Browse the evidence

Aerobic and resistance training interventions significantly reduce the risk of falls in older adults.

If you are worried about falling, start a group exercise program that includes strength and balance work. This is the most effective way to lower your fall risk. Staying inactive due to fear actually makes you more vulnerable.

Lengthened partial repetitions (LPs) elicit similar muscle hypertrophy and strength-endurance adaptations as full range of motion (ROM) repetitions in resistance-trained individuals.

If you are a trained lifter, you don't need to force full range of motion if it causes pain or joint issues. You can use lengthened partial reps (starting from the stretched position and going halfway up) and still build muscle and strength just as well as doing full reps. Just make sure you are training to failure and emphasizing the stretch.

Back squat training produces greater thigh hypertrophy (quadriceps and adductors) compared to hip thrust training.

If you want bigger quads and inner thighs, you need to do squats. Hip thrusts are great for glutes, but they don't build the rest of your legs as well as squats do.

A supervised 16-week strength training program performed at 70% 1RM with high volume induces significant strength gains, lean body mass increases, and favorable cardiac remodeling (LV/LA enlargement without functional impairment) in previously untrained women, with magnitude of adaptation similar to or exceeding that of men.

Perform supervised strength training 3 times a week at 70% of your one-rep max. Focus on compound movements (squats, presses, rows). Expect significant strength and lean mass gains within 16 weeks, comparable to men, along with improved heart health markers like ventricular enlargement without functional loss.

Resistance training over a full range of motion is superior to partial range of motion for hypertrophy.

To build the most muscle, perform your exercises through a full range of motion. Partial reps are less effective for hypertrophy.

Distributing a fixed weekly volume of resistance training across four sessions per week yields greater maximal strength gains than performing the same volume in a single session.

If you are an experienced lifter aiming to maximize your squat strength, split your weekly leg volume across four separate sessions (e.g., one heavy compound lift per day) rather than doing it all in one day. This allows you to handle heavier loads with better technique and less fatigue, resulting in significantly greater strength gains over 8 weeks compared to a single weekly session.

High-frequency (4x/week) and low-frequency (1x/week) resistance training produce equivalent improvements in muscle hypertrophy (muscle thickness) and jump height when weekly volume is equated.

If your primary goal is building muscle size (hypertrophy) or improving jump height, you do not need to train your legs 4 times a week. You can achieve similar muscle growth and power improvements by performing the same total volume of exercises in just one session per week. Focus on hitting your total weekly volume and intensity, regardless of how you split the sessions.

High effort (proximity to failure) is a necessary condition for muscle hypertrophy, particularly when using low loads, whereas high-load training inherently generates high effort.

To build muscle, you must train with high effort, meaning you should stop 0-3 reps before you physically cannot complete another repetition. This is true whether you are lifting heavy weights or light weights. If you use light weights, you MUST go close to failure to get similar growth as heavy weights.

Resistance exercise can be effectively performed using bodyweight, provided the intensity and effort are sufficient to overload the neuromuscular system.

You can build strength and muscle using only your body weight. Ensure you are performing exercises that challenge you (e.g., push-ups, squats) with sufficient intensity. If bodyweight exercises become too easy, increase the difficulty (e.g., elevate feet) rather than assuming you need weights.

Daily supplementation with 300 mg of Palmitoylethanolamide (PEA) combined with 8 weeks of resistance training significantly improves lower-body dynamic power (jump height) compared to placebo.

If you want to improve your explosive power (like jumping), adding 300mg of PEA daily to your training routine might help. The study showed a significant improvement in jump height compared to a placebo, suggesting it may support power development alongside strength training.

Personalized nutrition targeting inflammation (PNi) significantly improves body weight, body fat, and inflammatory biomarkers (IL-10, TNF-α, CRP) specifically in individuals with a high genetic predisposition to inflammation (High-PGSi), whereas generic or carbohydrate-focused personalized diets do not yield these specific anti-inflammatory benefits in this subgroup.

If you have a family history of inflammatory conditions or obesity, generic 'healthy eating' advice might not be enough. This research suggests that identifying your genetic risk for inflammation (via a Polygenic Score) allows you to choose a specific anti-inflammatory diet (rich in specific oils, turmeric, and omega-3/6 fats) that can significantly improve your weight, body fat, and inflammatory markers. Without this genetic targeting, standard personalized diets may fail to reduce inflammation in high-risk individuals.

Superset resistance training (performing two exercises consecutively with minimal rest) yields equivalent muscular strength, hypertrophy, and body composition adaptations compared to traditional set training, while reducing total session time by approximately 36%.

If you are already experienced with resistance training, you can save about 36% of your gym time by using supersets (pairing two exercises back-to-back with no rest, then resting after the pair) instead of resting between every set. You will get the same muscle and strength gains, but you will feel more fatigued during the session. Ensure you still train to failure and adjust weights to keep reps in the 8-12 range.

Isometric training at long muscle lengths produces similar quadriceps femoris hypertrophy to full range of motion isotonic training in resistance-trained individuals.

If you want to build quad size, you don't necessarily need to do full squats or leg presses. You can use isometric holds at the bottom of the movement (long muscle length) for 30 seconds per set. Do 3-5 sets per session, twice a week, progressively adding sets over 6 weeks. This will build muscle just as well as traditional dynamic leg exercises, provided you are already trained in resistance training.

