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. 2020 Feb 13;10:2506. doi: 10.1038/s41598-020-59105-0

Table 4.

Detailed intervention program for all groups and phases. Note: I-FRT = free-weight instability resistance training; S-MRT = stable machine-based resistance training, S-MRTHIP = stable machine-based adductor/abductor training. bw = body weight; 1-RM = one repetition maximum; BOSU = BOth Sides Utilized; ROM = Range of Motion; ML = mediolateral.

Intro-phase (1 week) Block I (3 weeks) Block II (3 weeks) Block III (3 weeks)
~2 × 12 reps (with low weights) 3 × 15 reps (50% of the 1-RM) 3–4 × 15 reps (60% of the 1-RM) 4 × 15 reps (60% of the 1-RM)
I-FRT
Cross-Trainer 10 min 10 min 10 min 10 min
Squats 150° knee flex/ext angle on AIREX coordination rocker board round 120° knee flex/ext angle on Thera-Band balance pads placed on AIREX coordination rocker board angled 100° knee flex/ext angle on AIREX balance pad placed on AIREX coordination rocker board angled 100° knee flex/ext angle on BOSU ball or Variosensa board
Front lunges Thera-Band Balance Pads (front foot) AIREX coordination rocker board round (front foot) and Thera-Band Balance Pads (rear foot) AIREX balance pad (front foot) and Thera-Band Balance Pads (rear foot) AIREX balance pad (front foot) and AIREX balance spinner soft (rear foot)
Core Exercise (Bridge Exercise) No additional device TOGU DYNAIR (under feet) TOGU DYNAIR (under shoulder) & BOSU (under feet) Swiss ball (under feet)
Walking with dumbbells 2 min without dumbbells on terrasensa flats 3 min with 5% of bw on terrasensa flats 4 min with 10% of bw on terrasensa classics 5 min with 15% of bw on terrasensa
Walking with dumbbells 2 min without dumbbells 3 min with 5% of BW 4 min with 10% of BW 5 min with 15% of BW
S-MRT
Cross-Trainer 10 min 10 min 10 min 10 min
Smith-Machine 150° knee flex/ext angle 120° knee flex/ext angle 100° knee flex/ext angle 100° knee flex/ext angle
Leg-Press 90° knee flex/ext angle 90° knee flex/ext angle 90° knee flex/ext angle 90° knee flex/ext angle
Core Exercise Bridge exercise (2 × 15 reps) Bridge exercise (3 × 20 reps) Crunches (4 × 20 reps) Air Bike Crunches (4 × 20 reps)
Walking with dumbbells 2 min without dumbbells 3 min with 5% of BW 4 min with 10% of BW 5 min with 15% of BW
S-MRTHIP
Cross-Trainer 10 min 10 min 10 min 10 min
Adductor Habituation Full ROM Full ROM Full ROM
Abductor Habituation Full ROM Full ROM Full ROM
Adductor Thera-Band Habituation Full ROM Full ROM Full ROM
Abductor Thera-Band Habituation Full ROM Full ROM Full ROM
Core Exercise Side plank on knees Side Crunches Standing Oblique Crunch Russian Sitting twist with dumbbell 5% bw
treadmill walking on robowalk 2 min habituation 3 min with ML pull above knee joint with 5% of BW 4 min with ML pull at ankles with 5% of BW 5 min with ML pull above knee joint and at ankles with 5% of BW, respectively