When you're using weight‑loss injections, protecting your muscle becomes just as important as losing fat. Weight‑bearing and bodyweight exercises are some of the most effective ways to maintain strength, mobility, and metabolism — without needing any equipment.
Pharmacist & Lifestyle Medicine Expert Liz O'Hagan shares five simple, joint‑friendly exercises that support muscle preservation, plus a 20‑minute routine you can follow at home.
1. Squats
Targets: Quads, hamstrings, glutes
Why it helps: One of the best full‑body, muscle‑preserving movements.
How to do it:
- Stand with feet shoulder‑width apart
- Sit back and down as if lowering into a chair
- Keep chest upright and knees tracking over toes
- Push through your heels to stand
Progression: Slow the tempo or pause at the bottom.
2. Push‑Ups
Targets: Chest, shoulders, triceps, core
Why it helps: Maintains upper‑body pushing strength.
How to do it:
- Place hands slightly wider than shoulders
- Keep body in a straight line
- Lower chest toward the floor
- Push back up
Modification: Use knees or elevate hands on a bench or counter.
3. Reverse Lunges
Targets: Glutes, quads, hamstrings
Why it helps: Single‑leg work improves balance and hip strength.
How to do it:
- Step one leg back
- Lower until the front thigh is parallel
- Push through the front heel to return
- Alternate sides
Progression: Slow the descent or add a pause.
4. Glute Bridges
Targets: Glutes, hamstrings
Why it helps: Strengthens the posterior chain and supports hip stability.
How to do it:
- Lie on your back with knees bent
- Press heels into the floor
- Lift hips until your body forms a straight line
- Squeeze glutes at the top
Progression: Try single‑leg bridges.
5. Plank Variations
Targets: Core, shoulders
Why it helps: Builds core stability and upper‑body endurance.
How to do it:
- Place elbows under shoulders
- Keep body straight
- Brace your core and hold
Progression: Add shoulder taps or switch to side planks.
How to Use These Exercises for Muscle Maintenance
To help preserve muscle during weight loss:
- 2–4 sessions per week
- 2–4 sets per exercise
- 8–15 reps (or 20–45 seconds for planks)
- Focus on slow, controlled movement
- Aim to finish each set feeling like you could only do 1–2 more reps
20‑Minute Muscle‑Maintenance Routine
Try this routine 2–3 times per week to stimulate all major muscle groups. It's joint‑friendly, requires no equipment, and is designed to be effective without being exhausting.
Structure
- 3 circuits
- ~6 minutes per circuit
- 30–45 seconds rest between exercises
- 1 minute rest between circuits
Move with control and aim to finish each set close to fatigue.
Circuit 1 — Lower Body Focus
- Squats – 12–15 reps (Slow 3 seconds on the way down.)
- Reverse Lunges – 8–10 reps each leg
- Glute Bridges – 15 reps (Pause 1 second at the top.)
Repeat once (2 rounds total).
Circuit 2 — Upper Body Push + Core
- Push‑Ups – 8–12 reps (Use knees or incline if needed.)
- Plank Hold – 30–40 seconds
- Slow Mountain Climbers – 20 total reps (Controlled, not cardio pace.)
Repeat once.
Circuit 3 — Full Body Strength Stimulus
- Wall Sit – 30–45 seconds
- Chair or Bench Triceps Dips – 8–12 reps
- Standing Calf Raises – 15–20 reps (Pause briefly at the top.)
Repeat once.
Weekly Plan Example
Option A — Minimum Effective Dose
- Monday
- Thursday
Option B — Stronger Muscle Protection
- Monday
- Wednesday
- Saturday
Important Tips When Using Weight‑Loss Injections
Because appetite may be reduced:
- Prioritise protein (around 1.2–1.6 g per kg body weight daily)
- Train even on low‑energy days — reduce reps rather than skipping
- If strength is dropping week to week, increase protein slightly
Progress by:
- Slowing tempo
- Adding pauses
- Increasing reps gradually
