High-speed resistance training and balance training for people with knee osteoarthritis to reduce falls risk: study protocol for a pilot randomized controlled trial

Table 1 Details of the exercises and progression of the high-speed resistance program in the three phases

Exercise	% 1RM	Sets × repetitions	Progression
Phase 1 – week 1–2 (4 sessions)
Bilateral leg press	20–40%	2 × 8–12	Load to be increased by 5–10% (of 1RM or % of BW) once participant reaches the upper limit of repetitions during their last set of each exercise with correct technique and velocity of contraction. All weight-bearing exercises will begin using bodyweight only ^aheight of chair/step adjusted to participant’s ability
^aStep up		2 × 8–12
^aSit to stand		2 × 8–12
Calf raise		2 × 8–12
Phase 2 – week 3–5 (6 sessions)
Bilateral leg press	40–60%	2 × 5–8	Load to be increased by 5–10% (of 1RM or % of BW) once participant reaches the upper limit of repetitions during their last set of each exercise with correct technique and velocity of contraction. All weight-bearing exercises will begin using bodyweight only
^aStep up		2 × 5–8
^aSit to stand		2 × 5–8
Calf raise
^bSquat		2 × 5–8
^bStair climbing		2 × 5–8
^bLunge		2 × 5–8
Phase 3 – week 6–8 (6 sessions)
Bilateral leg press	60–80	2–3 × 2–5	Load to be increased by 5–10% (of 1RM or % of BW) once participant reaches the upper limit of repetitions during their last set of each exercise with correct technique and velocity of contraction. All weight-bearing exercises will begin using bodyweight only
Step up		2–3 × 2–5
Sit to stand		2–3 × 2–5
Calf raise		2–3 × 2–5
^bSquat		2–3 × 2–5
^bStair climbing		2–3 × 2–5
^bLunge		2–3 × 2–5

1RM, one repetition maximum, BW body weight
^aheight of chair/step adjusted to participant’s ability
^bexercises to be added if participant is able to perform safely (in Phase 2 from week 4 onward)

ISSN: 1745-6215