Training, protein, and supplement research on building and keeping muscle and strength, from creatine timing to how older men hold onto lean mass.
This study looked at how a lifetime of endurance exercise affects heart health and muscle strength in older men. It followed 59 men, average age 67, who had been doing…
This study set out to see if creatine supplements work differently when taken with resistance training versus other types of exercise. It pooled data from 39 trials in healthy men…
This study set out to compare how different types of exercise affect muscle metabolism and insulin sensitivity in the short term. Twelve healthy young men did three sessions: sprint intervals…
This study looked at how diet and physical activity shape inflammation in healthy young men. It compared 233 men aged 18-30 grouped by activity level (low, moderate, high), measuring their…
This study set out to compare a micronized form of creatine monohydrate (KleanCREATINE™) with a standard creatine supplement in active men. It had two parts: first, a small test in…
This study set out to clarify how testosterone levels change after a single bout of exercise, given conflicting findings in past research. It reviewed 15 randomized controlled trials with 251…
This study set out to explore whether lower muscle mass is linked to restless legs syndrome (RLS), a condition that disrupts sleep. Researchers analyzed data from 5,752 adults who underwent…
This study compared how low-load and moderate-load circuit training affect strength, performance, and blood markers in men who already lift weights. Thirty-two trained men were split into groups doing either…
This study set out to see if percussive massage (like from a massage gun) helps with muscle swelling, strength, and soreness after a tough leg workout. They had 37 active…
This study tested whether a combination of nicotinamide (a form of vitamin B3) and pyridoxine (vitamin B6) could boost muscle stem cell activity and speed up muscle repair after intense…
This study set out to see how swapping some animal protein for plant protein affects gut bacteria and tryptophan processing in men at risk for heart and metabolic problems. It…
This study set out to see if cutting protein while keeping calories the same could help men with overweight or obesity lose weight. Seventeen men were randomly assigned to eat…
This study looked at how high-intensity exercise and vitamin D3 supplements affect vitamin D levels differently in trained athletes versus untrained men. It compared 22 mixed martial arts athletes and…
This study looked at how high-intensity interval training (HIIT), where short bursts of hard effort alternate with easier recovery periods, with or without L-citrulline (an amino acid that may boost…
This study tested whether pairing intermittent fasting with weightlifting improves body composition in obese men. It randomly assigned 20 obese men aged 20 to 30 to either a normal diet…
This study set out to see whether the timing of a single dose of creatine (a well-studied supplement that helps with short, intense efforts) affects strength performance during a workout.…
This study looked at whether ashwagandha (an herbal supplement traditionally used to blunt stress) helps team-sport athletes handle the strain of pre-season training, when the stress hormone cortisol and fatigue…
This study compared two exercise approaches, high-intensity functional training (HIFT) and traditional resistance training (RT), for improving metabolic, inflammatory, and physical health in overweight men. Thirty-four men with an average…
This study looked at whether resistance exercise and a high-protein diet could improve metabolic flexibility (the body's ability to switch between burning carbs and fats for fuel) in older men.…
This study set out to see if physical fitness is linked to semen quality in Spanish men. Researchers analyzed semen samples from 324 men without known fertility issues, comparing self-reported…
This study set out to see if omega-3 (n-3 PUFA) supplements could boost muscle growth and strength gains from weight training in healthy young men already eating plenty of protein.…
This study looked at handgrip strength (a marker of muscle fitness) and its links to lifestyle and body measures in young Taiwanese adults. It surveyed 501 university students aged 18-25,…
This study set out to assess how exercise affects bone mineral density (BMD) in middle-aged and older men, focusing on different skeletal sites. It pooled data from randomized controlled trials…
This systematic review and meta-analysis looked at how combining aerobic exercise with other interventions affects metabolic, heart, and inflammation markers in men. It pooled data from 14 randomized controlled trials…
