NASM GPTS study materials
NASM GPTS study resources

A 12-Year Sedentary Client, a Wedding Date, and Three Quit Gyms

NASM GPTS · Put your knowledge to work in context.

All case studies

A 12-Year Sedentary Client, a Wedding Date, and Three Quit Gyms

Priya, 41, has been sedentary for 12 years. Her physician cleared her for exercise with no restrictions; blood pressure is 128/82, resting heart rate 78, and she takes no medication. She is 163 cm and 88 kg (BMI 33). She wants to lose 15 kg before her sister's wedding in 24 weeks and has booked three 40-minute sessions per week at a gym with dumbbells, a cable stack, and machines. She has had two episodes of low back 'twinges' after long days of yard work, each resolving within a few days, with no radiating symptoms. She has never used free weights and is nervous about 'doing it wrong.' She admits she has started and quit three previous gym memberships within six weeks. She asks whether 15 kg is realistic and whether she should do cardio every day.

1. Which OPT phase do you start in, and what acute variables and weekly layout do you use for the first four weeks? Justify each choice against her history.

Read the worked answer

Start in Phase 1, stabilization endurance. Prescribe 1–2 sets building to 3, 12–20 repetitions, a slow 4/2/1 tempo, 0–90 seconds of rest, 4–6 resistance exercises plus 2 core exercises, at an effort of about RPE 5–6. Those variables are chosen for tissue and motor control, not for calorie burn: after 12 years of detraining, tendons, connective tissue, and coordinative skill lag behind her willingness to work.

The low back twinges argue for hip hinge patterning, trunk stability, and avoiding loaded spinal flexion and heavy axial loading early. Equipment limits the menu to dumbbells, cables, and machines, so choose goblet squat to a box, dumbbell Romanian deadlift, split squat, cable row, dumbbell press or incline push-up, Pallof press, and dead bug.

Run three full-body sessions of 40 minutes: 5 minutes of easy bike plus mobility, 25 minutes of resistance work, and 8–10 minutes of cardio starting at 15 minutes and building to 25 at a moderate pace.

Progression criterion at week four: technique consistent across sessions, no recurrence of back symptoms, RPE staying at 7 or below, and at least 10 of 12 sessions attended. If those hold, move toward Phase 2 variables (2–3 sets, 8–12 reps, 60–90 seconds rest) or Phase 4 if strength becomes the priority.

2. She asks whether 15 kg in 24 weeks is realistic and whether daily cardio is the answer. Give your answer with numbers and explain the role of each modality.

Read the worked answer

The arithmetic first: 15 kg over 24 weeks is about 0.62 kg per week, roughly 0.7% of her body weight per week, which sits inside the commonly cited 0.5–1 kg per week range. So it is plausible - but it will not come from exercise alone, and you should say so early rather than let her discover it in week ten.

Estimate the exercise side honestly. Three 40-minute moderate sessions might cost 250–350 kcal each; even four sessions is roughly 1,200–1,400 kcal per week, on the order of 0.15–0.2 kg of fat per week. That is a real contribution but nowhere near 0.62 kg. Nutrition drives the scale; refer her to a registered dietitian rather than writing a diet yourself, which is outside your scope.

Daily cardio is not the answer. In a client who has quit three gyms at six weeks, daily cardio raises injury risk and dropout risk while adding little to the energy deficit. Build from 3 sessions toward 150–250 minutes per week of moderate activity over 8–12 weeks, keep the two or three resistance sessions for lean mass, and add walking as the flexible lever. Track sessions attended, steps, waist circumference, and a two-week weight trend - not the daily scale. Reframe success: 8–10 kg lost and kept, with strength gained, beats 15 kg lost and regained.

3. Her history includes three gyms quit at six weeks. Build adherence into the plan and state the early-warning signs you would watch and how you would respond.

Read the worked answer

Treat the three quits as data: something about the previous dose, environment, or goal structure did not survive contact with her life. Deliberately under-prescribe. Keep three scheduled sessions but define a 20-minute minimum version so a bad day does not become a missed week. Give her a one-page plan. Choose exercises she can perform competently in week one, because early competence is what sustains attendance. Book fixed appointment times rather than open gym access.

Build in implementation intentions - if it is Tuesday at 6 p.m., then she is at the gym - and a simple attendance log. Reinforce attendance, not weight change. Identify the specific barrier she expects (time, intimidation, family obligations) and solve that one before it appears.

Watch for two consecutive missed sessions, a pattern of rescheduling the night before, 'I'll start fresh Monday' language, or frustration tied to the scale. Respond within 48 hours with a shorter session and a renegotiation, not a lecture. Ask about importance and confidence on a 0–10 scale and work with whatever number she gives. Keep the professional boundary clear: no diagnosis and no diet prescription, and refer if you see signs of disordered eating or persistent low mood.