jen turnbull rob sax

Cross Training Workout – functional Fitness Written by Rob Sax Model – Jen turnbull box jump (part B makes this a step up….did you want it to be a step up or a box jump?) a) Swing arms back to gain momentum for jump. Weight concentrated in middle foot. b) land with knees bent and feet on box. Back straight! c) extend knees and stand up until hips are completely open.   Tire flip (ad…