A recent clinical trial reports a sustained-release ashwagandha extract improved strength and endurance in active adults. What does this mean for older golfers?
Our updates usually begin with a professional weekend withdrawal on tour. Today's development comes directly from a laboratory instead. Because the verified research focuses entirely on an endurance supplement trial, there is no acute injury to report today. We must state plainly that our usual breakdown of a player withdrawal does not apply to this specific update.
On September 16 2026, NutraIngredients covered a new placebo-controlled trial published in Frontiers in Nutrition. The study examined a sustained-release ashwagandha root extract in healthy adults. The trial was conducted at Rajalakshmi Hospital and Research Center in India. It used a single-center, parallel-group design.
Researchers enrolled 84 recreationally active participants aged 25 to 50. There were 42 participants assigned to the ashwagandha group and 42 assigned to the placebo group. The study was relatively small, with 84 randomized participants and 83 reported completers overall. They compared 300 mg per day of the extract against a placebo for roughly 90 days.
Since there is no tour pro issue to break down today, we will skip the mechanical breakdown of a joint failure. We will examine how muscular strength and cardiorespiratory endurance mechanically support the golf swing instead. During a normal round, your lower body must repeatedly generate rotational power from the ground up. Your cardiovascular system must concurrently supply oxygen to your muscles while you walk hilly terrain.
When endurance fades late in a round, your posture breaks down mechanically. This mechanical breakdown places unwanted stress on your lower back and shoulders during the downswing. Building a foundation of strength, balance, and rotational control requires dedicated physical work. The recent trial assessed bench-press one-repetition maximum as its primary measure of muscular strength.
The research team also estimated VO₂max as its specific cardiorespiratory endurance measure for the participants. These two metrics are reliable indicators of general physical stamina and functional capacity. Improving these markers can help older players maintain a consistent swing plane throughout a full round. Stronger muscles simply absorb repetitive forces better than fatigued tissues do.
Recreational golfers over 40 face a massive risk of losing their late-round endurance. You might swing with much less speed than a tour professional does. However, aging joints and muscles require more recovery time after carrying a bag or walking 18 holes. This fading stamina is a serious threat to your long-term playing longevity.
The saddest thing I have seen in golf is watching lifelong playing partners slowly drop out of our weekend group. It usually starts with a nagging shoulder or knee issue they ignore until it requires surgery. That pattern is exactly why I became obsessed with golf longevity. We do not have to stop playing as we age, provided we do the right maintenance work between rounds.
For many older players, implementing a simple walking routine is the first step toward better physical conditioning. Age naturally diminishes our aerobic capacity if we stop pushing our physical limits. Our resting heart rates climb while our fast-twitch muscle fibers slowly atrophy over time. This biological reality makes structured physical conditioning non-negotiable for mature players.
The most grounded adjustment you can make is prioritizing strength training for endurance over passive supplements. The trial participants were gym-going men and non-pregnant women with a body-mass index between 25.0 and 29.9 kg/m². They were already active and followed a structured resistance training protocol during the test. The ashwagandha group reportedly achieved a 2.1-fold improvement in bench-press strength compared with the placebo group.
The active group also saw a 1.5-fold improvement in cardiorespiratory endurance. Rajat Mittal Shah is Nutriventia’s co-founder and executive director. He stated that adults taking the Ashwanova extract showed a clear, statistically significant separation from placebo for muscle strength and cardiorespiratory endurance. Nutriventia was identified as the manufacturer of the specific product tested in the trial.
Years ago, I used to stand on the first tee doing long, static hamstring stretches because I thought it was the right way to warm up. I would actually feel weaker on my first drive. Research later showed me that dynamic movements, like leg swings and torso twists, prime the nervous system much better. Changing my five minute warmup completely transformed my opening tee shots.
We must apply that same evidence-based mindset to our daily supplementation habits. Before adding 300 mg per day of any botanical extract, focus entirely on turning your trail hip during a proper warmup. Small mechanical adjustments often yield far better results than passive herbal remedies. True performance gains require active participation from the athlete.
Many players assume a daily supplement will automatically prevent golf injuries or speed up muscle recovery. The reported data from this specific study does not support this misconception. The trial monitored post-exercise creatine kinase and lactate dehydrogenase as indicators related to muscle damage. The reported between-group differences for these specific markers were not statistically significant.
A pill simply cannot replace the hard work of structured physical training or proper load management. Safety is another critical factor for older players to weigh carefully before buying new supplements. Six participants in the ashwagandha group and 10 in the placebo group reported adverse events. This accounted for 16 participants overall reporting negative side effects during the clinical trial.
On September 10 2026, NutraIngredients reported a separate safety trial involving 1,002 adults. That separate study used Ixoreal Biomed’s KSM-66 root extract for an eight-week testing period. You must remember that results from one formulation do not apply to all available products. Every branded extract carries its own unique dosage requirements and potential safety considerations.
The researchers assessed participants at baseline and on days 30, 60, and 91. The available data suggests the article described a 2.6-fold greater improvement in emotional wellbeing and calmness versus placebo. The extract was identified as AshwaSR or Ashwanova and is marketed as Prolanza in some markets. Older players with complex medical histories should consult a professional before starting new supplements.
These findings offer an interesting glimpse into how nutritional science might support recreational athletes. We will continue monitoring clinical trials to see how these adaptogens impact long-term physical recovery. Consistent exercise remains the absolute best defense against the physical decline associated with aging. What adjustments will you make to your mobility routine this season to steer clear of this hazard?
Follow Golfergy for practical insights on performance, mobility, recovery and healthy ageing. Stay connected for new articles, research-led guidance and ideas to help you play better for longer.
Rory McIlroy’s 60 at Wentworth shows the power of quality rest. Learn why golfers over 40 must prioritize sleep to protect their swing and stay healthy.
A 2026 analysis shows mid-round caffeine can boost golf performance, but older players must balance course energy with strict cutoffs to protect their sleep.
A recent review explores how a daily creatine maintenance dose may help older golfers manage cognitive fatigue and physical impairment after poor sleep.
Explore practical resources on performance, recovery, mobility and golf longevity.
Read the Blog
