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 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 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 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 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 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…