
arthlete:

Because summer is coming and the magazines will be relentless!

arthlete:

Because summer is coming and the magazines will be relentless!