This review looked at how aging affects men's hormones, sleep, and metabolism, centering on two kinds of hypogonadism (when the testicles do not make enough testosterone, causing symptoms like low…
This study set out to compare how different home-based hamstring exercises affect flexibility and muscle properties in young men with tight hamstrings. It tested 68 men doing either long-duration stretching,…
This study set out to see if combining creatine (a compound stored in muscle that helps regenerate quick energy) and β-hydroxy-β-methylbutyrate (HMB, a muscle-preserving supplement) with exercise could improve mobility…
This study compared two cardio styles for building muscle when matched for total work and time: HIIT (high-intensity interval training, short bursts of hard effort with rests between) and MICT…
This study compared two approaches to resistance training, linear periodization (a steady progression of weight up and reps down over months) and undulating periodization (varying weight and reps week to…
This study compared two forms of omega-3 supplements, structured triglycerides (STGs) and physical mixtures (PMs), to see which better boosts blood EPA levels and muscle performance. Twenty-eight healthy young men…
This study looked at whether adding modest carbohydrate-energy supplements boosts muscle growth and strength in trained men. Twenty men with an average of nearly 10 years of lifting experience took…
This study tested whether CoQ10, L-carnitine (an amino-acid-like nutrient the body uses to turn fat into energy), or both together improve semen quality in men with low sperm count, poor…
This is a narrative review (an expert summary of existing research, not a new experiment) asking whether testosterone replacement therapy (TRT) could help men with low testosterone hold onto muscle…
This study compared two ways of organising the same lifting session in untrained young men. The test method was cluster set resistance training, meaning a set is broken into small…
This study looked at how different types of exercise affect body composition during weight loss. It compared resistance training, aerobic exercise, and no exercise in 304 adults on a calorie-restricted…
This study looked at whether a short, high-dose creatine (a compound stored in muscle that helps regenerate quick energy for short, hard efforts) routine improves sleep, performance, thinking, and recovery…
This study looked at whether vitamin D levels in the blood are linked to developing sarcopenia (age-related muscle loss) in older adults. It followed 1,292 Korean adults aged 70-84 without…
This meta-analysis (a study that statistically pools many earlier studies) looked at how body mass index (BMI, a weight-for-height number used to flag over- or under-weight) relates to sperm quality…
This study set out to see whether exercise training raises resting testosterone in men who were not very active but otherwise healthy. It pooled 11 randomized trials covering 421 men…
This study looked at how going without sleep affects muscle recovery after hard exercise. Ten men did 240 hard lengthening contractions of the thigh muscles, then either stayed awake for…
This meta-analysis set out to see whether physical exercise causes a short-term rise in testosterone levels in men. It pooled data from 48 studies that measured total and free testosterone…
This study set out to see whether two weeks of eating earlier in the day improves how muscle takes up sugar and amino acids. Sixteen healthy young men were put…
This study set out to see whether doing more weekly sets of resistance training builds more muscle and more strength in men who already train. Trained men were assigned to…
This study looked at whether plunging into cold water after weight training costs a man muscle growth or strength. Sixteen men trained three times a week for seven weeks, half…
This study set out to find hormonal and biochemical markers that could flag overtraining syndrome (OTS) in male athletes. It compared 14 men with OTS to 25 healthy athletes and…
This study set out to see if adding protein supplements after workouts and before bed would boost muscle and strength gains from weight training in older men. It compared 41…
This study set out to see whether resting longer between sets changes how much strength and muscle a trained man builds. Twenty-one resistance-trained men did the same routine for 8…
This study set out to see whether shorter rest periods between sets of resistance exercise boost muscle growth signals more than longer rests. Sixteen young men did leg exercises at…
This paper reports two separate experiments on whether cold water after strength training blunts the adaptation to it. In the first, 21 physically active men trained for 12 weeks, twice…
This study set out to track how testosterone changes as men age, and whether the change is aging itself or the illnesses and medications that come with it. It measured…