Praxis Medical Insights

Est. 2024 • Clinical Guidelines Distilled

Made possible by volunteer editors from the University of Calgary & University of Alberta

Last Updated: 1/1/2026

Physical Activity Recommendations for Adults

Aerobic Exercise

  • Adults should engage in ≥150 minutes per week of moderate‑to‑vigorous aerobic activity, spread over at least three days with no more than two consecutive days without activity to maintain metabolic health. 1
  • For individuals who are already physically active, ≈75 minutes per week of vigorous‑intensity activity may be sufficient to achieve health benefits. 1
  • Performing ≈300 minutes of moderate‑intensity or 150 minutes of vigorous‑intensity activity weekly provides additional health benefits, although the incremental gains diminish at higher volumes. 2
  • There is no scientific requirement to distribute the 150 minutes across five days or to conduct each session for a minimum of 10 minutes; any distribution that meets the total volume is acceptable. 2

Strength (Resistance) Training

  • Adults should perform muscle‑strengthening exercises at least twice weekly on non‑consecutive days, targeting the major muscle groups. [1][3]
  • Strength training can be performed up to six times per week provided different muscle groups are used each session and at least 48 hours of rest is given to the same group. 3
  • Each strength session should include 8–10 different exercises, with 8–12 repetitions per exercise, to optimize muscular adaptations. 2
  • Training intensity should be light to moderate, and the magnitude of strength gains and metabolic benefits increase with higher intensity within this range. 2

Additional Recommendations for Older Adults (≥ 65 years)

  • In addition to aerobic and strength activities, balance exercises 2–3 times per week are advised to reduce fall risk. [2][1]
  • Flexibility exercises should be performed ≥2 days per week for ≥10 minutes, involving all major muscle groups, to preserve range of motion. 2
  • Practices such as yoga or tai chi may be incorporated according to personal preference to further enhance flexibility, strength, and balance. 1

Recommendations for Persons with Diabetes

  • Combining aerobic and resistance training yields additive improvements in glycemic control for adults with type 2 diabetes. [4][5]
  • Interrupt prolonged sedentary periods every 30 minutes with brief activity to support glucose regulation. 1
  • Individuals receiving weight‑loss pharmacotherapy or metabolic surgery should adhere to the general activity guidelines, especially strength training, to preserve lean body mass. 1

Common Errors to Avoid

  • Avoid more than two consecutive days without aerobic activity, as this attenuates the acute insulin‑sensitizing effect of exercise. 1
  • Do not impose a minimum 10‑minute session rule; any amount of physical activity is beneficial and the rule lacks scientific support. 2
  • Do not neglect strength training; it is equally important as aerobic exercise for metabolic health and overall well‑being. [4][3]1
  • For individuals not yet meeting the 150‑minute target, any increase above baseline activity is advantageous; immediate attainment of the full recommendation is not required. [2][1]

American Diabetes Association Recommendations for Type 2 Diabetes Management

Pharmacologic Therapy

  • Metformin is the preferred first‑line medication for all adults with type 2 diabetes unless contraindicated or not tolerated; it should be started at diagnosis alongside lifestyle changes. 6
  • In patients with established cardiovascular disease, heart failure, chronic kidney disease, or high cardiovascular risk, add an SGLT2 inhibitor or a GLP‑1 receptor agonist early to metformin to obtain cardioprotective and renoprotective benefits. 6
  • When metformin alone does not achieve glycemic targets, alternative add‑on agents (DPP‑4 inhibitors, sulfonylureas, thiazolidinediones) may be used, but they lack the proven cardiovascular/renal advantages of SGLT2 inhibitors and GLP‑1 receptor agonists. 6

Lifestyle Modifications

Physical Activity

  • Adults should perform at least 150 minutes per week of moderate‑to‑vigorous aerobic activity, distributed over ≥ 3 days with no more than 2 consecutive days without exercise. 7
  • Include 2–3 resistance‑training sessions per week on non‑consecutive days, targeting major muscle groups. 7
  • Interrupt prolonged sitting every 30 minutes to improve glycemic control. 7
  • For younger or more physically fit individuals, 75 minutes per week of vigorous‑intensity exercise may be sufficient. 7

Nutrition Therapy

  • Provide individualized medical nutrition therapy from a registered dietitian; this reduces A1C by 0.3–2.0 %. 8
  • Emphasize a heart‑healthy dietary pattern with calorie restriction to achieve weight loss in overweight or obese patients. 8
  • Limit sodium intake to < 2,300 mg/day (do not go below 1,500 mg/day even in hypertension). 7
  • Aim for an energy deficit of ≈ 500–750 kcal/day through reduced intake combined with increased physical activity. 8

Weight Management

  • Target a modest weight loss of 5–10 % of body weight, which improves glycemic control, blood pressure, and lipid levels. 8
  • Monitor body‑mass index at least annually to assess progress. 9

Cardiovascular & Renal Risk Management

  • For adults aged 40–75 years, initiate moderate‑intensity statin therapy regardless of baseline cardiovascular risk. 9
  • In patients with multiple cardiovascular risk factors, a high‑intensity statin is reasonable to lower LDL‑C by ≥ 50 %. 9
  • Simultaneously pursue blood‑pressure and lipid goals together with glycemic control. 8

Monitoring & Safety

  • Periodically assess vitamin B12 status in patients receiving metformin, especially those with anemia, to detect possible deficiency. 7

Common Pitfalls to Avoid

  • Do not delay metformin initiation; it should start at diagnosis, not after failed lifestyle modification alone. 6
  • Do not allow more than two consecutive days without exercise, as this reduces acute insulin‑sensitizing effects. 7
  • Do not restrict sodium intake below 1,500 mg/day, even in hypertension, because such low levels are generally not beneficial and are hard to maintain. 7