Strategies to minimize muscle loss during GLP-1 therapy include increasing protein intake to ≥1.2 g/kg/day and engaging in resistance training 2-3 times per week.

To keep your muscles while losing weight on these drugs, eat at least 1.2 grams of protein per kilogram of your body weight every day. Also, lift weights or do resistance exercises 2-3 times a week. This combination helps protect your strength and metabolic rate.

Combined treatment with structured moderate-to-vigorous exercise and GLP-1 receptor agonist (liraglutide) significantly improves physical functional performance and cardiorespiratory fitness compared to pharmacotherapy alone, whereas pharmacotherapy alone fails to improve these fitness metrics despite weight loss.

If you are using GLP-1 medication for weight loss, do not skip exercise. The medication will help you lose weight, but it will not significantly improve your stamina or physical function. To improve your ability to perform daily tasks (like climbing stairs) and your heart health, you must engage in structured moderate-to-vigorous exercise (at least 150 minutes per week). Combining the medication with exercise yields the best results for physical fitness.

Combining energy restriction with resistance or mixed exercise training is more effective for reducing body fat and preserving/increasing muscle mass than energy restriction alone.

To lose fat without losing muscle, combine a moderate calorie deficit with resistance training (2-3 times per week) and/or mixed exercise. Ensure you are eating enough protein (1.1-1.7 g/kg body weight). This combination yields the best body composition changes, superior to diet or exercise alone.

Low-load resistance training with blood flow restriction (LL-RT with BFR) produces muscle hypertrophy equivalent to high-load resistance training (HL-RT) across various repetition schemes, including sets to failure, 15-rep sets, and 75-rep segmented sets.

If you cannot lift heavy weights due to injury, age, or joint pain, you can still build muscle by using Blood Flow Restriction (BFR) with lighter weights (20-40% of your max). Perform this 2-3 times a week for 6-16 weeks. You can use different repetition schemes (like 15 reps or sets to failure) and still get similar muscle growth as heavy lifting.

Single-set resistance training performed to 2 repetitions in reserve (RIR-2) produces similar gains in muscular strength and local muscular endurance compared to training to failure (FAIL) in resistance-trained individuals.

If you are already trained, you do not need to train to failure on every set to build strength or muscle. Stopping your sets with 2 reps left in the tank (RIR-2) yields the same strength and endurance results as going to failure, while likely feeling better and allowing for better recovery. This makes training more sustainable and time-efficient.

Sarcopenic obesity, characterized by the combination of obesity and loss of lean muscle mass, is a significant nutrition risk that requires specific monitoring and interventions like enhanced protein intake and weight-bearing exercise.

If you are losing weight rapidly or are older, watch out for sarcopenic obesity (losing muscle along with fat). To protect your muscle, increase your protein intake and do weight-bearing exercises. Your doctor should monitor your body composition, not just your weight.

Combining resistance training with a high-protein diet (1.2–1.6 g/kg/day) significantly enhances muscle hypertrophy and strength gains compared to resistance training alone.

To maximize muscle growth and strength, combine regular resistance training with a diet providing 1.2 to 1.6 grams of protein per kilogram of your body weight daily. This combination is the most effective non-drug method for building muscle. Ensure your protein intake is adequate to support the mechanical stress of training, as this synergy drives greater hypertrophy than training alone.

Resistance training combined with adequate protein intake (approx. 1.6 g/kg/day) maximizes muscle protein synthesis and hypertrophy by activating the mTORC1 pathway, whereas chronic mTOR hyperactivation without balance contributes to metabolic disease.

To maximize muscle growth, engage in resistance training and consume approximately 1.6 grams of protein per kilogram of body weight daily. Distribute this protein evenly across your meals, aiming for about 0.25 g/kg per meal if you are younger, or 0.40 g/kg per meal if you are older to overcome age-related anabolic resistance. Prioritize high-quality, leucine-rich protein sources like whey. To support long-term metabolic health, balance this anabolic focus with periodic AMPK activation through intermittent fasting or aerobic exercise.

Individualized nutritional rehabilitation, including whey protein (10g 3x/day), fish oil, and vitamin D supplementation combined with resistance training, significantly improves muscle strength, cognitive function, and quality of life in elderly patients with sarcopenia and cognitive impairment compared to standard care.

For elderly patients with both muscle loss and cognitive decline, a standard diet and exercise plan is often insufficient. A specialized program combining high-quality whey protein (10g, 3 times daily), Omega-3s with Vitamin D, and targeted resistance training, managed by a multidisciplinary team, significantly improves strength, thinking skills, and daily living ability. This approach requires more resources but yields superior functional outcomes for this vulnerable population.

Higher weekly resistance training load is associated with greater lean body mass index (LBMI) in amateur bodybuilders, but this relationship is curvilinear, showing diminishing returns and potential stagnation at very high loads.

Track your weekly training load (sets x intensity/effort). You will likely see muscle gains as you increase this load, but once you reach a 'high' level, adding more volume yields very little extra muscle. Stop increasing volume when you hit the 'high' band; further increases may just add fatigue without adding size.

Achieving a sex-specific high lean-mass profile is significantly associated with a combination of moderate-to-high training load, high recovery status, and adequate protein intake.

To maximize your lean mass, you need to hit the 'sweet spot' of training: high enough to stimulate growth, but not so high that you can't recover. Ensure you are eating enough protein (~1.75 g/kg) and sleeping well. It is the combination of these factors that predicts the best physique.